Biak weather in May 2026

Expect daytime maximum temperatures of 30°C 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 258 mm of rainfall in the month.

  • 30°C maximum daytime temperature in May in Biak30
    30°C max day temperature
  • 5 hours of sunshine per day
  • 20 days with some rainfall in May in Biak20
    20 days with some rainfall
  • 23°C minimum night-time temperature in May in Biak23
    23°C 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
  • 258 mm monthly rainfall in May in Biak258
    258 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Biak11
    11+ (Extreme) UV index
  • 29°C sea temperature in May in Biak29
    29°C sea temperature

More about Biak

Biak by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Indonesia

Radisson Hotels: up to 25% off prepaid rates

  • Save up to 25% on hotel stays when you book advance
  • Radisson Rewards members get extra 10% off hotels
  • Book hotels in Europe, Middle East, Africa, Asia & Pacific
Show discount codeShow discount code ******AID
Redeem Radisson Hotels discount code >>

View all Radisson Hotels offers

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 / mm)  |  Imperial (°F / inches)

Back to top

More about Indonesia

How hot is it in Biak in May?

Daytime temperatures usually reach 30°C in Biak in May with very high heat and humidity, falling to 23°C 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 29°C.

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 258mm.

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

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^