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San Antonio Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in San Antonio (Heredia). 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, June, July, August, September, October, November and December.
  • On average, October is the wettest month with 467 mm of precipitation.
  • On average, March is the driest month with 43 mm of precipitation.
  • The average amount of annual precipitation is 3059 mm.

Current rainfall in San Antonio

Sat   Nov 23
24°C | 19°C
E 18 km/h
3.3 mm
overcast and slight rain

overcast and slight rain

Sun   Nov 24
25°C | 19°C
E 14 km/h
2.6 mm
broken clouds and rain

broken clouds and rain

Mon   Nov 25
27°C | 20°C
W 14 km/h
20 mm
broken clouds and thunder

broken clouds and thunder

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