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Manihiki weather in September 2025
Expect 30°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Manihiki in September. Check more long-term weather averages for Manihiki in September before you book your next holiday to Cook Islands in 2025/2026.
- 3030°C max day temperature
- 55 days with some rainfall
- 2424°C min night temperature
- 1212 hours of daylight per day
- HHigh heat & humidity
- 141141 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2828°C sea temperature
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The September weather guide for Cook Islands (Manihiki) 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.
Metric (°C / mm) | Imperial (°F / inches)
How hot is it in Manihiki in September?
Daytime temperatures usually reach 30°C in Manihiki in September with high heat and humidity, falling to 24°C at night.
How warm is the sea around Manihiki in September?
The average sea temperature around Manihiki in September is 28°C.
Does it rain in Manihiki in September?
There are usually 5 days with some rain in Manihiki in September and the average monthly rainfall is 141mm.
Manihiki September sunrise & sunset times
Browse the sunrise and sunset times for Manihiki in September 2025. Select a month to view Manihiki sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 06:46 | 18:41 |
Monday, 15th September 2025 | 06:38 | 18:40 |
Tuesday, 30th September 2025 | 06:28 | 18:40 |
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