Last updated: March 2, 2024
The weather in Polonnaruwa, Sri Lanka, during January is characterized by an average temperature of 25°C (77°F). Highs can soar to 31°C (89°F), while lows may dip to 18°C (65°F). Typically, the humidity level in Polonnaruwa throughout January hovers around 80%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Polonnaruwa averages 92 mm (3.6 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 11 hours 42 minutes of daylight, with the sun shining for approximately 8 hours 23 minutes each day. Additionally, there is a 16% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Polonnaruwa 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 | |||||