Which is the hottest month in Agana?

The hottest time of year in Agana is normally September. Expect maximum daytime temperatures to reach 31°C with very high heat and humidity.

Which month has the most rain in Agana?

In terms of rainfall, August is usually the wettest month in Agana with 363mm on average. There are normally 20 days in August with some rain.

When is it sunniest in Agana?

The sunniest time of year in Agana is normally March with bright sunshine on average for 58% of daylight hours; that's 7 hours of sunshine per day.

When is the sea warmest in Agana?

The sea is usually at its warmest in Agana in August when the water temperature reaches 29°C.

Best time to visit Agana

Q: When is the best time to visit Agana?

The best time to visit Agana is March based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Agana by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Agana?

The best time to visit Agana is March based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

3
Jan
3
Feb
3.5
Mar
3
Apr
3
May
2.5
Jun
2
Jul
2
Aug
2
Sep
1.5
Oct
2
Nov
2.5
Dec

Change criteria

Max Day Temperature (°C)

30
Jan
30
Feb
30
Mar
31
Apr
31
May
31
Jun
31
Jul
31
Aug
31
Sep
31
Oct
31
Nov
30
Dec

Hours of Sunshine (daily)

6
Jan
6
Feb
7
Mar
7
Apr
7
May
7
Jun
5
Jul
5
Aug
5
Sep
4
Oct
5
Nov
5
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Guam, represented by Agana, (Agana) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)