United States · 1991–2020 normal

Friday Harbor in
September.

Typical September weather in Friday Harbor: 19.7°C by day, 8.4°C at night, 24 mm of rain over 4.8 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high19.7°C
Typical low8.4°C
Rain24 mm
Wet days4.8

Comfort score 72 this month (August leads the year at 86). Daylight is calculated as 12 h 31 from latitude 48.53°. Open-water sea temperature is 12.7°C (13 km from the place centre).

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5795104
NOAA station
USW00094276 · FRIDAY HARBOR AP
Station distance
1.7 km from the place centre
Coverage
Good coverage · 23 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.