Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Entering December, the average high-temperature is recorded at a still moderately hot 27.5°C (81.5°F), exhibiting a minimal shift from November's 28.4°C (83.1°F). Chavakachcheri experiences a subtle drop in temperature during the December nights, recording an average of 26.1°C (79°F).Heat index
December's mean heat index is estimated at a hot 31°C (87.8°F). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index 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.
Humidity
In December, the average relative humidity in Chavakachcheri, Sri Lanka, is 78%.Rainfall
In Chavakachcheri, Sri Lanka, in December, during 20 rainfall days, 140mm (5.51") of precipitation is typically accumulated. In Chavakachcheri, Sri Lanka, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.Daylight
With an average of 11h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:10 and sunset at 17:46. On the last day of the month, sunrise is at 06:25 and sunset at 17:59 +0530.
Sunshine
With an average of 5.5h of sunshine, December has the least sunshine of the year.UV index
January through October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 7 during December translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Chavakachcheri?
What is the average humidity in December in Chavakachcheri?
How many days does it rain in December in Chavakachcheri?
What is the month with the shortest days in Chavakachcheri?
What is the average length of the day in December in Chavakachcheri?
What time are sunrise and sunset in December in Chavakachcheri?
What is the month with the least sunshine in Chavakachcheri?
How long on average sun shines in December in Chavakachcheri?
When is the highest UV index in Chavakachcheri?
What is the UV index intensity in December in Chavakachcheri?
Average temperature in December
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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
Chavakachcheri, 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).
