December weather forecast
Bobella, Sri Lanka

December, the first month of the winter in Bobella, is also a moderately hot month, with an average temperature fluctuating between 29.3°C (84.7°F) and 21.4°C (70.5°F).

Temperature

Temperatures reach their minimum during January and December, recording an average high-temperature of 29.3°C (84.7°F).

Heat index

For most parts of December, the heat index is estimated at a fiery hot 37°C (98.6°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The most humid month is December, with an average relative humidity of 84%.

Rainfall

In Bobella, in December, it is raining for 22.9 days, with typically 127mm (5") of accumulated precipitation. In Bobella, during the entire year, the rain falls for 196.8 days and collects up to 943mm (37.13") of precipitation.

Daylight

December has the shortest days of the year in Bobella, with an average of 11h and 42min of daylight.
On the first day of December, sunrise is at 06:05 and sunset at 17:47. On the last day of the month, sunrise is at 06:20 and sunset at 18:00 +0530.

Sunshine

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

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in December transforms into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.