Weather in December
As the year winds down, December registers a palpable shift in Plymouth's weather, with the mercury dipping further to 9.5°C (49.1°F). The contrast from the warmth of summer is definitive, announcing the arrival of the holiday season. Short daylight hours combined with cold temperatures induce a sense of calmness and joyous expectation. The city lights up with festive decorations, radiating warmth amid chilly winds. An aura of festive cheer wraps up the weather of this year-end month.
Note: With the appropriate swimsuit, one can swim in 11.9°C (53.4°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
On the first day of the month, sunrise is at 7:55 am and sunset at 4:16 pm. On the last day of December, sunrise is at 8:16 am and sunset at 4:22 pm GMT.
Note: The maximum UV index of 1 during December translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
[Resources]Temperature
Plymouth's shift from November to December is accompanied by an average high-temperature of a chilly 9.5°C (49.1°F), a slight deviation from 11.8°C (53.2°F). Plymouth's evenings during December maintain an average temperature of 4.5°C (40.1°F), aligning closely with the daytime temperatures.Rainfall
December is the month with the most rainfall. Rain falls for 14.5 days and accumulates 119mm (4.69") of precipitation.Sea temperature
In Plymouth, the average seawater temperature in December is 11.9°C (53.4°F).Note: With the appropriate swimsuit, one can swim in 11.9°C (53.4°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
The month with the shortest days in Plymouth is December, with an average of 8h and 6min of daylight.On the first day of the month, sunrise is at 7:55 am and sunset at 4:16 pm. On the last day of December, sunrise is at 8:16 am and sunset at 4:22 pm GMT.
Sunshine
The month with the least sunshine is December, with an average of 1.8h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Plymouth. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What are the temperatures in Plymouth in December?
In December, the average high-temperature and low-temperature are 9.5°C (49.1°F) and 4.5°C (40.1°F) respectively.
What is the wettest month in Plymouth?
The month with the most rainfall in Plymouth is December, when the rain falls for 14.5 days and typically aggregates up to 119mm (4.69") of precipitation.
How many days does it rain in December in Plymouth?
In Plymouth, during December, the rain falls for 14.5 days and regularly aggregates up to 119mm (4.69") of precipitation.
What is the sea water temperature in December in Plymouth?
In Plymouth, in December, the average water temperature is 11.9°C (53.4°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
What is the month with the shortest days in Plymouth?
The month with the shortest days in Plymouth is December, with an average of 8h and 6min of daylight.
How many hours of daylight does Plymouth have in December?
In December, the average day length is 8h and 7min.
When is the sunrise / sunset in December in Plymouth?
In December, on the first day of the month, sunrise is at 7:55 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 8:16 am and sunset at 4:22 pm GMT.
What is the month with the least sunshine in Plymouth?
The month with the least sunshine is December, with an average of 1.8h of sunshine.
How many hours of sunshine does Plymouth have in December?
The average sunshine duration in December in Plymouth is 1.8h.
What are the months with the lowest UV index in Plymouth?
The months with the lowest UV index in Plymouth, United Kingdom, are January, February, November and December, with an average maximum UV index of 1.
What is the UV index intensity in December in Plymouth?
In Plymouth, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average temperature in December
Plymouth, United Kingdom
- Average high temperature in December: 9.5°C
The warmest month (with the highest average high temperature) is August (20°C).
The months with the lowest average high temperature are January and February (8.8°C).
- Average low temperature in December: 4.5°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average rainfall in December
Plymouth, United Kingdom
- Average rainfall in December: 118.8mm
The wettest month (with the highest rainfall) is December (118.8mm).
The driest month (with the least rainfall) is June (57.2mm).
Average rainfall days in December
Plymouth, United Kingdom
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is January (15.1 days).
The month with the least rainy days is June (8.5 days).
Average sea temperature in December
Plymouth, United Kingdom
- Average sea temperature in December: 11.9°C
The best month for swimming (with the highest average sea temperature) is August (16.9°C).
The coldest month (with the lowest average sea temperature) is March (9.5°C).
Average daylight in December /
Average sunshine in December
Plymouth, United Kingdom
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 1h and 5min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average UV index in December
Plymouth, United Kingdom
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Plymouth, United Kingdom
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