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 snowfall in December
- Average snowfall 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
Weather in December
Temperature
Shifting into December, Horley records an average high-temperature of a chilly 8.1°C (46.6°F), presenting minor fluctuations compared to the previous month. Horley registers a gentle descent to an average nighttime low of 3.9°C (39°F) in December from its daytime highs.Humidity
The most humid month in Horley is December, with an average relative humidity of 89%.Rainfall
The wettest months in Horley are November and December, with an average 26mm (1.02") of rainfall.Snowfall
Months with snowfall in Horley are January through March, November and December. In Horley, during December, snow falls for 0.9 days and regularly aggregates up to 4mm (0.16") of snow. Throughout the year, in Horley, there are 7.4 snowfall days, and 22mm (0.87") of snow is accumulated.Daylight
With an average of 8h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:43 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 4:03 pm GMT.
Sunshine
The average sunshine in December is 4.2h.UV index
The months with the lowest UV index in Horley are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What is the temperature in December in Horley?
What is the most humid month in Horley?
What is the average humidity in December in Horley?
What is the rainiest month in Horley?
How many days does it rain in December in Horley?
How many days does it snow in December in Horley?
What is the month with the shortest days in Horley?
How many hours of daylight does Horley have in December?
When are sunrise and sunset in December in Horley?
How long on average sun shines in December in Horley?
What are the months with the lowest UV index in Horley?
How high is the UV index in December in Horley?
Average temperature in December
Horley, United Kingdom
- Average high temperature in December: 8.1°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in December: 3.9°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in December
Horley, United Kingdom
- Average pressure in December: 1014.9mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in December
Horley, United Kingdom
- Average wind speed in December: 17.7km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest months (with the lowest average wind speed) are July and August (13.2km/h).
Average humidity in December
Horley, United Kingdom
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Horley, United Kingdom
- Average rainfall in December: 26mm
The wettest months (with the highest rainfall) are November and December (26mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in December
Horley, United Kingdom
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is November (14.7 days).
The month with the least rainy days is September (8.4 days).
Average snowfall in December
Horley, United Kingdom
- Average snowfall in December: 4mm
The month with the highest snowfall is February (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Horley, United Kingdom
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is January (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
Horley, United Kingdom
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Horley, United Kingdom
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is November (11 days).
Average UV index in December
Horley, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Horley, United Kingdom
- Average cloud cover in December: 59
The months with the most cloud cover are February and November (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 46).
Average visibility in December
Horley, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Horley, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
