December weather forecast
Ahangama, Sri Lanka

December, the first month of the winter in Ahangama, is also a moderately hot month, with an average temperature varying between 24.9°C (76.8°F) and 29°C (84.2°F).

Temperature

December's onset records an average high-temperature of a still moderately hot 29°C (84.2°F), a near match to November's 29.1°C (84.4°F). Ahangama observes a minimal variance in temperature, with a consistent average low of 24.9°C (76.8°F) during the nights of December.

Heat index

During December, the heat index is evaluated at a fiery hot 35°C (95°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. 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 hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

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

Rainfall

In Ahangama, in December, it is raining for 23.2 days, with typically 110mm (4.33") of accumulated precipitation. Throughout the year, there are 292.5 rainfall days, and 1797mm (70.75") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 48min of daylight.
On the first day of the month, sunrise is at 06:03 and sunset at 17:51. On the last day of December, sunrise is at 06:18 and sunset at 18:05 +0530.

Sunshine

December has the least sunshine of the year, with an average of 7.2h of sunshine.

UV index

The months with the highest UV index in Ahangama are January through April, July, August, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in December transforms into this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.