January weather forecastTreffléan, France

January

Weather in January

January, like December, is another chilly winter month in Treffléan, France, with an average temperature fluctuating between 9.3°C (48.7°F) and 5.8°C (42.4°F).

Temperature

With average high and low temperatures of 9.3°C (48.7°F) and 5.8°C (42.4°F) respectively, January is Treffléan's coldest month.

Humidity

January and December, with an average relative humidity of 83%, are the most humid months.

Rainfall

In Treffléan, in January, it is raining for 17.7 days, with typically 62mm (2.44") of accumulated precipitation. Throughout the year, there are 169.8 rainfall days, and 593mm (23.35") of precipitation is accumulated.

Snowfall

In Treffléan, snow does not fall in January, March, May through November.

Daylight

In January, the average length of the day in Treffléan is 8h and 56min.
On the first day of January, sunrise is at 08:58 and sunset at 17:28. On the last day of the month, sunrise is at 08:38 and sunset at 18:08 CET.

Sunshine

The month with the least sunshine in Treffléan is January, with an average of 4.5h of sunshine.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 3 in January translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Treffléan, January is the month with the lowest recorded average temperatures, measuring a high of 9.3°C (48.7°F) and a low of 5.8°C (42.4°F).

In Treffléan, in January, the average high-temperature is 9.3°C (48.7°F), and the average low-temperature is 5.8°C (42.4°F).

January and December, with an average relative humidity of 83%, are most humid months in Treffléan, France.

The average relative humidity in January is 83%.

In Treffléan, in January, during 17.7 rainfall days, 62mm (2.44") of precipitation is typically accumulated.

In Treffléan, snow does not fall in January, March, May through November.

In January, in Treffléan, France, it doesn't snow. December is the latest month when it typically snows.

In Treffléan, the average day length in January is 8h and 56min.

In January, on the first day of the month, sunrise is at 08:58 and sunset at 17:28. On the last day of the month, sunrise is at 08:38 and sunset at 18:08 CET.

The month with the least sunshine is January, with an average of 4.5h of sunshine.

The average sunshine duration in January in Treffléan, France, is 4.5h.

January through April, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

In January, the average daily maximum UV index in Treffléan is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

10.5°C

9.3°C

9.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

24.4km/h

23.8km/h

23.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.4

11.2

11.3

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Treffléan, France

Average high temperature in January: 9.3°C

The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (9.3°C).

Average low temperature in January: 5.8°C

The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).

Average pressure in January
Treffléan, France

Average pressure in January: 1017.8mbar

The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013mbar).

Average wind speed in January
Treffléan, France

Average wind speed in January: 22.5km/h

The windiest month (with the highest average wind speed) is December (22.9km/h).
The calmest month (with the lowest average wind speed) is August (15.5km/h).

Average humidity in January
Treffléan, France

Average humidity in January: 83%

The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are August and September (78%).

Average rainfall in January
Treffléan, France

Average rainfall in January: 62mm

The wettest month (with the highest rainfall) is November (81mm).
The driest month (with the least rainfall) is September (24mm).

Average rainfall days in January
Treffléan, France

Average rainfall days in January: 17.7 days

The month with the highest number of rainy days is January (17.7 days).
The month with the least rainy days is September (10 days).

Average snowfall in January
Treffléan, France

Average snowfall in January: 0mm

The months with the highest snowfall are February, April and December (1mm).
The months with the least snowfall are January, March, May, June, July, August, September, October and November (0mm).

Average snowfall days in January
Treffléan, France

Average snowfall days in January: 0.2 days

The month with the highest number of snowfall days is February (0.5 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
Treffléan, France

Average daylight in January: 8h and 54min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

Average sunshine in January: 4h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in January
Treffléan, France

Average sunshine days in January: 11.2 days

The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is November (10.4 days).

Average UV index in January
Treffléan, France

Average UV index in January: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).

Average cloud cover in January
Treffléan, France

Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in January
Treffléan, France

Average visibility in January: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).