Last updated: March 2, 2024
The weather in San Juan, Peru, during April is characterized by an average temperature of 7°C (46°F). Highs can soar to 17°C (62°F), while lows may dip to -4°C (25°F). Typically, the humidity level in San Juan throughout April hovers around 90%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, San Juan averages 142 mm (5.6 inches) of rainfall, typically over the course of 23 rainy days. The month enjoys an average of 11 hours 44 minutes of daylight, with the sun shining for approximately 10 hours 20 minutes each day. Additionally, there is a 30% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in San Juan reaches a maximum of 16, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 1 | 3 | 7 | 12 | 15 | 16 | 15 | 11 | 6 | 3 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | Extreme | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 10 min | 25 min | 30 min | 45 min | ||||||