Juan Santamaria International Airport (SJO) 15 Day Weather Forecast, San Jose Costa Rica
Current weather conditions and 15 day weather forecast for Juan Santamaria International Airport in San Jose, Costa Rica including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at SJO
| 18 December 2025 Thu 26.1 ° C ( 79°F )  Sunny |
Feels Like : 26.3 ° C / 79.4°F Humidity : % 70 Pressure : 1014 mb Wind Speed : 8.6 kmph / 5.4 miles from WSW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15-day weather forecast for Juan Santamaria International Airport, San Jose, Costa Rica
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 December 2025 Thu | Sunny |
13.8 ° C | 27.1 ° C | 19.2 ° C | % 67 | 9 km/h | 0% |
| 19 December 2025 Fri | Sunny |
14 ° C | 28.4 ° C | 20 ° C | % 67 | 9.7 km/h | 0% |
| 20 December 2025 Sat |  Partly Cloudy |
15.5 ° C | 27.7 ° C | 20.4 ° C | % 75 | 10.1 km/h | 0% |
| 21 December 2025 Sun |  Patchy rain nearby |
15.1 ° C | 28.3 ° C | 20 ° C | % 74 | 9 km/h | 83% |
| 22 December 2025 Mon | Sunny |
14.8 ° C | 27.9 ° C | 18.4 ° C | % 75 | 9 km/h | 0% |
| 23 December 2025 Tue | Partly Cloudy |
15.4 ° C | 27.8 ° C | 19.8 ° C | % 74 | 8.6 km/h | 0% |
| 24 December 2025 Wed | Patchy rain nearby |
15.9 ° C | 27.7 ° C | 19.7 ° C | % 80 | 8.3 km/h | 88% |
| 25 December 2025 Thu | Patchy rain nearby |
14.2 ° C | 27.9 ° C | 19.4 ° C | % 77 | 9.4 km/h | 73% |
| 26 December 2025 Fri | Patchy rain nearby |
15.4 ° C | 28.9 ° C | 19.8 ° C | % 80 | 8.3 km/h | 86% |
| 27 December 2025 Sat | Patchy rain nearby |
15.6 ° C | 27.4 ° C | 19.7 ° C | % 81 | 8.3 km/h | 88% |
| 28 December 2025 Sun | Patchy rain nearby |
15.5 ° C | 25 ° C | 19.4 ° C | % 84 | 7.6 km/h | 70% |
| 29 December 2025 Mon | Patchy rain nearby |
15.6 ° C | 27 ° C | 19.7 ° C | % 84 | 7.9 km/h | 88% |
| 30 December 2025 Tue | Patchy rain nearby |
16.3 ° C | 27.1 ° C | 20.4 ° C | % 81 | 8.3 km/h | 85% |
| 31 December 2025 Wed | Patchy rain nearby |
18 ° C | 26.5 ° C | 21 ° C | % 80 | 15.5 km/h | 82% |
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