December weather forecast
Kataragama, Sri Lanka

December, the first month of the winter in Kataragama, is still a warm month, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 29°C (84.2°F).

Temperature

December brings the lowest temperatures, with an average high of 29°C (84.2°F) and an average low of 24.5°C (76.1°F).

Heat index

The heat index for December is evaluated at a fiery hot 35°C (95°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The months with the highest humidity are November and December, with an average relative humidity of 79%.

Rainfall

In Kataragama, Sri Lanka, in December, during 20.1 rainfall days, 131mm (5.16") of precipitation is typically accumulated. In Kataragama, during the entire year, the rain falls for 192.9 days and collects up to 942mm (37.09") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 48min of daylight.
On the first day of December, sunrise is at 06:00 and sunset at 17:47. On the last day of the month, sunrise is at 06:14 and sunset at 18:00 +0530.

Sunshine

The month with the least sunshine is December, with an average of 6.6h of sunshine.

UV index

January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, an average UV index of 7 transforms into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.