December weather forecastAraly, Sri Lanka

December

Weather in December

December, the first month of the winter in Araly, is still a warm month, with an average temperature fluctuating between 26.1°C (79°F) and 27.5°C (81.5°F).

Temperature

The arrival of December sees a recorded average high-temperature of a still moderately hot 27.5°C (81.5°F), showing little divergence from the previous month's conditions. Registering an almost steady temperature, Araly's nights in December see an average low of 26.1°C (79°F).

Heat index

For December, the heat index is appraised at a hot 31°C (87.8°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In December, the average relative humidity in Araly is 78%.

Rainfall

In Araly, Sri Lanka, during December, the rain falls for 20 days and regularly aggregates up to 140mm (5.51") of precipitation. In Araly, Sri Lanka, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.

Daylight

With an average of 11h and 36min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 06:11 and sunset at 17:47. On the last day of the month, sunrise is at 06:26 and sunset at 18:00 +0530.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year in Araly.

UV index

January through October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 in December translates into these instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

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

Frequently asked questions

During December, Araly experiences an average high-temperature of 27.5°C (81.5°F) and a low-temperature of 26.1°C (79°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in December is appraised at 31°C (87.8°F).

The average relative humidity in December is 78%.

In Araly, in December, it is raining for 20 days, with typically 140mm (5.51") of accumulated precipitation.

With an average of 11h and 36min of daylight, December has the shortest days of the year in Araly.

The average day length in December is 11h and 34min.

On the first day of December in Araly, Sri Lanka, sunrise is at 06:11 and sunset at 17:47. On the last day of the month, sunrise is at 06:26 and sunset at 18:00 +0530.

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

In December, the average sunshine duration in Araly, Sri Lanka, is 5.5h.

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

In Araly, Sri Lanka, the average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability 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

28.4°C

27.5°C

26.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

19.9km/h

23.7km/h

23.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

6.3

15.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Araly, Sri Lanka

Average high temperature in December: 27.5°C

The warmest month (with the highest average high temperature) is April (30.4°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
Araly, Sri Lanka

Average pressure in December: 1010.9mbar

The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.9mbar).

Average wind speed in December
Araly, Sri Lanka

Average wind speed in December: 23.1km/h

The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).

Average humidity in December
Araly, Sri Lanka

Average humidity in December: 78%

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

Average rainfall in December
Araly, Sri Lanka

Average rainfall in December: 140mm

The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).

Average rainfall days in December
Araly, Sri Lanka

Average rainfall days in December: 20 days

The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).

Average daylight in December /
Average sunshine in December
Araly, 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 month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Araly, Sri Lanka

Average sunshine days in December: 7 days

The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).

Average UV index in December
Araly, 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
Araly, 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
Araly, Sri Lanka

Average visibility in December: 10km

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