January weather forecastMostyn, United Kingdom
January weather for Mostyn, United Kingdom: January, like December, is a frosty winter month in Mostyn, United Kingdom, with an average temperature ranging between max 7°C (44.6°F) and min 3.6°C (38.5°F). January, November and December, with an average relative humidity of 84%, are most humid months in Mostyn, United Kingdom.
January
Weather in January
January, like December, is a frosty winter month in Mostyn, United Kingdom, with an average temperature ranging between max 7°C (44.6°F) and min 3.6°C (38.5°F).Temperature
January stands out as Mostyn's coldest month, with an average high-temperature of 7°C (44.6°F) and a low-temperature of 3.6°C (38.5°F).Humidity
January, November and December, with an average relative humidity of 84%, are the most humid months.Rainfall
In Mostyn, in January, it is raining for 18.7 days, with typically 47mm (1.85") of accumulated precipitation. Throughout the year, there are 225.2 rainfall days, and 669mm (26.34") of precipitation is accumulated.Snowfall
Months with snowfall in Mostyn are January through April and December. In January, it is snowing for 2.5 days. Throughout January, 18mm (0.71") of snow is accumulated. Throughout the year, in Mostyn, there are 9.8 snowfall days, and 60mm (2.36") of snow is accumulated.Sea temperature
In Mostyn, the average seawater temperature in January is 7.7°C (45.9°F).Note: Swimming in 7.7°C (45.9°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
Daylight
In Mostyn, the average length of the day in January is 8h and 11min.On the first day of the month, sunrise is at 8:27 am and sunset at 4:04 pm. On the last day of January, in Mostyn, sunrise is at 7:59 am and sunset at 4:53 pm GMT.
Sunshine
In Mostyn, the average sunshine in January is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during January leads to these advisories:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mostyn, United Kingdom
- Average high temperature in January: 7°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in January: 3.6°C
The month with the highest average low temperature is August (13.2°C).
The coldest months (with the lowest average low temperature) are January and February (3.6°C).
Average pressure in January
Mostyn, United Kingdom
- Average pressure in January: 1012.3mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in January
Mostyn, United Kingdom
- Average wind speed in January: 21.1km/h
The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.7km/h).
Average humidity in January
Mostyn, United Kingdom
- Average humidity in January: 84%
The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in January
Mostyn, United Kingdom
- Average rainfall in January: 47mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in January
Mostyn, United Kingdom
- Average rainfall days in January: 18.7 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in January
Mostyn, United Kingdom
- Average snowfall in January: 18mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Mostyn, United Kingdom
- Average snowfall days in January: 2.5 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Mostyn, United Kingdom
- Average sea temperature in January: 7.7°C
The best month for swimming (with the highest average sea temperature) is August (16.7°C).
The coldest months (with the lowest average sea temperature) are February and March (7.4°C).
Average daylight in January /
Average sunshine in January
Mostyn, United Kingdom
- Average daylight in January: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in January: 4h and 6min
The months with the most sunshine are April, May and July (Average sunshine: 7h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in January
Mostyn, United Kingdom
- Average sunshine days in January: 8.8 days
The month with the most sunshine days is March (11.8 days).
The month with the least sunshine days is August (4.7 days).
Average UV index in January
Mostyn, United Kingdom
- Average UV index in January: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Mostyn, United Kingdom
- Average cloud cover in January: 59
The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April and May (Cloud cover 48).
Average visibility in January
Mostyn, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





