San José, Costa Rica weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Good
Best time to visit: January – March
What is the weather like in San José, Costa Rica in December?
In December, San José, Costa Rica is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 76 mm in total. All in all, December is a good month for a holiday in San José, Costa Rica.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 51 | 70 | 85 |
| Day | 24° | 24° | 25° |
| Night | 18° | 17° | 17° |
| Sun | 3 h | 5 h | 6 h |
| Rain days | 23 | 12 | 6 |
More details for December
- Daylight
- 11 h 33 min05:45 – 17:18
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 3 daysdew point 18 °C or moreAll months
- Wind
- 11 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−6America/Costa_Rica
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %28 %
- Few rainy daysweight 30 %46 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
San José, Costa Rica in December: quick answers
Is San José, Costa Rica hot in December?
Warm rather than hot: in December, daytime highs in San José, Costa Rica average 24 °C and nights cool to about 17 °C.
Does it rain much in San José, Costa Rica in December?
Rain is frequent, with about 12 rainy days and 76 mm in total.
San José, Costa Rica month by month
The whole year in San José, Costa RicaAll destinations: Costa RicaWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences