United States · 1991–2020 normal

Lake Forest in
September.

Typical September weather in Lake Forest: 31.7°C by day, 24.6°C at night, 237 mm of rain over 16.5 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high31.7°C
Typical low24.6°C
Rain237 mm
Wet days16.5

Comfort score 17 this month (January leads the year at 94). Daylight is calculated as 12 h 16 from latitude 25.98°. Open-water sea temperature is 29.3°C (13 km from the place centre).

Event window

Warm sea in September

The nearest open-water NOAA OISST 1991–2020 cell averages 29.3°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 4161228
NOAA station
USC00086315 · N MIAMI BEACH #2
Station distance
4.5 km from the place centre
Coverage
Good coverage · 20 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.