Guam Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Guam (). The numbers are calculated over a 30-year period to provide a reliable average.

A lot of rain (rainy season) falls in the months: June, July, August, September, October, November and December.
On average, August is the wettest month with 362 mm of precipitation.
On average, March is the driest month with 59 mm of precipitation.
The average amount of annual precipitation is 2128 mm.

Current rainfall in Guam

Thu Nov 21

32°C | 26°C

25 km/h

0.9 mm

partly cloudy and small chance of rain

hourly forecast

Fri Nov 22

32°C | 27°C

29 km/h

2.5 mm

partly cloudy and chance of rain

hourly forecast

Sat Nov 23

32°C | 27°C

29 km/h

2.2 mm

partly cloudy and chance of rain

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

This site provides you with all the information you need about the climate in Guam.

Our site offers climate and forecast data for every country in the world. Are you going to Micronesia? On this website you can find historical weather averages for many cities in Micronesia. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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