December weather forecastUduthurai, Sri Lanka

December

Weather in December

December, the first month of the winter in Uduthurai, is also a moderately hot month, with temperature in the range of an average high of 27.3°C (81.1°F) and an average low of 26.1°C (79°F).

Temperature

December's weather displays an average high-temperature of a still moderately hot 27.3°C (81.1°F), slightly varied from November's 28.3°C (82.9°F). Uduthurai notes a steady average temperature of 26.1°C (79°F) during the nights of December.

Heat index

December's average heat index is appraised at a tropical 30°C (86°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Uduthurai, in December, during 21.8 rainfall days, 192mm (7.56") of precipitation is typically accumulated. Throughout the year, there are 189.6 rainfall days, and 1106mm (43.54") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 36min of daylight.
On the first day of December, sunrise is at 06:09 and sunset at 17:45. On the last day of the month, sunrise is at 06:24 and sunset at 17:58 +0530.

Sunshine

December has the least sunshine of the year, with an average of 5.5h of sunshine.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Updated: Jun 15, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Uduthurai, is 27.3°C (81.1°F), while the low-temperature averages to 26.1°C (79°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in December is appraised at 30°C (86°F).

The average relative humidity in December is 78%.

In Uduthurai, in December, during 21.8 rainfall days, 192mm (7.56") of precipitation is typically accumulated.

The month with the shortest days is December, with an average of 11h and 36min of daylight.

In Uduthurai, Sri Lanka, the average day length in December is 11h and 35min.

In December, on the first day of the month, sunrise is at 06:09 and sunset at 17:45. On the last day of the month, sunrise is at 06:24 and sunset at 17:58 +0530.

The month with the least sunshine in Uduthurai is December, with an average of 5.5h of sunshine.

In December, the average sunshine duration is 5.5h.

January through September and December, with an average maximum UV index of 7, are months with the highest UV index.

In December, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.

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

27.3°C

26.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

20.1km/h

24km/h

23.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

3.8

5.5

13.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Uduthurai, Sri Lanka

Average high temperature in December: 27.3°C

The warmest month (with the highest average high temperature) is May (30.7°C).
The month with the lowest average high temperature is January (26.8°C).

Average low temperature in December: 26.1°C

The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).

Average pressure in December
Uduthurai, Sri Lanka

Average pressure in December: 1011mbar

The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.8mbar).

Average wind speed in December
Uduthurai, Sri Lanka

Average wind speed in December: 23.4km/h

The windiest month (with the highest average wind speed) is June (32.9km/h).
The calmest month (with the lowest average wind speed) is April (16.3km/h).

Average humidity in December
Uduthurai, Sri Lanka

Average humidity in December: 78%

The months with the highest relative humidity are May and September (79%).
The month with the lowest relative humidity is March (75%).

Average rainfall in December
Uduthurai, Sri Lanka

Average rainfall in December: 192mm

The wettest months (with the highest rainfall) are October and November (257mm).
The driest month (with the least rainfall) is March (18mm).

Average rainfall days in December
Uduthurai, Sri Lanka

Average rainfall days in December: 21.8 days

The month with the highest number of rainy days is October (25.1 days).
The months with the least rainy days are February and March (7.6 days).

Average daylight in December /
Average sunshine in December
Uduthurai, Sri Lanka

Average daylight in December: 11h and 36min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).

Average sunshine in December: 5h and 30min

The months with the most sunshine are May and June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Uduthurai, Sri Lanka

Average sunshine days in December: 5.5 days

The month with the most sunshine days is March (21.2 days).
The month with the least sunshine days is November (3.8 days).

Average UV index in December
Uduthurai, 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 and December (UV index 7).
The months with the lowest UV index are October and November (UV index 6).

Average cloud cover in December
Uduthurai, Sri Lanka

Average cloud cover in December: 47

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).

Average visibility in December
Uduthurai, Sri Lanka

Average visibility in December: 10km

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