December weather forecast
Waga, Sri Lanka

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

Temperature

Waga records an average high-temperature of a moderately hot 29.9°C (85.8°F) in December, maintaining a close correlation with November's 30.1°C (86.2°F). During the month of December, an average low-temperature of 23.7°C (74.7°F) is recorded.

Heat index

In December, the heat index is evaluated at a sweltering 37°C (98.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. 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 Waga, Sri Lanka, is 79%.

Rainfall

In December, the rain falls for 21.1 days. Throughout December, 148mm (5.83") of precipitation is accumulated. Throughout the year, in Waga, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

The month with the shortest days in Waga is December, with an average of 11h and 42min of daylight.
On the first day of December, sunrise is at 06:05 and sunset at 17:51. On the last day of the month, sunrise is at 06:20 and sunset at 18:04 +0530.

Sunshine

The average sunshine in December is 6.9h.

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 reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in December translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.