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
December
Weather in December
Temperature
Heswall experiences an average high-temperature of a frosty 7.9°C (46.2°F) in December, subtly different from November's 10°C (50°F). December introduces a small decrease to a nighttime average of 5°C (41°F).Humidity
The months with the highest humidity are January, November and December, with an average relative humidity of 84%.Rainfall
In Heswall, in December, it is raining for 19.8 days, with typically 63mm (2.48") of accumulated precipitation. In Heswall, during the entire year, the rain falls for 225.2 days and collects up to 669mm (26.34") of precipitation.Snowfall
Months with snowfall in Heswall, United Kingdom, are January through April and December. December is the first month it typically snows. Throughout December, in the average 1.8 snowfall days, it receives 15mm (0.59") of snow. Throughout the year, there are 9.8 snowfall days, and 60mm (2.36") of snow is accumulated.Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year.On the first day of December in Heswall, United Kingdom, sunrise is at 8:05 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 4:03 pm GMT.
Sunshine
In December, the average sunshine in Heswall is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Heswall. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during December leads to these advisories:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Heswall in December?
What is the most humid month in Heswall?
What is the average humidity in December in Heswall?
How many days does it rain in December in Heswall?
When does it start to snow in Heswall?
What is the month with the shortest days in Heswall?
What is the average length of the day in December in Heswall?
What time are sunrise and sunset in December in Heswall?
How long on average sun shines in December in Heswall?
What is the month with the lowest UV index in Heswall?
What is the UV index intensity in December in Heswall?
Average temperature in December
Heswall, United Kingdom
- Average high temperature in December: 7.9°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in December: 5°C
The month with the highest average low temperature is August (13.2°C).
The coldest months (with the lowest average low temperature) are January and February (3.6°C).
Average pressure in December
Heswall, United Kingdom
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in December
Heswall, United Kingdom
- Average wind speed in December: 21.1km/h
The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.7km/h).
Average humidity in December
Heswall, United Kingdom
- Average humidity in December: 84%
The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Heswall, United Kingdom
- Average rainfall in December: 63mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in December
Heswall, United Kingdom
- Average rainfall days in December: 19.8 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in December
Heswall, United Kingdom
- Average snowfall in December: 15mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Heswall, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.3 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
Heswall, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are April, May and July (Average sunshine: 7h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in December
Heswall, United Kingdom
- Average sunshine days in December: 7.1 days
The month with the most sunshine days is March (11.8 days).
The month with the least sunshine days is August (4.7 days).
Average UV index in December
Heswall, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Heswall, United Kingdom
- Average cloud cover in December: 60
The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April and May (Cloud cover 48).
Average visibility in December
Heswall, 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).
