December weather forecast
Batagoda, Sri Lanka

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

Temperature

Batagoda greets December with an average high-temperature of a still warm 29.7°C (85.5°F), marking a slight deviation from the preceding month. An average low-temperature of 24.4°C (75.9°F) marks the nights throughout December.

Heat index

For December, the heat index is evaluated at a torrid 36°C (96.8°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for 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.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

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

Rainfall

In December, the rain falls for 16.5 days. Throughout December, 93mm (3.66") of precipitation is accumulated. In Batagoda, Sri Lanka, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 42min of daylight.
On the first day of the month, sunrise is at 06:05 and sunset at 17:51. On the last day of December, in Batagoda, sunrise is at 06:20 and sunset at 18:05 +0530.

Sunshine

In Batagoda, the average sunshine in December is 7.1h.

UV index

The months with the highest UV index are January through April, July, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.