Brest
France
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Brest, France

December, the first month of the winter, in Brest, is still a chilly month, with average temperature fluctuating between 9.9°C (49.8°F) and 4.8°C (40.6°F).

Temperature

In December, the average high-temperature is practically the same as in November - a frosty 9.9°C (49.8°F). The average low-temperature, in Brest, is 4.8°C (40.6°F).

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 17.2 days and accumulates 147.8mm (5.82") of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Brest, during December, snow falls for 1.2 days. In Brest, during the entire year, snow falls for 8.4 days.

Sea temperature

In Brest, the average water temperature is 12.7°C (54.9°F).
Note: Swimming in 12.7°C (54.9°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The month with the shortest days in Brest is December, with an average of 8.4h of daylight.

Sunshine

The average sunshine in December is 2.1h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Brest. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 1 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Brest?

In Brest, France, in December, the average high-temperature is 9.9°C (49.8°F), and the average low-temperature is 4.8°C (40.6°F).

What is the most humid month in Brest?

Months with the highest humidity in Brest are January, October and December, with an average relative humidity of 86%.

What is the average humidity in December in Brest?

In December, the average relative humidity in Brest is 86%.

How much does it rain in Brest in December?

In December, in Brest, France, the rain falls for 17.2 days. Throughout December, 147.8mm (5.82") of precipitation is accumulated.

What is the rainiest month in Brest?

December is the month with the most rainfall in Brest, France. Rain falls for 17.2 days and accumulates 147.8mm (5.82") of precipitation.

How many days does it snow in December in Brest?

In December, in Brest, France, snow falls for 1.2 days.

How cold is the water in December in Brest?

In December, the average sea temperature in Brest, France, is 12.7°C (54.9°F). Swimming in 12.7°C (54.9°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days in Brest?

The month with the shortest days is December, with an average of 8.4h of daylight.

How many hours of daylight does Brest have in December?

In December, the average length of the day is 8.4h.

How many hours of sunshine does Brest have in December?

In Brest, France, the average sunshine in December is 2.1h.

What are the months with the lowest UV index in Brest?

Months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

How high is the UV index in December in Brest?

In December, the average daily maximum UV index in Brest is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Brest, France
  • Average high temperature in December: 9.9°C

The warmest month (with the highest average high temperature) is August (20.8°C).
The month with the lowest average high temperature is January (9.3°C).

  • Average low temperature in December: 4.8°C

Months with the highest average low temperature are July and August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.1°C).

Average humidity in December - Brest, France
  • Average humidity in December: 86%

Months with the highest relative humidity are January, October and December (86%).
Months with the lowest relative humidity are April and May (81%).

Average rainfall in December - Brest, France
  • Average rainfall in December: 147.8mm

The wettest month (with the highest rainfall) is December (147.8mm).
The driest month (with the least rainfall) is June (59.8mm).

Average rainfall days in December - Brest, France
  • Average rainfall days in December: 17.2 days

The month with the highest number of rainy days is January (17.7 days).
The month with the least rainy days is June (8.6 days).

Average snowfall days in December - Brest, France
  • Average snowfall days in December: 1.2 days

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in December - Brest, France
  • Average sea temperature in December: 12.7°C

The best month for swimming (with the highest average sea temperature) is August (16.9°C).
The coldest month (with the lowest average sea temperature) is March (10.2°C).

Average daylight in December / Average sunshine in December - Brest, France
  • Average daylight in December: 8.4h

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in December: 2.1h

The month with the most sunshine is June (Average sunshine: 6.4h).
The month with the least sunshine is January (Average sunshine: 2h).

Average UV index in December - Brest, France
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, November and December (UV index 1).