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Montreal Weather in August

Canada

August brings warm weather ideal for exploring Mount Royal and attending festivals though humidity rises noticeably so plan indoor activities during peak afternoon heat and stay hydrated while sightseeing.

Avg High

25°C

Avg Low

15°C

Daily Rain

3mm

Rainfall

Moderate

✅ August is one of the best months to visit Montreal!

Montreal Weather by Month

Month	High	Low	Rain
Jan	-5°C	-13°C	2.3mm
Feb	-3°C	-11°C	1.9mm
Mar	2°C	-6°C	2mm
Apr	11°C	1°C	2.5mm
May	19°C	8°C	2.5mm
Jun	24°C	13°C	2.8mm
Jul	27°C	16°C	3mm
Aug	25°C	15°C	3mm
Sep	20°C	10°C	2.7mm
Oct	13°C	4°C	2.6mm
Nov	5°C	-2°C	2.8mm
Dec	-2°C	-9°C	2.5mm

About Montreal

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