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
Watford's transition from November to December introduces an average high-temperature of a still frosty 7.4°C (45.3°F), marking an insignificant variation from the 9.9°C (49.8°F). Watford's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at a cold 2.9°C (37.2°F).Humidity
With an average relative humidity of 90%, December is the most humid month in Watford, United Kingdom.Rainfall
In December, in Watford, the rain falls for 12 days. Throughout December, 24mm (0.94") of precipitation is accumulated. Throughout the year, in Watford, United Kingdom, there are 140.9 rainfall days, and 239mm (9.41") of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1.4 snowfall days, it receives 4mm (0.16") of snow. In Watford, United Kingdom, during the entire year, snow falls for 6.3 days and aggregates up to 28mm (1.1") of snow.Daylight
With an average of 7h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:46 am and sunset at 3:55 pm. On the last day of December, in Watford, sunrise is at 8:07 am and sunset at 4:01 pm GMT.
Sunshine
In December, the average sunshine is 4.3h.UV index
The months with the lowest UV index in Watford 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 hazard from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. It's recommended to limit sun exposure when its radiation is at its peak during midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Watford?
What is the most humid month in Watford?
What is the average humidity in December in Watford?
How much does it rain in Watford in December?
When does it start to snow in Watford?
What is the month with the shortest days in Watford?
How many hours of daylight does Watford have in December?
When are sunrise and sunset in December in Watford?
How many hours of sunshine does Watford have in December?
What are the months with the lowest UV index in Watford?
How high is the UV index in December in Watford?
Average temperature in December
Watford, United Kingdom
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in December: 2.9°C
The month with the highest average low temperature is August (13.1°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in December
Watford, United Kingdom
- Average pressure in December: 1014.2mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in December
Watford, United Kingdom
- Average wind speed in December: 17.9km/h
The windiest month (with the highest average wind speed) is February (18.1km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in December
Watford, United Kingdom
- Average humidity in December: 90%
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Watford, United Kingdom
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is June (31mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in December
Watford, United Kingdom
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is July (14.2 days).
The months with the least rainy days are February and September (9.3 days).
Average snowfall in December
Watford, United Kingdom
- Average snowfall in December: 4mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Watford, United Kingdom
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.3 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
Watford, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Watford, United Kingdom
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in December
Watford, United Kingdom
- Average UV index in December: 2
The month with the highest UV index is 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
Watford, United Kingdom
- Average cloud cover in December: 58
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in December
Watford, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Watford, United Kingdom
Weather forecast for your location
2. Allow the app to use your location