{"id":8366,"date":"2026-05-13T08:19:52","date_gmt":"2026-05-13T12:19:52","guid":{"rendered":"https:\/\/montrealtips.com\/?p=8366"},"modified":"2026-05-13T08:22:58","modified_gmt":"2026-05-13T12:22:58","slug":"summer-in-ottawa-2026-a-bifurcated-season-shaped-by-el-nino","status":"publish","type":"post","link":"https:\/\/montrealtips.com\/fr\/2026\/05\/13\/summer-in-ottawa-2026-a-bifurcated-season-shaped-by-el-nino\/","title":{"rendered":"L'\u00e9t\u00e9 \u00e0 Ottawa en 2026\u00a0: une saison en deux temps, fa\u00e7onn\u00e9e par El Ni\u00f1o"},"content":{"rendered":"

<\/p>\n

\n

Pr\u00e9visions saisonni\u00e8res et climat<\/span><\/p>\n

L'\u00e9t\u00e9 \u00e0 Ottawa en 2026\u00a0: une saison en deux temps, fa\u00e7onn\u00e9e par El Ni\u00f1o<\/h1>\n

A rapid switch from La Ni\u00f1a to a possibly Super El Ni\u00f1o is reorganizing the jet stream \u2014 and Ottawa sits squarely in the zone forecast to start cool and unsettled before flipping toward intense mid-summer heat. Here’s the data, the climate baseline, and the trend underneath.<\/p>\n

P\u00e9riode:<\/strong> Juin \u2013 ao\u00fbt 2026<\/span>
\nSources :<\/strong> ECCC, The Weather Network, NOAA, WMO<\/span>
\nGare:<\/strong> Ottawa Macdonald-Cartier (CYOW)<\/div>\n

<\/p>\n

\n
\n
26,5\u00b0C<\/div>\n
Temp\u00e9rature maximale moyenne en juillet (normale)<\/div>\n<\/div>\n
\n
+1,5\u00b0C<\/div>\n
R\u00e9chauffement estival depuis 1948<\/div>\n<\/div>\n
\n
37.8\u00b0C<\/div>\n
All-Time Hottest Day<\/div>\n<\/div>\n
\n
61%<\/div>\n
Chance of El Ni\u00f1o by Mid-Summer<\/div>\n<\/div>\n<\/div>\n

Ottawa enters summer 2026 after a colder-than-normal spring shaped by La Ni\u00f1a and polar vortex disruptions. Now the script flips. The Pacific Ocean is rapidly transitioning to El Ni\u00f1o \u2014 possibly a “Super” event by autumn \u2014 and the seasonal forecasters at The Weather Network, NOAA, and the WMO are aligned on what that means for central Canada: Ottawa starts cool, then takes on intense mid-summer heat.<\/p>\n

Underneath the season-to-season variability sits a steady warming trend. Ottawa summers have warmed by roughly 1.5\u00b0C since 1948. The number of 30\u00b0C+ days per summer has more than doubled over the same window. Tropical nights \u2014 once a rarity \u2014 are now an annual event. Here’s the full picture.<\/p>\n

<\/p>\n

The 2026 Forecast for Ottawa<\/h2>\n

The Weather Network’s April 2026 sneak peek describes a country split in two by the developing El Ni\u00f1o: hot West and Atlantic, cool and unsettled Centre. Ottawa sits in the cool\/unsettled zone \u2014 at least early. NOAA gives El Ni\u00f1o a 61% chance of officially emerging during the May\u2013July window, with WMO models suggesting it could intensify into a strong or “Super” event by autumn.<\/p>\n

\n\n\n\n\n\n\n\n
Mois<\/th>\nPerspectives temporaires<\/th>\nPr\u00e9cipitation<\/th>\nSurveillance des risques<\/th>\n<\/tr>\n<\/thead>\n
Juin<\/strong><\/td>\nCool\/unsettled start; warming late<\/td>\nAu-dessus de la normale<\/td>\nOrages violents ; inondations<\/td>\n<\/tr>\n
Juillet<\/strong><\/td>\nHot peaks; heat-wave-loaded<\/td>\nVariable; below normal late<\/td>\nVagues de chaleur ; importations de fum\u00e9e<\/td>\n<\/tr>\n
Ao\u00fbt<\/strong><\/td>\nAbove normal; mid-month surge<\/td>\nOrages fr\u00e9quents apr\u00e8s le 17 ao\u00fbt<\/td>\nvestiges de syst\u00e8mes tropicaux<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Ottawa’s 2026 summer: a slow June, a hot July, and a stormy<\/span> August.<\/p>\n

<\/p>\n

What “Normal” Looks Like in an Ottawa Summer<\/h2>\n

Before the forecast, the baseline. Here’s what each month of a typical Ottawa summer delivers, based on the Environment Canada climate normals for Ottawa Macdonald-Cartier International Airport (CYOW).<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
M\u00e9trique<\/th>\nJuin<\/th>\nJuillet<\/th>\nAo\u00fbt<\/th>\n<\/tr>\n<\/thead>\n
pic quotidien moyen<\/strong><\/td>\n23.8\u00b0C<\/td>\n26,5\u00b0C<\/td>\n25.3\u00b0C<\/td>\n<\/tr>\n
Moyenne quotidienne minimale<\/strong><\/td>\n12.2\u00b0C<\/td>\n14.5\u00b0C<\/td>\n13.2\u00b0C<\/td>\n<\/tr>\n
Pr\u00e9cipitations (mm)<\/strong><\/td>\n97 mm<\/td>\n89 mm<\/td>\n79 mm<\/td>\n<\/tr>\n
Jours de pr\u00e9cipitations<\/strong><\/td>\n~10<\/td>\n~10<\/td>\n~9<\/td>\n<\/tr>\n
Ensoleillement (heures)<\/strong><\/td>\n255 h<\/td>\n330 h<\/td>\n258 h<\/td>\n<\/tr>\n
Humidit\u00e9 moyenne<\/strong><\/td>\n64%<\/td>\n66%<\/td>\n69%<\/td>\n<\/tr>\n
Vitesse moyenne du vent<\/strong><\/td>\n10,9 km\/h<\/td>\n10.4 km\/h<\/td>\n10.1 km\/h<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Trois choses ressortent. July is Ottawa’s sunniest month<\/strong> \u2014 330 hours of sunshine, more than any other Canadian capital region. June is Ottawa’s wettest summer month<\/strong> at 97 mm \u2014 heavier than Montr\u00e9al, Toronto, or Halifax. And Ottawa is one of Canada’s calmer cities<\/strong> in summer, with average wind speeds around 10 km\/h \u2014 significantly less than coastal cities like Halifax or windy Prairie capitals.<\/p>\n

<\/p>\n

Ottawa’s Surprising Heat Profile<\/h2>\n

Most Canadians don’t realize Ottawa has one of the largest summer-to-winter temperature swings of any capital city in the world. The annual range \u2014 from -37.2\u00b0C (1957 cold record) to +37.8\u00b0C (1986 heat record) \u2014 is 75 degr\u00e9s<\/strong>, a thermal spread larger than New York, Beijing, or Berlin.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Enregistrer<\/th>\nValeur<\/th>\nDate<\/th>\n<\/tr>\n<\/thead>\n
All-time hottest day<\/strong><\/td>\n37.8\u00b0C<\/td>\nAugust 1, 1975 \/ July 11, 2020<\/td>\n<\/tr>\n
Hottest July day<\/strong><\/td>\n36.4\u00b0C<\/td>\nJuly 11, 2020<\/td>\n<\/tr>\n
Hottest August day<\/strong><\/td>\n37.3\u00b0C<\/td>\nAugust 9, 2001<\/td>\n<\/tr>\n
All-time coldest<\/strong><\/td>\n\u221237.2\u00b0C<\/td>\nJanuary 1957<\/td>\n<\/tr>\n
Annual range<\/strong><\/td>\n75.0\u00b0C<\/td>\n\u2014 third-largest in Canada<\/td>\n<\/tr>\n
30\u00b0C+ days per year (avg)<\/strong><\/td>\n~12<\/td>\n\u2014 rising fast<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

The First 30\u00b0C Day in Ottawa \u2014 Year-Over-Year<\/h2>\n

Ottawa typically sees its first 30\u00b0C day in mid-to-late June. Here’s how recent years have played out \u2014 and what we’d expect for 2026 given the cool-start forecast.<\/p>\n

\n
First 30\u00b0C Day \u2014 Ottawa, by Year<\/div>\n
\n
2020<\/div>\n
\n
<\/div>\n<\/div>\n
27 mai<\/div>\n<\/div>\n
\n
2024<\/div>\n
\n
<\/div>\n<\/div>\n
17 juin<\/div>\n<\/div>\n
\n
2025<\/div>\n
\n
<\/div>\n<\/div>\n
23 juin<\/div>\n<\/div>\n
\n
2023<\/div>\n
\n
<\/div>\n<\/div>\n
28 juin<\/div>\n<\/div>\n
\n
2022<\/div>\n
\n
<\/div>\n<\/div>\n
6 juillet<\/div>\n<\/div>\n
\n
moyenne \u00e0 long terme<\/div>\n
\n
<\/div>\n<\/div>\n
~28 juin<\/div>\n<\/div>\n<\/div>\n

Ann\u00e9es 2020 27 mai<\/strong> remains the all-time earliest 30\u00b0C+ day in Ottawa’s modern record. The mercury reached 32.9\u00b0C that day, with the same heat dome reaching Montr\u00e9al at 36.6\u00b0C. For 2026, both forecasts point to a fin juin ou d\u00e9but juillet<\/strong> first 30\u00b0C day, followed by a heat-loaded mid-summer.<\/p>\n

<\/p>\n

The Heat Wave Decade Trend in Ottawa<\/h2>\n

The number of days that hit or exceed 30\u00b0C in an Ottawa summer has more than doubled since the 1980s. This is the trend that drove the deadly 2018 heat wave, and it’s the trend that Ottawa Public Health is now actively planning around.<\/p>\n

\n
30\u00b0C+ Days per Summer in Ottawa \u2014 by Decade<\/div>\n
\n
ann\u00e9es 1980<\/div>\n
\n
<\/div>\n<\/div>\n
~7<\/div>\n<\/div>\n
\n
ann\u00e9es 1990<\/div>\n
\n
<\/div>\n<\/div>\n
~9<\/div>\n<\/div>\n
\n
ann\u00e9es 2000<\/div>\n
\n
<\/div>\n<\/div>\n
~12<\/div>\n<\/div>\n
\n
ann\u00e9es 2010<\/div>\n
\n
<\/div>\n<\/div>\n
~16<\/div>\n<\/div>\n
\n
2020\u201325<\/div>\n
\n
<\/div>\n<\/div>\n
~21<\/div>\n<\/div>\n<\/div>\n

Estimations annuelles bas\u00e9es sur les relev\u00e9s climatiques quotidiens d'Environnement Canada.<\/p>\n

<\/p>\n

Memorable Ottawa Summers \u2014 The Records<\/h2>\n
\n
\n
<\/div>\n
1er ao\u00fbt 1975<\/div>\n
All-Time Ottawa Heat Record \u2014 37.8\u00b0C<\/div>\n
The same continental heat dome that produced Montr\u00e9al’s all-time record (37.6\u00b0C) on the same day. Ottawa hit 37.8\u00b0C \u2014 a record that stood for 45 years until being matched (but not broken) in July 2020.<\/div>\n<\/div>\n
\n
<\/div>\n
August 9, 2001<\/div>\n
Hottest August Day Ever \u2014 37.3\u00b0C<\/div>\n
A late-summer heat wave produced Ottawa’s hottest August day on record. The Rideau Canal’s water temperature briefly hit “swimming pool” levels in the high 20s.<\/div>\n<\/div>\n
\n
<\/div>\n
30 juin \u2013 8 juillet 2018<\/div>\n
The Ottawa-Gatineau Heat Wave<\/div>\n
The same eastern Canada heat wave that killed 66 people in Montr\u00e9al hit Ottawa-Gatineau hard. Ottawa Public Health investigated multiple heat-related deaths. Daily highs reached 35\u00b0C with humidex values touching 45\u00b0C. The week-long event prompted a permanent expansion of the city’s cooling-centre network.<\/div>\n<\/div>\n
\n
<\/div>\n
September 21, 2018<\/div>\n
The Ottawa-Gatineau Tornado Outbreak<\/div>\n
Six tornadoes touched down in the National Capital Region, including an EF-3 in Dunrobin and an EF-2 in Gatineau. Over 200 homes were destroyed. The peak gust at Ottawa airport hit 165 km\/h. The event remains one of the costliest tornado outbreaks in Canadian history at over $300 million in insured losses.<\/div>\n<\/div>\n
\n
<\/div>\n
May 21, 2022<\/div>\n
The Derecho \u2014 Ottawa’s Worst Storm in Decades<\/div>\n
A 1,000-km derecho swept across southern Ontario and Quebec, hitting Ottawa with sustained 120 km\/h winds. The storm killed 11 people across the region and left over 1 million Hydro Ottawa, Hydro Quebec, and Hydro One customers without power \u2014 some for over a week. Total damages exceeded $1 billion. It remains the costliest single weather event in Ottawa’s modern history.<\/div>\n<\/div>\n
\n
<\/div>\n
Juin 2023<\/div>\n
The Smoke Month<\/div>\n
Ottawa’s air quality reached “Very High Risk” (AQHI 10+) on multiple days as wildfire smoke from Quebec, Ontario, and the Prairies blanketed the city. School outdoor activities were cancelled. The Ottawa Race Weekend that year was significantly affected. The visual signature \u2014 orange skies over Parliament Hill \u2014 became one of the iconic images of Canada’s 2023 fire season.<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

Heat Warning Thresholds in Ottawa<\/h2>\n

Environment Canada and Ottawa Public Health use specific thresholds to issue heat warnings. Knowing what triggers what makes the alerts more meaningful when they show up on your phone.<\/p>\n

\n\n\n\n\n\n\n\n\n
Heat Threshold<\/th>\nQuels sont les d\u00e9clencheurs ?<\/th>\n<\/tr>\n<\/thead>\n
Alerte canicule<\/strong><\/td>\nTwo or more consecutive days at 31\u00b0C+ with humidex 40\u00b0C+, OR overnight low staying above 20\u00b0C \u2014 issued by ECCC<\/td>\n<\/tr>\n
Extended Heat Warning<\/strong><\/td>\nSame conditions persisting 3+ days \u2014 triggers cooling-centre activation<\/td>\n<\/tr>\n
Nuit tropicale<\/strong><\/td>\nOvernight low does not drop below 20\u00b0C \u2014 drives heat-related mortality<\/td>\n<\/tr>\n
Journ\u00e9e chaude<\/strong><\/td>\nDaily maximum \u2265 30\u00b0C \u2014 used for trend tracking<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The metric that matters most for human health is nuits tropicales<\/strong>. The 2018 heat wave’s mortality across Ottawa-Gatineau was driven primarily by consecutive nights where the temperature stayed above 20\u00b0C. With the 2026 forecast pointing to a hot, possibly humid late July, that’s the metric to watch closely.<\/p>\n

<\/p>\n

La question de la fum\u00e9e des feux de for\u00eat<\/h2>\n

Ottawa is uniquely exposed to wildfire smoke because of its position downwind from Quebec, Ontario, and Prairie fire zones. June 2023 produced the worst air-quality stretch in the city’s measured history. 2024 and 2025 each delivered multiple smoke episodes. The 2026 risk is elevated.<\/p>\n

\n
Saisons r\u00e9centes des feux de for\u00eat au Canada (superficie br\u00fbl\u00e9e)<\/div>\n
\n
2023<\/div>\n
\n
<\/div>\n<\/div>\n
~150 000 km\u00b2<\/div>\n<\/div>\n
\n
2025<\/div>\n
\n
<\/div>\n<\/div>\n
~98 000 km\u00b2<\/div>\n<\/div>\n
\n
2024<\/div>\n
\n
<\/div>\n<\/div>\n
~52 000 km\u00b2<\/div>\n<\/div>\n
\n
moyenne sur 10 ans<\/div>\n
\n
<\/div>\n<\/div>\n
~27 000 km\u00b2<\/div>\n<\/div>\n<\/div>\n

For Ottawa specifically, the practical implication is that summer “smoke season” \u2014 once mostly a peak-summer concern in late July or August \u2014 now reliably starts in early June. AQHI monitoring is no longer optional for residents with respiratory conditions, runners training for the Army Run, anyone working outdoors, or families with young children.<\/p>\n

<\/p>\n

Festival Season & What Summer Does to Ottawa<\/h2>\n

Ottawa’s summer is dominated by Canada Day, Bluesfest, the Tulip Festival aftermath, and the city’s particular ritual of swapping winter parkas for ByWard Market patios. Here’s what 2026’s forecast means for the cultural calendar.<\/p>\n

\n
\n
F\u00eate du Canada<\/div>\n
July 1 on Parliament Hill. The forecast suggests warm but variable<\/strong> conditions \u2014 bring a poncho for fireworks. Late June will be in the warm-up phase.<\/div>\n<\/div>\n
\n
Bluesfest<\/div>\n
Mid-July at LeBreton Flats. Likely lands in the la plus chaude<\/strong> of summer \u2014 bring water, hats, and check AQHI for smoke days.<\/div>\n<\/div>\n
\n
Ottawa Race Weekend<\/div>\n
Late May. Forecast suggests cool and possibly wet<\/strong> \u2014 historically good for marathon performance, less good for spectators.<\/div>\n<\/div>\n
\n
CityFolk & Jazz Fest<\/div>\n
June Jazz Fest in Confederation Park. June’s cool and wet start<\/strong> may impact early dates; later weekends should improve.<\/div>\n<\/div>\n
\n
Canal Rideau<\/div>\n
Boating season usually peaks July-August. Watch for heat-driven blue-green algae<\/strong> warnings in late July if temperatures spike.<\/div>\n<\/div>\n
\n
Piscines publiques<\/div>\n
Ottawa’s pools open mid-June and close Labour Day. Heat-loaded mid-summer means pic de demande mi-juillet<\/strong> \u2014 go early or late.<\/div>\n<\/div>\n
\n
Gatineau Park<\/div>\n
Hiking and cycling peak in July. Watch for tick season<\/strong> \u2014 Lyme disease cases in the NCR have risen sharply with warming summers.<\/div>\n<\/div>\n
\n
Beach Season<\/div>\n
Mooney’s Bay, Britannia, Petrie Island. E. coli closures<\/strong> are common after heavy rain \u2014 June’s wet pattern raises early-season risk.<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

A Practical Summer 2026 Checklist for Ottawans<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Quand<\/th>\nQuoi<\/th>\n<\/tr>\n<\/thead>\n
D\u00e9but juin<\/strong><\/td>\nTest your AC. Watch for thunderstorm warnings. Don’t trust early-June forecasts to deliver \u2014 pack layers for outdoor events.<\/td>\n<\/tr>\n
Fin juin<\/strong><\/td>\nWatch for the first sustained 30\u00b0C+ stretch. Sign up for ECCC heat alerts. Identify your nearest cooling centre.<\/td>\n<\/tr>\n
D\u00e9but-mi-juillet<\/strong><\/td>\nHeat-loaded period. Stock electrolytes. Check on elderly neighbours during 3+ day extreme heat events. Bookmark Ottawa Public Health’s heat warnings page.<\/td>\n<\/tr>\n
24-31 juillet<\/strong><\/td>\nPossible record-breaking heat per multiple forecasts. Watch AQHI for wildfire smoke compounding heat-related health risks.<\/td>\n<\/tr>\n
mi-ao\u00fbt<\/strong><\/td>\nSecond heat surge expected. Plan outdoor exercise for early morning or after 7 PM. Watch for severe-storm warnings.<\/td>\n<\/tr>\n
Fin ao\u00fbt<\/strong><\/td>\nStorm season. Watch for tropical-system remnants \u2014 derecho\/Debby playbook applies. Clean roof drains and flood-risk basements.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

The Big Picture for Ottawa<\/h2>\n

Summer 2026 in Ottawa is a high-volatility season caught between competing forces. The El Ni\u00f1o signal is the dominant driver \u2014 expected to leave central Canada cooler and more unsettled in early summer, then deliver bursts of intense heat as the Atlantic warms and the trough shifts west. Layer in the structural reality of Canada’s wildfire era and the now-routine arrival of tropical-system remnants in late August, and 2026 has the ingredients for at least one major weather event.<\/p>\n

Underneath the year-to-year noise, the trend is clear and accelerating. Ottawa’s number of 30\u00b0C+ days has tripled since the 1980s. Tropical nights are now annual. Wildfire smoke has joined heat as a dominant summer health concern. The 2018 heat wave, the 2018 tornado outbreak, the 2022 derecho, and the 2023 smoke episodes are all part of the same broader signal: Ottawa is one of the most weather-volatile capital cities in the developed world<\/strong>, and the volatility is increasing.<\/p>\n

For 2026 specifically: expect a summer where the heat peaks higher and earlier than the season average suggests, with a real chance of a memorable extreme event before September. June will test your patience. July will reward it. August will keep you honest.<\/p>\n

En r\u00e9sum\u00e9 :<\/strong> A patient June, a hot July, a volatile August. Stock the AC filter, top up the basement sump pump, sign up for cooling-centre alerts, and check the AQHI before every long run. Even a “moderate” Ottawa summer in 2026 will run roughly 1.5\u00b0C warmer than the same season ran for your parents \u2014 and the trend isn’t slowing down.<\/div>\n

<\/p>\n

\n
Sources de donn\u00e9es<\/div>\n
    \n
  1. Environment and Climate Change Canada \u2014 Historical climate data for Ottawa Macdonald-Cartier International Airport (CYOW); 2026 global mean temperature forecast.<\/li>\n
  2. The Weather Network \u2014 Canada’s 2026 Summer Sneak Peek (April 15, 2026); Drivers of Summer 2026 (April 21).<\/li>\n
  3. NOAA Climate Prediction Center \u2014 ENSO and El Ni\u00f1o emergence forecasts; April 2026 ENSO update.<\/li>\n
  4. World Meteorological Organization \u2014 Global Seasonal Climate Update (April 2026).<\/li>\n
  5. Severe Weather Europe \u2014 Updated Summer 2026 Forecast (May 2026); Super El Ni\u00f1o analysis.<\/li>\n
  6. Ottawa Public Health \u2014 Heat alerts and cooling-centre activation thresholds.<\/li>\n
  7. Natural Resources Canada \u2014 Canadian Wildland Fire Information System (2023, 2024, 2025 burn data).<\/li>\n
  8. Insurance Bureau of Canada \u2014 Damage estimates for the September 2018 tornado outbreak and May 2022 derecho.<\/li>\n
  9. Climate-data.org and Climates to Travel \u2014 Climate normals for Ottawa.<\/li>\n<\/ol>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Seasonal Forecast & Climate Summer in Ottawa 2026: A Bifurcated Season Shaped by El Ni\u00f1o A rapid switch from La Ni\u00f1a to a possibly Super El Ni\u00f1o is reorganizing the jet stream \u2014 and Ottawa sits squarely in the zone forecast to start cool and unsettled before flipping toward intense mid-summer heat. Here’s the data, […]<\/p>\n","protected":false},"author":1,"featured_media":8373,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7409],"tags":[],"class_list":["post-8366","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-weather"],"yoast_head":"\nSummer in Ottawa 2026: A Bifurcated Season Shaped by El Ni\u00f1o - Montreal Tips<\/title>\n<meta name=\"description\" content=\"Seasonal Forecast & Climate Summer in Ottawa 2026: A Bifurcated Season Shaped by El Ni\u00f1o A rapid switch from La Ni\u00f1a to a possibly Super El Ni\u00f1o is\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/montrealtips.com\/fr\/2026\/05\/13\/summer-in-ottawa-2026-a-bifurcated-season-shaped-by-el-nino\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Summer in Ottawa 2026: A Bifurcated Season Shaped by El Ni\u00f1o - 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