Ontario Vær Værmelding
Ontario weather: 14°C, overskyet. Time for time forecast, 14-day outlook, UV, air quality and the best time til visit.
Klima in Ontario month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | -13° | -22° | 25 mm | ★★☆☆☆ |
| februar | -9° | -20° | 37 mm | ★★☆☆☆ |
| mars | -4° | -17° | 41 mm | ★★☆☆☆ |
| april | 5° | -7° | 58 mm | ★★☆☆☆ |
| mai | 15° | 3° | 50 mm | ★★★★☆ |
| juni | 22° | 10° | 71 mm | ★★★★☆ |
| juli | 25° | 14° | 81 mm | ★★★★☆ |
| august | 23° | 12° | 80 mm | ★★★★☆ |
| september | 20° | 9° | 65 mm | ★★★★☆ |
| oktober | 11° | 3° | 69 mm | ★★★☆☆ |
| november | -0° | -5° | 52 mm | ★★☆☆☆ |
| desember | -7° | -15° | 52 mm | ★★☆☆☆ |
Klima type: Subarctic. Kilde: Open-Meteo archive (ERA5).
Beste tid å besøke Ontario
Go in juni, juli, august and september. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: februar, november and desember - expect the least comfortable mix of heat, cold or rain.
Recent extremes in Ontario
Høyest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
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 |
What til pack, what til 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 februar, november and desember - historically the least comfortable months here.
Se prognosen for Ontario etter tidsintervall
Ontario weather - more answers
Explore Ontario
Every topic we hold for this place, and the same topic for the places around it.
Vær 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 Nord-Amerika.
What is the weather like in Ontario akkurat nå?
It is currently 14°C (57°F) med overskyet. Luftfuktighet is 44% and wind is 11 km/h.
When is the best time til visit Ontario?
juni, juli, august and september offer the most comfortable conditions in Ontario, which has a subarctic climate. februar, november and desember 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 4:39 AM.
How many people live in Ontario?
Ontario has a population of approximately 15.6 million.
What is the nearest airport til Ontario?
The closest airports are Toronto Pearson International Airport (YYZ), 944 km away.
What are the top things til 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. |
|---|---|
| Værmelding and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima 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 4:39 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
