Last updated: March 2, 2024
The weather in Siwalan, Indonesia, during December is characterized by an average temperature of 28°C (82°F). Highs can soar to 31°C (89°F), while lows may dip to 25°C (78°F). Typically, the humidity level in Siwalan throughout December hovers around 75%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Siwalan averages 271 mm (10.7 inches) of rainfall, typically over the course of 28 rainy days. The month enjoys an average of 12 hours 30 minutes of daylight, with the sun shining for approximately 8 hours 59 minutes each day. Additionally, there is a 7% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Siwalan reaches a maximum of 13, 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 | 9 | 12 | 13 | 13 | 11 | 7 | 4 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 25 min | 30 min | 45 min | ||||||