The temperatures in Squamish in September are usually low and can range between 10°C and 16°C.
You can expect rain for roughly half of the month of September in Squamish. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Squamish in September 2025.
If you’re planning to visit Squamish in the near future, we highly recommend that you review the 14 day weather forecast for Squamish before you arrive.
Temperatures
16° / 10°
Rainy Days
8
Snowy Days
0
Dry Days
22
Rainfall
226
mm
Sun Hours
6.7
Hrs
