Tanna weather in May 2025

Expect 25°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Tanna in May. Check more long-term weather averages for Tanna in May before you book your next holiday to Vanuatu in 2025/2026.

  • 25°C maximum daytime temperature in May in Tanna25
    25°C max day temperature
  • 6 hours of sunshine per day
  • 19 days with some rainfall in May in Tanna19
    19 days with some rainfall
  • 18°C minimum night-time temperature in May in Tanna18
    18°C min night temperature
  • 11 hours of daylight per day in May in Tanna11
    11 hours of daylight per day
  • Low heat & humidity in May in TannaL
    Low heat & humidity
  • 181 mm monthly rainfall in May in Tanna181
    181 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Tanna8
    8 (Very High) UV index
  • 26°C sea temperature in May in Tanna26
    26°C sea temperature

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The May 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 May?

Daytime temperatures usually reach 25°C in Tanna in May with low heat and humidity, falling to 18°C at night.

How sunny is it in Tanna in May?

There are normally 6 hours of bright sunshine each day in Tanna in May - that's 50% of daylight hours.

How warm is the sea around Tanna in May?

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

Does it rain in Tanna in May?

There are usually 19 days with some rain in Tanna in May and the average monthly rainfall is 181mm.

Tanna May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:58 17:22
Friday, 16th May 2025 06:04 17:15
Saturday, 31st May 2025 06:10 17:12

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