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.

  • 30°C maximum daytime temperature in September in Manihiki30
    30°C max day temperature
  • 5 days with some rainfall in September in Manihiki5
    5 days with some rainfall
  • 24°C minimum night-time temperature in September in Manihiki24
    24°C min night temperature
  • 12 hours of daylight per day in September in Manihiki12
    12 hours of daylight per day
  • High heat & humidity in September in ManihikiH
    High heat & humidity
  • 141 mm monthly rainfall in September in Manihiki141
    141 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Manihiki11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Manihiki28
    28°C sea temperature

More about the Manihiki

Manihiki by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for the Cook Islands

Travel Up: Current hotel special offers & deals

  • Find hotel deals & special offers for popular destinations
  • Filter hotel deals by price, board basis, star rating & more
  • Choose from over 400,000 hotels worldwide
Go to Travel Up deal >>

View all Travel Up offers

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)

Back to top

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

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^