December weather forecast
Hunupitiya, Sri Lanka

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

Temperature

In December, Hunupitiya experiences a minor shift in meteorological conditions with average high-temperatures marked at a warm 29.9°C (85.8°F), closely mirroring the climate in November. Hunupitiya cools down to an average low-temperature of 23.7°C (74.7°F) throughout the month of December.

Heat index

December's heat index is estimated at a torrid 37°C (98.6°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In December, the average relative humidity in Hunupitiya, Sri Lanka, is 79%.

Rainfall

In Hunupitiya, in December, during 20.3 rainfall days, 139mm (5.47") of precipitation is typically accumulated. Throughout the year, in Hunupitiya, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

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

Sunshine

In December, the average sunshine is 7h.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Hunupitiya. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.