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 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
Port Isaac, United Kingdom, experiences a recorded average high-temperature of a still cool 10.1°C (50.2°F) in December, closely aligned with November's 11.5°C (52.7°F). In Port Isaac, December's low temperatures hover around a frosty 7.5°C (45.5°F), reflecting a minor decrease from the daytime highs.Humidity
In December, the average relative humidity is 82%.Rainfall
In Port Isaac, during December, the rain falls for 20 days and regularly aggregates up to 72mm (2.83") of precipitation. Throughout the year, there are 197.9 rainfall days, and 600mm (23.62") of precipitation is accumulated.Snowfall
Months with snowfall are January, February, November and December. The months with the most snowfall are February and December, with an average 3mm (0.12") of accumulated snow.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year in Port Isaac, United Kingdom.On the first day of the month, sunrise is at 7:59 am and sunset at 4:17 pm. On the last day of December, sunrise is at 8:20 am and sunset at 4:24 pm GMT.
Sunshine
January, November and December, with an average of 3.8h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What are December temperatures in Port Isaac?
What is the average humidity in December in Port Isaac?
How much does it rain in Port Isaac in December?
When does it snow the most in Port Isaac?
How much does it snow in Port Isaac in December?
What is the month with the shortest days in Port Isaac?
What is the average length of the day in December in Port Isaac?
When is the sunrise / sunset in December in Port Isaac?
What are the months with the least sunshine in Port Isaac?
How long on average sun shines in December in Port Isaac?
When is the lowest UV index in Port Isaac?
What is the UV index reading in December in Port Isaac?
Average temperature in December
Port Isaac, United Kingdom
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is July (17.9°C).
The month with the lowest average high temperature is February (8.7°C).
- Average low temperature in December: 7.5°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is February (5.9°C).
Average pressure in December
Port Isaac, United Kingdom
- Average pressure in December: 1014.7mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.2mbar).
Average wind speed in December
Port Isaac, United Kingdom
- Average wind speed in December: 29km/h
The windiest month (with the highest average wind speed) is December (29km/h).
The calmest month (with the lowest average wind speed) is July (18.3km/h).
Average humidity in December
Port Isaac, United Kingdom
- Average humidity in December: 82%
The months with the highest relative humidity are June, July and August (84%).
The months with the lowest relative humidity are February, March and November (81%).
Average rainfall in December
Port Isaac, United Kingdom
- Average rainfall in December: 72mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is May (29mm).
Average rainfall days in December
Port Isaac, United Kingdom
- Average rainfall days in December: 20 days
The month with the highest number of rainy days is November (21 days).
The month with the least rainy days is May (14 days).
Average snowfall in December
Port Isaac, United Kingdom
- Average snowfall in December: 3mm
The months with the highest snowfall are February and December (3mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Port Isaac, United Kingdom
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Port Isaac, 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: 3h and 5min
The month with the most sunshine is April (Average sunshine: 8h and 6min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 48min).
Average sunshine days in December
Port Isaac, United Kingdom
- Average sunshine days in December: 7.1 days
The month with the most sunshine days is May (14.6 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in December
Port Isaac, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August, September and October (UV index 4).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Port Isaac, United Kingdom
- Average cloud cover in December: 63
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 46).
Average visibility in December
Port Isaac, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is May (9km).
Port Isaac, United Kingdom
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