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 advent of December signifies a minor shift to an average high-temperature of a still warm 28.5°C (83.3°F), aligning closely with November. The month of December shows a minor drop from daytime temperatures, generally recording a low average of 25°C (77°F).Heat index
December's average heat index is estimated at a tropical 33°C (91.4°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
The months with the highest humidity in Mallavi are November and December, with an average relative humidity of 79%.Rainfall
In Mallavi, during December, the rain falls for 20.5 days and regularly aggregates up to 130mm (5.12") of precipitation. In Mallavi, Sri Lanka, during the entire year, the rain falls for 181.2 days and collects up to 849mm (33.43") of precipitation.Daylight
With an average of 11h and 36min of daylight, December has the shortest days of the year in Mallavi.On the first day of the month, sunrise is at 06:09 and sunset at 17:46. On the last day of December, sunrise is at 06:23 and sunset at 17:59 +0530.
Sunshine
The months with the least sunshine in Mallavi are November and December, with an average of 5.7h of sunshine.UV index
The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 7 during December morphs into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
How hot does it get in Mallavi in December?
What is the most humid month in Mallavi?
What is the average humidity in December in Mallavi?
How much does it rain in Mallavi in December?
What is the month with the shortest days in Mallavi?
What is the average length of the day in December in Mallavi?
What time are sunrise and sunset in December in Mallavi?
What is the month with the least sunshine in Mallavi?
How many hours of sunshine does Mallavi have in December?
When is the highest UV index in Mallavi?
What is the UV index intensity in December in Mallavi?
Average temperature in December
Mallavi, Sri Lanka
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is April (31.4°C).
The month with the lowest average high temperature is January (28.4°C).
- Average low temperature in December: 25°C
The month with the highest average low temperature is May (28.1°C).
The coldest month (with the lowest average low temperature) is February (23.9°C).
Average pressure in December
Mallavi, Sri Lanka
- Average pressure in December: 1010.8mbar
The month with the highest atmospheric pressure is January (1012.2mbar).
The month with the lowest atmospheric pressure is June (1006.5mbar).
Average wind speed in December
Mallavi, Sri Lanka
- Average wind speed in December: 20km/h
The windiest month (with the highest average wind speed) is June (32.4km/h).
The calmest month (with the lowest average wind speed) is April (15.4km/h).
Average humidity in December
Mallavi, Sri Lanka
- Average humidity in December: 79%
The months with the highest relative humidity are November and December (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in December
Mallavi, Sri Lanka
- Average rainfall in December: 130mm
The wettest month (with the highest rainfall) is November (207mm).
The driest month (with the least rainfall) is June (28mm).
Average rainfall days in December
Mallavi, Sri Lanka
- Average rainfall days in December: 20.5 days
The months with the highest number of rainy days are October and November (23.8 days).
The month with the least rainy days is February (9.1 days).
Average daylight in December /
Average sunshine in December
Mallavi, Sri Lanka
- Average daylight in December: 11h and 4min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 42min).
Average sunshine days in December
Mallavi, Sri Lanka
- Average sunshine days in December: 8 days
The month with the most sunshine days is March (19 days).
The month with the least sunshine days is November (4.4 days).
Average UV index in December
Mallavi, Sri Lanka
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 7).
The month with the lowest UV index is November (UV index 6).
Average cloud cover in December
Mallavi, Sri Lanka
- Average cloud cover in December: 44
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is March (Cloud cover 18).
Average visibility in December
Mallavi, Sri Lanka
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
Mallavi, Sri Lanka
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