Agana weather in January 2020

  • 30°C maximum daytime temperature in January in Agana30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 23 days with some rainfall in January in Agana23
    23 days with some rainfall
  • 24°C minimum night-time temperature in January in Agana24
    24°C min night temperature
  • 11 hours of daylight per day in January in Agana11
    11 hours of daylight per day
  • High heat & humidity in January in AganaH
    High heat & humidity
  • 130 mm monthly rainfall in January in Agana130
    130 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in January in Agana10
    10 (Very High) UV index
  • 28°C sea temperature in January in Agana28
    28°C sea temperature
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The January weather guide for Agana, Guam 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.

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

Guide to Agana weather in January

The average maximum daytime temperature in Agana in January is a hot 30°C (86°F) with high heat & humidity. The average night-time temperature is usually a warm 24°C (75°F). There are usually 6 hours of bright sunshine each day, which represents 50% of the 11 hours of daylight.

Expect 130mm (5.1 inches) of rainfall across the whole of January with 23 days with some rain falling. Maximum UV levels will be very high (10 UV index) at midday when the skies are clear.

The average sea temperature in and around Agana in January is 28°C (82°F).

Agana sunrise & sunset times for January 2020

Browse the sunrise & sunset times for Agana in January 2020. Select a month to view Agana sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2020 06:44 18:05
Thursday, 16th January 2020 06:48 18:13
Friday, 31st January 2020 06:48 18:21
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