Last updated: August 31, 2025
In Sri Jayewardenepura Kotte, Sri Lanka, the average temperature in December hovers around 27°C (80°F), with lows dipping to 20°C (69°F) and highs peaking at 34°C (94°F). Expect some rain during your stay, with an average precipitation of 170 mm (6.7 in) spread over 16 days. Furthermore, the air is quite humid, with an average humidity level of 80%, creating a warm and breezy atmosphere.
In December in Sri Jayewardenepura Kotte, the average temperature is 27°C (80°F). Maximums can reach 34°C (94°F), while minimums can dip to as low as 20°C (69°F). This makes it an ideal time for visitors to enjoy warm weather activities and explore the beautiful surroundings.
In Sri Jayewardenepura Kotte in December, the total precipitation amount is 170 mm (6.7 in) spread over 16 days.
In Sri Jayewardenepura Kotte in December humidity is 80%. With an average temperature of 27°C (80°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities feel more exhausting and sticky, and challenging you to stay hydrated while exploring.
In Sri Jayewardenepura Kotte in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Sri Jayewardenepura Kotte.
UV Risk Categories
Weather in Sri Jayewardenepura Kotte varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sri Jayewardenepura Kotte, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (81°F) | 68 mm (2.7 inches) | 77% | extreme |
| February Weather | 28°C (83°F) | 61 mm (2.4 inches) | 73% | extreme |
| March Weather | 29°C (84°F) | 122 mm (4.8 inches) | 74% | extreme |
| April Weather | 28°C (83°F) | 144 mm (5.7 inches) | 74% | extreme |
| May Weather | 28°C (83°F) | 284 mm (11.2 inches) | 76% | extreme |
| June Weather | 28°C (82°F) | 270 mm (10.6 inches) | 82% | extreme |
| July Weather | 27°C (82°F) | 205 mm (8.1 inches) | 82% | extreme |
| August Weather | 27°C (81°F) | 250 mm (9.8 inches) | 83% | extreme |
| September Weather | 27°C (81°F) | 245 mm (9.6 inches) | 82% | extreme |
| October Weather | 27°C (80°F) | 377 mm (14.9 inches) | 81% | extreme |
| November Weather | 27°C (80°F) | 358 mm (14.1 inches) | 80% | extreme |
| December Weather | 27°C (80°F) | 170 mm (6.7 inches) | 80% | very high |