December weather forecast
Panwila, Sri Lanka

December

Weather in December

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

Temperature

December stands out as Panwila'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).

Heat index

For December, the heat index is appraised at a tropical 31°C (87.8°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

The most humid month is December, with an average relative humidity of 84%.

Rainfall

In Panwila, in December, during 22.9 rainfall days, 118mm (4.65") of precipitation is typically accumulated. 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 December, 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.

Sunshine

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

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 6 in December transforms into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

What time of the year is the coldest?
December stands out as Panwila's coldest month, with temperatures ranging between an average high of 27.5°C (81.5°F) and a low of 19.5°C (67.1°F).
What are December temperatures?
During December, Panwila experiences an average high-temperature of 27.5°C (81.5°F) and a low-temperature of 19.5°C (67.1°F). In December, the average heat index (a.k.a. 'feels like', 'apparent 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?
With an average relative humidity of 84%, December is the most humid month.
What is the average humidity in December?
The average relative humidity in December is 84%.
How much does it rain in December?
In December, the rain falls for 22.9 days. Throughout December, 118mm (4.65") of precipitation is accumulated.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 11h and 42min of daylight.
How many hours of daylight does Panwila have in December?
In Panwila, the average day length in December is 11h and 43min.
When are sunrise and sunset in December?
On the first day of December, 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?
The month with the least sunshine is December, with an average of 5.7h of sunshine.
How long on average sun shines in December?
The average sunshine duration in December is 5.7h.
What are the months with the highest UV index?
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index.
How high is the UV index in December?
The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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 - Panwila, Sri Lanka
Average temperature in December
Panwila, 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 - Panwila, Sri Lanka
Average pressure in December
Panwila, 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 - Panwila, Sri Lanka
Average wind speed in December
Panwila, 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 - Panwila, Sri Lanka
Average humidity in December
Panwila, 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 - Panwila, Sri Lanka
Average rainfall in December
Panwila, 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 - Panwila, Sri Lanka
Average rainfall days in December
Panwila, 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 - Panwila, Sri Lanka
Average daylight in December /
Average sunshine in December
Panwila, 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 - Panwila, Sri Lanka
Average sunshine days in December
Panwila, 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 - Panwila, Sri Lanka
Average UV index in December
Panwila, 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 - Panwila, Sri Lanka
Average cloud cover in December
Panwila, 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 - Panwila, Sri Lanka
Average visibility in December
Panwila, 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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