Vava'u weather in September 2025

Expect 27°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Vava'u in September. Check more long-term weather averages for Vava'u in September before you book your next holiday to Tonga in 2025/2026.

  • 27°C maximum daytime temperature in September in Vava'u27
    27°C max day temperature
  • 5 days with some rainfall in September in Vava'u5
    5 days with some rainfall
  • 21°C minimum night-time temperature in September in Vava'u21
    21°C min night temperature
  • 12 hours of daylight per day in September in Vava'u12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Vava'uM
    Moderate heat & humidity
  • 138 mm monthly rainfall in September in Vava'u138
    138 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in September in Vava'u11
    11 (Extreme) UV index
  • 25°C sea temperature in September in Vava'u25
    25°C sea temperature

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The September weather guide for Tonga (Vava'u) 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 Vava'u in September?

Daytime temperatures usually reach 27°C in Vava'u in September with moderate heat and humidity, falling to 21°C at night.

How warm is the sea around Vava'u in September?

The average sea temperature around Vava'u in September is 25°C.

Does it rain in Vava'u in September?

There are usually 5 days with some rain in Vava'u in September and the average monthly rainfall is 138mm.

Vava'u September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:44 18:28
Monday, 15th September 2025 06:32 18:31
Tuesday, 30th September 2025 06:19 18:33

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