December weather forecast
Hikkaduwa, Sri Lanka

December further dials down the rainfall to 114mm (4.49"), extending the tourist-friendly climates ushered in by November. Unfurling into the mild winters, December holds consistent temperatures, while the humidity takes a slight edge off. The sea maintains its warmth, complementing the city's overall balmy atmosphere. As the year concludes, Hikkaduwa's skies often display a stunning array of colors at sunset, offering an awe-inspiring sight. The glowing days and wind-kissed evenings makes December an ideal time to experience Hikkaduwa in all its glory.

Temperature

Hikkaduwa, Sri Lanka, registers an average high-temperature of a still moderately hot 28.9°C (84°F) with the arrival of December, showing minor deviation from the preceding month. Nighttime readings in Hikkaduwa during December register a minimal drop from daytime highs, averaging at a still warm 24.8°C (76.6°F).

Heat index

For most parts of December, the heat index is evaluated at a hot 34°C (93.2°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Hikkaduwa, Sri Lanka, in December, it is raining for 22.1 days, with typically 114mm (4.49") of accumulated precipitation. Throughout the year, in Hikkaduwa, there are 286.9 rainfall days, and 1974mm (77.72") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Hikkaduwa is 28.2°C (82.8°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.

Daylight

With an average of 11h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:04 and sunset at 17:52. On the last day of December, sunrise is at 06:19 and sunset at 18:05 +0530.

Sunshine

The month with the least sunshine is December, with an average of 7h of sunshine.

UV index

January through April, June through August, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 7 during December morphs into the following directions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Beware! Reflecting off water and sand, UV rays are much stronger.