When to visit
Ontario?

Discover the best time of year, based on historical climate, temperature, and precipitation.

Ontario
State of Oregon · United States of America

The best weather in Ontario is from June, September, October.consistent weather climate

Climate score
June
93

Perfect climate

☀️Pleasant

Temperature
15–30°C
Cool nights
Feels like
13–28°C
Dry
Precipitation
30mm
Moderate rain · 4 days
Sunshine
13.1h
Partly cloudy
Humidity (%)
39%
Dry
Annual Climate Analysis
Temperature, Rain & Feels Like
Rain
Actual Temp
Feels Like
-20°-10°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Monthly Overview
Score122739728893495598892712
ClimateColdColdColdColdMildPleasantHot & dryHot & dryPleasantMildColdCold
Temperature-4–4°C-3–7°C1–13°C4–18°C10–23°C15–30°C21–37°C19–35°C14–29°C7–20°C0–8°C-3–3°C
Feels like-7–0°C-7–3°C-3–9°C1–15°C7–21°C13–28°C18–35°C17–33°C12–27°C4–17°C-4–5°C-7–0°C
Precipitation46mm
10 days
26mm
7 days
43mm
8 days
23mm
6 days
43mm
7 days
30mm
4 days
1mm
0 days
10mm
1 days
11mm
1 days
20mm
3 days
40mm
7 days
53mm
10 days
Sunshine4.6h
☀︎ 49%
7.8h
☀︎ 75%
9.2h
☀︎ 77%
11.0h
☀︎ 82%
12.1h
☀︎ 82%
13.1h
☀︎ 85%
14.0h
☀︎ 92%
12.8h
☀︎ 92%
11.1h
☀︎ 89%
9.4h
☀︎ 85%
6.5h
☀︎ 68%
3.7h
☀︎ 42%
WindW · 13 km/hW · 15 km/hW · 17 km/hNW · 20 km/hNW · 20 km/hNW · 20 km/hNW · 20 km/hNW · 18 km/hNW · 15 km/hNW · 14 km/hW · 13 km/hW · 11 km/h
Humidity (%)79%68%60%46%45%39%23%30%37%52%75%82%
Day length9.3h10.5h12.0h13.5h14.8h15.4h15.1h14.0h12.5h11.0h9.6h8.9h

Frequently asked questions

What is the best time to visit Ontario?

The best time to visit Ontario is September, October, June, May, April, with temperatures between 4 °C and 30 °C. The best month is September. September is shoulder season.

What is the weather like in Ontario?

Ontario has a climate with an overall score of 5.5/10. Annual temperatures range from -4 °C to 37 °C.

What is the hottest month in Ontario?

The hottest month in Ontario is July, with average highs of 37 °C and lows of 21 °C.

What is the rainiest month in Ontario?

The rainiest month in Ontario is December, with an average of 53 mm of precipitation.