United States · 1991–2020 normal
Iselin in
September.
Typical September weather in Iselin: 25.4°C by day, 13.7°C at night, 134 mm of rain over 7.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high25.4°C
Typical low13.7°C
Rain134 mm
Wet days7.2
Comfort score 75 this month (May leads the year at 75). Daylight is calculated as 12 h 25 from latitude 40.58°. Open-water sea temperature is 21.4°C (38 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 21.4°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 5099738
- NOAA station
- USC00287079 · PLAINFIELD
- Station distance
- 7.5 km from the place centre
- Coverage
- Good coverage · 17 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.