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
The coldest time of the year is December, with temperatures averaging a high of 27.5°C (81.5°F) and a low of 19.5°C (67.1°F).Heat index
December's mean heat index is estimated at a hot 31°C (87.8°F). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
December is the most humid month, with an average relative humidity of 84%.Rainfall
In Haragama, in December, it is raining for 22.9 days, with typically 118mm (4.65") of accumulated precipitation. In Haragama, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.Daylight
December has the shortest days of the year in Haragama, with an average of 11h and 42min of daylight.On the first day of the month, sunrise is at 06:04 and sunset at 17:48. On the last day of December, in Haragama, Sri Lanka, sunrise is at 06:18 and sunset at 18:01 +0530.
Sunshine
The month with the least sunshine in Haragama is December, with an average of 5.7h of sunshine.UV index
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 6 suggests this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Haragama?
What is the temperature in December in Haragama?
What is the most humid month in Haragama?
What is the average humidity in December in Haragama?
How much does it rain in Haragama in December?
What is the month with the shortest days in Haragama?
What is the average length of the day in December in Haragama?
When are sunrise and sunset in December in Haragama?
What is the month with the least sunshine in Haragama?
How many hours of sunshine does Haragama have in December?
What are the months with the highest UV index in Haragama?
What is the UV index reading in December in Haragama?
Average temperature in December
Haragama, Sri Lanka
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).
- Average low temperature in December: 19.5°C
The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).
Average pressure in December
Haragama, Sri Lanka
- Average pressure in December: 1010.5mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).
Average wind speed in December
Haragama, Sri Lanka
- Average wind speed in December: 6.7km/h
The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).
Average humidity in December
Haragama, Sri Lanka
- Average humidity in December: 84%
The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).
Average rainfall in December
Haragama, Sri Lanka
- Average rainfall in December: 118mm
The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in December
Haragama, Sri Lanka
- Average rainfall days in December: 22.9 days
The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).
Average daylight in December /
Average sunshine in December
Haragama, 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: 5h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Haragama, Sri Lanka
- Average sunshine days in December: 6.8 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).
Average UV index in December
Haragama, Sri Lanka
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in December
Haragama, Sri Lanka
- Average cloud cover in December: 47
The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).
Average visibility in December
Haragama, Sri Lanka
- Average visibility in December: 8km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).
