December weather forecast
Kidagammulla, Sri Lanka

December

Weather in December

December, the first month of the winter in Kidagammulla, is still a warm month, with an average temperature ranging between max 29.9°C (85.8°F) and min 23.7°C (74.7°F).

Temperature

The commencement of December introduces an average high-temperature of a moderately hot 29.9°C (85.8°F), closely mirroring the preceding month. An average low-temperature of 23.7°C (74.7°F) is expected in Kidagammulla during December.

Heat index

During December, the heat index is evaluated at a torrid 37°C (98.6°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

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

Rainfall

In Kidagammulla, in December, during 20.3 rainfall days, 139mm (5.47") of precipitation is typically accumulated. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Kidagammulla, 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 18:04 +0530.

Sunshine

In December, the average sunshine 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 ordinary individuals.
Note: A maximum high daily UV index of 7 during December translates into the following directions:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

How hot is December in Kidagammulla?
In December, the average high-temperature and low-temperature are 29.9°C (85.8°F) and 23.7°C (74.7°F) respectively. In December, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 37°C (98.6°F).
What is the average humidity in December in Kidagammulla?
In Kidagammulla, Sri Lanka, the average relative humidity in December is 79%.
How many days does it rain in December in Kidagammulla?
In Kidagammulla, in December, during 20.3 rainfall days, 139mm (5.47") of precipitation is typically accumulated.
What is the month with the shortest days in Kidagammulla?
December has the shortest days of the year in Kidagammulla, with an average of 11h and 42min of daylight.
How many hours of daylight does Kidagammulla have in December?
In December, the average day length in Kidagammulla, Sri Lanka, is 11h and 43min.
When is the sunrise / sunset in December in Kidagammulla?
In December, on the first day of the month, sunrise is at 06:06 and sunset at 17:51. On the last day of the month, in Kidagammulla, Sri Lanka, sunrise is at 06:21 and sunset at 18:04 +0530.
How many hours of sunshine does Kidagammulla have in December?
In December, the average sunshine duration is 7h.
When is the highest UV index in Kidagammulla?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index reading in December in Kidagammulla?
The average daily maximum UV index in December in Kidagammulla is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Kidagammulla, Sri Lanka
  • Average high temperature in December: 29.9°C

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).

  • Average low temperature in December: 23.7°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).

Average pressure in December
Kidagammulla, Sri Lanka
  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).

Average wind speed in December
Kidagammulla, Sri Lanka
  • Average wind speed in December: 14.1km/h

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).

Average humidity in December
Kidagammulla, Sri Lanka
  • Average humidity in December: 79%

The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).

Average rainfall in December
Kidagammulla, Sri Lanka
  • Average rainfall in December: 139mm

The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).

Average rainfall days in December
Kidagammulla, Sri Lanka
  • Average rainfall days in December: 20.3 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).

Average daylight in December /
Average sunshine in December
Kidagammulla, Sri Lanka
  • Average daylight in December: 11h and 4min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in December: 7h and 0min

The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in December
Kidagammulla, Sri Lanka
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).

Average UV index in December
Kidagammulla, Sri Lanka
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).

Average cloud cover in December
Kidagammulla, Sri Lanka
  • Average cloud cover in December: 36

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).

Average visibility in December
Kidagammulla, Sri Lanka
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).

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