December weather forecast
Kosgoda, Sri Lanka

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Weather in December

The first month of the winter, December, is also a moderately hot month in Kosgoda, Sri Lanka, with an average temperature varying between 28.4°C (83.1°F) and 19.9°C (67.8°F).

Temperature

Kosgoda, Sri Lanka, transitions into December recording an average high-temperature of a still warm 28.4°C (83.1°F), closely aligning with the preceding month's temperature. The temperature lowers to an average of 19.9°C (67.8°F) during December nights.

Heat index

The heat index value during December is computed to be a hot 34°C (93.2°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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 in Kosgoda, Sri Lanka, is 85%.

Rainfall

In Kosgoda, in December, it is raining for 25.6 days, with typically 209mm (8.23") of accumulated precipitation. Throughout the year, there are 317.3 rainfall days, and 2422mm (95.35") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 48min of daylight.
On the first day of December in Kosgoda, Sri Lanka, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, sunrise is at 06:20 and sunset at 18:05 +0530.

Sunshine

The month with the least sunshine in Kosgoda is December, with an average of 6h of sunshine.

UV index

January through August, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 6 during December morphs into the following directions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

How hot is December in Kosgoda?

In Kosgoda, 28.4°C (83.1°F) is the average high-temperature and 19.9°C (67.8°F) is the average low-temperature during December. In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 34°C (93.2°F).

What is the average humidity in December in Kosgoda?

The average relative humidity in December in Kosgoda, Sri Lanka, is 85%.

How many days does it rain in December in Kosgoda?

In December, in Kosgoda, the rain falls for 25.6 days. Throughout December, 209mm (8.23") of precipitation is accumulated.

What is the month with the shortest days in Kosgoda?

The month with the shortest days is December, with an average of 11h and 48min of daylight.

What is the average length of the day in December in Kosgoda?

The average day length in December in Kosgoda is 11h and 46min.

When are sunrise and sunset in December in Kosgoda?

On the first day of December, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, sunrise is at 06:20 and sunset at 18:05 +0530.

What is the month with the least sunshine in Kosgoda?

With an average of 6h of sunshine, December has the least sunshine of the year in Kosgoda.

How long on average sun shines in December in Kosgoda?

The average sunshine duration in December in Kosgoda is 6h.

What are the months with the highest UV index in Kosgoda?

The months with the highest UV index are January through August, November and December, with an average maximum UV index of 6.

What is the UV index intensity in December in Kosgoda?

In December, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kosgoda, Sri Lanka

Average temperature in December - Kosgoda, Sri Lanka
  • Average high temperature in December: 28.4°C

The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°C).

  • Average low temperature in December: 19.9°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.7°C).

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Average pressure in December
Kosgoda, Sri Lanka

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

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

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Average wind speed in December
Kosgoda, Sri Lanka

Average wind speed in December - Kosgoda, Sri Lanka
  • Average wind speed in December: 4.3km/h

The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).

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Average humidity in December
Kosgoda, Sri Lanka

Average humidity in December - Kosgoda, Sri Lanka
  • Average humidity in December: 85%

The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).

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Average rainfall in December
Kosgoda, Sri Lanka

Average rainfall in December - Kosgoda, Sri Lanka
  • Average rainfall in December: 209mm

The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).

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Average rainfall days in December
Kosgoda, Sri Lanka

Average rainfall days in December - Kosgoda, Sri Lanka
  • Average rainfall days in December: 25.6 days

The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).

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

Average daylight in December / Average sunshine in December - Kosgoda, Sri Lanka
  • Average daylight in December: 11h and 5min

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 48min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in December
Kosgoda, Sri Lanka

Average sunshine days in December - Kosgoda, Sri Lanka
  • Average sunshine days in December: 3.6 days

The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).

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Average UV index in December
Kosgoda, Sri Lanka

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

The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
The months with the lowest UV index are September and October (UV index 5).

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Average cloud cover in December
Kosgoda, Sri Lanka

Average cloud cover in December - Kosgoda, Sri Lanka
  • Average cloud cover in December: 47

The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).

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Average visibility in December
Kosgoda, Sri Lanka

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

The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).

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Kosgoda, Sri Lanka

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