December weather forecast
Liyanagemulla, Sri Lanka

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Liyanagemulla, Sri Lanka, with an average temperature fluctuating between 23.7°C (74.7°F) and 29.9°C (85.8°F).

Temperature

December's weather displays an average high-temperature of a moderately hot 29.9°C (85.8°F), slightly varied from November's 30.2°C (86.4°F). Liyanagemulla in December experiences a low-temperature average of 23.7°C (74.7°F).

Heat index

For December, the heat index is calculated to be a very hot 37°C (98.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. 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.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in December in Liyanagemulla is 79%.

Rainfall

In Liyanagemulla, in December, it is raining for 20.3 days, with typically 139mm (5.47") of accumulated precipitation. In Liyanagemulla, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 06:07 and sunset at 17:51. On the last day of the month, sunrise is at 06:22 and sunset at 18:05 +0530.

Sunshine

In Liyanagemulla, the average sunshine in December is 7h.

UV index

January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 7 in December translates into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot does it get in Liyanagemulla in December?
The average high-temperature and low-temperature in Liyanagemulla during December are 29.9°C (85.8°F) and 23.7°C (74.7°F) respectively. In December, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 37°C (98.6°F).
What is the average humidity in December in Liyanagemulla?
In Liyanagemulla, Sri Lanka, the average relative humidity in December is 79%.
How much does it rain in Liyanagemulla in December?
In Liyanagemulla, during December, the rain falls for 20.3 days and regularly aggregates up to 139mm (5.47") of precipitation.
What is the month with the shortest days in Liyanagemulla?
With an average of 11h and 42min of daylight, December has the shortest days of the year in Liyanagemulla.
What is the average length of the day in December in Liyanagemulla?
In December, the average day length in Liyanagemulla, Sri Lanka, is 11h and 43min.
When is the sunrise / sunset in December in Liyanagemulla?
On the first day of December in Liyanagemulla, Sri Lanka, sunrise is at 06:07 and sunset at 17:51. On the last day of the month, sunrise is at 06:22 and sunset at 18:05 +0530.
How long on average sun shines in December in Liyanagemulla?
The average sunshine duration in December in Liyanagemulla, Sri Lanka, is 7h.
What are the months with the highest UV index in Liyanagemulla?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Liyanagemulla, Sri Lanka.
What is the UV index intensity in December in Liyanagemulla?
The average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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 - Liyanagemulla, Sri Lanka
Average temperature in December
Liyanagemulla, Sri Lanka
  • Average high temperature in December: 29.9°C

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).

  • Average low temperature in December: 23.7°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).

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

The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).

Average wind speed in December - Liyanagemulla, Sri Lanka
Average wind speed in December
Liyanagemulla, Sri Lanka
  • Average wind speed in December: 14.1km/h

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).

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

The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).

Average rainfall in December - Liyanagemulla, Sri Lanka
Average rainfall in December
Liyanagemulla, Sri Lanka
  • Average rainfall in December: 139mm

The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).

Average rainfall days in December - Liyanagemulla, Sri Lanka
Average rainfall days in December
Liyanagemulla, Sri Lanka
  • Average rainfall days in December: 20.3 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).

Average daylight in December / Average sunshine in December - Liyanagemulla, Sri Lanka
Average daylight in December /
Average sunshine in December
Liyanagemulla, 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: 7h and 0min

The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in December - Liyanagemulla, Sri Lanka
Average sunshine days in December
Liyanagemulla, Sri Lanka
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).

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

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

Average cloud cover in December - Liyanagemulla, Sri Lanka
Average cloud cover in December
Liyanagemulla, Sri Lanka
  • Average cloud cover in December: 36

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).

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

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

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