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.

Saturday
2nd May
30

26

6

11
Sunday
3rd May
31

26

8

11
Monday
4th May
30

26

6

11
Tuesday
5th May
31

26

5

9
Wednesday
6th May
30

26

1

11

5-day weather forecast updated at 04:00 on Friday 1st May 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 Saturday 2nd May 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 5-10 mm of rainfall expected with 41% chance of some rain and a moderate breeze of 25 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
41
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
25
kph wind from E

Guam weather for Sunday 3rd May 2026

Expect broken clouds in Guam with a maximum temperature of 31°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 26 kph from the east.

31
°C maximum temperature
26
°C minimum temperature
broken clouds
8
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
26
kph wind from E

Guam weather for Monday 4th May 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 10-20 mm of rainfall expected with 70% chance of some rain and a moderate breeze of 26 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
70
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
26
kph wind from E

Guam weather for Tuesday 5th May 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and a moderate breeze of 25 kph from the east.

31
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
9
UV index (Very High)
58
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
25
kph wind from E

Guam weather for Wednesday 6th May 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 71% chance of some rain and a moderate breeze of 27 kph from the east.