December weather forecast
Gonapola, Sri Lanka

The first month of the winter, December, is still a warm month in Gonapola, Sri Lanka, with an average temperature varying between 24.4°C (75.9°F) and 29.7°C (85.5°F).

Temperature

Gonapola, Sri Lanka, experiences a transition to a still warm 29.7°C (85.5°F) in average high-temperatures with the arrival of December, not greatly differing from November's 29.8°C (85.6°F). Throughout December, Gonapola encounters an average temperature drop to a still moderately hot 24.4°C (75.9°F).

Heat index

December's mean heat index is appraised at a sweltering 36°C (96.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. 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. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In December, the average relative humidity is 79%.

Rainfall

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

Daylight

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

Sunshine

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

UV index

The months with the highest UV index in Gonapola are January through April, July, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.