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San Antonio Climate by Month

The graphs below provide an overview of the climate in San Antonio (Heredia), Costa Rica. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Forecast for San Antonio

Thu   Nov 14
23°C | 20°C
W 14 km/h
33 mm
overcast and heavy rain

overcast and heavy rain

Fri   Nov 15
23°C | 20°C
W 18 km/h
26 mm
overcast and heavy rain

overcast and heavy rain

Sat   Nov 16
23°C | 19°C
W 18 km/h
25 mm
overcast and heavy rain

overcast and heavy rain

The best time of year to visit San Antonio in Costa Rica

During the months of January, February, May, June, July, August, September, October, November and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Which is the warmest month in San Antonio?
    April has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in San Antonio?
    The coldest month is January with an average maximum temperature of 25°C.
  • Which is the wettest month in San Antonio?
    October tops the wettest month list with 467 mm of rainfall.
  • Which is the driest month in San Antonio?
    March is the driest month with 43 mm of precipitation.
  • Which is the sunniest month in San Antonio?
    March is the sunniest month with an average of 284 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.