December weather forecast
Ahungalla, Sri Lanka

Weather in December

The first month of the winter, December, is also a moderately hot month in Ahungalla, Sri Lanka, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 24.8°C (76.6°F).

Temperature

In December, the average high-temperature is essentially the same as in November - a still moderately hot 28.9°C (84°F). The average low-temperature, in Ahungalla, is 24.8°C (76.6°F).

Heat index

In December, the average heat index is appraised at a hot 34.3°C (93.7°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, clothing, wind, and metabolic differences affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In Ahungalla, during December, the rain falls for 22.1 days and regularly aggregates up to 114mm (4.49") of precipitation. Throughout the year, there are 286.9 rainfall days, and 1974mm (77.72") of precipitation is accumulated.

Sea temperature

In Ahungalla, the average seawater temperature in December is 28°C (82.4°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

With an average of 11h and 46min of daylight, December has the shortest days of the year in Ahungalla, Sri Lanka.
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 06:19 and sunset at 18:05 +0530.

Sunshine

December has the least sunshine of the year in Ahungalla, with an average of 7h of sunshine.

UV index

The months with the highest UV index are January through April, June through August, October through 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: The daily maximum UV index of 7 in December interpret into the following advice:
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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in December in Ahungalla?

The average high-temperature, in December, in Ahungalla, is 28.9°C (84°F), while the average low-temperature is 24.8°C (76.6°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in December is appraised at 34.3°C (93.7°F).

What is the average humidity in December in Ahungalla?

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

How many days does it rain in December in Ahungalla?

In Ahungalla, in December, during 22.1 rainfall days, 114mm (4.49") of precipitation is typically accumulated.

What is the sea water temperature in December in Ahungalla?

In December, the average sea temperature in Ahungalla is 28°C (82.4°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the month with the shortest days in Ahungalla?

The month with the shortest days in Ahungalla, Sri Lanka, is December, with an average of 11h and 46min of daylight.

How many hours of daylight does Ahungalla have in December?

The average day length in December in Ahungalla, Sri Lanka, is 11h and 46min.

What time are sunrise and sunset in December in Ahungalla?

On the first day of December in Ahungalla, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, sunrise is at 06:19 and sunset at 18:05 +0530.

What is the month with the least sunshine in Ahungalla?

December has the least sunshine of the year, with an average of 7h of sunshine.

How long on average sun shines in December in Ahungalla?

In Ahungalla, the average sunshine duration in December is 7h.

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

January through April, June through August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Ahungalla, Sri Lanka.

How high is the UV index in December in Ahungalla?

In Ahungalla, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.

Average temperature in December
Ahungalla, Sri Lanka

Average temperature in December - Ahungalla, Sri Lanka
  • Average high temperature in December: 28.9°C

The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).

  • Average low temperature in December: 24.8°C

The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).

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Average pressure in December
Ahungalla, Sri Lanka

Average pressure in December - Ahungalla, Sri Lanka
  • Average pressure in December: 1010.2mbar

The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).

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Average wind speed in December
Ahungalla, Sri Lanka

Average wind speed in December - Ahungalla, Sri Lanka
  • Average wind speed in December: 9.4km/h

The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).

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Average humidity in December
Ahungalla, Sri Lanka

Average humidity in December - Ahungalla, Sri Lanka
  • Average humidity in December: 79%

The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).

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Average rainfall in December
Ahungalla, Sri Lanka

Average rainfall in December - Ahungalla, Sri Lanka
  • Average rainfall in December: 114mm

The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).

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Average rainfall days in December
Ahungalla, Sri Lanka

Average rainfall days in December - Ahungalla, Sri Lanka
  • Average rainfall days in December: 22.1 days

The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).

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Average sea temperature in December
Ahungalla, Sri Lanka

Average sea temperature in December - Ahungalla, Sri Lanka
  • Average sea temperature in December: 28°C

The best month for swimming (with the highest average sea temperature) is April (30°C).
The coldest months (with the lowest average sea temperature) are July, August and September (27°C).

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

Average daylight in December / Average sunshine in December - Ahungalla, Sri Lanka
  • Average daylight in December: 11h and 46min

The month with the longest days is June (Average daylight: 12h and 29min).
The month with the shortest days is December (Average daylight: 11h and 46min).

  • Average sunshine in December: 7h

The month with the most sunshine is April (Average sunshine: 9.3h).
The month with the least sunshine is December (Average sunshine: 7h).

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Average sunshine days in December
Ahungalla, Sri Lanka

Average sunshine days in December - Ahungalla, Sri Lanka
  • Average sunshine days in December: 6.4 days

The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).

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Average UV index in December
Ahungalla, Sri Lanka

Average UV index in December - Ahungalla, Sri Lanka
  • Average UV index in December: 7

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

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Average cloud cover in December
Ahungalla, Sri Lanka

Average cloud cover in December - Ahungalla, Sri Lanka
  • Average cloud cover in December: 38

The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).

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Average visibility in December
Ahungalla, Sri Lanka

Average visibility in December - Ahungalla, Sri Lanka
  • Average visibility in December: 10km

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

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