Phnom Penh weather in May 2025

Expect 34°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Phnom Penh in May. Check more long-term weather averages for Phnom Penh in May before you book your next holiday to Cambodia in 2025/2026.

  • 34°C maximum daytime temperature in May in Phnom Penh34
    34°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Phnom Penh15
    15 days with some rainfall
  • 25°C minimum night-time temperature in May in Phnom Penh25
    25°C min night temperature
  • 13 hours of daylight per day in May in Phnom Penh13
    13 hours of daylight per day
  • Extreme heat & humidity in May in Phnom PenhE
    Extreme heat & humidity
  • 166 mm monthly rainfall in May in Phnom Penh166
    166 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Phnom Penh11
    11+ (Extreme) UV index

More about Phnom Penh

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The May weather guide for Cambodia (Phnom Penh) 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 Cambodia

How hot is it in Phnom Penh in May?

Daytime temperatures usually reach 34°C in Phnom Penh in May with extreme heat and humidity, falling to 25°C at night.

How sunny is it in Phnom Penh in May?

There are normally 7 hours of bright sunshine each day in Phnom Penh in May - that's 54% of daylight hours.

Does it rain in Phnom Penh in May?

There are usually 15 days with some rain in Phnom Penh in May and the average monthly rainfall is 166mm.

Phnom Penh May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:41 18:14
Friday, 16th May 2025 05:37 18:17
Saturday, 31st May 2025 05:35 18:21

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