, generally cool and wet, rainy and windy all year round, but especially in autumn and winter. However, there may also be sunny days, especially in summer.
The city is located in the north-west of France, on the northern coast of Brittany. On the other side of the estuary of the river Rance we find the city of Dinard. In the Gulf of Saint-Malo are the Channel Islands, belonging to Great Britain.
is milder than in the rest of northern France, because ocean currents prevail, and the wind often blows from the south. On the other hand, the sky is often cloudy, the humidity is high and there are periods when the wind blows moderate or strong. Rainfall is frequent.
Cold waves are shorter and less intense than in Paris and in the interior of France. However, there may occasionally be cold periods, in which the temperature drops below freezing, and it can even snow. Generally, the temperature does not drop below -6/-7 °C (19/21 °F) on the coldest days of the year, although it can sometimes drop to lower values. The coldest record is -13.7 °C (7.3 °F) and was set in January 1963.
, temperatures are mild or cool. It can also rain, but less often than in winter.
Hot days are rare: generally, the temperature reaches 29/30 °C (84/86 °F) on the warmest days of the year. Saint-Malo appears to be quite sheltered from the heat waves that are hitting France more frequently due to global warming. However, short hot periods, maybe just a day or two, cannot be ruled out. The highest record is 40 °C (104 °F), set in July 2022. The previous record was 39.4 °C (102.9 °F) and was set in August 2003.
to visit Saint-Malo runs from mid-May to mid-September, since it is the mildest and sunniest period of the year. Sometimes, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket for the evening.
. Here are the average temperatures.
January, the coldest month of the year, is generally a quite cold month. The average temperature is of
6.5 °C, with a minimum of
3.8 °C and a maximum of
9.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-4.5 °C. However, it dropped to
-11.5 °C in January 1997.
On the warmest days of the month, the temperature usually reaches around
14 °C. However, it reached
15.7 °C in January 1993.
Precipitation amounts to
80 mm, distributed over 19 days.
The day lasts on average 8 hours and 50 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 25% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
18.2 kph.
The average sea temperature is of
10 °C. Therefore, the sea is very cold for swimming.
February is generally a quite mild month. The average temperature is of
6.8 °C, with a minimum of
3.6 °C and a maximum of
9.9 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-10 °C in February 1991.
On the warmest days of the month, the temperature usually reaches around
15 °C. However, it reached
21 °C in February 2019.
Precipitation amounts to
70 mm, distributed over 15 days.
The day lasts on average 10 hours and 10 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 29% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
18.2 kph.
The average sea temperature is of
9 °C. Therefore, the sea is very cold for swimming.
March is generally a mild month. The average temperature is of
8.6 °C, with a minimum of
4.9 °C and a maximum of
12.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-2 °C. However, it dropped to
-5.1 °C in March 2004.
On the warmest days of the month, the temperature usually reaches around
19 °C. However, it reached
23 °C in March 2005.
Precipitation amounts to
65 mm, distributed over 17 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
17 kph.
The average sea temperature is of
9 °C. Therefore, the sea is very cold for swimming.
April is generally a mild month. The average temperature is of
10.4 °C, with a minimum of
6.2 °C and a maximum of
14.5 °C.
On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-2 °C in April 1996.
On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
27.1 °C in April 2018.
Precipitation amounts to
50 mm, distributed over 15 days.
The day lasts on average 13 hours and 50 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
16 kph.
The average sea temperature is of
10 °C. Therefore, the sea is very cold for swimming.
May is generally a mild month. The average temperature is of
13.2 °C, with a minimum of
9.1 °C and a maximum of
17.3 °C.
On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
1.2 °C in May 1996.
On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
29.2 °C in May 2005.
Precipitation amounts to
55 mm, distributed over 15 days.
The day lasts on average 15 hours and 20 minutes. So the days are long.
There are on average 6 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
15.1 kph.
The average sea temperature is of
12 °C. Therefore, the sea is very cold for swimming.
June is generally a very mild month. The average temperature is of
16 °C, with a minimum of
11.8 °C and a maximum of
20.2 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
4.8 °C in June 2001.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
34 °C in June 2019.
Precipitation amounts to
50 mm, distributed over 12 days.
The day lasts on average 16 hours and 5 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 7 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
14.6 kph.
The average sea temperature is of
14 °C. Therefore, the sea is very cold for swimming.
July is generally a very mild month. The average temperature is of
17.8 °C, with a minimum of
13.6 °C and a maximum of
22.1 °C.
On the coldest nights of the month, the temperature usually drops to around
9 °C. However, it dropped to
7.1 °C in July 2015.
On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
37.6 °C in July 2019.
Precipitation amounts to
40 mm, distributed over 11 days.
The day lasts on average 15 hours and 35 minutes. So the days are long.
There are on average 6.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
14.6 kph.
The average sea temperature is of
17 °C. Therefore, the sea is cold for swimming.
August, the warmest month of the year, is generally a very mild month. The average temperature is of
18 °C, with a minimum of
13.7 °C and a maximum of
22.3 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
6.9 °C in August 1998.
On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
39.4 °C in August 2003.
Precipitation amounts to
50 mm, distributed over 12 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 6.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
13.8 kph.
The average sea temperature is of
18 °C. Therefore, the sea is cold for swimming.
September is generally a very mild month. The average temperature is of
16 °C, with a minimum of
11.8 °C and a maximum of
20.3 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
4.5 °C in September 2002.
On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
32.4 °C in September 2020.
Precipitation amounts to
60 mm, distributed over 13 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
14 kph.
The average sea temperature is of
17 °C. Therefore, the sea is cold for swimming.
October is generally a mild month. The average temperature is of
13.1 °C, with a minimum of
9.7 °C and a maximum of
16.5 °C.
On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-4.2 °C in October 1997.
On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
29 °C in October 2011.
Precipitation amounts to
75 mm, distributed over 16 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
15.6 kph.
The average sea temperature is of
15 °C. Therefore, the sea is cold for swimming.
November is generally a mild month. The average temperature is of
9.5 °C, with a minimum of
6.6 °C and a maximum of
12.4 °C.
On the coldest nights of the month, the temperature usually drops to around
-0.5 °C. However, it dropped to
-6 °C in November 2010.
On the warmest days of the month, the temperature usually reaches around
17 °C. However, it reached
20.6 °C in November 2015.
Precipitation amounts to
95 mm, distributed over 18 days.
The day lasts on average 9 hours and 10 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 28% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
17.2 kph.
The average sea temperature is of
13 °C. Therefore, the sea is very cold for swimming.
December is generally a quite mild month. The average temperature is of
7 °C, with a minimum of
4.3 °C and a maximum of
9.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-7 °C in December 1996.
On the warmest days of the month, the temperature usually reaches around
14.5 °C. However, it reached
17 °C in December 2015.
Precipitation amounts to
90 mm, distributed over 19 days.
The day lasts on average 8 hours and 25 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 2 hours of sunshine per day. So, the sun shines 25% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
17.6 kph.
The average sea temperature is of
12 °C. Therefore, the sea is very cold for swimming.