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, with its average high-temperature of 24.3°C (75.7°F) and an average low-temperature of 17°C (62.6°F), holds the record as the coldest month.Humidity
In Passara, Sri Lanka, the average relative humidity in December is 88%.Rainfall
In Passara, in December, during 25.4 rainfall days, 228mm (8.98") of precipitation is typically accumulated. In Passara, during the entire year, the rain falls for 297.4 days and collects up to 2784mm (109.61") of precipitation.Daylight
With an average of 11h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:01 and sunset at 17:47. On the last day of the month, sunrise is at 06:16 and sunset at 18:00 +0530.
Sunshine
With an average of 4.6h of sunshine, December has the least sunshine of the year in Passara.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 estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 5 suggests these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What is the temperature in December?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Passara have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Passara have in December?
What is the month with the lowest UV index?
How high is the UV index in December in Passara?
Average temperature in December
Passara, 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
Passara, 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
Passara, 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
Passara, 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
Passara, 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
Passara, 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
Passara, 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
Passara, 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
Passara, 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
Passara, 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
Passara, 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).
