Last updated: March 2, 2024
The weather in Kalutara, Sri Lanka, during December is characterized by an average temperature of 26°C (80°F). Highs can soar to 30°C (87°F), while lows may dip to 23°C (74°F). Typically, the humidity level in Kalutara throughout December hovers around 80%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Kalutara averages 188 mm (7.4 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 11 hours 44 minutes of daylight, with the sun shining for approximately 9 hours 53 minutes each day. Additionally, there is a 48% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Kalutara reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 15 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 | 10 | 10 | 9 | 6 | 3 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||