Last updated: March 2, 2024
The weather in San Juan, Philippines, during December is characterized by an average temperature of 27°C (80°F). Highs can soar to 31°C (87°F), while lows may dip to 24°C (75°F). Typically, the humidity level in San Juan throughout December hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, San Juan averages 378 mm (14.9 inches) of rainfall, typically over the course of 30 rainy days. The month enjoys an average of 11 hours 31 minutes of daylight, with the sun shining for approximately 8 hours 20 minutes each day. Additionally, there is a 11% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In December, the UV Index in San Juan reaches a maximum of 11, 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 | 1 | 3 | 6 | 9 | 11 | 11 | 9 | 6 | 3 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||