Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
January brings a marginal elevation to a frosty 8.8°C (47.8°F) from December's 10°C (50°F) in Martletwy's average high-temperatures. Martletwy, during the January nights, maintains an average temperature of 6.5°C (43.7°F), closely aligned with its daytime readings.Humidity
In Martletwy, the average relative humidity in January is 81%.Rainfall
In Martletwy, in January, it is raining for 21.1 days, with typically 75mm (2.95") of accumulated precipitation. Throughout the year, 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. January is the month with the most snowfall in Martletwy. Snow falls for 0.9 days and accumulates 11mm (0.43") of snow.Daylight
In January, the average length of the day is 8h and 25min.On the first day of January, sunrise is at 8:26 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:05 pm GMT.
Sunshine
January, November and December, with an average of 3.8h of sunshine, are months with the least sunshine.UV index
January is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in January?
What is the average humidity in January?
How many days does it rain in January?
When does it snow the most?
How much does it snow in Martletwy in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What are the months with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Martletwy, United Kingdom
- Average high temperature in January: 8.8°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 January: 6.5°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 January
Martletwy, United Kingdom
- Average pressure in January: 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 January
Martletwy, United Kingdom
- Average wind speed in January: 28.8km/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 January
Martletwy, United Kingdom
- Average humidity in January: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (80%).
Average rainfall in January
Martletwy, United Kingdom
- Average rainfall in January: 75mm
The wettest month (with the highest rainfall) is November (102mm).
The driest month (with the least rainfall) is May (31mm).
Average rainfall days in January
Martletwy, United Kingdom
- Average rainfall days in January: 21.1 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 January
Martletwy, United Kingdom
- Average snowfall in January: 11mm
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 January
Martletwy, United Kingdom
- Average snowfall days in January: 0.9 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 January /
Average sunshine in January
Martletwy, United Kingdom
- Average daylight in January: 8h and 2min
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 January: 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 January
Martletwy, United Kingdom
- Average sunshine days in January: 7.4 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 January
Martletwy, United Kingdom
- Average UV index in January: 2
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 January
Martletwy, United Kingdom
- Average cloud cover in January: 62
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 January
Martletwy, United Kingdom
- Average visibility in January: 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).
