Ontario Väder Prognos
Ontario weather: 14°C, mulet. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Ontario weather in maj
A good month och visit Ontario.
maj runs 6°C warmer than the annual average in Ontario.
Compare med april.
Väder map for Ontario
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Klimat in Ontario month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | -13° | -22° | 25 mm | ★★☆☆☆ |
| februari | -9° | -20° | 37 mm | ★★☆☆☆ |
| mars | -4° | -17° | 41 mm | ★★☆☆☆ |
| april | 5° | -7° | 58 mm | ★★☆☆☆ |
| maj | 15° | 3° | 50 mm | ★★★★☆ |
| juni | 22° | 10° | 71 mm | ★★★★☆ |
| juli | 25° | 14° | 81 mm | ★★★★☆ |
| augusti | 23° | 12° | 80 mm | ★★★★☆ |
| september | 20° | 9° | 65 mm | ★★★★☆ |
| oktober | 11° | 3° | 69 mm | ★★★☆☆ |
| november | -0° | -5° | 52 mm | ★★☆☆☆ |
| december | -7° | -15° | 52 mm | ★★☆☆☆ |
Klimat type: Subarctic. Källa: Open-Meteo archive (ERA5).
Bästa tiden att besöka Ontario
Go in juni, juli, augusti and september. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: februari, november and december - expect the least comfortable mix of heat, cold or rain.
What och pack, what och skip
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid februari, november and december - historically the least comfortable months here.
How Ontario compares med 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 |
Se prognosen för Ontario per tidsintervall
Ontario weather - more answers
Explore Ontario
Every topic we hold for this place, and the same topic for the places around it.
Väder for related places
Frequently asked questions
Where is Ontario?
Ontario is a province in Kanada. Its coordinates are 51.2538, -85.3232. It lies in Nordamerika.
What is the weather like in Ontario just nu?
It is currently 14°C (57°F) med mulet. Luftfuktighet is 44% and wind is 11 km/h.
When is the best time och visit Ontario?
juni, juli, augusti and september offer the most comfortable conditions in Ontario, which has a subarctic climate. februari, november and december are usually the hardest months for outdoor plans.
What time zone is Ontario in?
Ontario observes America/Toronto (UTC-04:00). The local time is 3:25 AM.
How many people live in Ontario?
Ontario has a population of approximately 15.6 million.
What is the nearest airport och Ontario?
The closest airports are Toronto Pearson International Airport (YYZ), 944 km away.
What are the top things och 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. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat 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 oktober 1, 2026 at 3:25 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
