Ontario 天気 予報
Ontario weather: 13°C, 晴れ. 時間別 forecast, 14-day outlook, UV, air quality and the best timeからvisit.
Ontario weather in 4月
One of the harder months here - go in、a plan.
4月 runs 3°C cooler than the annual average in Ontario.
天気 map for Ontario
Animated model layers. Pick a layerからload it.
Animated layers by 風y. For pin-level detail and nearby places, see the interactive map below.
気候 in Ontario month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 1月 | -13° | -22° | 25 mm | ★★☆☆☆ |
| 2月 | -9° | -20° | 37 mm | ★★☆☆☆ |
| 3月 | -4° | -17° | 41 mm | ★★☆☆☆ |
| 4月 | 5° | -7° | 58 mm | ★★☆☆☆ |
| 5月 | 15° | 3° | 50 mm | ★★★★☆ |
| 6月 | 22° | 10° | 71 mm | ★★★★☆ |
| 7月 | 25° | 14° | 81 mm | ★★★★☆ |
| 8月 | 23° | 12° | 80 mm | ★★★★☆ |
| 9月 | 20° | 9° | 65 mm | ★★★★☆ |
| 10月 | 11° | 3° | 69 mm | ★★★☆☆ |
| 11月 | -0° | -5° | 52 mm | ★★☆☆☆ |
| 12月 | -7° | -15° | 52 mm | ★★☆☆☆ |
気候 type: Subarctic. 出典： Open-Meteo archive (ERA5).
訪問に最適な時期 Ontario
Go in 6月, 7月, 8月 and 9月. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: 2月, 11月 and 12月 - expect the least comfortable mix of heat, cold or rain.
Whatからpack, whatからskip
- A warm mid-layer and gloves for early mornings and evenings
- Insulated outer layer, hat and boots、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 2月, 11月 and 12月 - historically the least comfortable months here.
How Ontario compares、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 |
時間帯別のOntario 予報を見る
Ontario weather - more answers
Explore Ontario
Every topic we hold for this place, and the same topic for the places around it.
天気 for related places
Frequently asked questions
Where is Ontario?
Ontario is a province in カナダ. Its coordinates are 51.2538, -85.3232. It lies in 北アメリカ.
What is the weather like in Ontario現在?
It is currently 13°C (56°F)、晴れ. 湿度 is 71% and wind is 14 km/h.
When is the best timeからvisit Ontario?
6月, 7月, 8月 and 9月 offer the most comfortable conditions in Ontario, which has a subarctic climate. 2月, 11月 and 12月 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 4:08 PM.
How many people live in Ontario?
Ontario has a population of approximately 15.6 million.
What is the nearest airportからOntario?
The closest airports are Toronto Pearson International Airport (YYZ), 944 km away.
What are the top thingsから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. |
|---|---|
| 予報 and observations | Open-Meteo (ECMWF and national models). |
| 大気質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 気候 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 10月 24, 2026 at 4:08 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
