December weather forecastDalupotha, Sri Lanka

Weather in December

December, the first month of the winter in Dalupotha, is also a moderately hot month, with an average temperature ranging between min 23.7°C (74.7°F) and max 29.9°C (85.8°F).

Temperature

December's presence marks an average high-temperature of a warm 29.9°C (85.8°F), subtly varied from November's 30.2°C (86.4°F). Throughout December, Dalupotha's nights cool down to an average of 23.7°C (74.7°F).

Heat index

December's average heat index is estimated at a very hot 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The average relative humidity in December is 79%.

Rainfall

In Dalupotha, in December, it is raining for 20.3 days, with typically 139mm (5.47") of accumulated precipitation. In Dalupotha, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 42min of daylight.
On the first day of December, sunrise is at 06:07 and sunset at 17:51. On the last day of the month, sunrise is at 06:22 and sunset at 18:05 +0530.

Sunshine

In December, the average sunshine is 7h.

UV index

The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in December translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.