ClimateExplore the planning map
Climate · Aitutaki

Aitutaki in September

Warm and damp, as the days lengthen.

Typical weather, averaged over 30 years

September in Aitutaki is warm, around 76°F through the day and night. Rain falls on about three days a week, more often as the month goes on, and the days lengthen by 23 minutes from the first week to the last.September in Aitutaki is warm, around 24°C through the day and night. Rain falls on about three days a week, more often as the month goes on, and the days lengthen by 23 minutes from the first week to the last.

Typical
76°F24°Caverage
Wet days
3a week · 44% of days
Daylight
12h 02mon average

Is September a good time to visit Aitutaki?

Yes. September is one of Aitutaki's best months (June to September).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Around 76°F in September, against 76°F to 80°F through the year.Around 24°C in September, against 24°C to 27°C through the year.

Chance of a wet day

44% of days in September, against 37% to 81% through the year.

Cloud cover

51% cover in September, against 47% to 78% through the year.

Daylight

12h 02m in September, against 11h 01m to 13h 15m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August76°24°3 wet days a weekRain on about three days a week.
  2. September76°24°3 wet days a weekRain on about three days a week.
  3. October76°24°3 wet days a weekRain on about three days a week.

Where Aitutaki sits, in September

Pacific/Rarotonga
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:36 AMsets 6:33 PM
Above the sea
10 mlow-lying
Latitude
18.9°Ssouthern hemisphere
Nearest of ours
Avarua264 km south

The land around Aitutaki, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Cook Islands in September

typical · wet days
See September on the planning mapThe whole year in Aitutaki

Typical weather, averaged over 30 years (1995–2024). Aitutaki sits on a grid square that is mostly sea, where the data hold only a daily average, so the page shows one typical temperature, not a high and a low. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.