ClimateAverages

Bellingham Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
September daytime high
20.0°C
September overnight low
9.4°C
September average
14.7°C

In September, Bellingham typically sees daytime highs of 20.0°C and overnight lows around 9.4°C. Compared to the annual average high of 14.3°C, September runs +5.7°C.

vs. annual avg high
+5.7°C
Rank among 12 months
#3 warmest
Hottest year overall
2014

Where September ranks in Bellingham

JanFebMarAprMayJunJulAugSep20°OctNovDec

FAQ

What is the average temperature in Bellingham in September?

September in Bellingham averages a daytime high of 20.0°C and an overnight low of 9.4°C.

Is September warm or cold in Bellingham?

September runs +5.7°C compared to Bellingham's annual average high of 14.3°C, ranking #3 of 12 months by warmth.

What should I pack for Bellingham in September?

Plan for daytime highs near 20.0°C and cooler evenings around 9.4°C.

Other months for Bellingham

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

SeattleVancouverSpokaneTacomaBellevueKentEverettRentonFederal WaySpokane ValleyYakimaKirkland