December weather forecast
Makumbura, Sri Lanka

The first month of the winter, December, is still a warm month in Makumbura, Sri Lanka, with an average temperature varying between 29.7°C (85.5°F) and 24.1°C (75.4°F).

Temperature

Makumbura experiences an average high-temperature of a warm 29.7°C (85.5°F) in December, subtly different from November's 30°C (86°F). December in Makumbura sees the temperature falling to a mean low of 24.1°C (75.4°F).

Heat index

For most parts of December, the heat index is evaluated at a sweltering 36°C (96.8°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in December is 79%.

Rainfall

In Makumbura, Sri Lanka, during December, the rain falls for 19.9 days and regularly aggregates up to 124mm (4.88") of precipitation. In Makumbura, during the entire year, the rain falls for 272.3 days and collects up to 2039mm (80.28") of precipitation.

Daylight

December has the shortest days of the year in Makumbura, with an average of 11h and 42min of daylight.
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 06:21 and sunset at 18:05 +0530.

Sunshine

The average sunshine in December is 7h.

UV index

The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in December leads to these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.