December weather forecast
Mawalgama, Sri Lanka

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

Temperature

The shift into December records an average high-temperature of a moderately hot 29.9°C (85.8°F), subtly varied from November's 30.1°C (86.2°F). During the month of December, Mawalgama anticipates a mean low-temperature of 23.7°C (74.7°F).

Heat index

For December, the heat index is computed to be a fiery hot 37°C (98.6°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 are extremely vital to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

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

Rainfall

In Mawalgama, in December, during 21.1 rainfall days, 148mm (5.83") of precipitation is typically accumulated. In Mawalgama, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") 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 06:06 and sunset at 17:51. On the last day of December, sunrise is at 06:20 and sunset at 18:04 +0530.

Sunshine

In December, the average sunshine is 6.9h.

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 Mawalgama, Sri Lanka. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 7 transforms into these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.