Tanna weather in September 2026

Expect daytime maximum temperatures of 24°C in Tanna, Vanuatu in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 125 mm of rainfall in the month.

  • 24°C maximum daytime temperature in September in Tanna24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in September in Tanna15
    15 days with some rainfall
  • 16°C minimum night-time temperature in September in Tanna16
    16°C min night temperature
  • 12 hours of daylight per day in September in Tanna12
    12 hours of daylight per day
  • Low heat & humidity in September in TannaL
    Low heat & humidity
  • 125 mm monthly rainfall in September in Tanna125
    125 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Tanna11
    11 (Extreme) UV index
  • 24°C sea temperature in September in Tanna24
    24°C sea temperature

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The September weather guide for Vanuatu (Tanna) 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)

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How hot is it in Tanna in September?

Daytime temperatures usually reach 27°C in Tanna in September with low heat and humidity, falling to 19°C at night.

How sunny is it in Tanna in September?

There are normally 7 hours of bright sunshine each day in Tanna in September - that's 59% of daylight hours.

How warm is the sea around Tanna in September?

The average sea temperature around Tanna in September is 26°C.

Does it rain in Tanna in September?

There are usually 13 days with some rain in Tanna in September and the average monthly rainfall is 122mm.

Tanna September sunrise & sunset times

Browse the sunrise and sunset times for Tanna in September 2026. Select a month to view Tanna sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 05:52 17:35
Tuesday, 15th September 2026 05:40 17:38
Wednesday, 30th September 2026 05:26 17:41

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