Ontario Climat and Average Météo
Climat of Ontario: average temperatures, rainfall and seasons month by month.
Climat in Ontario month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mois | Max moyenne | Min moyenne | Précipitations | Évaluation |
|---|---|---|---|---|
| janvier | -13° | -22° | 25 mm | ★★☆☆☆ |
| février | -9° | -20° | 37 mm | ★★☆☆☆ |
| mars | -4° | -17° | 41 mm | ★★☆☆☆ |
| avril | 5° | -7° | 58 mm | ★★☆☆☆ |
| mai | 15° | 3° | 50 mm | ★★★★☆ |
| juin | 22° | 10° | 71 mm | ★★★★☆ |
| juillet | 25° | 14° | 81 mm | ★★★★☆ |
| août | 23° | 12° | 80 mm | ★★★★☆ |
| septembre | 20° | 9° | 65 mm | ★★★★☆ |
| octobre | 11° | 3° | 69 mm | ★★★☆☆ |
| novembre | -0° | -5° | 52 mm | ★★☆☆☆ |
| décembre | -7° | -15° | 52 mm | ★★☆☆☆ |
Climat type: Subarctic. Source : Open-Meteo archive (ERA5).
Recent extremes in Ontario
Élevéest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How Ontario compares avec nearby places
Annual averages, and the difference against Ontario.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Lake Superior | 425 km | 3°C | +1°C warmer | 790 mm |
| Isle Royale National Park | 429 km | 6°C | +3°C warmer | 761 mm |
| Porcupine Mountains Wilderness State Park | 589 km | 7°C | +5°C warmer | 902 mm |
Climat by city in Ontario
3 cities mapped in this atlas
Climat by state park in Ontario
1 state and provincial parks mapped in this atlas
Meilleur moment pour visiter Ontario
Go in juin, juillet, août and septembre. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: février, novembre and décembre – expect the least comfortable mix of heat, cold or rain.
What this means for Ontario
Today is much warmer than average for octobre. The forecast high of 19°C is 8.1°C above the 11°C typical for this month.
Pluie is very unlikely today – plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juin à août.
The gap between the warmest and coldest month averages 36°C.
What à pack, what à skip
- A warm mid-layer and gloves for early mornings and evenings
- Insulated outer layer, hat and boots avec grip for ice
- A packable rain shell – 2 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid février, novembre and décembre – historically the least comfortable months here.
Résumé
Ontario is a province in Canada. Ontario is a Canadian province or territory. Sa population est d’environ 15.6 million. La capitale est Toronto.
Actuellement, il fait 13°C (56°F) in Ontario avec ciel dégagé. La température ressentie est de 11°C. Aujourd’hui, les températures vont de 4°C à 19°C. La probabilité de précipitations est de 3%. Les conditions pour les visites obtiennent 9.2/10 – excellent — partez maintenant.
La meilleure période pour visiter Ontario is juin, juillet, août and septembre. Le climat est subarctic. février, novembre and décembre sont généralement les mois les moins confortables. juillet est le mois le plus chaud, avec des maximales moyennes proches de 25°C, tandis que janvier est le mois le plus froid, avec des minimales proches de -22°C.
L’aéroport principal le plus proche est Toronto Pearson International Airport (YYZ), about 944 km away. Parmi les sites à proximité, citons CN Tower and Algonquin Provincial Park.
En termes simples. Today is much warmer than average for octobre. The forecast high of 19°C is 8.1°C above the 11°C typical for this month. The best window à be outside is roughly 1 PM à 4 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Ontario today at 9.9/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Ontario
| Type | Province |
|---|---|
| Pays | Canada |
| Continent | Amérique du Nord |
| Coordonnées | 51°15′13.7″N 85°19′23.5″W (51.2538, -85.3232) |
| Capital | Toronto |
| Population | 15.600.000 |
| Area | 1.076.395 km² |
| Fuseau horaire | America/Toronto |
| Heure locale | 5:30 AM (UTC-04:00) |
| Meilleurs mois | juin, juillet, août and septembre |
| Climat | Subarctic |
Météo map for Ontario
Animated model layers. Pick a layer à load it.
Animated layers by Venty. For pin-level detail and nearby places, see the interactive map below.
Explore Ontario
Every topic we hold for this place, and the same topic for the places around it.
Climat for related places
Frequently asked questions
Where is Ontario?
Ontario is a province in Canada. Its coordinates are 51.2538, -85.3232. It lies in Amérique du Nord.
What is the weather like in Ontario maintenant?
It is currently 13°C (56°F) avec ciel dégagé. Humidité is 71% and wind is 14 km/h.
When is the best time à visit Ontario?
juin, juillet, août and septembre offer the most comfortable conditions in Ontario, which has a subarctic climate. février, novembre and décembre are usually the hardest months for outdoor plans.
What time zone is Ontario in?
Ontario observes America/Toronto (UTC-04:00). The heure locale is 5:30 AM.
How many people live in Ontario?
Ontario has a population of approximately 15.6 million.
What is the nearest airport à Ontario?
The closest airports are Toronto Pearson International Airport (YYZ), 944 km away.
What are the top things à do in Ontario?
Popular options include CN Tower and Algonquin Provincial Park.
What places are in Ontario?
Ontario covers 4 places in this atlas, including Ottawa, Toronto, Algonquin Provincial Park and Niagara Falls, Ontario.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (ca-provinces) – coordinates, hierarchy and facts. |
|---|---|
| Prévisions and observations | Open-Meteo (ECMWF and national models). |
| Qualité de l’air and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing – the block is simply not shown. |
Last updated octobre 24, 2026 at 5:30 AM heure locale. Live blocks refresh every 15 minutes; climate averages monthly.
