December weather forecast and climate
Anuradhapura, Sri Lanka

Weather in December

December, the first month of the winter, in Anuradhapura, is also a moderately hot month, with average temperature ranging between min 21.7°C (71.1°F) and max 29.5°C (85.1°F).

Temperature

The coldest month is December, with an average high-temperature of 29.5°C (85.1°F) and an average low-temperature of 21.7°C (71.1°F).

Heat index

In December, the average heat index is computed to be a torrid 37.2°C (99°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, pregnancy, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

With an average relative humidity of 84%, December is the most humid month.

Rainfall

In Anuradhapura, it is raining for 22.4 days, with typically 107mm (4.21") of accumulated precipitation. Throughout the year, in Anuradhapura, there are 199.1 rainfall days, and 893mm (35.16") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11.6h of daylight.

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year in Anuradhapura.

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 unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the coldest month in Anuradhapura?

With an average high-temperature of 29.5°C (85.1°F) and an average low-temperature of 21.7°C (71.1°F), December is the coldest month.

What is the temperature in December in Anuradhapura?

In Anuradhapura, in December, the average high-temperature is 29.5°C (85.1°F), and the average low-temperature is 21.7°C (71.1°F). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in December is computed to be 37.2°C (99°F).

What is the most humid month in Anuradhapura?

December is the most humid month in Anuradhapura, Sri Lanka, with an average relative humidity of 84%.

What is the average humidity in December in Anuradhapura?

In Anuradhapura, the average relative humidity in December is 84%.

How many days does it rain in December in Anuradhapura?

In Anuradhapura, during December, the rain falls for 22.4 days and regularly aggregates up to 107mm (4.21") of precipitation.

What is the month with the shortest days in Anuradhapura?

The month with the shortest days in Anuradhapura, Sri Lanka, is December, with an average of 11.6h of daylight.

How many hours of daylight does Anuradhapura have in December?

In December, the average length of the day in Anuradhapura is 11.6h.

What is the month with the least sunshine in Anuradhapura?

December has the least sunshine of the year in Anuradhapura, Sri Lanka, with an average of 5.1h of sunshine.

How long on average sun shines in December in Anuradhapura?

In December, the average sunshine in Anuradhapura, Sri Lanka, is 5.1h.

When is the lowest UV index in Anuradhapura?

January, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Anuradhapura.

How high is the UV index in December in Anuradhapura?

In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in December
Anuradhapura, Sri Lanka

Average temperature in December - Anuradhapura, 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).

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Average pressure in December
Anuradhapura, Sri Lanka

Average pressure in December - Anuradhapura, 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).

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Average wind speed in December
Anuradhapura, Sri Lanka

Average wind speed in December - Anuradhapura, 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).

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Average humidity in December
Anuradhapura, Sri Lanka

Average humidity in December - Anuradhapura, Sri Lanka
  • Average humidity in December: 84%

The month with the highest relative humidity is December (84%).
Months with the lowest relative humidity are July, August and September (71%).

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Average rainfall in December
Anuradhapura, Sri Lanka

Average rainfall in December - Anuradhapura, 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).

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Average rainfall days in December
Anuradhapura, Sri Lanka

Average rainfall days in December - Anuradhapura, 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).

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Average daylight in December /
Average sunshine in December
Anuradhapura, Sri Lanka

Average daylight in December / Average sunshine in December - Anuradhapura, Sri Lanka
  • Average daylight in December: 11.6h

Months with the longest days are June and July (Average daylight: 12.6h).
The month with the shortest days is December (Average daylight: 11.6h).

  • Average sunshine in December: 5.1h

Months with the most sunshine are May and July (Average sunshine: 10.2h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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Average sunshine days in December
Anuradhapura, Sri Lanka

Average sunshine days in December - Anuradhapura, 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).

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Average UV index in December
Anuradhapura, Sri Lanka

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

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

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Average cloud cover in December
Anuradhapura, Sri Lanka

Average cloud cover in December - Anuradhapura, 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).

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Average visibility in December
Anuradhapura, Sri Lanka

Average visibility in December - Anuradhapura, Sri Lanka
  • Average visibility in December: 8km

Months with the highest visibility are May, June, July, August and September (10km).
Months with the lowest visibility are January, February, November and December (8km).

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