Tanna weather in September 2025

Expect 75°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Tanna in September. Check more long-term weather averages for Tanna in September before you book your next holiday to Vanuatu in 2025/2026.

  • 75°F maximum daytime temperature in September in Tanna75
    75°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in September in Tanna15
    15 days with some rainfall
  • 61°F minimum night-time temperature in September in Tanna61
    61°F 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
  • 4.9 inches monthly rainfall in September in Tanna4.9
    4.9 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Tanna11
    11 (Extreme) UV index
  • 75°F sea temperature in September in Tanna75
    75°F 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)  |  Imperial (°F)

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How hot is it in Tanna in September?

Daytime temperatures usually reach 75°F in Tanna in September, falling to 61°F 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 55% of daylight hours.

How warm is the sea around Tanna in September?

The average sea temperature around Tanna in September is 75°F.

Does it rain in Tanna in September?

There are usually 15 days with some rain in Tanna in September and the average monthly rainfall is 4.9 inches.

Tanna September sunrise & sunset times

Browse the sunrise and sunset times for Tanna in September 2025. Select a month to view Tanna sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:52 17:35
Monday, 15th September 2025 05:39 17:38
Tuesday, 30th September 2025 05:26 17:41

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