Hagåtña weather in December

December in Hagåtña: hot, rainy, with clean air — a great time to visit.

#5 of 12 months in Hagåtña · #186 of 604 destinations to visit in December · comfort 78/100 (tier B)

Updated June 2026 · climate normals from ERA5 reanalysis

Hagåtña climate normals — December

Daytime high28°C / 83°F🥵 hot
Nighttime low27°C / 80°F
Feels like (high)30°C / 86°F
Rainfall98 mm / 3.9 in🌧 rainy
Rainy days18 days
Humidity82%💦 very humid
Dew point24°C / 75°F
Sunshine10.4 h/day
Daylight11.3 h
Wind35 km/h / 22 mph
Air quality (US AQI)39🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Where is Hagåtña?

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Hagåtña in December — FAQ

Is December a good time to visit Hagåtña?
December in Hagåtña: hot, rainy, with clean air — a great time to visit. It ranks #5 of 12 months for Hagåtña on SeasonMap's comfort score (78/100).
What is the weather like in Hagåtña in December?
In December, Hagåtña averages a daily high of 28.3°C and a low of 26.6°C, with about 97.8 mm of rain over roughly 18 rainy days.
What is the air quality in Hagåtña in December?
Hagåtña has a mean US Air Quality Index of about 39 in December.

Other months in Hagåtña

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