January weather forecast
Fontenay-lès-Briis, France

January

Weather in January

January, the same as December, is another cold winter month in Fontenay-lès-Briis, France, with an average temperature varying between 5.8°C (42.4°F) and 1.6°C (34.9°F).

Temperature

In Fontenay-lès-Briis, the month of January is known for its lowest average temperatures, reaching a high of 5.8°C (42.4°F) and a low of 1.6°C (34.9°F).

Humidity

January and December, with an average relative humidity of 86%, are the most humid months.

Rainfall

In Fontenay-lès-Briis, in January, it is raining for 12.6 days, with typically 19mm (0.75") of accumulated precipitation. In Fontenay-lès-Briis, France, during the entire year, the rain falls for 156.2 days and collects up to 318mm (12.52") of precipitation.

Snowfall

Months with snowfall in Fontenay-lès-Briis are January through March, November and December. The months with the most snowfall in Fontenay-lès-Briis are January, March and December, with an average 18mm (0.71") of accumulated snow.

Daylight

In January, the average length of the day in Fontenay-lès-Briis is 8h and 50min.
On the first day of the month, sunrise is at 08:43 and sunset at 17:05. On the last day of January, sunrise is at 08:22 and sunset at 17:46 CET.

Sunshine

With an average of 3.8h of sunshine, January has the least sunshine of the year in Fontenay-lès-Briis.

UV index

The months with the lowest UV index in Fontenay-lès-Briis, France, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 2 in January leads to these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What time of the year is the coldest in Fontenay-lès-Briis?
January, on average, is the coldest month, registering a high temperature of 5.8°C (42.4°F) and a low of 1.6°C (34.9°F).
Is January cold in Fontenay-lès-Briis?
The average high-temperature and low-temperature in Fontenay-lès-Briis, France, during January are 5.8°C (42.4°F) and 1.6°C (34.9°F) respectively.
What is the most humid month in Fontenay-lès-Briis?
January and December, with an average relative humidity of 86%, are most humid months.
What is the average humidity in January in Fontenay-lès-Briis?
In Fontenay-lès-Briis, the average relative humidity in January is 86%.
How much does it rain in Fontenay-lès-Briis in January?
In Fontenay-lès-Briis, in January, during 12.6 rainfall days, 19mm (0.75") of precipitation is typically accumulated.
What is the snowiest month in Fontenay-lès-Briis?
The months with the most snowfall are January, March and December, with an average 18mm (0.71") of accumulated snow.
How much does it snow in Fontenay-lès-Briis in January?
In January, in Fontenay-lès-Briis, it is snowing for 3.2 days. Throughout January, 18mm (0.71") of snow is accumulated.
How many hours of daylight does Fontenay-lès-Briis have in January?
The average day length in January is 8h and 50min.
When are sunrise and sunset in January in Fontenay-lès-Briis?
On the first day of January in Fontenay-lès-Briis, sunrise is at 08:43 and sunset at 17:05. On the last day of the month, sunrise is at 08:22 and sunset at 17:46 CET.
What is the month with the least sunshine in Fontenay-lès-Briis?
With an average of 3.8h of sunshine, January has the least sunshine of the year in Fontenay-lès-Briis.
How many hours of sunshine does Fontenay-lès-Briis have in January?
The average sunshine duration in January in Fontenay-lès-Briis is 3.8h.
When is the lowest UV index in Fontenay-lès-Briis?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the UV index reading in January in Fontenay-lès-Briis?
In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Fontenay-lès-Briis, France
  • Average high temperature in January: 5.8°C

The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (5.8°C).

  • Average low temperature in January: 1.6°C

The months with the highest average low temperature are July and August (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (1.6°C).

Average pressure in January
Fontenay-lès-Briis, France
  • Average pressure in January: 1017.6mbar

The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).

Average wind speed in January
Fontenay-lès-Briis, France
  • Average wind speed in January: 15km/h

The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

Average humidity in January
Fontenay-lès-Briis, France
  • Average humidity in January: 86%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).

Average rainfall in January
Fontenay-lès-Briis, France
  • Average rainfall in January: 19mm

The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (15mm).

Average rainfall days in January
Fontenay-lès-Briis, France
  • Average rainfall days in January: 12.6 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is September (9.6 days).

Average snowfall in January
Fontenay-lès-Briis, France
  • Average snowfall in January: 18mm

The months with the highest snowfall are January, March and December (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in January
Fontenay-lès-Briis, France
  • Average snowfall days in January: 3.2 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 daylight in January /
Average sunshine in January
Fontenay-lès-Briis, France
  • Average daylight in January: 8h and 5min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in January: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in January
Fontenay-lès-Briis, France
  • Average sunshine days in January: 13.4 days

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in January
Fontenay-lès-Briis, France
  • Average UV index in January: 2

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, November and December (UV index 2).

Average cloud cover in January
Fontenay-lès-Briis, France
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 38).

Average visibility in January
Fontenay-lès-Briis, 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).

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