December weather forecast
Kaliyammahara, Sri Lanka

December, the first month of the winter in Kaliyammahara, is also a moderately hot month, with an average temperature fluctuating between 29.7°C (85.5°F) and 24.1°C (75.4°F).

Temperature

December's advent denotes a minor fluctuation in the average high-temperature to a warm 29.7°C (85.5°F) from November's 30°C (86°F). During the month of December, Kaliyammahara experiences a steady low-temperature average of 24.1°C (75.4°F).

Heat index

December's heat index is appraised at a torrid 36°C (96.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in December in Kaliyammahara is 79%.

Rainfall

In Kaliyammahara, during December, the rain falls for 19.9 days and regularly aggregates up to 124mm (4.88") of precipitation. In Kaliyammahara, during the entire year, the rain falls for 272.3 days and collects up to 2039mm (80.28") of precipitation.

Daylight

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

Sunshine

The average sunshine in December in Kaliyammahara is 7h.

UV index

The months with the highest UV index in Kaliyammahara are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.