San Jose
Costa Rica
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 38 | 37 | 35 | 33 | 35 | 38 | 37 | 36 | 36 | 33 | 37 | 37 | 38 |
| Average high, °C | 28 | 28 | 27 | 28 | 26 | 26 | 27 | 27 | 28 | 28 | 27 | 28 | 27 |
| Average temperature, °C | 23 | 23 | 22 | 23 | 21 | 21 | 22 | 23 | 23 | 23 | 23 | 23 | 23 |
| Average low, °C | 19 | 19 | 18 | 19 | 17 | 16 | 17 | 18 | 19 | 19 | 19 | 19 | 18 |
| Record low, °C | 16 | 12 | 18 | 17 | 10 | 16 | 17 | 12 | 18 | 17 | 18 | 17 | 10 |
| Rain, days | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 16 | 180 |
| Thunderstorms, days | 10 | 8 | 3 | 1 | 0 | 0 | 0 | 1 | 5 | 11 | 12 | 12 | 63 |
| Average precipitation, mm. | 252 | 251 | 262 | 287 | 172 | 146 | 86 | 120 | 233 | 276 | 271 | 251 | 2606 |
| Relative humidity, % | 80 | 80 | 85 | 85 | 85 | 85 | 80 | 80 | 85 | 85 | 85 | 85 | 83 |
| Relative humidity morning, % | 95 | 95 | 95 | 95 | 94 | 94 | 94 | 94 | 94 | 95 | 96 | 95 | 95 |
| Relative humidity evening, % | 76 | 78 | 79 | 78 | 75 | 75 | 74 | 73 | 76 | 78 | 79 | 79 | 77 |
| Wind speed, km/h | 8 | 12 | 8 | 8 | 9 | 12 | 12 | 12 | 9 | 8 | 8 | 9 | 10 |
| Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 |
| Dew point, °C | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 271 |
| Growing degree-day, °C | 399 | 403 | 373 | 405 | 344 | 318 | 374 | 381 | 413 | 399 | 403 | 405 | 4617 |
| Solar radiation, global, Mj/m2 | 16 | 14 | 13 | 13 | 15 | 17 | 18 | 18 | 15 | 14 | 13 | 14 | 15 |