December weather forecastRustington, United Kingdom
December
Weather in December
The first month of the winter, December, is also a frosty month in Rustington, United Kingdom, with an average temperature varying between 9.3°C (48.7°F) and 5.7°C (42.3°F).Temperature
The transition from November to December brings an average high-temperature of a frosty 9.3°C (48.7°F), barely different from November's 11.2°C (52.2°F). In Rustington, December nights experience a modest descent in temperature from daily peaks, cooling down to an average of 5.7°C (42.3°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 85%.Rainfall
In Rustington, in December, during 16.5 rainfall days, 62mm (2.44") of precipitation is typically accumulated. Throughout the year, in Rustington, there are 180.3 rainfall days, and 484mm (19.06") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 1.5 days. Throughout December, 8mm (0.31") of snow is accumulated. In Rustington, United Kingdom, during the entire year, snow falls for 6.7 days and aggregates up to 31mm (1.22") of snow.Daylight
The month with the shortest days in Rustington is December, with an average of 8h and 0min of daylight.On the first day of December, sunrise is at 7:42 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 4:06 pm GMT.
Sunshine
In Rustington, the average sunshine in December is 4.4h.UV index
The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rustington, United Kingdom
- Average high temperature in December: 9.3°C
The warmest months (with the highest average high temperature) are July and August (19.7°C).
The months with the lowest average high temperature are January and February (7.7°C).
- Average low temperature in December: 5.7°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).
Average pressure in December
Rustington, United Kingdom
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in December
Rustington, United Kingdom
- Average wind speed in December: 24.2km/h
The windiest month (with the highest average wind speed) is December (24.2km/h).
The calmest month (with the lowest average wind speed) is July (16.5km/h).
Average humidity in December
Rustington, United Kingdom
- Average humidity in December: 85%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are August and September (79%).
Average rainfall in December
Rustington, United Kingdom
- Average rainfall in December: 62mm
The wettest month (with the highest rainfall) is November (64mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in December
Rustington, United Kingdom
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is November (18.3 days).
The month with the least rainy days is September (12.5 days).
Average snowfall in December
Rustington, United Kingdom
- Average snowfall in December: 8mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Rustington, United Kingdom
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rustington, United Kingdom
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Rustington, United Kingdom
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is April (14.7 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in December
Rustington, United Kingdom
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in December
Rustington, United Kingdom
- Average cloud cover in December: 56
The months with the most cloud cover are February and November (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Rustington, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).





