December weather forecast
Mahagoda, Sri Lanka

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Weather in December

The first month of the winter, December, is also a moderately hot month in Mahagoda, Sri Lanka, with an average temperature varying between 23.8°C (74.8°F) and 29.9°C (85.8°F).

Temperature

As Mahagoda transitions from November to December, the average high-temperatures adjust to a still warm 29.9°C (85.8°F), nearly the same as the previous 29.8°C (85.6°F). Throughout December, Mahagoda witnesses a nighttime temperature average of 23.8°C (74.8°F).

Heat index

The heat index value for December is evaluated at a sweltering 37°C (98.6°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Mahagoda, in December, during 17.5 rainfall days, 48mm (1.89") of precipitation is typically accumulated. In Mahagoda, Sri Lanka, during the entire year, the rain falls for 181.4 days and collects up to 526mm (20.71") of precipitation.

Daylight

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

Sunshine

With an average of 6.9h of sunshine, December has the least sunshine of the year.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Mahagoda. The months with the lowest UV index in Mahagoda are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

Is it hot in Mahagoda during December?

In Mahagoda, 29.9°C (85.8°F) is the average high-temperature and 23.8°C (74.8°F) is the average low-temperature during December. In December, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 37°C (98.6°F).

What is the average humidity in December in Mahagoda?

The average relative humidity in December is 80%.

How much does it rain in Mahagoda in December?

In Mahagoda, Sri Lanka, in December, during 17.5 rainfall days, 48mm (1.89") of precipitation is typically accumulated.

What is the month with the shortest days in Mahagoda?

December has the shortest days of the year in Mahagoda, with an average of 11h and 48min of daylight.

What is the average length of the day in December in Mahagoda?

In Mahagoda, the average day length in December is 11h and 46min.

What time are sunrise and sunset in December in Mahagoda?

In December, on the first day of the month, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, in Mahagoda, Sri Lanka, sunrise is at 06:20 and sunset at 18:05 +0530.

What is the month with the least sunshine in Mahagoda?

December has the least sunshine of the year in Mahagoda, with an average of 6.9h of sunshine.

How long on average sun shines in December in Mahagoda?

The average sunshine duration in December is 6.9h.

When is the highest UV index in Mahagoda?

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

What is the month with the lowest UV index in Mahagoda?

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

What is the UV index reading in December in Mahagoda?

The average daily maximum UV index in December in Mahagoda is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in December
Mahagoda, Sri Lanka

Average temperature in December - Mahagoda, Sri Lanka
  • Average high temperature in December: 29.9°C

The warmest months (with the highest average high temperature) are March and April (31.1°C).
The month with the lowest average high temperature is September (29.1°C).

  • Average low temperature in December: 23.8°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°C).

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Average pressure in December
Mahagoda, Sri Lanka

Average pressure in December - Mahagoda, Sri Lanka
  • Average pressure in December: 1010.2mbar

The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).

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Average wind speed in December
Mahagoda, Sri Lanka

Average wind speed in December - Mahagoda, Sri Lanka
  • Average wind speed in December: 9.6km/h

The windiest month (with the highest average wind speed) is July (18.9km/h).
The calmest month (with the lowest average wind speed) is January (9km/h).

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Average humidity in December
Mahagoda, Sri Lanka

Average humidity in December - Mahagoda, Sri Lanka
  • Average humidity in December: 80%

The months with the highest relative humidity are May, September and November (81%).
The months with the lowest relative humidity are January and February (77%).

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Average rainfall in December
Mahagoda, Sri Lanka

Average rainfall in December - Mahagoda, Sri Lanka
  • Average rainfall in December: 48mm

The wettest month (with the highest rainfall) is November (66mm).
The driest month (with the least rainfall) is January (22mm).

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Average rainfall days in December
Mahagoda, Sri Lanka

Average rainfall days in December - Mahagoda, Sri Lanka
  • Average rainfall days in December: 17.5 days

The month with the highest number of rainy days is November (19.8 days).
The month with the least rainy days is June (10.7 days).

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

Average daylight in December / Average sunshine in December - Mahagoda, 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: 6h and 5min

The month with the most sunshine is April (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

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Average sunshine days in December
Mahagoda, Sri Lanka

Average sunshine days in December - Mahagoda, Sri Lanka
  • Average sunshine days in December: 11.2 days

The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is November (7.8 days).

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Average UV index in December
Mahagoda, Sri Lanka

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

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Average cloud cover in December
Mahagoda, Sri Lanka

Average cloud cover in December - Mahagoda, Sri Lanka
  • Average cloud cover in December: 38

The month with the most cloud cover is June (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 26).

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Average visibility in December
Mahagoda, Sri Lanka

Average visibility in December - Mahagoda, 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).

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Mahagoda, Sri Lanka

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