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.

Sunday
29th Mar
29

25

5

11
Monday
30th Mar
30

25

6

11
Tuesday
31st Mar
30

25

6

11
Wednesday
1st Apr
30

26

6

11
Thursday
2nd Apr
29

25

6

11

5-day weather forecast updated at 04:00 on Saturday 28th 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 29th 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 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 42% chance of some rain and a light breeze of 12 kph from the north-east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
42
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NE

Guam weather for Monday 30th 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 2-5 mm of rainfall expected with 45% chance of some rain and a gentle breeze of 16 kph from the north-east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
45
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from NE

Guam weather for Tuesday 31st 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 40% chance of some rain and a gentle breeze of 17 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
40
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

Guam weather for Wednesday 1st April 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 18 kph from the north-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
18
kph wind from NE

Guam weather for Thursday 2nd April 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 0-2 mm of rainfall expected with 52% chance of some rain and a gentle breeze of 18 kph from the north-east.