Ontario Météo Prévisions
Ontario weather: 13°C, ciel dégagé. Par heure forecast, 14-day outlook, UV, air quality and the best time à visit.
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).
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.
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 |
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.
Voir les prévisions de Ontario par période
Ontario weather – more answers
Explore Ontario
Every topic we hold for this place, and the same topic for the places around it.
Météo 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 11:39 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 11:39 AM heure locale. Live blocks refresh every 15 minutes; climate averages monthly.
