United States · 1991–2020 normal
Kapaau in
September.
Typical September weather in Kapaau: 27°C by day, 20.9°C at night, 75 mm of rain over 11.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high27°C
Typical low20.9°C
Rain75 mm
Wet days11.3
Comfort score 66 this month (February leads the year at 82). Daylight is calculated as 12 h 14 from latitude 20.23°. Open-water sea temperature is 26.9°C (14 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 26.9°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 5848308
- NOAA station
- USC00511339 · HAWI 168
- Station distance
- 3.9 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.