guam

Guam Travel Weather

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.

Tourist Season in Guam

Guam can be visited year-round due to its consistent and high air and water temperatures. January through May has the best weather for sightseeing, beachcombing, snorkeling, water sports and hiking. Sunny and relatively dry days encourage relaxation.

In June and December you can also count on favorable aura, it's warm and the rainfall that occurs is not yet oppressive. The rainy season (from July to November) is considered the off-season, traveling during this time you have to reckon with more intense rainfall, which can make it a bit difficult to relax.

Tourists are attracted not only by the weather, but also by the celebration of local holidays. In July, Liberation Day is celebrated lavishly, full of carnival fun and fireworks. In October, Christopher Columbus Day (Columbus Day) is celebrated.

Tourist season month by month. Legend

Tourist season - time period with sightseeing-friendly weather (or sunbathing in the case of small island countries) for the average tourist. For countries with a large geographical spread, the most visited places were taken into account and the data were averaged. For selected countries, seasonal holidays were also taken into account, as long as they significantly affect the tourist traffic in this period.

The best time to travel, you can count on very good weather.

A good time to travel, however, sometimes there can be some weather conditions that make the visit a bit difficult.

Travel possible, but it is not the best time. The weather at this time can be very unpredictable, with a tendency to be bad.

Travel is not recommended, the weather at this time can make sightseeing/resting very difficult or even impossible.

JanFebMarAprMayJunJulAugSepOctNovDec

Average temperatures throughout a year for Hagåtña (°F)

JanFebMarAprMayJunJulAugSepOctNovDec
  • Typhoons are not a common occurrence, but between July and November, the possibility of one should be expected.

Hagåtña

Wednesday 4 Jun
Update 2025-06-03 16:19 CET. Powered by Visual Crossing Weather.
rain
83°F
Humidity
82%
Cloud cover
95%
Wind speed
11.4 mph
Chance of rain
77%

Hagåtña

Thursday 5 Jun
Update 2025-06-03 16:19 CET. Powered by Visual Crossing Weather.
rain
86°F
Humidity
76%
Cloud cover
98%
Wind speed
12.1 mph
Chance of rain
84%

Hagåtña

Friday 6 Jun
Update 2025-06-03 16:19 CET. Powered by Visual Crossing Weather.
rain
84°F
Humidity
78%
Cloud cover
85%
Wind speed
20.6 mph
Chance of rain
87%

Hagåtña

Saturday 7 Jun
Update 2025-06-03 16:19 CET. Powered by Visual Crossing Weather.
rain
80°F
Humidity
85%
Cloud cover
100%
Wind speed
20.4 mph
Chance of rain
77%

Hagåtña

Sunday 8 Jun
Update 2025-06-03 16:19 CET. Powered by Visual Crossing Weather.
rain
85°F
Humidity
76%
Cloud cover
85%
Wind speed
11.9 mph
Chance of rain
48%

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
Sea
82°
Sea
82°
Sea
82°
Sea
82°
Sea
84°
Sea
84°
Sea
84°
Sea
84°
Sea
84°
Sea
84°
Sea
84°
Sea
82°
Rain
23 Days
Rain
19 Days
Rain
20 Days
Rain
19 Days
Rain
20 Days
Rain
17 Days
Rain
19 Days
Rain
20 Days
Rain
19 Days
Rain
22 Days
Rain
22 Days
Rain
23 Days
Day
11h
Day
12h
Day
12h
Day
12h
Day
13h
Day
13h
Day
13h
Day
13h
Day
12h
Day
12h
Day
12h
Day
11h
Sun
6h
Sun
6h
Sun
7h
Sun
7h
Sun
7h
Sun
7h
Sun
5h
Sun
5h
Sun
5h
Sun
4h
Sun
5h
Sun
5h
Average temperature (°F)
Average rainfall (in)
RAIN - Days with precipitation
DAY - Average length of day
SUN - Sunshine hours per day (cloudless weather)

Weather Map

Select month
January
February
March
April
May
June
July
August
September
October
November
December
Switch places
Hagåtña
Hagåtña
88 °F
6.26 in
84 °F

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.

Where to next? Try the destination finder and find a place or country worth visiting