December weather forecastKarainagar, Sri Lanka
December weather for Karainagar, Sri Lanka: The first month of the winter, December, is also a moderately hot month in Karainagar, Sri Lanka, 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). The month with the least sunshine in Karainagar, Sri Lanka, is December, with an average of 5.5h of sunshine.
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Karainagar, Sri Lanka, 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
The initiation of December records an average high-temperature of a still moderately hot 27.5°C (81.5°F), displaying a near consistency with the previous month. During December, Karainagar's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 26.1°C (79°F).Heat index
The heat index value during December is appraised at a hot 31°C (87.8°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Data suggests that the heat index is set for environments in shade and with a 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 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important 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.
Humidity
In December, the average relative humidity is 78%.Rainfall
In Karainagar, in December, during 20 rainfall days, 140mm (5.51") of precipitation is typically accumulated. In Karainagar, Sri Lanka, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.Daylight
December has the shortest days of the year in Karainagar, with an average of 11h and 36min of daylight.On the first day of the month, sunrise is at 06:11 and sunset at 17:47. On the last day of December, sunrise is at 06:26 and sunset at 18:00 +0530.
Sunshine
The month with the least sunshine in Karainagar, Sri Lanka, is December, with an average of 5.5h of sunshine.UV index
The months with the highest UV index in Karainagar, Sri Lanka, are January through October and 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 average individuals.Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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
Karainagar, 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).





