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.

Thursday
9th Apr
30

26

8

11
Friday
10th Apr
29

25

4

11
Saturday
11th Apr
30

26

6

11
Sunday
12th Apr
29

26

3

9
Monday
13th Apr
29

26

1

2

5-day weather forecast updated at 04:00 on Thursday 9th April 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 Thursday 9th April 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 72% chance of some rain and a moderate breeze of 27 kph from the north-east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
72
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from NE

Guam weather for Friday 10th 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 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 48% chance of some rain and a fresh breeze of 29 kph from the north-east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
11
UV index (Extreme)
48
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
29
kph wind from NE

Guam weather for Saturday 11th April 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 73% chance of some rain and a fresh breeze of 30 kph from the north-east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
73
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
30
kph wind from NE

Guam weather for Sunday 12th April 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a strong breeze of 42 kph from the north-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
9
UV index (Very High)
90
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
42
kph wind from NE

Guam weather for Monday 13th April 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 40-50 mm of rainfall expected with 91% chance of some rain and a moderate gale of 54 kph from the east.