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
The average high-temperature during December is a still cool 11°C, almost matching the conditions of the preceding month. Penzance marks an average drop to a frosty 9.3°C during nighttime in December, following the high of the day.Humidity
January, February, November and December, with an average relative humidity of 79%, are the least humid months in Penzance.Rainfall
In December, the rain falls for 14.3 days. Throughout December, 26mm of precipitation is accumulated. In Penzance, during the entire year, the rain falls for 145.1 days and collects up to 224mm of precipitation.Snowfall
February through December are months without snowfall.Sea temperature
In Penzance, in December, the average water temperature is 11.8°C.Note: Being in 11.8°C waters at 13°C is discomforting, but anything below 10°C can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
The month with the shortest days is December, with an average of 8h and 6min of daylight.On the first day of December, sunrise is at 7:59 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 8:21 am and sunset at 4:28 pm GMT.
Sunshine
With an average of 3.8h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the UV index of 3 transforms into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
FAQ
What is the average December temperature in Penzance?
What is the least humid month 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?
How cold is the water in December in Penzance?
What is the month with the shortest days in Penzance?
What is the average length of the day in December in Penzance?
What time are sunrise and sunset in December in Penzance?
What is the month with the least sunshine in Penzance?
How long on average sun shines in December in Penzance?
What are the months with the lowest UV index in Penzance?
How high is the UV index 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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