Last updated: March 2, 2024
The weather in San Juan, United States, during June is characterized by an average temperature of 30°C (86°F). Highs can soar to 39°C (102°F), while lows may dip to 22°C (73°F). Typically, the humidity level in San Juan throughout June hovers around 73%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In June, San Juan averages 81 mm (3.2 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 13 hours 44 minutes of daylight, with the sun shining for approximately 11 hours 7 minutes each day. Additionally, there is a 50% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In June, the UV Index in San Juan reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 | 1 | 3 | 5 | 8 | 10 | 12 | 12 | 10 | 7 | 5 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||