Guam weather live forecast

Today's maximum temperature in Guam is expected to be 28°C. Select a day from the live weather forecast for Guam (Agana) for more weather parameters.

Sunday
1st Feb
28

24

6

9
Monday
2nd Feb
27

25

2

8
Tuesday
3rd Feb
28

25

4

9
Wednesday
4th Feb
29

25

6

10
Thursday
5th Feb
29

25

6

11

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

Expect isolated thunderstorms in Guam with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 47% chance of some rain and a moderate breeze of 26 kph from the north-east.

28
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
9
UV index (Very High)
47
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
26
kph wind from NE

Guam weather for Monday 2nd February 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 87% chance of some rain and a fresh breeze of 29 kph from the east.

27
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
8
UV index (Very High)
87
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
29
kph wind from E

Guam weather for Tuesday 3rd February 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 30-40 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 22 kph from the east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
9
UV index (Very High)
86
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from E

Guam weather for Wednesday 4th February 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 66% chance of some rain and a gentle breeze of 17 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
66
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

Guam weather for Thursday 5th February 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 30-40 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 18 kph from the east.