December weather forecastEppawala, Sri Lanka
December
Weather in December
December, the first month of the winter in Eppawala, is still a warm month, with temperature in the range of an average low of 21.7°C (71.1°F) and an average high of 29.5°C (85.1°F).Temperature
Eppawala's coldest weather arrives in December, when temperatures average a high of 29.5°C (85.1°F) and a low of 21.7°C (71.1°F).Heat index
During December, the heat index is evaluated at a very hot 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Observations indicate that the heat index values are for shady locations with light 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 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
December is the most humid month in Eppawala, with an average relative humidity of 84%.Rainfall
In Eppawala, in December, during 22.4 rainfall days, 107mm (4.21") of precipitation is typically accumulated. In Eppawala, during the entire year, the rain falls for 199.1 days and collects up to 893mm (35.16") of precipitation.Daylight
December has the shortest days of the year in Eppawala, with an average of 11h and 42min of daylight.On the first day of December, sunrise is at 06:06 and sunset at 17:48. On the last day of the month, sunrise is at 06:21 and sunset at 18:01 +0530.
Sunshine
The month with the least sunshine is December, with an average of 5.1h of sunshine.UV index
January, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, a daily UV index of 6 turns into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Eppawala, Sri Lanka
- Average high temperature in December: 29.5°C
The warmest months (with the highest average high temperature) are March and April (34.3°C).
The month with the lowest average high temperature is December (29.5°C).
- Average low temperature in December: 21.7°C
The month with the highest average low temperature is June (25.4°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in December
Eppawala, Sri Lanka
- Average pressure in December: 1010.6mbar
The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.2mbar).
Average wind speed in December
Eppawala, Sri Lanka
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is June (27.4km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in December
Eppawala, Sri Lanka
- Average humidity in December: 84%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are July, August and September (71%).
Average rainfall in December
Eppawala, Sri Lanka
- Average rainfall in December: 107mm
The wettest month (with the highest rainfall) is October (205mm).
The driest month (with the least rainfall) is June (20mm).
Average rainfall days in December
Eppawala, Sri Lanka
- Average rainfall days in December: 22.4 days
The month with the highest number of rainy days is November (25.5 days).
The month with the least rainy days is July (10.4 days).
Average daylight in December /
Average sunshine in December
Eppawala, Sri Lanka
- Average daylight in December: 11h and 42min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in December: 5h and 6min
The months with the most sunshine are May and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Eppawala, Sri Lanka
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is July (18.3 days).
The month with the least sunshine days is November (3.2 days).
Average UV index in December
Eppawala, Sri Lanka
- Average UV index in December: 6
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in December
Eppawala, Sri Lanka
- Average cloud cover in December: 52
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is March (Cloud cover 26).
Average visibility in December
Eppawala, Sri Lanka
- Average visibility in December: 8km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, November and December (8km).





