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
December
Weather in December
Temperature
Martletwy's December average high-temperature settles at a still cool 10°C (50°F), showing a near match with the preceding month. December nights in Martletwy cool to an average low-temperature of 7.8°C (46°F), a marginal decrease from its daytime equivalent.Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 22.3 days. Throughout December, 88mm (3.46") of precipitation is accumulated. Throughout the year, in Martletwy, there are 220.1 rainfall days, and 757mm (29.8") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Martletwy, in December, snow falls for 0.4 days, with typically accumulated 1mm (0.04") of snow. Throughout the year, there are 2.7 snowfall days, and 22mm (0.87") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 8:04 am and sunset at 4:12 pm. On the last day of December, sunrise is at 8:26 am and sunset at 4:19 pm GMT.
Sunshine
The months with the least sunshine are January, November and December, with an average of 3.8h of sunshine.UV index
In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, an average UV index of 3 transforms into the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
How high is the UV index in December?
Average temperature in December
Martletwy, United Kingdom
- Average high temperature in December: 10°C
The warmest month (with the highest average high temperature) is August (17.3°C).
The month with the lowest average high temperature is February (8.4°C).
- Average low temperature in December: 7.8°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (6.1°C).
Average pressure in December
Martletwy, United Kingdom
- Average pressure in December: 1013.5mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.6mbar).
Average wind speed in December
Martletwy, United Kingdom
- Average wind speed in December: 30.8km/h
The windiest month (with the highest average wind speed) is December (30.8km/h).
The calmest month (with the lowest average wind speed) is June (18.9km/h).
Average humidity in December
Martletwy, United Kingdom
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (80%).
Average rainfall in December
Martletwy, United Kingdom
- Average rainfall in December: 88mm
The wettest month (with the highest rainfall) is November (102mm).
The driest month (with the least rainfall) is May (31mm).
Average rainfall days in December
Martletwy, United Kingdom
- Average rainfall days in December: 22.3 days
The month with the highest number of rainy days is November (23.2 days).
The month with the least rainy days is May (14.9 days).
Average snowfall in December
Martletwy, United Kingdom
- Average snowfall in December: 1mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Martletwy, United Kingdom
- Average snowfall days in December: 0.4 days
The months with the highest number of snowfall days are January and February (0.9 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
Martletwy, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is May (Average sunshine: 8h and 36min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 48min).
Average sunshine days in December
Martletwy, United Kingdom
- Average sunshine days in December: 4.8 days
The month with the most sunshine days is May (13.3 days).
The month with the least sunshine days is November (4.4 days).
Average UV index in December
Martletwy, United Kingdom
- Average UV index in December: 3
The months with the highest UV index are May, June, July, August, September and October (UV index 4).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Martletwy, 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 May (Cloud cover 44).
Average visibility in December
Martletwy, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).
