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Cook Islands weather in September 2021
Get the latest coronavirus (Covid-19) updates for the Cook Islands with current travel advice and statistics on new cases per 100,000 and vaccine.
Below are average maximum temperatures at popular destinations in the Cook Islands in September. Select a destination to see more weather parameters.
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The September weather guide for Cook Islands shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How hot is it in the Cook Islands in September?
Daytime temperatures usually reach 26°C in Avarua, Cook Islands in September with low heat and humidity, falling to 19°C at night.
How warm is the sea around the Cook Islands in September?
The average sea temperature around Avarua, Cook Islands in September is 24°C.
Does it rain in the Cook Islands in September?
There are usually 5 days with some rain in Avarua, Cook Islands in September and the average monthly rainfall is 132mm.
Metric (°C / mm) | Imperial (°F / inches)
Cook Islands sunrise & sunset times for September 2021
Browse the sunrise and sunset times for Cook Islands in September 2021. Select a month to view Cook Islands sunrise & sunset times for the next 12 months. The Cook Islands sunrise and sunset times shown below are for Avarua.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st September 2021||06:48||18:30|
|Wednesday, 15th September 2021||06:35||18:34|
|Thursday, 30th September 2021||06:21||18:37|
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