December weather forecastMalwala, Sri Lanka

December

Weather in December

December, the first month of the winter in Malwala, is also a moderately hot month, with temperature in the range of an average low of 19.9°C (67.8°F) and an average high of 28.4°C (83.1°F).

Temperature

December's onset records a minor alteration in the average high-temperature to a still moderately hot 28.4°C (83.1°F) from November's 28.3°C (82.9°F). During December, Malwala experiences an average low-temperature of 19.9°C (67.8°F) at night.

Heat index

For December, the heat index is appraised at a hot 34°C (93.2°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

The average relative humidity in December is 85%.

Rainfall

In December, the rain falls for 25.6 days. Throughout December, 209mm (8.23") of precipitation is accumulated. Throughout the year, in Malwala, there are 317.3 rainfall days, and 2422mm (95.35") of precipitation is accumulated.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year in Malwala, Sri Lanka.
On the first day of the month, sunrise is at 06:04 and sunset at 17:50. On the last day of December, in Malwala, sunrise is at 06:19 and sunset at 18:03 +0530.

Sunshine

The month with the least sunshine is December, with an average of 6h of sunshine.

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 reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 6 transforms into these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Updated: Feb 6, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Malwala, Sri Lanka, during December is 28.4°C (83.1°F) and the low-temperature is 19.9°C (67.8°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 34°C (93.2°F).

In Malwala, the average relative humidity in December is 85%.

In Malwala, Sri Lanka, in December, during 25.6 rainfall days, 209mm (8.23") of precipitation is typically accumulated.

The month with the shortest days is December, with an average of 11h and 42min of daylight.

The average day length in December in Malwala is 11h and 44min.

On the first day of December, sunrise is at 06:04 and sunset at 17:50. On the last day of the month, sunrise is at 06:19 and sunset at 18:03 +0530.

The month with the least sunshine is December, with an average of 6h of sunshine.

In Malwala, Sri Lanka, the average sunshine duration in December is 6h.

January through August, November and December, with an average maximum UV index of 6, are months with the highest UV index in Malwala.

In December, the average daily maximum UV index in Malwala is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

28.3°C

28.4°C

29.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.6km/h

4.8km/h

4.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

1.8

3.6

9.2

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Malwala, 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
Malwala, 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
Malwala, 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
Malwala, 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
Malwala, 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
Malwala, 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
Malwala, Sri Lanka

Average daylight in December: 11h and 42min

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
Malwala, 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
Malwala, 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
Malwala, 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
Malwala, 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).