United States · 1991–2020 normal

Portland in
September.

Typical September weather in Portland: 21.4°C by day, 11.3°C at night, 86 mm of rain over 7.7 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high21.4°C
Typical low11.3°C
Rain86 mm
Wet days7.7

Comfort score 73 this month (June leads the year at 79). Daylight is calculated as 12 h 27 from latitude 43.77°.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5267820
NOAA station
USC00471280 · CASHTON
Station distance
7 km from the place centre
Coverage
Good coverage · 18 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.