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 month is December, with an average high-temperature of 24.3°C (75.7°F) and an average low-temperature of 17°C (62.6°F).Humidity
In December, the average relative humidity in Keppetipola is 88%.Rainfall
In Keppetipola, in December, it is raining for 25.4 days, with typically 228mm (8.98") of accumulated precipitation. Throughout the year, there are 297.4 rainfall days, and 2784mm (109.61") of precipitation is accumulated.Daylight
With an average of 11h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:03 and sunset at 17:48. On the last day of December, sunrise is at 06:17 and sunset at 18:01 +0530.
Sunshine
With an average of 4.6h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, October through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 5 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What are the temperatures in December?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Keppetipola, Sri Lanka
- Average high temperature in December: 24.3°C
The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).
- Average low temperature in December: 17°C
The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).
Average pressure in December
Keppetipola, Sri Lanka
- Average pressure in December: 1010.4mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in December
Keppetipola, Sri Lanka
- Average wind speed in December: 5km/h
The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).
Average humidity in December
Keppetipola, Sri Lanka
- Average humidity in December: 88%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).
Average rainfall in December
Keppetipola, Sri Lanka
- Average rainfall in December: 228mm
The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in December
Keppetipola, Sri Lanka
- Average rainfall days in December: 25.4 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (16.3 days).
Average daylight in December /
Average sunshine in December
Keppetipola, 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: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Keppetipola, Sri Lanka
- Average sunshine days in December: 4.5 days
The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).
Average UV index in December
Keppetipola, Sri Lanka
- Average UV index in December: 5
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, October, November and December (UV index 5).
Average cloud cover in December
Keppetipola, Sri Lanka
- Average cloud cover in December: 62
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in December
Keppetipola, Sri Lanka
- Average visibility in December: 6km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).
