Guam weather live forecast

Today's maximum temperature in Guam is expected to be 32°C. Select a day from the live weather forecast for Guam (Agana) for more weather parameters.

Tuesday
9th Jun
32

27

7

11
Wednesday
10th Jun
31

28

6

11
Thursday
11th Jun
31

28

8

11
Friday
12th Jun
31

27

5

11
Saturday
13th Jun
31

27

8

11

5-day weather forecast updated at 04:00 on Tuesday 9th June 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 Tuesday 9th June 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 52% chance of some rain and a gentle breeze of 14 kph from the east.

32
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
52
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
14
kph wind from E

Guam weather for Wednesday 10th June 2026

Expect broken clouds in Guam with a maximum temperature of 31°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 17 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

Guam weather for Thursday 11th June 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 gentle breeze of 14 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
broken clouds
8
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from E

Guam weather for Friday 12th June 2026

Expect isolated thunderstorms in Guam with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a light breeze of 12 kph from the east.

31
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
28
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from E

Guam weather for Saturday 13th June 2026

Expect scattered 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 light breeze of 10 kph from the east.