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.

Monday
17th Aug
30

25

7

7
Tuesday
18th Aug
30

26

6

11
Wednesday
19th Aug
29

26

5

11
Thursday
20th Aug
30

27

5

11
Friday
21st Aug
31

27

6

11

5-day weather forecast updated at 04:00 on Monday 17th August 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 Monday 17th August 2026

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 13 kph from the south-west.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
62
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from SW

Agana weather for Tuesday 18th August 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 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 70% chance of some rain and a light breeze of 9 kph from the north.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
70
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from N

Agana weather for Wednesday 19th August 2026

Expect isolated thunderstorms in Agana, 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 10-20 mm of rainfall expected with 78% chance of some rain and a gentle breeze of 13 kph from the north.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
78
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from N

Agana weather for Thursday 20th August 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 5-10 mm of rainfall expected with 68% chance of some rain and a light breeze of 12 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
68
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from E

Agana weather for Friday 21st August 2026

Expect isolated thunderstorms in Agana, 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 0-2 mm of rainfall expected with 63% chance of some rain and a light breeze of 9 kph from the south-east.