December weather forecast
Maggona, Sri Lanka

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Maggona, Sri Lanka, with temperature in the range of an average high of 29.7°C (85.5°F) and an average low of 24.4°C (75.9°F).

Temperature

Transitioning into December, Maggona experiences an average high-temperature of a still warm 29.7°C (85.5°F), marking a minor shift from the preceding month. During December, the average low-temperature is recorded at a still moderately hot 24.4°C (75.9°F).

Heat index

December's average heat index is estimated at a very hot 36°C (96.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Maggona, the average relative humidity in December is 79%.

Rainfall

In December, the rain falls for 16.5 days. Throughout December, 93mm (3.66") of precipitation is accumulated. In Maggona, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Daylight

The month with the shortest days in Maggona is December, with an average of 11h and 48min of daylight.
On the first day of December, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, sunrise is at 06:20 and sunset at 18:05 +0530.

Sunshine

The average sunshine in December is 7.1h.

UV index

The months with the highest UV index in Maggona are January through April, July, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 7 during December translates into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

How hot is December in Maggona?
In Maggona, 29.7°C (85.5°F) is the average high-temperature and 24.4°C (75.9°F) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in December is estimated at 36°C (96.8°F).
What is the average humidity in December in Maggona?
The average relative humidity in December in Maggona, Sri Lanka, is 79%.
How many days does it rain in December in Maggona?
In Maggona, Sri Lanka, in December, during 16.5 rainfall days, 93mm (3.66") of precipitation is typically accumulated.
What is the month with the shortest days in Maggona?
The month with the shortest days in Maggona is December, with an average of 11h and 48min of daylight.
What is the average length of the day in December in Maggona?
In December, the average day length in Maggona, Sri Lanka, is 11h and 45min.
What time are sunrise and sunset in December in Maggona?
On the first day of December, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, sunrise is at 06:20 and sunset at 18:05 +0530.
How long on average sun shines in December in Maggona?
In Maggona, the average sunshine duration in December is 7.1h.
What is the month with the highest UV index in Maggona?
The months with the highest UV index are January through April, July, September through December, with an average maximum UV index of 7.
How high is the UV index in December in Maggona?
The average daily maximum UV index in December in Maggona, Sri Lanka, is 7. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Maggona, Sri Lanka
Average temperature in December
Maggona, Sri Lanka
  • Average high temperature in December: 29.7°C

The warmest months (with the highest average high temperature) are March and April (31.3°C).
The month with the lowest average high temperature is August (28.6°C).

  • Average low temperature in December: 24.4°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.4°C).

Average pressure in December - Maggona, Sri Lanka
Average pressure in December
Maggona, 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 (1008.7mbar).

Average wind speed in December - Maggona, Sri Lanka
Average wind speed in December
Maggona, Sri Lanka
  • Average wind speed in December: 11.3km/h

The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (7.9km/h).

Average humidity in December - Maggona, Sri Lanka
Average humidity in December
Maggona, Sri Lanka
  • Average humidity in December: 79%

The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (75%).

Average rainfall in December - Maggona, Sri Lanka
Average rainfall in December
Maggona, Sri Lanka
  • Average rainfall in December: 93mm

The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).

Average rainfall days in December - Maggona, Sri Lanka
Average rainfall days in December
Maggona, Sri Lanka
  • Average rainfall days in December: 16.5 days

The months with the highest number of rainy days are July and August (29.5 days).
The month with the least rainy days is January (8.9 days).

Average daylight in December / Average sunshine in December - Maggona, Sri Lanka
Average daylight in December /
Average sunshine in December
Maggona, Sri Lanka
  • Average daylight in December: 11h and 5min

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 48min).

  • Average sunshine in December: 7h and 1min

The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).

Average sunshine days in December - Maggona, Sri Lanka
Average sunshine days in December
Maggona, Sri Lanka
  • Average sunshine days in December: 12.5 days

The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and July (0.3 days).

Average UV index in December - Maggona, Sri Lanka
Average UV index in December
Maggona, Sri Lanka
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, July, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June and August (UV index 6).

Average cloud cover in December - Maggona, Sri Lanka
Average cloud cover in December
Maggona, Sri Lanka
  • Average cloud cover in December: 37

The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in December - Maggona, Sri Lanka
Average visibility in December
Maggona, Sri Lanka
  • Average visibility in December: 10km

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

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