December weather forecastIlavalai, Sri Lanka
December weather forecast for Ilavalai, Sri Lanka: The first month of the winter, December, is also a moderately hot month in Ilavalai, Sri Lanka, with an average temperature ranging between min 26.1°C (79°F) and max 27.3°C (81.1°F). In Ilavalai, Sri Lanka, in December, during 21.8 rainfall days, 192mm (7.56") of precipitation is typically accumulated.
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Ilavalai, Sri Lanka, with an average temperature ranging between min 26.1°C (79°F) and max 27.3°C (81.1°F).Temperature
As December unfolds, the average high-temperature reaches a still moderately hot 27.3°C (81.1°F), hinting at a slight fluctuation from the previous month. Ilavalai notes a steady average temperature of 26.1°C (79°F) during the nights of December.Heat index
For most parts of December, the heat index is appraised at a tropical 30°C (86°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In December, the average relative humidity is 78%.Rainfall
In Ilavalai, Sri Lanka, in December, during 21.8 rainfall days, 192mm (7.56") of precipitation is typically accumulated. In Ilavalai, during the entire year, the rain falls for 189.6 days and collects up to 1106mm (43.54") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 36min of daylight.On the first day of the month, sunrise is at 06:11 and sunset at 17:47. On the last day of December, sunrise is at 06:26 and sunset at 18:00 +0530.
Sunshine
December has the least sunshine of the year, with an average of 5.5h of sunshine.UV index
January through September and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 7 during December, leads to the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ilavalai, Sri Lanka
- Average high temperature in December: 27.3°C
The warmest month (with the highest average high temperature) is May (30.7°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in December: 26.1°C
The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).
Average pressure in December
Ilavalai, Sri Lanka
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.8mbar).
Average wind speed in December
Ilavalai, Sri Lanka
- Average wind speed in December: 23.4km/h
The windiest month (with the highest average wind speed) is June (32.9km/h).
The calmest month (with the lowest average wind speed) is April (16.3km/h).
Average humidity in December
Ilavalai, Sri Lanka
- Average humidity in December: 78%
The months with the highest relative humidity are May and September (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in December
Ilavalai, Sri Lanka
- Average rainfall in December: 192mm
The wettest months (with the highest rainfall) are October and November (257mm).
The driest month (with the least rainfall) is March (18mm).
Average rainfall days in December
Ilavalai, Sri Lanka
- Average rainfall days in December: 21.8 days
The month with the highest number of rainy days is October (25.1 days).
The months with the least rainy days are February and March (7.6 days).
Average daylight in December /
Average sunshine in December
Ilavalai, Sri Lanka
- Average daylight in December: 11h and 36min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in December: 5h and 30min
The months with the most sunshine are May and June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Ilavalai, Sri Lanka
- Average sunshine days in December: 5.5 days
The month with the most sunshine days is March (21.2 days).
The month with the least sunshine days is November (3.8 days).
Average UV index in December
Ilavalai, Sri Lanka
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September and December (UV index 7).
The months with the lowest UV index are October and November (UV index 6).
Average cloud cover in December
Ilavalai, Sri Lanka
- Average cloud cover in December: 47
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).
Average visibility in December
Ilavalai, Sri Lanka
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
