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, having an average high-temperature of 27.5°C (81.5°F) and an average low-temperature of 19.5°C (67.1°F), is the coldest month.Heat index
The heat index value during December is estimated at a tropical 31°C (87.8°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Always consider that heat index estimations are for light winds and places in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising 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
The most humid month in Wattappola is December, with an average relative humidity of 84%.Rainfall
In Wattappola, during December, the rain falls for 22.9 days and regularly aggregates up to 118mm (4.65") of precipitation. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.Daylight
The month with the shortest days is December, 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 Wattappola, sunrise is at 06:19 and sunset at 18:02 +0530.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year.UV index
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Wattappola. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Wattappola?
What is the usual temperature for Wattappola in December?
What is the most humid month in Wattappola?
What is the average humidity in December in Wattappola?
How much does it rain in Wattappola in December?
What is the month with the shortest days in Wattappola?
How many hours of daylight does Wattappola have in December?
When is the sunrise / sunset in December in Wattappola?
What is the month with the least sunshine in Wattappola?
How many hours of sunshine does Wattappola have in December?
What is the month with the highest UV index in Wattappola?
What is the UV index reading in December in Wattappola?
Average temperature in December
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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
Wattappola, 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).
