December weather forecast
Narammala, Sri Lanka

December

Weather in December

December, the first month of the winter in Narammala, is also a moderately hot month, with an average temperature ranging between min 23.7°C (74.7°F) and max 29.9°C (85.8°F).

Temperature

Narammala's December reports an average high-temperature of a warm 29.9°C (85.8°F), exhibiting a minor difference from November. Throughout December, Narammala witnesses a consistent average low-temperature of 23.7°C (74.7°F).

Heat index

December's average heat index is computed to be a sweltering 37°C (98.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. 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 particularly relevant to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Narammala, Sri Lanka, in December, during 20.3 rainfall days, 139mm (5.47") of precipitation is typically accumulated. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

The month with the shortest days in Narammala is December, with an average of 11h and 42min of daylight.
On the first day of the month, sunrise is at 06:06 and sunset at 17:49. On the last day of December, in Narammala, sunrise is at 06:21 and sunset at 18:03 +0530.

Sunshine

The average sunshine in December is 7h.

UV index

The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the UV index of 7 transforms into the following advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

How hot does it get in Narammala in December?
The high-temperature, in December, in Narammala, records 29.9°C (85.8°F), while the low-temperature is 23.7°C (74.7°F). In December, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 37°C (98.6°F).
What is the average humidity in December in Narammala?
The average relative humidity in December is 79%.
How much does it rain in Narammala in December?
In December, in Narammala, Sri Lanka, the rain falls for 20.3 days. Throughout December, 139mm (5.47") of precipitation is accumulated.
What is the month with the shortest days in Narammala?
With an average of 11h and 42min of daylight, December has the shortest days of the year in Narammala, Sri Lanka.
What is the average length of the day in December in Narammala?
The average day length in December in Narammala is 11h and 42min.
When is the sunrise / sunset in December in Narammala?
On the first day of December, sunrise is at 06:06 and sunset at 17:49. On the last day of the month, sunrise is at 06:21 and sunset at 18:03 +0530.
How long on average sun shines in December in Narammala?
In December, the average sunshine duration in Narammala, Sri Lanka, is 7h.
What is the month with the highest UV index in Narammala?
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Narammala.
What is the UV index reading in December in Narammala?
The average daily maximum UV index in December is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
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
Narammala, Sri Lanka
  • Average high temperature in December: 29.9°C

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).

  • Average low temperature in December: 23.7°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).

Average pressure in December
Narammala, Sri Lanka
  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).

Average wind speed in December
Narammala, Sri Lanka
  • Average wind speed in December: 14.1km/h

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).

Average humidity in December
Narammala, Sri Lanka
  • Average humidity in December: 79%

The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).

Average rainfall in December
Narammala, Sri Lanka
  • Average rainfall in December: 139mm

The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).

Average rainfall days in December
Narammala, Sri Lanka
  • Average rainfall days in December: 20.3 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).

Average daylight in December /
Average sunshine in December
Narammala, Sri Lanka
  • Average daylight in December: 11h and 4min

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 42min).

  • Average sunshine in December: 7h and 0min

The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).

Average sunshine days in December
Narammala, Sri Lanka
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).

Average UV index in December
Narammala, Sri Lanka
  • Average UV index in December: 7

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

Average cloud cover in December
Narammala, Sri Lanka
  • Average cloud cover in December: 36

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).

Average visibility in December
Narammala, Sri Lanka
  • Average visibility in December: 10km

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

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