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 sea temperature 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 observes an average high-temperature of a chilly 8.6°C (47.5°F), marking an insignificant difference from November's 10.4°C (50.7°F). An average nighttime temperature of 5.2°C (41.4°F) marks December.Humidity
November and December, with an average relative humidity of 86%, are the most humid months in Penarth.Rainfall
In Penarth, during December, the rain falls for 12.5 days and regularly aggregates up to 27mm (1.06") of precipitation. In Penarth, during the entire year, the rain falls for 132.6 days and collects up to 252mm (9.92") of precipitation.Snowfall
January, February, November and December are months with snowfall. In December, it is snowing for 0.7 days. Throughout December, 1mm (0.04") of snow is accumulated. Throughout the year, in Penarth, there are 3.1 snowfall days, and 8mm (0.31") of snow is accumulated.Sea temperature
In December, the average sea temperature is 11.5°C (52.7°F).Note: In 11.5°C (52.7°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).
Daylight
December has the shortest days of the year in Penarth, United Kingdom, with an average of 7h and 54min of daylight.On the first day of December, sunrise is at 7:56 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 8:17 am and sunset at 4:13 pm GMT.
Sunshine
In Penarth, the average sunshine in December is 4.1h.UV index
The months with the lowest UV index in Penarth are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Penarth?
What is the most humid month in Penarth?
What is the average humidity in December in Penarth?
How much does it rain in Penarth in December?
How much does it snow in Penarth in December?
What is the water temperature in December in Penarth?
What is the month with the shortest days in Penarth?
How many hours of daylight does Penarth have in December?
When are sunrise and sunset in December in Penarth?
How many hours of sunshine does Penarth have in December?
What are the months with the lowest UV index in Penarth?
What is the UV index reading in December in Penarth?
Average temperature in December
Penarth, United Kingdom
- Average high temperature in December: 8.6°C
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in December: 5.2°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in December
Penarth, United Kingdom
- Average pressure in December: 1014mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed in December
Penarth, United Kingdom
- Average wind speed in December: 22km/h
The windiest month (with the highest average wind speed) is February (22.3km/h).
The calmest months (with the lowest average wind speed) are June and July (15.2km/h).
Average humidity in December
Penarth, United Kingdom
- Average humidity in December: 86%
The months with the highest relative humidity are November and December (86%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in December
Penarth, United Kingdom
- Average rainfall in December: 27mm
The wettest months (with the highest rainfall) are August and November (31mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in December
Penarth, United Kingdom
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is November (13.5 days).
The months with the least rainy days are February and April (9.1 days).
Average snowfall in December
Penarth, United Kingdom
- Average snowfall in December: 1mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Penarth, United Kingdom
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in December
Penarth, United Kingdom
- Average sea temperature in December: 11.5°C
The best months for swimming (with the highest average sea temperature) are August and September (16.6°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).
Average daylight in December /
Average sunshine in December
Penarth, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days in December
Penarth, United Kingdom
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is April (19.2 days).
The month with the least sunshine days is November (13.7 days).
Average UV index in December
Penarth, 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, March, November and December (UV index 2).
Average cloud cover in December
Penarth, United Kingdom
- Average cloud cover in December: 59
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility in December
Penarth, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are February, March and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October and November (9km).
