May weather forecastBrest, France

May

Weather in May

The last month of the spring, May, is a refreshing month in Brest, France, 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

May brings a slight rise in Brest's average high-temperature, moving from a mild 13.2°C (55.8°F) in April to a still refreshing 16.2°C (61.2°F). In Brest, an average nighttime temperature of 8.9°C (48°F) is expected during May.

Humidity

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

Rainfall

In May, in Brest, France, the rain falls for 11.3 days. Throughout May, 79mm (3.11") of precipitation is accumulated. Throughout the year, in Brest, there are 159 rainfall days, and 1210mm (47.64") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows. Throughout May, there are 0.1 snowfall days. Throughout the year, there are 8.4 snowfall days.

Sea temperature

In Brest, France, in May, the average water temperature is 13.2°C (55.8°F).
Note: Entering waters of 13.2°C (55.8°F) is life-endangering. A mere moment in 13°C (55.4°F) waters feels piercing cold, and below 10°C (50°F) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.

Daylight

In Brest, the average length of the day in May is 15h and 14min.
On the first day of May in Brest, sunrise is at 06:57 and sunset at 21:32. On the last day of the month, sunrise is at 06:21 and sunset at 22:10 CEST.

Sunshine

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

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

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

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

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

In Brest, in May, it is raining for 11.3 days, with typically 79mm (3.11") of accumulated precipitation.

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

In Brest, France, in May, the average water temperature is 13.2°C (55.8°F). 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.

In May, the average day length in Brest, France, is 15h and 14min.

In May, on the first day of the month, sunrise is at 06:57 and sunset at 21:32. On the last day of the month, in Brest, France, sunrise is at 06:21 and sunset at 22:10 CEST.

The average sunshine duration in May in Brest is 5.8h.

The average daily maximum UV index in May in Brest is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Apr

May

Jun

Average high temperature

13.2°C

16.2°C

18.7°C

Average low temperature

Average humidity

Average rainfall

Average rainfall days

11.3

8.6

Average snowfall days

0.5

0.1

Average sea temperature

Average daylight

Average sunshine

Average UV index

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

The 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%

The months with the highest relative humidity are January, October and December (86%).
The 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).
The 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: 15h and 12min

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 May: 5h and 48min

The month with the most sunshine is June (Average sunshine: 6h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).

Average UV index in May
Brest, France

Average UV index in May: 6

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