United States · 1991–2020 normal
Darien in
September.
Typical September weather in Darien: 24.8°C by day, 12.9°C at night, 123 mm of rain over 7.7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high24.8°C
Typical low12.9°C
Rain123 mm
Wet days7.7
Comfort score 77 this month, the highest of the year. Daylight is calculated as 12 h 25 from latitude 41.08°. Open-water sea temperature is 21.8°C (9 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 21.8°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 4832425
- NOAA station
- USC00067970 · STAMFORD 5 N
- Station distance
- 8.3 km from the place centre
- Coverage
- Good coverage · 21 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.