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 tends to be the coldest month, with temperatures averaging a daily high of 9.7°C (49.5°F) and a low of 5.8°C (42.4°F).Humidity
In January, the average relative humidity in Châteaulin is 84%.Rainfall
In Châteaulin, in January, it is raining for 20.4 days, with typically 79mm (3.11") of accumulated precipitation. In Châteaulin, during the entire year, the rain falls for 192 days and collects up to 668mm (26.3") of precipitation.Snowfall
January, February and December are months with snowfall. The month with the most snowfall is January, when snow falls for 0.4 days and typically aggregates up to 8mm (0.31") of snow.Daylight
The average length of the day in January in Châteaulin, France, is 8h and 53min.On the first day of January, sunrise is at 09:06 and sunset at 17:32. On the last day of the month, sunrise is at 08:46 and sunset at 18:13 CET.
Sunshine
The average sunshine in January is 3.5h.UV index
With an average maximum UV index of 2, January is the month with the lowest UV index in Châteaulin. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 in January translates into these instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Châteaulin?
What are January temperatures in Châteaulin?
What is the average humidity in January in Châteaulin?
How many days does it rain in January in Châteaulin?
What is the snowiest month in Châteaulin?
How many days does it snow in January in Châteaulin?
What is the average length of the day in January in Châteaulin?
What time are sunrise and sunset in January in Châteaulin?
How long on average sun shines in January in Châteaulin?
What is the month with the lowest UV index in Châteaulin?
What is the UV index reading in January in Châteaulin?
Average temperature in January
Châteaulin, France
- Average high temperature in January: 9.7°C
The warmest month (with the highest average high temperature) is July (21.1°C).
The month with the lowest average high temperature is January (9.7°C).
- Average low temperature in January: 5.8°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (5.1°C).
Average pressure in January
Châteaulin, France
- Average pressure in January: 1017.3mbar
The month with the highest atmospheric pressure is September (1018.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in January
Châteaulin, France
- Average wind speed in January: 20.6km/h
The windiest month (with the highest average wind speed) is January (20.6km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).
Average humidity in January
Châteaulin, France
- Average humidity in January: 84%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is April (79%).
Average rainfall in January
Châteaulin, France
- Average rainfall in January: 79mm
The wettest month (with the highest rainfall) is December (95mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in January
Châteaulin, France
- Average rainfall days in January: 20.4 days
The month with the highest number of rainy days is January (20.4 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in January
Châteaulin, France
- Average snowfall in January: 8mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Châteaulin, France
- Average snowfall days in January: 0.4 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Châteaulin, France
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in January
Châteaulin, France
- Average sunshine days in January: 7.9 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is November (7.5 days).
Average UV index in January
Châteaulin, France
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in January
Châteaulin, France
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in January
Châteaulin, France
- 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).
