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
12th Apr
29

26

5

11
Monday
13th Apr
28

25

1

2
Tuesday
14th Apr
28

26

0

3
Wednesday
15th Apr
29

26

3

7
Thursday
16th Apr
30

26

5

11

5-day weather forecast updated at 04:00 on Sunday 12th 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 Sunday 12th 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 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a fresh breeze of 31 kph from the north-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
63
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
31
kph wind from NE

Guam weather for Monday 13th April 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 50 mm or more of rainfall expected with 87% chance of some rain and a moderate gale of 55 kph from the north.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
2
UV index (Low)
87
% chance of some rain
>50
mm or more of rainfall expected
M
moderate heat & humidity
55
kph wind from N

Guam weather for Tuesday 14th April 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 50 mm or more of rainfall expected with 96% chance of some rain and a fresh gale of 65 kph from the west.

28
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
3
UV index (Moderate)
96
% chance of some rain
>50
mm or more of rainfall expected
M
moderate heat & humidity
65
kph wind from W

Guam weather for Wednesday 15th April 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 30-40 mm of rainfall expected with 86% chance of some rain and a moderate gale of 52 kph from the south-west.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
7
UV index (High)
86
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
52
kph wind from SW

Guam weather for Thursday 16th 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 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 77% chance of some rain and a fresh breeze of 34 kph from the south-west.