San Juan Precipitation: Average Monthly Rainfall and Snowfall

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

A lot of rain (rainy season) falls in the months: May, July, August, September, October and November.
On average, September is the wettest month with 159 mm of precipitation.
On average, February is the driest month with 47 mm of precipitation.
The average amount of annual precipitation is 1192 mm.

Current rainfall in San Juan

Sat Nov 23

31°C | 25°C

11 km/h

7.3 mm

partly cloudy and thunder

hourly forecast

Sun Nov 24

31°C | 25°C

18 km/h

3.5 mm

broken clouds and thunder

hourly forecast

Mon Nov 25

31°C | 26°C

22 km/h

0.6 mm

broken clouds and slight 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 San Juan.

Our site offers climate and forecast data for every country in the world. Are you going to Puerto Rico? On this website you can find historical weather averages for many cities in Puerto Rico. 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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