Cook Islands · 1991–2020 normal
Avarua in
September.
Typical September weather in Avarua: 26.1°C by day, 19.5°C at night, 81 mm of rain over 7.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high26.1°C
Typical low19.5°C
Rain81 mm
Wet days7.3
Comfort score 74 this month (June leads the year at 76). Daylight is calculated as 12 h from latitude -21.21°. Open-water sea temperature is 24.4°C (14 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 24.4°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 4035715
- NOAA station
- CWM00091843 · RAROTONGA INTL
- Station distance
- 3.2 km from the place centre
- Coverage
- Good coverage · 24 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.