December weather forecast
Jawatta, Sri Lanka

December, the first month of the winter in Jawatta, is also a moderately hot month, with an average temperature varying between 24.4°C (75.9°F) and 29.7°C (85.5°F).

Temperature

The transition from November to December sees an average high-temperature of a still warm 29.7°C (85.5°F), indicating a minor variance from the prior month. Throughout December, the average low-temperature in Jawatta dips to a still moderately hot 24.4°C (75.9°F).

Heat index

In December, the heat index is appraised at a sweltering 36°C (96.8°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In December, in Jawatta, the rain falls for 16.5 days. Throughout December, 93mm (3.66") of precipitation is accumulated. Throughout the year, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.

Daylight

The month with the shortest days in Jawatta, Sri Lanka, is December, with an average of 11h and 42min of daylight.
On the first day of December in Jawatta, sunrise is at 06:06 and sunset at 17:52. On the last day of the month, sunrise is at 06:20 and sunset at 18:05 +0530.

Sunshine

In December, the average sunshine is 7.1h.

UV index

January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a daily maximum UV index of 7 leads to the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.