Surabaja weather in May 2025

Expect 32°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Surabaja in May. Check more long-term weather averages for Surabaja in May before you book your next holiday to Indonesia in 2025/2026.

  • 32°C maximum daytime temperature in May in Surabaja32
    32°C max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in May in Surabaja7
    7 days with some rainfall
  • 25°C minimum night-time temperature in May in Surabaja25
    25°C min night temperature
  • 12 hours of daylight per day in May in Surabaja12
    12 hours of daylight per day
  • Very high heat & humidity in May in SurabajaVH
    Very High heat & humidity
  • 122 mm monthly rainfall in May in Surabaja122
    122 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in May in Surabaja11
    11 (Extreme) UV index
  • 29°C sea temperature in May in Surabaja29
    29°C sea temperature

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The May weather guide for Indonesia (Surabaja) 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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More about Indonesia

How hot is it in Surabaja in May?

Daytime temperatures usually reach 32°C in Surabaja in May with very high heat and humidity, falling to 25°C at night.

How sunny is it in Surabaja in May?

There are normally 9 hours of bright sunshine each day in Surabaja in May - that's 76% of daylight hours.

How warm is the sea around Surabaja in May?

The average sea temperature around Surabaja in May is 29°C.

Does it rain in Surabaja in May?

There are usually 7 days with some rain in Surabaja in May and the average monthly rainfall is 122mm.

Surabaja May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:31 17:22
Friday, 16th May 2025 05:32 17:19
Saturday, 31st May 2025 05:35 17:19

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