Agana weather

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Recommended for Guam

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.

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  • Agana weather today - current conditions (last 24-hours)

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

When is the best time to go to Agana?

The best time to go to 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]

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Max Day Temperature (°C)

  • 30°C maximum daytime temperature in January in Agana30
    Jan
  • 30°C maximum daytime temperature in February in Agana30
    Feb
  • 30°C maximum daytime temperature in March in Agana30
    Mar
  • 31°C maximum daytime temperature in April in Agana31
    Apr
  • 31°C maximum daytime temperature in May in Agana31
    May
  • 31°C maximum daytime temperature in June in Agana31
    Jun
  • 31°C maximum daytime temperature in July in Agana31
    Jul
  • 31°C maximum daytime temperature in August in Agana31
    Aug
  • 31°C maximum daytime temperature in September in Agana31
    Sep
  • 31°C maximum daytime temperature in October in Agana31
    Oct
  • 31°C maximum daytime temperature in November in Agana31
    Nov
  • 30°C maximum daytime temperature in December in Agana30
    Dec

Hours of Sunshine (daily)

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

Best time to go for the weather

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

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Tropical storm risk: Agana, Guam typhoon season

% of month affected by tropical storms
1.3%
0
0
1.4%
1.8%
1.7%
4.7%
6.9%
7.6%
7.9%
4.5%
2%
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The Agana, Guam tropical storm risk chart above shows the typhoon season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

More about tropical storms

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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.

What is the time difference between Guam and the UK?

The time difference between Guam and the UK is GMT+10 hours.

What is the main language spoken in Guam?

The main language spoken in Guam is English.

Learn a language for Guam with Busuu*, Lingoda* and Rocket Languages*.

What is the currency in Guam?

The currency in Guam is the US Dollar (USD).

Send money to Guam with Monito*.

Which plugs are used in Guam?

Guam uses electrical plug type A + B (110 Volts).

Which side of the road do they drive on in Guam?

They drive on the right side of the road in Guam.

Do you need a visa for Guam?

Yes, UK passport holders do need a visa to enter Guam.

Check Guam visa requirements for all passport holders with VisaHQ*.

Compare Agana weather with the USA

Below the Agana weather chart shows average maximum daytime temperature for Agana, Guam and the USA (Washington).

Maximum daytime temperature (°C)

Agana, Guam
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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