United States · 1991–2020 normal
Unalaska in
September.
Typical September weather in Unalaska: 12.5°C by day, 6.8°C at night, 143 mm of rain over 16.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high12.5°C
Typical low6.8°C
Rain143 mm
Wet days16.3
Comfort score 20 this month (August leads the year at 47). Daylight is calculated as 12 h 37 from latitude 53.87°. Open-water sea temperature is 9.0°C (27 km from the place centre).
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5877208
- NOAA station
- USC00502587 · DUTCH HARBOR
- Station distance
- 2.4 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.