Guam Weather in December

Check the Weather in Guam in December before you book your next holiday. This gives the best indication of the weather in December and includes figures for temperature, sunshine and rainfall. The Guam december weather guide shown below is for Agana.

  • 30°C maximum daytime temperature in December in Guam (Agana)30
    30°C max day temperature
  • 5 hours of sunshine per day (41% of daylight hours) in December in Guam5
    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

Metric (°C / mm)  |  Imperial (°F / inches)

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Expires at 23:59 on Monday 1st June 2015

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