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
December's arrival brings an average high-temperature of a still warm 28.4°C (83.1°F), slightly deviating from November's 28.3°C (82.9°F). December in Kahawatta is noted for a mean low-temperature of 19.9°C (67.8°F).Heat index
December's heat index is computed to be a hot 34°C (93.2°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. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In Kahawatta, the average relative humidity in December is 85%.Rainfall
In Kahawatta, in December, it is raining for 25.6 days, with typically 209mm (8.23") of accumulated precipitation. In Kahawatta, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.Daylight
With an average of 11h and 48min of daylight, December has the shortest days of the year in Kahawatta.On the first day of December, sunrise is at 06:03 and sunset at 17:49. On the last day of the month, sunrise is at 06:18 and sunset at 18:03 +0530.
Sunshine
The month with the least sunshine is December, with an average of 6h of sunshine.UV index
The months with the highest UV index in Kahawatta, Sri Lanka, are January through August, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 6 in December suggests the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Kahawatta in December?
What is the average humidity in December in Kahawatta?
How many days does it rain in December in Kahawatta?
What is the month with the shortest days in Kahawatta?
What is the average length of the day in December in Kahawatta?
When are sunrise and sunset in December in Kahawatta?
What is the month with the least sunshine in Kahawatta?
How many hours of sunshine does Kahawatta have in December?
What are the months with the highest UV index in Kahawatta?
How high is the UV index in December in Kahawatta?
Average temperature in December
Kahawatta, Sri Lanka
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°C).
- Average low temperature in December: 19.9°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 (18.7°C).
Average pressure in December
Kahawatta, Sri Lanka
- Average pressure in December: 1010.4mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in December
Kahawatta, Sri Lanka
- Average wind speed in December: 4.3km/h
The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).
Average humidity in December
Kahawatta, Sri Lanka
- Average humidity in December: 85%
The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).
Average rainfall in December
Kahawatta, Sri Lanka
- Average rainfall in December: 209mm
The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in December
Kahawatta, Sri Lanka
- Average rainfall days in December: 25.6 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).
Average daylight in December /
Average sunshine in December
Kahawatta, Sri Lanka
- Average daylight in December: 11h and 5min
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 48min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Kahawatta, Sri Lanka
- Average sunshine days in December: 3.6 days
The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).
Average UV index in December
Kahawatta, Sri Lanka
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
The months with the lowest UV index are September and October (UV index 5).
Average cloud cover in December
Kahawatta, Sri Lanka
- Average cloud cover in December: 47
The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).
Average visibility in December
Kahawatta, Sri Lanka
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).
