Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The coldest time of the year is December, with temperatures averaging a high of 28.6°C (83.5°F) and a low of 20.4°C (68.7°F).Heat index
December's heat index is calculated to be a tropical 34°C (93.2°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
The most humid month is December, with an average relative humidity of 83%.Rainfall
In Batagolladeniya, Sri Lanka, in December, it is raining for 20.9 days, with typically 113mm (4.45") of accumulated precipitation. Throughout the year, there are 217.7 rainfall days, and 1165mm (45.87") 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 06:05 and sunset at 17:48. On the last day of December, in Batagolladeniya, sunrise is at 06:19 and sunset at 18:01 +0530.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year.UV index
January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Batagolladeniya. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 6 in December interprets into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Batagolladeniya?
How hot does it get in Batagolladeniya in December?
What is the most humid month in Batagolladeniya?
What is the average humidity in December in Batagolladeniya?
How much does it rain in Batagolladeniya in December?
What is the month with the shortest days in Batagolladeniya?
How many hours of daylight does Batagolladeniya have in December?
When is the sunrise / sunset in December in Batagolladeniya?
What is the month with the least sunshine in Batagolladeniya?
How many hours of sunshine does Batagolladeniya have in December?
When is the lowest UV index in Batagolladeniya?
What is the UV index intensity in December in Batagolladeniya?
Average temperature in December
Batagolladeniya, Sri Lanka
- Average high temperature in December: 28.6°C
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
- Average low temperature in December: 20.4°C
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure in December
Batagolladeniya, Sri Lanka
- Average pressure in December: 1010.5mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed in December
Batagolladeniya, Sri Lanka
- Average wind speed in December: 7.8km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in December
Batagolladeniya, Sri Lanka
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).
Average rainfall in December
Batagolladeniya, Sri Lanka
- Average rainfall in December: 113mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in December
Batagolladeniya, Sri Lanka
- Average rainfall days in December: 20.9 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight in December /
Average sunshine in December
Batagolladeniya, 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: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Batagolladeniya, Sri Lanka
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index in December
Batagolladeniya, Sri Lanka
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in December
Batagolladeniya, Sri Lanka
- Average cloud cover in December: 46
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility in December
Batagolladeniya, Sri Lanka
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
Batagolladeniya, Sri Lanka
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