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
December reports an average high-temperature of a still moderately hot 28.4°C (83.1°F), slightly varied from November's 28.3°C (82.9°F). In December, Deraniyagala experiences a temperature dip to an average of 19.9°C (67.8°F) at night.Heat index
For most parts of December, the heat index is evaluated at a hot 34°C (93.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in December in Deraniyagala is 85%.Rainfall
In December, the rain falls for 25.6 days. Throughout December, 209mm (8.23") of precipitation is accumulated. In Deraniyagala, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.Daylight
December has the shortest days of the year in Deraniyagala, with an average of 11h and 42min of daylight.On the first day of December in Deraniyagala, Sri Lanka, sunrise is at 06:05 and sunset at 17:50. On the last day of the month, sunrise is at 06:19 and sunset at 18:03 +0530.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year in Deraniyagala.UV index
The months with the highest UV index are January through August, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
How hot does it get in Deraniyagala in December?
What is the average humidity in December in Deraniyagala?
How many days does it rain in December in Deraniyagala?
What is the month with the shortest days in Deraniyagala?
How many hours of daylight does Deraniyagala have in December?
When is the sunrise / sunset in December in Deraniyagala?
What is the month with the least sunshine in Deraniyagala?
How many hours of sunshine does Deraniyagala have in December?
When is the highest UV index in Deraniyagala?
What is the UV index intensity in December in Deraniyagala?
Average temperature in December
Deraniyagala, Sri Lanka
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°C).
- Average low temperature in December: 19.9°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 (18.7°C).
Average pressure in December
Deraniyagala, 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
Deraniyagala, Sri Lanka
- Average wind speed in December: 4.3km/h
The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).
Average humidity in December
Deraniyagala, Sri Lanka
- Average humidity in December: 85%
The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).
Average rainfall in December
Deraniyagala, Sri Lanka
- Average rainfall in December: 209mm
The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in December
Deraniyagala, Sri Lanka
- Average rainfall days in December: 25.6 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).
Average daylight in December /
Average sunshine in December
Deraniyagala, 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: 6h and 0min
The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Deraniyagala, Sri Lanka
- Average sunshine days in December: 3.6 days
The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).
Average UV index in December
Deraniyagala, Sri Lanka
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
The months with the lowest UV index are September and October (UV index 5).
Average cloud cover in December
Deraniyagala, Sri Lanka
- Average cloud cover in December: 47
The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).
Average visibility in December
Deraniyagala, Sri Lanka
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).
Deraniyagala, Sri Lanka
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