December weather forecast
Kesbewa, Sri Lanka

The first month of the winter, December, is still a warm month in Kesbewa, Sri Lanka, with an average temperature fluctuating between 24.4°C (75.9°F) and 29.7°C (85.5°F).

Temperature

Kesbewa's average high-temperature marks a still moderately hot 29.7°C (85.5°F) with the advent of December, closely mirroring that of the preceding month. Throughout December nights, Kesbewa registers an average low-temperature of 24.4°C (75.9°F).

Heat index

The heat index value for December is computed to be a sweltering 36°C (96.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Kesbewa, during December, the rain falls for 16.5 days and regularly aggregates up to 93mm (3.66") of precipitation. In Kesbewa, during the entire year, the rain falls for 274.1 days and collects up to 2115mm (83.27") of precipitation.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:06 and sunset at 17:52. On the last day of December, in Kesbewa, Sri Lanka, sunrise is at 06:21 and sunset at 18:05 +0530.

Sunshine

In Kesbewa, the average sunshine in December is 7.1h.

UV index

January through April, July, September 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 risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, an average UV index of 7 transforms into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.