Agana weather in May 2025

Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Agana in May. Check more long-term weather averages for Agana in May before you book your next holiday to Guam in 2025/2026.

  • 31°C maximum daytime temperature in May in Agana31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 20 days with some rainfall in May in Agana20
    20 days with some rainfall
  • 25°C minimum night-time temperature in May in Agana25
    25°C min night temperature
  • 13 hours of daylight per day in May in Agana13
    13 hours of daylight per day
  • Very high heat & humidity in May in AganaVH
    Very High heat & humidity
  • 142 mm monthly rainfall in May in Agana142
    142 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Agana11
    11+ (Extreme) UV index
  • 28°C sea temperature in May in Agana28
    28°C sea temperature

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The May weather guide for Guam, represented by Agana, (Agana) 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 Agana in May?

Daytime temperatures usually reach 31°C in Agana in May with very high heat and humidity, falling to 25°C at night.

How sunny is it in Agana in May?

There are normally 7 hours of bright sunshine each day in Agana in May - that's 56% of daylight hours.

How warm is the sea around Agana in May?

The average sea temperature around Agana in May is 28°C.

Does it rain in Agana in May?

There are usually 20 days with some rain in Agana in May and the average monthly rainfall is 142mm.

What is the chance of a typhoon in Agana in May?

On average less than 1 day in May in Agana is likely to be affected by the passage of one or more tropical storms.

Agana May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:00 18:37
Friday, 16th May 2025 05:55 18:40
Saturday, 31st May 2025 05:53 18:45

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