December weather forecast
Kantale, Sri Lanka

The first month of the winter, December, is also a moderately hot month in Kantale, Sri Lanka, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 21.4°C (70.5°F).

Temperature

The coldest months are January and December, with an average high-temperature of 29.3°C (84.7°F).

Heat index

December's heat index is appraised at a very hot 37°C (98.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Know that the heat index computations account for shaded terrains and slight winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

With an average relative humidity of 84%, December is the most humid month in Kantale, Sri Lanka.

Rainfall

In Kantale, during December, the rain falls for 22.9 days and regularly aggregates up to 127mm (5") of precipitation. Throughout the year, in Kantale, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 36min of daylight.
On the first day of the month, sunrise is at 06:04 and sunset at 17:45. On the last day of December, in Kantale, sunrise is at 06:19 and sunset at 17:58 +0530.

Sunshine

The month with the least sunshine is December, with an average of 4.9h of sunshine.

UV index

January, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.