Canada weather in September - temperature, rain and is it a good time to visit?

September is one of the best months for a holiday in Canada.
Daytime
21°
Night
11°
☀️ Day length
12 h 47 min
Chance of rain
7%
Thunder days
1%
Humid days
33%
WEATHER THROUGH THE YEARCanada - September vs the year-2°-9°-1°-8°-4°11°19°22°13°26°16°25°15°21°11°15°-5°CHANCE OF RAIN (%)5459998871296JanFebMarAprMayJunJulAugSepOctNovDecWARMESTJul (26°)COLDESTJan (-2°)DRIESTFeb (4%)WETTESTOct (12%)world-prices.com · 2026-07-08 · ★ best months
In September, Canada averages about 21° during the day and 11° at night. It's usually fairly dry, with only about a 7% chance of rain.

Canada weather all year - average temperatures and rain

MonthDayNightChance of rain
January -2℃-9℃5%
February -1℃-8℃4%
March 4℃-4℃5%
April ★ 11℃2℃9%
May ★ 19℃9℃9%
June ★ 22℃13℃9%
July ★ 26℃16℃8%
August ★ 25℃15℃8%
September 21℃11℃7%
October ★ 15℃6℃12%
November 7℃0℃9%
December 1℃-5℃6%
★ - months most often recommended for travel

Where is it warmest in Canada in September? Weather by city

PlaceDayNight🌊 SeaChance of rain
Mississauga 23℃13℃-36%
Markham 23℃12℃-35%
Ottawa 22℃11℃-0%
Toronto 22℃14℃-0%
Quebeccity 22℃11℃-0%
Montreal 22℃13℃-0%
Gatineau 22℃11℃-0%
Vancouver 19℃12℃18℃0%
Surrey 19℃11℃18℃0%
Calgary 17℃5℃-0%
Travelling soon? Check the live 14-day weather forecast for Canada.

Canada weather - other months

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember