Agana weather live forecast

Today's maximum temperature in Agana is expected to be 28°C. Select a day from the live weather forecast for Agana, Guam for more weather parameters.

Sunday
14th Dec
28

26

3

7
Monday
15th Dec
29

26

4

8
Tuesday
16th Dec
30

26

6

8
Wednesday
17th Dec
30

26

5

8
Thursday
18th Dec
30

26

5

8

5-day weather forecast updated at 04:00 on Sunday 14th December 2025 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 14th December 2025

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a moderate breeze of 28 kph from the east.

28
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
7
UV index (High)
75
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
28
kph wind from E

Agana weather for Monday 15th December 2025

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 57% chance of some rain and a moderate breeze of 24 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
57
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
24
kph wind from E

Agana weather for Tuesday 16th December 2025

Expect broken clouds in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north-east.

30
°C maximum temperature
26
°C minimum temperature
broken clouds
6
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
24
kph wind from NE

Agana weather for Wednesday 17th December 2025

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 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a moderate breeze of 22 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
48
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from E

Agana weather for Thursday 18th December 2025

Expect broken clouds in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the east.