Verdict: Excellent month
Whistler Weather in September
September hits the sweet spot in Whistler — highs around 19°C (66°F), ideal for a full day on foot. Expect showers on roughly 11 days of the month — rarely trip-ruining, worth planning around. Overall, September is one of the best months of the year to be in Whistler.
Average high
19°C / 66°F
Average low
9°C / 48°F
Rain days
~11
Precipitation
136 mm
What to pack for Whistler in September
- Layers — t-shirts under a light jacket or sweater
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Whistler: Jul (24°C / 75°F) · Coolest: Jan (2°C / 36°F) · Wettest: Jan (~22 rain days)
2°
-3°
Jan
2°
-5°
Feb
5°
-3°
Mar
8°
-1°
Apr
15°
4°
May
19°
8°
Jun
24°
12°
Jul
24°
12°
Aug
19°
9°
Sep
12°
4°
Oct
4°
-2°
Nov
2°
-4°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)