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
Penzance, United Kingdom, sees the arrival of December with an average high-temperature of a still fresh 11°C (51.8°F), indicating a subtle variation from November. Night temperatures during December stabilize at an average of 9.3°C (48.7°F), closely mirroring the daytime temperatures.Humidity
January, February, November and December, with an average relative humidity of 79%, are the least humid months.Rainfall
In Penzance, in December, it is raining for 14.3 days, with typically 26mm (1.02") of accumulated precipitation. Throughout the year, there are 145.1 rainfall days, and 224mm (8.82") of precipitation is accumulated.Snowfall
February through December are months without snowfall.Sea temperature
In Penzance, in December, the average water temperature is 11.8°C (53.2°F).Note: Danger awaits those who swim in 11.8°C (53.2°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.
Daylight
December has the shortest days of the year in Penzance, United Kingdom, with an average of 8h and 6min of daylight.On the first day of the month, sunrise is at 8:00 am and sunset at 4:22 pm. On the last day of December, sunrise is at 8:21 am and sunset at 4:29 pm GMT.
Sunshine
With an average of 3.8h of sunshine, December has the least sunshine of the year in Penzance, United Kingdom.UV index
January through April, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Penzance, United Kingdom. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the UV index of 3 transforms into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Penzance?
What are the least humid months in Penzance?
What is the average humidity in December in Penzance?
How many days does it rain in December in Penzance?
When it does not snow in Penzance?
Does it snow in Penzance in December?
What is the water temperature in December in Penzance?
What is the month with the shortest days in Penzance?
How many hours of daylight does Penzance have in December?
When is the sunrise / sunset in December in Penzance?
What is the month with the least sunshine in Penzance?
How many hours of sunshine does Penzance have in December?
What is the month with the lowest UV index in Penzance?
What is the UV index intensity in December in Penzance?
Average temperature in December
Penzance, United Kingdom
- Average high temperature in December: 11°C
The warmest month (with the highest average high temperature) is August (17.4°C).
The month with the lowest average high temperature is February (9.4°C).
- Average low temperature in December: 9.3°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (7.3°C).
Average pressure in December
Penzance, United Kingdom
- Average pressure in December: 1015mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in December
Penzance, United Kingdom
- Average wind speed in December: 34.4km/h
The windiest month (with the highest average wind speed) is December (34.4km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity in December
Penzance, United Kingdom
- Average humidity in December: 79%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January, February, November and December (79%).
Average rainfall in December
Penzance, United Kingdom
- Average rainfall in December: 26mm
The wettest month (with the highest rainfall) is November (36mm).
The driest month (with the least rainfall) is May (10mm).
Average rainfall days in December
Penzance, United Kingdom
- Average rainfall days in December: 14.3 days
The month with the highest number of rainy days is November (16.3 days).
The month with the least rainy days is June (9.2 days).
Average snowfall in December
Penzance, United Kingdom
- Average snowfall in December: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Penzance, United Kingdom
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Penzance, United Kingdom
- Average sea temperature in December: 11.8°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 (9.7°C).
Average daylight in December /
Average sunshine in December
Penzance, United Kingdom
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is April (Average sunshine: 8h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Penzance, United Kingdom
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is May (19.2 days).
The month with the least sunshine days is November (9.7 days).
Average UV index in December
Penzance, United Kingdom
- Average UV index in December: 3
The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in December
Penzance, United Kingdom
- Average cloud cover in December: 63
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in December
Penzance, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Penzance, United Kingdom
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