Biak weather in May 2026

Expect daytime maximum temperatures of 86°F in Biak, Indonesia in May and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 20 days with some rainfall and typically 10.2 inches of rainfall in the month.

  • 86°F maximum daytime temperature in May in Biak86
    86°F max day temperature
  • 5 hours of sunshine per day
  • 20 days with some rainfall in May in Biak20
    20 days with some rainfall
  • 73°F minimum night-time temperature in May in Biak73
    73°F min night temperature
  • 12 hours of daylight per day in May in Biak12
    12 hours of daylight per day
  • Very high heat & humidity in May in BiakVH
    Very High heat & humidity
  • 10.2 inches monthly rainfall in May in Biak10.2
    10.2 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Biak11
    11+ (Extreme) UV index
  • 84°F sea temperature in May in Biak84
    84°F sea temperature

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The May weather guide for Indonesia (Biak) 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 Biak in May?

Daytime temperatures usually reach 86°F in Biak in May with very high heat and humidity, falling to 73°F at night.

How sunny is it in Biak in May?

There are normally 5 hours of bright sunshine each day in Biak in May - that's 44% of daylight hours.

How warm is the sea around Biak in May?

The average sea temperature around Biak in May is 84°F.

Does it rain in Biak in May?

There are usually 20 days with some rain in Biak in May and the average monthly rainfall is 10.2 inches.

Biak May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:51 17:55
Saturday, 16th May 2026 05:50 17:54
Sunday, 31st May 2026 05:52 17:55

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