San José in december: average Weather, Temperature and Climate
Weather in San José in december 2026
The weather in San Jose in the month of december comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
good weather
Weather at 6am
59°F
Clear/Sunny
38% of time
27%
20%
10%
Weather at 12pm
76°F
Clear/Sunny
41% of time
28%
26%
5%
Weather at 6pm
65°F
Moderate rain at times
37% of time
24%
16%
15%
Weather at 3am
59°F
35%
29%
19%
11%
Evolution of daily average temperature and precipitation in San José in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in San José in december.
The climate of San José in december is good
The weather in december in San Jose is wet (with 6.5in of rainfall over 8 days). The weather is better from the previous month since in november it receives an average of 18.4in of rainfall over 19 days.
The climate pleasant in this city this month. Temperatures are up to 76°F. The minimum is 59°F. Thus, the mean temperature average in december in San Jose is 68°F. Note that these seasonal averages are in contrast with those observed in San Jose in december with a maximum record of 85°F in 2021 and a minimum record of 52°F in 2010.
Day length in San Jose in december is 11:33. The sun rises at 05:45 and sets at 17:18.
With a correct weather, december is okay (but not the best) to go in this locality in Costa Rica.
Seasonal average climate and temperature of San José in december
Check below seasonal norms These statistics are set from the weather statements of the last years of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 68°F | ||||
| Highest temperature | 76°F | ||||
| Lowest temperature | 59°F | ||||
| Highest record temperature | 85°F (2021) | ||||
| Lowest record temperature | 52°F (2010) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 12km/h | ||||
| Wind temperature | 58°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 6.5in | ||||
| Number of days with rainfall | 8 day(s) (26%) | ||||
| Record daily rainfall | 4.6in (2019) | ||||
| Other climate data | |||||
| Humidity | 91% | ||||
| Visibility | 7.83km | ||||
| Cloud cover | 45% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:45 | ||||
| Time of sunset | 17:18 | ||||
| Length of day | 11:33 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last december?
Here is the day by day recorded weather in San José in december 2025:
52°F to 74°F
54°F to 70°F
52°F to 77°F
52°F to 79°F
54°F to 79°F
54°F to 72°F
59°F to 74°F
61°F to 70°F
59°F to 72°F
56°F to 77°F
56°F to 76°F
50°F to 79°F
56°F to 67°F
54°F to 72°F
56°F to 72°F
56°F to 77°F
58°F to 77°F
58°F to 76°F
56°F to 79°F
59°F to 77°F
59°F to 79°F
54°F to 77°F
54°F to 76°F
50°F to 79°F
52°F to 77°F
58°F to 77°F
54°F to 81°F
54°F to 79°F
50°F to 79°F
50°F to 77°F
56°F to 70°F
Map: other cities in Costa Rica in december
Cities near San José:
| Escazu in december | good weather |
| Heredia in december | good weather |
| Alajuela in december | good weather |
| Cartago in december | good weather |
| Tejar in december | good weather |
| Paraiso in december | good weather |
| Volcán Irazu in december | good weather |
| Atenas in december | good weather |
| Parque Nacional Braulio Carrillo in december | good weather |
| Volcán Poás in december | good weather |
| Naranjo in december | good weather |
| Parque Nacional Tapantí in december | good weather |
Click over cities on the map for information about the weather in december.
San José
perfect weather
good
tolerable
bad
very bad
Weather data for San José in december:
Weather data for San José for december are derived from an average of the weather forecast since 2009 in San José. There is a margin of error and these forecasts are to be considered as general information only. The weather in San José can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to San José.