Guam weather live forecast

Today's maximum temperature in Guam is expected to be 30°C. Select a day from the live weather forecast for Guam (Agana) for more weather parameters.

Sunday
1st Mar
30

25

7

11
Monday
2nd Mar
29

25

6

11
Tuesday
3rd Mar
29

26

6

11
Wednesday
4th Mar
30

26

6

11
Thursday
5th Mar
30

26

6

11

5-day weather forecast updated at 04:00 on Sunday 1st March 2026 GMT

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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 Sunday 1st March 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 51% chance of some rain and a moderate breeze of 20 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
51
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
20
kph wind from E

Guam weather for Monday 2nd March 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 57% chance of some rain and a gentle breeze of 18 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
57
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from E

Guam weather for Tuesday 3rd March 2026

Expect broken clouds in Guam with a maximum temperature of 29°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 16 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

Guam weather for Wednesday 4th March 2026

Expect broken clouds in Guam with a maximum temperature of 30°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 16 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

Guam weather for Thursday 5th March 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 19 kph from the east.