December weather forecast
Thelangapatha, Sri Lanka

The first month of the winter, December, is still a warm month in Thelangapatha, Sri Lanka, with an average temperature varying between 29.9°C (85.8°F) and 23.7°C (74.7°F).

Temperature

Thelangapatha's entry into December measures an average high-temperature of a warm 29.9°C (85.8°F), closely parallel to the preceding month. During the month of December, Thelangapatha experiences a steady low-temperature average of 23.7°C (74.7°F).

Heat index

For most parts of December, the heat index is evaluated at a very hot 37°C (98.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The average relative humidity in December is 79%.

Rainfall

In Thelangapatha, in December, during 21.1 rainfall days, 148mm (5.83") of precipitation is typically accumulated. Throughout the year, in Thelangapatha, Sri Lanka, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Thelangapatha, with an average of 11h and 42min of daylight.
On the first day of December, sunrise is at 06:07 and sunset at 17:52. On the last day of the month, sunrise is at 06:21 and sunset at 18:05 +0530.

Sunshine

In December, the average sunshine in Thelangapatha is 6.9h.

UV index

The months with the highest UV index in Thelangapatha 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 health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 7 in December suggests the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.