December weather forecast
Raddolugama, Sri Lanka

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

Temperature

The onset of December marks an average high-temperature of a moderately hot 29.9°C (85.8°F), hardly differing from November's 30.2°C (86.4°F). Raddolugama, during December, witnesses an average low-temperature of 23.7°C (74.7°F).

Heat index

December's heat index is computed to be a torrid 37°C (98.6°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Raddolugama, the average relative humidity in December is 79%.

Rainfall

In Raddolugama, in December, it is raining for 20.3 days, with typically 139mm (5.47") of accumulated precipitation. In Raddolugama, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:07 and sunset at 17:51. On the last day of December, sunrise is at 06:21 and sunset at 18:05 +0530.

Sunshine

In Raddolugama, the average sunshine in December is 7h.

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 value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.