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

May weather forecast and climate
Brest, France

May, the last month of the spring, in Brest, is an enjoyable month, with temperature in the range of an average low of 8.9°C (48°F) and an average high of 16.2°C (61.2°F).

Temperature

In May, the average high-temperature slightly increases, from a mild 13.2°C (55.8°F) in April, to an enjoyable 16.2°C (61.2°F). In Brest, the average low-temperature is 8.9°C (48°F).

Humidity

April and May, with an average relative humidity of 81%, are the least humid months.

Rainfall

In Brest, France, during 11.3 rainfall days, 79mm (3.11") of precipitation is typically accumulated. In Brest, France, during the entire year, the rain falls for 159 days and collects up to 1210mm (47.64") of precipitation.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows in Brest, France. Throughout May, there are 0.1 snowfall days. In Brest, during the entire year, snow falls for 8.4 days.

Sea temperature

In May, the average sea temperature in Brest is 13.2°C (55.8°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

In May, the average length of the day is 15.3h.

Sunshine

In Brest, France, the average sunshine is 5.8h.

UV index

The average daily maximum UV index in Brest is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Brest?

In May, the average high-temperature is 16.2°C (61.2°F), and the average low-temperature is 8.9°C (48°F).

What are the least humid months in Brest?

April and May, with an average relative humidity of 81%, are the least humid months in Brest, France.

What is the average humidity in May in Brest?

In May, the average relative humidity in Brest, France, is 81%.

How many days does it rain in May in Brest?

In May, in Brest, France, the rain falls for 11.3 days. Throughout May, 79mm (3.11") of precipitation is accumulated.

What is the last month it snows in Brest?

May is the last month it regularly snows. Throughout May, there are 0.1 snowfall days.

What is the water temperature in May in Brest?

In Brest, in May, the average water temperature is 13.2°C (55.8°F). Swimming in 13.2°C (55.8°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 average length of the day in May in Brest?

In May, the average length of the day in Brest, France, is 15.3h.

How long on average sun shines in May in Brest?

In Brest, France, the average sunshine in May is 5.8h.

What is the UV index reading in May in Brest?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in May - Brest, France
  • Average high temperature in May: 16.2°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 May: 8.9°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 May - Brest, France
  • Average humidity in May: 81%

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 May - Brest, France
  • Average rainfall in May: 79mm

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 May - Brest, France
  • Average rainfall days in May: 11.3 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 May - Brest, France
  • Average snowfall days in May: 0.1 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 May - Brest, France
  • Average sea temperature in May: 13.2°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 May / Average sunshine in May - Brest, France
  • Average daylight in May: 15.3h

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 May: 5.8h

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 May - Brest, France
  • Average UV index in May: 6

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).