Last updated: March 2, 2024
The weather in San Jose, Costa Rica, during April is characterized by an average temperature of 26°C (78°F). Highs can soar to 29°C (85°F), while lows may dip to 22°C (72°F). Typically, the humidity level in San Jose throughout April hovers around 63%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, San Jose averages 75 mm (2.9 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 12 hours 21 minutes of daylight, with the sun shining for approximately 10 hours 50 minutes each day. Additionally, there is a 29% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in San Jose reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 2 | 5 | 8 | 12 | 14 | 14 | 12 | 9 | 5 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||