Weather & climate · Ottawa

Best Time to Visit Canada

July to August

The best time to visit Canada is July to August, when daytime highs in Ottawa are around 25–26°C. June and September are also a good time to go. July is the warmest month (26°C by day), January the coldest (-16°C at night), and June the wettest with about 104 mm of rain.

26°C

Warmest: July

-16°C

Coldest nights: January

979 mm

Rain per year

104 mm

Wettest: June

Canada weather by month

Jan-6°C-16°C61 mm
Feb-5°C-16°C55 mm
Mar2°C-9°C64 mm
Apr11°C-1°C85 mm
May19°C7°C85 mm
Jun23°C12°C104 mm
Jul26°C15°C98 mm
Aug25°C14°C88 mm
Sep21°C10°C87 mm
Oct13°C3°C99 mm
Nov5°C-3°C73 mm
Dec-3°C-11°C80 mm

Best time Good Less ideal

Average high Average low Rain (mm per month)

Month	High	Low	Rain	Humidity	Cloud cover	Verdict
January	-6°C	-16°C	61 mm	95%	70%	Cold
February	-5°C	-16°C	55 mm	94%	67%	Cold
March	2°C	-9°C	64 mm	87%	64%	Cold
April	11°C	-1°C	85 mm	78%	65%	Fair
May	19°C	7°C	85 mm	77%	64%	Fair
June	23°C	12°C	104 mm	79%	61%	Good
July	26°C	15°C	98 mm	79%	56%	Best time
August	25°C	14°C	88 mm	78%	56%	Best time
September	21°C	10°C	87 mm	78%	54%	Good
October	13°C	3°C	99 mm	81%	68%	Fair
November	5°C	-3°C	73 mm	85%	72%	Cold
December	-3°C	-11°C	80 mm	92%	76%	Cold

Data: NASA POWER (Prediction Of Worldwide Energy Resources) — 25-year climate averages 2001–2025, public domain, for the area around Ottawa (45.42, -75.7). Satellite and model averages — local weather stations can differ by 1–2 °C, and mountains or coasts elsewhere in Canada have their own climate.

Frequently asked questions

When is the best time to visit Canada?

July to August. The best time to visit Canada is July to August, when daytime highs in Ottawa are around 25–26°C. June and September are also a good time to go. July is the warmest month (26°C by day), January the coldest (-16°C at night), and June the wettest with about 104 mm of rain.

What is the hottest month in Canada?

July, with average highs of 26°C in Ottawa.

What is the coldest month in Canada?

January, when nights drop to about -16°C and days reach -6°C.

What is the rainiest month in Canada?

June with about 104 mm; February is the driest (55 mm).

When should I avoid visiting Canada?

December is the least comfortable month on average: -3°C by day and 80 mm of rain.

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