Best time to visit Agana

Find the best time to visit Agana and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Agana by month

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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]

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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

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

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)

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