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Average climate of Guam

The climate of Guam has an average yearly temperature of 31°C. Throughout the year, the average monthly temperature can drop to 30°C and rise to 32°C.

Annually, about 2631 mm of rain falls. This gives a good overview of how much rain to expect in Guam.

The climate of Guam
  • Average yearly temperature: 31°C
  • Highest temperature: 32°C in May and June
  • Lowest temperature: 30°C in January and February
  • Precipitation: 2631 mm per year, averaging 219 mm per month
  • Driest months: 66 mm in March, 84 mm in February and 95 mm in April
  • Wettest months: 440 mm in October, 439 mm in September and 361 mm in August

Climate table Guam

The climate table for Guam shows the average temperatures, precipitation, and UV index per month.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daytime temperature (°C) 30 30 31 31 32 32 31 31 31 31 31 31
Nighttime temperature (°C) 25 25 25 26 27 27 26 26 26 26 26 26
Precipitation (mm) 180 84 66 95 155 130 288 361 439 440 232 161
UV Index 6 7 7 7 7 7 7 6 5 5 4 6

Temperature per month in Guam

This graph shows the average high temperatures in degrees Celsius for each month in Guam

Temperature per month in Guam

Precipitation per month in Guam

This graph shows the average monthly precipitation in millimeters in Guam.

Precipitation per month in Guam

UV index per month in Guam

This graph shows the average UV index per month in Guam.

UV index per month in Guam

Yearly temperature in Guam

This graph shows the average yearly temperature in Guam, measured in degrees Celsius.

Yearly temperature in Guam

Yearly total precipitation in Guam

This graph shows the average yearly precipitation in millimeters in Guam.

Precipitation per year in Guam

Weather experiences in Guam

The weather in Guam is rated an average of 4 out of 5 stars by 11 visitors.

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Weather Experience: Good

The sky was clear and there were beautiful sunsets.— This text has been automatically translated into English

Weather Experience: Good

All in all, a great experience.— This text has been automatically translated into English

Weather Experience: Good

The heat was intense, but the many hours of sunshine made up for it. It rained several days, which cooled it down a bit. In short: beautiful weather!— This text has been automatically translated into English

Weather Experience: Good

For an unashamed sun worshipper, the brilliant sun was heavenly and the evenings remained surprisingly warm. The sun shone constantly, but sometimes thunderstorms played against us.— This text has been automatically translated into English

Weather Experience: Good

Regular rainfall caused some inconvenience, but fortunately this was short-lived.— This text has been automatically translated into English

Weather Experience: Good

The evenings cooled off pleasantly and provided a good night's sleep. There were occasional tropical showers, but they were brief and refreshing.— This text has been automatically translated into English

Weather Experience: Good

It was tropically warm, perfect for the beach and outdoor activities. In the evening it was pleasantly cool.— This text has been automatically translated into English

Weather Experience: Good

It was hot, averaging 30 degrees, but not too hot. The light rain was pleasant and refreshing. The perfect escape from the winter cold!— This text has been automatically translated into English

Weather Experience: Good

Tropical temperatures that may even rise and occasional showers. In short, wonderful weather!— This text has been automatically translated into English

Weather Experience: Good

Not too hot, not too chilly. There will be isolated, brief showers. Ideal for anyone who likes a mild, humid climate.— This text has been automatically translated into English

Weather Experience: Good

A wonderful combination of sunshine and some rain with temperatures around 28 degrees Celsius. Ideal for anyone who loves a warm Christmas. One small downside, it gets dark quite early.— This text has been automatically translated into English

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Average weather in Guam per month

Click on a month below to see in detail how the weather typically is in Guam and what to expect. Based on the historical weather data of Guam, you can view the average temperature, precipitation, wind, and UV index for each day of the month.