December weather forecast
Neelammahara, Sri Lanka

December, the first month of the winter in Neelammahara, is still a warm month, with temperature in the range of an average high of 29.7°C (85.5°F) and an average low of 24.1°C (75.4°F).

Temperature

Upon the beginning of December, Neelammahara's high-temperatures register at a moderately hot 29.7°C (85.5°F), closely mirroring the preceding month. Neelammahara encounters an average low-temperature of 24.1°C (75.4°F) during December nights.

Heat index

December's heat index is calculated to be a torrid 36°C (96.8°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Neelammahara, in December, it is raining for 19.9 days, with typically 124mm (4.88") of accumulated precipitation. In Neelammahara, during the entire year, the rain falls for 272.3 days and collects up to 2039mm (80.28") of precipitation.

Daylight

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

Sunshine

In December, the average sunshine is 7h.

UV index

The months with the highest UV index in Neelammahara, Sri Lanka, are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 in December translates into these instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.