Agana weather live forecast

Today's maximum temperature in Agana is expected to be 30°C. Select a day from the live weather forecast for Agana, Guam for more weather parameters.

Sunday
2nd Aug
30

27

4

9
Monday
3rd Aug
30

27

2

9
Tuesday
4th Aug
30

27

3

8
Wednesday
5th Aug
31

27

6

10
Thursday
6th Aug
30

27

4

5

5-day weather forecast updated at 04:00 on Friday 31st July 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.

Agana weather forecast by day

Below are the detailed weather forecasts for Agana for the next 5 days.

Agana weather for Sunday 2nd August 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 30-40 mm of rainfall expected with 87% chance of some rain and a fresh breeze of 30 kph from the west.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
9
UV index (Very High)
87
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
30
kph wind from W

Agana weather for Monday 3rd August 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 93% chance of some rain and a fresh breeze of 33 kph from the west.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
9
UV index (Very High)
93
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
33
kph wind from W

Agana weather for Tuesday 4th August 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 93% chance of some rain and a fresh breeze of 32 kph from the south-west.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
8
UV index (Very High)
93
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
32
kph wind from SW

Agana weather for Wednesday 5th August 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 20-30 mm of rainfall expected with 89% chance of some rain and a fresh breeze of 30 kph from the south-west.

31
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
89
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
30
kph wind from SW

Agana weather for Thursday 6th August 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 50 mm or more of rainfall expected with 98% chance of some rain and a fresh breeze of 31 kph from the west.