Guam weather in December 2024

Expect 30°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Guam in December. Check more long-term weather averages for Guam in December before you book your next holiday to Guam in 2024/2025.

  • 30°C maximum daytime temperature in December in Guam (Agana)30
    30°C max day temperature
  • 5 hours of sunshine per day
  • 23 days with some rainfall in December in Guam (Agana)23
    23 days with some rainfall
  • 24°C minimum night-time temperature in December in Guam (Agana)24
    24°C min night temperature
  • 11 hours of daylight per day in December in Guam (Agana)11
    11 hours of daylight per day
  • High heat & humidity in December in Guam (Agana)H
    High heat & humidity
  • 150 mm monthly rainfall in December in Guam (Agana)150
    150 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in December in Guam (Agana)9
    9 (Very High) UV index
  • 28°C sea temperature in December in Guam (Agana)28
    28°C sea temperature

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The December 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 Guam in December?

Daytime temperatures usually reach 30°C in Agana, Guam in December with high heat and humidity, falling to 24°C at night.

How sunny is it in Guam in December?

There are normally 5 hours of bright sunshine each day in Agana, Guam in December - that's 41% of daylight hours.

How warm is the sea around Guam in December?

The average sea temperature around Agana, Guam in December is 28°C.

Does it rain in Guam in December?

There are usually 23 days with some rain in Agana, Guam in December and the average monthly rainfall is 150mm.

What is the chance of a typhoon in Guam in December?

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

Guam December sunrise & sunset times

Browse the sunrise and sunset times for Guam in December 2024. Select a month to view Guam sunrise and sunset times for the next 12 months. The Guam sunrise and sunset times shown below are for Agana.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st December 2024 06:28 17:52
Monday, 16th December 2024 06:37 17:57
Tuesday, 31st December 2024 06:44 18:04

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