United States · 1991–2020 normal
Portland in
September.
Typical September weather in Portland: 32.2°C by day, 23.1°C at night, 136 mm of rain over 8.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high32.2°C
Typical low23.1°C
Rain136 mm
Wet days8.1
Comfort score 39 this month (March leads the year at 95). Daylight is calculated as 12 h 17 from latitude 27.88°. Open-water sea temperature is 29.1°C (34 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 29.1°C in September. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4720131
- NOAA station
- USC00412011 · CORPUS CHRISTI NWS
- Station distance
- 20.9 km from the place centre
- Coverage
- Good coverage · 16 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.