December weather forecast
Kattankudy, Sri Lanka

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Kattankudy, Sri Lanka, with an average temperature fluctuating between 24.5°C (76.1°F) and 28°C (82.4°F).

Temperature

December's arrival brings an average high-temperature of a still moderately hot 28°C (82.4°F), slightly deviating from November's 29.3°C (84.7°F). Kattankudy's nighttime temperatures in December display a slight drop from daytime highs, averaging to a still moderately hot 24.5°C (76.1°F).

Heat index

The heat index value for December is calculated to be a tropical 32°C (89.6°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 extremely significant 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.

Humidity

With an average relative humidity of 81%, December is the most humid month in Kattankudy.

Rainfall

The month with the most rainfall is December, when the rain falls for 25.2 days and typically aggregates up to 272mm (10.71") of precipitation.

Daylight

The month with the shortest days in Kattankudy is December, with an average of 11h and 42min of daylight.
On the first day of the month, sunrise is at 06:00 and sunset at 17:43. On the last day of December, sunrise is at 06:15 and sunset at 17:56 +0530.

Sunshine

The month with the least sunshine in Kattankudy is December, with an average of 5.4h of sunshine.

UV index

November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in December transforms into this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full 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.

Frequently asked questions

How hot does it get in Kattankudy in December?
December temperatures in Kattankudy, Sri Lanka, vary between a high-temperature of 28°C (82.4°F) and a low-temperature of 24.5°C (76.1°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in December is calculated to be 32°C (89.6°F).
What is the most humid month in Kattankudy?
December is the most humid month, with an average relative humidity of 81%.
What is the average humidity in December in Kattankudy?
The average relative humidity in December is 81%.
What is the rainiest month in Kattankudy?
December is the month with the most rainfall. Rain falls for 25.2 days and accumulates 272mm (10.71") of precipitation.
How much does it rain in Kattankudy in December?
In Kattankudy, in December, it is raining for 25.2 days, with typically 272mm (10.71") of accumulated precipitation.
What is the month with the shortest days in Kattankudy?
The month with the shortest days is December, with an average of 11h and 42min of daylight.
How many hours of daylight does Kattankudy have in December?
In December, the average day length in Kattankudy is 11h and 41min.
When are sunrise and sunset in December in Kattankudy?
In December, on the first day of the month, sunrise is at 06:00 and sunset at 17:43. On the last day of the month, sunrise is at 06:15 and sunset at 17:56 +0530.
What is the month with the least sunshine in Kattankudy?
With an average of 5.4h of sunshine, December has the least sunshine of the year in Kattankudy, Sri Lanka.
How long on average sun shines in December in Kattankudy?
In Kattankudy, Sri Lanka, the average sunshine duration in December is 5.4h.
What are the months with the lowest UV index in Kattankudy?
November and December, with an average maximum UV index of 6, are months with the lowest UV index.
How high is the UV index in December in Kattankudy?
The average daily maximum UV index in December in Kattankudy is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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 - Kattankudy, Sri Lanka
Average temperature in December
Kattankudy, Sri Lanka
  • Average high temperature in December: 28°C

The warmest month (with the highest average high temperature) is June (33°C).
The month with the lowest average high temperature is January (27.3°C).

  • Average low temperature in December: 24.5°C

The month with the highest average low temperature is May (26.6°C).
The coldest month (with the lowest average low temperature) is January (24°C).

Average pressure in December - Kattankudy, Sri Lanka
Average pressure in December
Kattankudy, Sri Lanka
  • Average pressure in December: 1010.4mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1007.3mbar).

Average wind speed in December - Kattankudy, Sri Lanka
Average wind speed in December
Kattankudy, Sri Lanka
  • Average wind speed in December: 13km/h

The windiest month (with the highest average wind speed) is January (13.9km/h).
The calmest month (with the lowest average wind speed) is September (9.1km/h).

Average humidity in December - Kattankudy, Sri Lanka
Average humidity in December
Kattankudy, Sri Lanka
  • Average humidity in December: 81%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are June and July (68%).

Average rainfall in December - Kattankudy, Sri Lanka
Average rainfall in December
Kattankudy, Sri Lanka
  • Average rainfall in December: 272mm

The wettest month (with the highest rainfall) is December (272mm).
The driest month (with the least rainfall) is June (30mm).

Average rainfall days in December - Kattankudy, Sri Lanka
Average rainfall days in December
Kattankudy, Sri Lanka
  • Average rainfall days in December: 25.2 days

The months with the highest number of rainy days are October and November (25.5 days).
The month with the least rainy days is March (12.8 days).

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

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 2min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December - Kattankudy, Sri Lanka
Average sunshine days in December
Kattankudy, Sri Lanka
  • Average sunshine days in December: 4.2 days

The month with the most sunshine days is March (15.5 days).
The month with the least sunshine days is November (3.2 days).

Average UV index in December - Kattankudy, Sri Lanka
Average UV index in December
Kattankudy, Sri Lanka
  • Average UV index in December: 6

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

Average cloud cover in December - Kattankudy, Sri Lanka
Average cloud cover in December
Kattankudy, Sri Lanka
  • Average cloud cover in December: 50

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 22).

Average visibility in December - Kattankudy, Sri Lanka
Average visibility in December
Kattankudy, Sri Lanka
  • Average visibility in December: 9km

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

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