Agana weather live forecast

Today's maximum temperature in Agana is expected to be 29°C. Select a day from the live weather forecast for Agana, Guam for more weather parameters.

Thursday
3rd Sep
29

26

5

9
Friday
4th Sep
30

27

5

11
Saturday
5th Sep
29

27

6

9
Sunday
6th Sep
29

26

5

7
Monday
7th Sep
30

26

3

11

5-day weather forecast updated at 04:00 on Wednesday 2nd September 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 Thursday 3rd September 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 20-30 mm of rainfall expected with 92% chance of some rain and a fresh breeze of 30 kph from the south-west.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
9
UV index (Very High)
92
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
30
kph wind from SW

Agana weather for Friday 4th September 2026

Expect isolated thunderstorms in Agana, 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 20-30 mm of rainfall expected with 77% chance of some rain and a moderate breeze of 25 kph from the south-west.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
77
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
25
kph wind from SW

Agana weather for Saturday 5th September 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 30-40 mm of rainfall expected with 73% chance of some rain and a gentle breeze of 19 kph from the west.

29
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
9
UV index (Very High)
73
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from W

Agana weather for Sunday 6th September 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 20-30 mm of rainfall expected with 82% chance of some rain and a gentle breeze of 17 kph from the west.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
82
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from W

Agana weather for Monday 7th September 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 13 kph from the south-west.