Average monthly rainy days in Guam
The number of days each month with rain, snow and hail in Guam, Micronesia.
- Most rainy days are in January, February, March, April, May, June, July, August, September, October, November and December.
- On average, August is the most rainy.
- On average, February has the least rainy days.
- The average annual amount of rainy days is: 257.0 days