Best year time to visit San Antonio

General weather information about San Antonio

Average annual temperature is 21.3 °C

Absolute maximum temperature: 28.1 °C

Absolute minimum temperature: 15.0 °C

Number of sunny days: 18 days

Number of rainy days: 347 days

* Weather data for San Antonio Costa Rica is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	24.2	23.3	25.3	28.1	27.4	26.5	26.5	27.3	27.6	26.9	26.8	26.0
Average daytime temperature (°C)	22.0	22.1	23.3	24.2	25.7	25.0	24.9	25.5	26.1	24.9	24.2	23.6
Average temperature (°C)	19.3	19.2	20.0	20.6	22.3	22.1	22.0	22.3	22.5	22.3	21.6	21.0
Average night temperature (°C)	17.1	17.3	17.6	17.2	19.2	19.5	19.6	19.7	19.7	19.9	19.4	18.9
Absolute minimum temperature (°C)	15.0	15.4	16.4	15.4	17.8	18.5	18.5	18.3	18.7	18.6	18.2	17.4

The largest precipitation sum in San Antonio is at

August — 413(mm)

October — 539(mm)

November — 382(mm)

December — 466(mm)

When is the best time to visit San Antonio?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit San Antonio.

What is the weather like in San Antonio?

See average temperature, rainfall and daylight hours for San Antonio by month in the table above.

How many sunny days does San Antonio have?

The monthly weather statistics above show sunshine and rainfall patterns for San Antonio throughout the year.