Last updated: March 2, 2024
The weather in San Juan, Philippines, during January is characterized by an average temperature of 26°C (80°F). Highs can soar to 30°C (86°F), while lows may dip to 24°C (75°F). Typically, the humidity level in San Juan throughout January hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, San Juan averages 308 mm (12.1 inches) of rainfall, typically over the course of 24 rainy days. The month enjoys an average of 11 hours 34 minutes of daylight, with the sun shining for approximately 7 hours 11 minutes each day. Additionally, there is a 14% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, 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 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 | 12 | 12 | 11 | 8 | 4 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 30 min | 45 min | |||||