Guam weather live forecast

Today's maximum temperature in Guam is expected to be 29°C. Select a day from the live weather forecast for Guam (Agana) for more weather parameters.

Monday
20th Apr
29

25

5

11
Tuesday
21st Apr
28

25

6

11
Wednesday
22nd Apr
29

25

7

11
Thursday
23rd Apr
29

25

8

11
Friday
24th Apr
29

26

5

11

5-day weather forecast updated at 04:00 on Sunday 19th April 2026 GMT

More about Guam

Guam by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Guam

The 5-day weather forecast for Guam, represented by Agana, (Agana) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Guam weather forecast by day

Below are the detailed weather forecasts for Guam for the next 5 days. The forecasts shown are for Agana and may not represent the whole of Guam. Browse more destinations in Guam to view more weather forecasts.

Guam weather for Monday 20th April 2026

Expect broken clouds in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-east.

29
°C maximum temperature
25
°C minimum temperature
broken clouds
5
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
5
kph wind from NE

Guam weather for Tuesday 21st April 2026

Expect broken clouds in Guam with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-east.

28
°C maximum temperature
25
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from NE

Guam weather for Wednesday 22nd April 2026

Expect broken clouds in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-east.

29
°C maximum temperature
25
°C minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from NE

Guam weather for Thursday 23rd April 2026

Expect scattered clouds in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the east.