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
Weather in January
Temperature
January's climate shows a minor adjustment in average high-temperatures to a still chilly 7.1°C (44.8°F) from December's 8.5°C (47.3°F). January nights witness a slight temperature decrease, averaging at an icy 4.5°C (40.1°F).Humidity
In Caernarfon, the average relative humidity in January is 84%.Rainfall
In Caernarfon, in January, during 21.4 rainfall days, 66mm (2.6") of precipitation is typically accumulated. Throughout the year, there are 236.8 rainfall days, and 754mm (29.69") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Caernarfon, in January, snow falls for 2.3 days, with typically accumulated 13mm (0.51") of snow. In Caernarfon, United Kingdom, during the entire year, snow falls for 8.8 days and aggregates up to 58mm (2.28") of snow.Daylight
In Caernarfon, the average length of the day in January is 8h and 13min.On the first day of January in Caernarfon, sunrise is at 8:31 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 4:57 pm GMT.
Sunshine
The average sunshine in January is 3.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Caernarfon, United Kingdom. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What are the temperatures in Caernarfon in January?
What is the average humidity in January in Caernarfon?
How many days does it rain in January in Caernarfon?
How many days does it snow in January in Caernarfon?
How many hours of daylight does Caernarfon have in January?
When are sunrise and sunset in January in Caernarfon?
How long on average sun shines in January in Caernarfon?
What is the month with the lowest UV index in Caernarfon?
What is the UV index intensity in January in Caernarfon?
Average temperature in January
Caernarfon, United Kingdom
- Average high temperature in January: 7.1°C
The warmest month (with the highest average high temperature) is July (16.7°C).
The month with the lowest average high temperature is February (7°C).
- Average low temperature in January: 4.5°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in January
Caernarfon, 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
Caernarfon, United Kingdom
- Average wind speed in January: 23.8km/h
The windiest month (with the highest average wind speed) is December (25.3km/h).
The calmest month (with the lowest average wind speed) is June (15.1km/h).
Average humidity in January
Caernarfon, United Kingdom
- Average humidity in January: 84%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in January
Caernarfon, United Kingdom
- Average rainfall in January: 66mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in January
Caernarfon, United Kingdom
- Average rainfall days in January: 21.4 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is April (16.3 days).
Average snowfall in January
Caernarfon, United Kingdom
- Average snowfall in January: 13mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in January
Caernarfon, United Kingdom
- Average snowfall days in January: 2.3 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Caernarfon, United Kingdom
- Average daylight in January: 8h and 1min
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: 3h and 4min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in January
Caernarfon, United Kingdom
- Average sunshine days in January: 6.1 days
The month with the most sunshine days is April (11.4 days).
The month with the least sunshine days is December (4.2 days).
Average UV index in January
Caernarfon, 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
Caernarfon, United Kingdom
- Average cloud cover in January: 65
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 49).
Average visibility in January
Caernarfon, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (9km).
Caernarfon, United Kingdom
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