December weather forecast
Wavinna, Sri Lanka

December

Weather in December

The first month of the winter, December, is still a warm month in Wavinna, Sri Lanka, with an average temperature varying between 27.5°C (81.5°F) and 19.5°C (67.1°F).

Temperature

Wavinna's December weather reaches an average high of 27.5°C (81.5°F) and an average low of 19.5°C (67.1°F), making it the coldest month.

Heat index

The heat index value for December is appraised at a hot 31°C (87.8°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to 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.

Humidity

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

Rainfall

In Wavinna, during December, the rain falls for 22.9 days and regularly aggregates up to 118mm (4.65") of precipitation. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 42min of daylight.
On the first day of the month, sunrise is at 06:04 and sunset at 17:48. On the last day of December, in Wavinna, sunrise is at 06:19 and sunset at 18:01 +0530.

Sunshine

The month with the least sunshine is December, with an average of 5.7h of sunshine.

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 in December translates into these instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. 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.

Frequently asked questions

What is the coldest month in Wavinna?
December stands out as Wavinna's coldest month, with an average high-temperature of 27.5°C (81.5°F) and a low-temperature of 19.5°C (67.1°F).
What are December temperatures in Wavinna?
The high-temperature, in December, in Wavinna, is 27.5°C (81.5°F), while the low-temperature averages to 19.5°C (67.1°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 31°C (87.8°F).
What is the most humid month in Wavinna?
December is the most humid month in Wavinna, Sri Lanka, with an average relative humidity of 84%.
What is the average humidity in December in Wavinna?
The average relative humidity in December in Wavinna is 84%.
How many days does it rain in December in Wavinna?
In Wavinna, in December, it is raining for 22.9 days, with typically 118mm (4.65") of accumulated precipitation.
What is the month with the shortest days in Wavinna?
The month with the shortest days in Wavinna is December, with an average of 11h and 42min of daylight.
What is the average length of the day in December in Wavinna?
In Wavinna, Sri Lanka, the average day length in December is 11h and 43min.
When are sunrise and sunset in December in Wavinna?
In December, on the first day of the month, sunrise is at 06:04 and sunset at 17:48. On the last day of the month, sunrise is at 06:19 and sunset at 18:01 +0530.
What is the month with the least sunshine in Wavinna?
December has the least sunshine of the year in Wavinna, Sri Lanka, with an average of 5.7h of sunshine.
How many hours of sunshine does Wavinna have in December?
In Wavinna, the average sunshine duration in December is 5.7h.
When is the highest UV index in Wavinna?
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Wavinna.
How high is the UV index in December in Wavinna?
In Wavinna, the average daily maximum UV index in December is 6. A UV Index reading 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 - Wavinna, Sri Lanka
Average temperature in December
Wavinna, Sri Lanka
  • Average high temperature in December: 27.5°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in December: 19.5°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 (18.1°C).

Average pressure in December - Wavinna, Sri Lanka
Average pressure in December
Wavinna, Sri Lanka
  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in December - Wavinna, Sri Lanka
Average wind speed in December
Wavinna, Sri Lanka
  • Average wind speed in December: 6.7km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

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

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in December - Wavinna, Sri Lanka
Average rainfall in December
Wavinna, Sri Lanka
  • Average rainfall in December: 118mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in December - Wavinna, Sri Lanka
Average rainfall days in December
Wavinna, Sri Lanka
  • Average rainfall days in December: 22.9 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

Average daylight in December / Average sunshine in December - Wavinna, Sri Lanka
Average daylight in December /
Average sunshine in December
Wavinna, 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: 5h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in December - Wavinna, Sri Lanka
Average sunshine days in December
Wavinna, Sri Lanka
  • Average sunshine days in December: 6.8 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in December - Wavinna, Sri Lanka
Average UV index in December
Wavinna, 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, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

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

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

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

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

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