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
Weather in December
Temperature
Porthcawl, United Kingdom, experiences a transition to a frosty 8.8°C (47.8°F) in average high-temperatures with the arrival of December, not greatly differing from November's 10.5°C (50.9°F). Porthcawl indicates a consistently low-temperature of 5.8°C (42.4°F) during the nights of December.Humidity
The months with the highest humidity are January, October through December, with an average relative humidity of 84%.Rainfall
The wettest months in Porthcawl are November and December, with an average 33mm (1.3") of rainfall.Snowfall
January through March and December are months with snowfall. The months with the most snowfall in Porthcawl are January and December, with an average 2mm (0.08") of accumulated snow.Sea temperature
In Porthcawl, in December, the average water temperature is 11.4°C (52.5°F).Note: Diving into 11.4°C (52.5°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
December has the shortest days of the year, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 7:58 am and sunset at 4:09 pm. On the last day of December, in Porthcawl, sunrise is at 8:20 am and sunset at 4:15 pm GMT.
Sunshine
The average sunshine in December is 3.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What are December temperatures in Porthcawl?
What is the most humid month in Porthcawl?
What is the average humidity in December in Porthcawl?
What is the rainiest month in Porthcawl?
How much does it rain in Porthcawl in December?
When does it snow the most in Porthcawl?
When does it start to snow in Porthcawl?
What is the water temperature in December in Porthcawl?
What is the month with the shortest days in Porthcawl?
What is the average length of the day in December in Porthcawl?
When are sunrise and sunset in December in Porthcawl?
How many hours of sunshine does Porthcawl have in December?
When is the lowest UV index in Porthcawl?
What is the UV index intensity in December in Porthcawl?
Average temperature in December
Porthcawl, United Kingdom
- Average high temperature in December: 8.8°C
The warmest month (with the highest average high temperature) is July (18.4°C).
The months with the lowest average high temperature are January and February (7.8°C).
- Average low temperature in December: 5.8°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).
Average pressure in December
Porthcawl, United Kingdom
- Average pressure in December: 1013.9mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed in December
Porthcawl, United Kingdom
- Average wind speed in December: 24.6km/h
The windiest month (with the highest average wind speed) is December (24.6km/h).
The calmest month (with the lowest average wind speed) is June (16.2km/h).
Average humidity in December
Porthcawl, United Kingdom
- Average humidity in December: 84%
The months with the highest relative humidity are January, October, November and December (84%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in December
Porthcawl, United Kingdom
- Average rainfall in December: 33mm
The wettest months (with the highest rainfall) are November and December (33mm).
The driest month (with the least rainfall) is May (9mm).
Average rainfall days in December
Porthcawl, United Kingdom
- Average rainfall days in December: 15.5 days
The months with the highest number of rainy days are November and December (15.5 days).
The month with the least rainy days is May (9.1 days).
Average snowfall in December
Porthcawl, United Kingdom
- Average snowfall in December: 2mm
The months with the highest snowfall are January and December (2mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Porthcawl, United Kingdom
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is January (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
Porthcawl, United Kingdom
- Average sea temperature in December: 11.4°C
The best month for swimming (with the highest average sea temperature) is August (17.1°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in December /
Average sunshine in December
Porthcawl, 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: 3h and 5min
The month with the most sunshine is May (Average sunshine: 8h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Porthcawl, United Kingdom
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is May (19.1 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in December
Porthcawl, 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
Porthcawl, United Kingdom
- Average cloud cover in December: 62
The months with the most cloud cover are November and December (Cloud cover 62).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility in December
Porthcawl, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are January, July, August and September (9km).
Porthcawl, United Kingdom
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