December weather forecast
Angulana, Sri Lanka

December

Weather in December

December, the first month of the winter in Angulana, is also a moderately hot month, with temperature in the range of an average high of 29.7°C (85.5°F) and an average low of 24.1°C (75.4°F).

Temperature

Angulana's shift into December is marked by a subtle change to a moderately hot 29.7°C (85.5°F) from November's 30°C (86°F) in temperature. Angulana, in December, observes a steady average low-temperature of 24.1°C (75.4°F).

Heat index

Throughout December, the heat index is evaluated at a fiery hot 36°C (96.8°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in December is 79%.

Rainfall

In Angulana, in December, during 19.9 rainfall days, 124mm (4.88") of precipitation is typically accumulated. Throughout the year, in Angulana, Sri Lanka, there are 272.3 rainfall days, and 2039mm (80.28") of precipitation is accumulated.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:06 and sunset at 17:52. On the last day of December, sunrise is at 06:21 and sunset at 18:05 +0530.

Sunshine

In December, the average sunshine in Angulana 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 in Angulana. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

Is it hot in Angulana during December?
In December, the average high-temperature and low-temperature in Angulana, Sri Lanka, are 29.7°C (85.5°F) and 24.1°C (75.4°F) respectively. In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 36°C (96.8°F).
What is the average humidity in December in Angulana?
In December, the average relative humidity in Angulana is 79%.
How many days does it rain in December in Angulana?
In December, in Angulana, the rain falls for 19.9 days. Throughout December, 124mm (4.88") of precipitation is accumulated.
What is the month with the shortest days in Angulana?
December has the shortest days of the year in Angulana, Sri Lanka, with an average of 11h and 42min of daylight.
What is the average length of the day in December in Angulana?
The average day length in December in Angulana, Sri Lanka, is 11h and 44min.
When are sunrise and sunset in December in Angulana?
On the first day of December, sunrise is at 06:06 and sunset at 17:52. On the last day of the month, sunrise is at 06:21 and sunset at 18:05 +0530.
How many hours of sunshine does Angulana have in December?
In Angulana, the average sunshine duration in December is 7h.
When is the highest UV index in Angulana?
The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7.
What is the UV index reading in December in Angulana?
The average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Angulana, Sri Lanka
  • Average high temperature in December: 29.7°C

The warmest months (with the highest average high temperature) are March and April (31.4°C).
The month with the lowest average high temperature is August (28.6°C).

  • Average low temperature in December: 24.1°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 (23.3°C).

Average pressure in December
Angulana, 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).

Average wind speed in December
Angulana, Sri Lanka
  • Average wind speed in December: 11.6km/h

The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).

Average humidity in December
Angulana, Sri Lanka
  • Average humidity in December: 79%

The months with the highest relative humidity are June, July and August (83%).
The month with the lowest relative humidity is January (74%).

Average rainfall in December
Angulana, Sri Lanka
  • Average rainfall in December: 124mm

The wettest month (with the highest rainfall) is June (329mm).
The driest month (with the least rainfall) is January (37mm).

Average rainfall days in December
Angulana, Sri Lanka
  • Average rainfall days in December: 19.9 days

The month with the highest number of rainy days is August (29.8 days).
The month with the least rainy days is January (11.2 days).

Average daylight in December /
Average sunshine in December
Angulana, 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 month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in December
Angulana, Sri Lanka
  • Average sunshine days in December: 8.9 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is July (0.4 days).

Average UV index in December
Angulana, 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
Angulana, Sri Lanka
  • Average cloud cover in December: 37

The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in December
Angulana, Sri Lanka
  • Average visibility in December: 10km

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

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