guam

Guam Climate

Unincorporated territories of the United States

Trek Zone

When Is the Best Time To Visit Guam?

The answer to the question of what is the best month to visit Guam depends on what you are interested in doing during your stay. Here you can see an overview of each month and its typical weather conditions.

Climate of Guam

Guma is located in a humid equatorial climate zone tempered by the northeastern stripes. The weather is characterized by high temperatures ranging from 25°C - 32°C and humidity levels of up to 70%. Water temperature also remains consistently high at around 28°C. Precipitation varies and oscillates between 2000 mm - 3000 mm per year.

On the island we can distinguish between the dry and rainy seasons.

The rainy season covers the time from July to December. The frequency and intensity of rainfall and thunderstorms increases, and it is also hotter and more humid, although at the same time there is no shortage of sunny and bright days.

The dry season lasts from January to June, bringing the most favorable weather. Slightly cooler and sunny days attract tourists, and the precipitation that occurs in no way impedes leisure activities.

Hagåtña

Tuesday 8 Apr
Update 2025-04-07 14:32 CET. Powered by Visual Crossing Weather.

clear-day
86°F
Humidity
73%
Cloud cover
9%
Wind speed
12.6 mph
Chance of rain
10%
Hagåtña

Wednesday 9 Apr
Update 2025-04-07 14:32 CET. Powered by Visual Crossing Weather.

clear-day
86°F
Humidity
74%
Cloud cover
13%
Wind speed
9.4 mph
Chance of rain
10%
Hagåtña

Thursday 10 Apr
Update 2025-04-07 14:32 CET. Powered by Visual Crossing Weather.

partly-cloudy-day
85°F
Humidity
73%
Cloud cover
81%
Wind speed
13 mph
Chance of rain
26%
Hagåtña

Friday 11 Apr
Update 2025-04-07 14:32 CET. Powered by Visual Crossing Weather.

partly-cloudy-day
86°F
Humidity
76%
Cloud cover
60%
Wind speed
14.8 mph
Chance of rain
32%
Hagåtña

Saturday 12 Apr
Update 2025-04-07 14:32 CET. Powered by Visual Crossing Weather.

clear-day
86°F
Humidity
77%
Cloud cover
13%
Wind speed
15.4 mph
Chance of rain
32%

Climate and Average Weather in Guam

General weather conditions each month by city.

  • Hagåtña
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Average temperature (°F)
Average rainfall (in)
RAIN - Days with precipitation
DAY - Average length of day
SUN - Sunshine hours per day (cloudless weather)

Weather Map

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January
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March
April
May
June
July
August
September
October
November
December
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Hagåtña

The icons next to the month name indicate the convenience of the date for visiting the selected area/territory/ country. They are only a suggestion and should not be used as the final criterion for selecting your travel date. The season is defined as the time period with the weather favorable for sightseeing (or sunbathing - small island countries) for the average tourist. For countries with a large geographical range, the most touristic places were included.

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