December weather forecast
Nainativu, Sri Lanka

December

Weather in December

December, the first month of the winter in Nainativu, is also a moderately hot month, with temperature in the range of an average low of 26.1°C (79°F) and an average high of 27.5°C (81.5°F).

Temperature

Nainativu's average high-temperature in December is a still moderately hot 27.5°C (81.5°F), marking an insignificant difference from the 28.4°C (83.1°F) of November. December nights in Nainativu reveal a minor deviation from daytime highs, with a mean low-temperature of 26.1°C (79°F).

Heat index

During December, the heat index is computed to be a hot 31°C (87.8°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

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

Rainfall

In December, in Nainativu, Sri Lanka, the rain falls for 20 days. Throughout December, 140mm (5.51") of precipitation is accumulated. In Nainativu, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.

Daylight

The month with the shortest days in Nainativu is December, with an average of 11h and 36min of daylight.
On the first day of December, sunrise is at 06:11 and sunset at 17:48. On the last day of the month, sunrise is at 06:26 and sunset at 18:01 +0530.

Sunshine

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

UV index

The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 7 leads to the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What is the temperature in December in Nainativu?
An average high-temperature, in December, in Nainativu, is 27.5°C (81.5°F) and the average low-temperature is 26.1°C (79°F). 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 computed to be 31°C (87.8°F).
What is the average humidity in December in Nainativu?
The average relative humidity in December in Nainativu, Sri Lanka, is 78%.
How much does it rain in Nainativu in December?
In Nainativu, in December, it is raining for 20 days, with typically 140mm (5.51") of accumulated precipitation.
What is the month with the shortest days in Nainativu?
December has the shortest days of the year in Nainativu, with an average of 11h and 36min of daylight.
What is the average length of the day in December in Nainativu?
In Nainativu, the average day length in December is 11h and 35min.
What time are sunrise and sunset in December in Nainativu?
In December, on the first day of the month, sunrise is at 06:11 and sunset at 17:48. On the last day of the month, sunrise is at 06:26 and sunset at 18:01 +0530.
What is the month with the least sunshine in Nainativu?
December has the least sunshine of the year, with an average of 5.5h of sunshine.
How many hours of sunshine does Nainativu have in December?
The average sunshine duration in December in Nainativu, Sri Lanka, is 5.5h.
When is the highest UV index in Nainativu?
January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Nainativu, Sri Lanka.
How high is the UV index in December in Nainativu?
The average daily maximum UV index in December in Nainativu is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Nainativu, 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
Nainativu, 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
Nainativu, 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
Nainativu, 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
Nainativu, 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
Nainativu, 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
Nainativu, Sri Lanka
  • Average daylight in December: 11h and 4min

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 3min

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
Nainativu, 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
Nainativu, 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
Nainativu, 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
Nainativu, 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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