Climate in San José (San José), Costa Rica

The graphs below show the monthly weather averages over the year.
* Data from weather station: San José, Costa Rica.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Monthly precipitation

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

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average humidity

The mean monthly relative humidity over the year

Weather Forecasts for San José (San José)

THU Sep 16
25°C | 14°C

Heavy rain

FRI Sep 17
28°C | 12°C

Moderate rain

SAT Sep 18
25°C | 13°C

Heavy rain

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

Here are some average weather facts we collected from our historical climate data:

  • On average, the temperatures are always high.
  • A lot of rain (rainy season) falls in the month of: May, June, July, August, September and October.
  • San José has dry periods in January, February and March.
  • The warmest month is April with an average maximum temperature of 30°C (86°F).
  • The coldest month is December with an average maximum temperature of 27°C (80°F).
  • September is the most wet month. This month should be avoided if you are not a big fan of rain.
  • January is the driest month.
  • March is the most sunny month.
No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.