December weather forecastAberystwyth, United Kingdom
December
Weather in December
December, the first month of the winter in Aberystwyth, is still a chilly month, with an average temperature ranging between min 5°C (41°F) and max 8.1°C (46.6°F).Temperature
Aberystwyth notes an average high-temperature of a still frosty 8.1°C (46.6°F) in December, hardly diverging from November. Consistently, Aberystwyth reports average nighttime temperatures of 5°C (41°F) during December, a marginal step down from its daytime highs.Humidity
In Aberystwyth, United Kingdom, the average relative humidity in December is 86%.Rainfall
The month with the most rainfall in Aberystwyth, United Kingdom, is December, when the rain falls for 14.7 days and typically aggregates up to 39mm (1.54") of precipitation.Snowfall
Months with snowfall are January through April and December. December is the first month it typically snows in Aberystwyth, United Kingdom. Throughout December, in the average 0.6 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, in Aberystwyth, there are 5.5 snowfall days, and 25mm (0.98") of snow is accumulated.Sea temperature
In December, the average sea temperature is 10.9°C (51.6°F).Note: Dipping into 10.9°C (51.6°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
The month with the shortest days in Aberystwyth, United Kingdom, is December, with an average of 7h and 48min of daylight.On the first day of December, sunrise is at 8:04 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 8:26 am and sunset at 4:12 pm GMT.
Sunshine
The month with the least sunshine in Aberystwyth is December, with an average of 3.6h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Aberystwyth, United Kingdom
- Average high temperature in December: 8.1°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in December: 5°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average pressure in December
Aberystwyth, United Kingdom
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in December
Aberystwyth, United Kingdom
- Average wind speed in December: 23.6km/h
The windiest month (with the highest average wind speed) is December (23.6km/h).
The calmest month (with the lowest average wind speed) is June (14.5km/h).
Average humidity in December
Aberystwyth, United Kingdom
- Average humidity in December: 86%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in December
Aberystwyth, United Kingdom
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is May (14mm).
Average rainfall days in December
Aberystwyth, United Kingdom
- Average rainfall days in December: 14.7 days
The month with the highest number of rainy days is December (14.7 days).
The months with the least rainy days are April and May (11.1 days).
Average snowfall in December
Aberystwyth, United Kingdom
- Average snowfall in December: 2mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Aberystwyth, United Kingdom
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Aberystwyth, United Kingdom
- Average sea temperature in December: 10.9°C
The best months for swimming (with the highest average sea temperature) are August and September (15.8°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in December /
Average sunshine in December
Aberystwyth, United Kingdom
- Average daylight in December: 7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Aberystwyth, United Kingdom
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is March (16.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in December
Aberystwyth, 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
Aberystwyth, United Kingdom
- Average cloud cover in December: 64
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and May (Cloud cover 49).
Average visibility in December
Aberystwyth, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (9km).
