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 sea temperature 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
Weather in January
Temperature
January, known for its average high temperature of 7.5°C (45.5°F) and an average low temperature of 4.1°C (39.4°F), is the coldest month in Cardiff.Humidity
In Cardiff, United Kingdom, the average relative humidity in January is 85%.Rainfall
In Cardiff, United Kingdom, in January, it is raining for 11.3 days, with typically 16mm (0.63") of accumulated precipitation. In Cardiff, during the entire year, the rain falls for 132.6 days and collects up to 252mm (9.92") of precipitation.Snowfall
January, February, November and December are months with snowfall. In Cardiff, in January, snow falls for 0.8 days, with typically accumulated 1mm (0.04") of snow. In Cardiff, during the entire year, snow falls for 3.1 days and aggregates up to 8mm (0.31") of snow.Sea temperature
In Cardiff, the average seawater temperature in January is 9.3°C (48.7°F).Note: One needs to be cautious in 9.3°C (48.7°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
In Cardiff, the average length of the day in January is 8h and 27min.On the first day of January in Cardiff, sunrise is at 8:18 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:59 pm GMT.
Sunshine
In Cardiff, the average sunshine in January is 4.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during January leads to these advisories:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What part of the year is the coldest in Cardiff?
What is the average January temperature in Cardiff?
What is the average humidity in January in Cardiff?
How many days does it rain in January in Cardiff?
How many days does it snow in January in Cardiff?
What is the sea water temperature in January in Cardiff?
What is the average length of the day in January in Cardiff?
When are sunrise and sunset in January in Cardiff?
How long on average sun shines in January in Cardiff?
When is the lowest UV index in Cardiff?
What is the UV index intensity in January in Cardiff?
Average temperature in January
Cardiff, United Kingdom
- Average high temperature in January: 7.5°C
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in January: 4.1°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in January
Cardiff, United Kingdom
- Average pressure in January: 1014mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed in January
Cardiff, United Kingdom
- Average wind speed in January: 21.6km/h
The windiest month (with the highest average wind speed) is February (22.3km/h).
The calmest months (with the lowest average wind speed) are June and July (15.2km/h).
Average humidity in January
Cardiff, United Kingdom
- Average humidity in January: 85%
The months with the highest relative humidity are November and December (86%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in January
Cardiff, United Kingdom
- Average rainfall in January: 16mm
The wettest months (with the highest rainfall) are August and November (31mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in January
Cardiff, United Kingdom
- Average rainfall days in January: 11.3 days
The month with the highest number of rainy days is November (13.5 days).
The months with the least rainy days are February and April (9.1 days).
Average snowfall in January
Cardiff, United Kingdom
- Average snowfall in January: 1mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Cardiff, United Kingdom
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in January
Cardiff, United Kingdom
- Average sea temperature in January: 9.3°C
The best months for swimming (with the highest average sea temperature) are August and September (16.6°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).
Average daylight in January /
Average sunshine in January
Cardiff, United Kingdom
- Average daylight in January: 8h and 3min
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: 4h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days in January
Cardiff, United Kingdom
- Average sunshine days in January: 15.4 days
The month with the most sunshine days is April (19.2 days).
The month with the least sunshine days is November (13.7 days).
Average UV index in January
Cardiff, 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, March, November and December (UV index 2).
Average cloud cover in January
Cardiff, United Kingdom
- Average cloud cover in January: 58
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility in January
Cardiff, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are February, March and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October and November (9km).
Cardiff, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
