Weather in St Malo, Brittany, France in September

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Visiting St Malo, Brittany, France in September

September is one of the best months to visit St Malo for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in September is marginally cooler than the previous month and temperatures continue to drop into October. September has average maximum temperatures of 21°C (69°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

September has total rainfall of 0.1cm (0.0inches) making it mostly dry with very rare light showers although there are 15.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.

Sea temperatures are a cool 20°C (68°F). September is a slightly chilly month for swimming in St Malo. The sea temperature in September is cooler than the previous month and temperatures continue to drop into October.

In September, the weather in St Malo remains warm and sunny, though the temperatures start to cool down slightly. The sea is still warm enough for swimming and sunbathing, and water sports such as snorkeling, diving, windsurfing, and kitesurfing remain popular. Also consider visiting St Malo in one of the other best months of June, July, August, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in St Malo in September?

Yes, September is not an optimal time for sunbathing but it is possible on clearer days in St Malo.

September has average maximum temperatures of 21°C (69°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day. September has total rainfall of 0.1cm (0.0inches) making it mostly dry with very rare light showers although there are 15.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.

More about September temperature and sunshine.

Can you swim in St Malo in September?

Yes, September is a a slightly chilly month for swimming in St Malo with cool sea temperatures 20°C (68°F).

More about September sea temperatures.

Is September a good time to holiday in St Malo?

Yes, September is a good time for a holiday in St Malo.

September has average maximum temperatures of 21°C (69°F) which is nice and warm and makes sunbathing pleasant on clear days. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day. September has total rainfall of 0.1cm (0.0inches) making it mostly dry with very rare light showers although there are 15.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much. Sea temperatures are a cool 20°C (68°F). September is a slightly chilly month for swimming in St Malo.

More about the September temperatures and sunshine.

Is St Malo warm in September?

Yes, St Malo is nice and warm and makes sunbathing pleasant on clear days in September.

The average maximum temperature in St Malo in September is 21°C (69°F). The average maximum temperature is 22°C (71°) in the previous month and 17°C (63°F) in the next month.

The average temperature in St Malo in September is 16°C (61°F). The average temperature is 17°C (63°F) in the previous month and 14°C (56°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is St Malo in September?

The average day light hours per day in St Malo in September are 12.6. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

More about September sunshine.

Crowds in St Malo in September

In September, the crowds start to decrease as schools resume and the weather begins to cool down. However, the beach can still be quite busy, especially during the first half of the month, as some people take advantage of the last days of summer.

Temperature in St Malo in September

The weather in September is marginally cooler than the previous month and temperatures continue to drop into October. The average maximum temperature in St Malo in September is 21°C (69°F). The average maximum temperature is 22°C (71°F) in the previous month and 17°C (63°F) in the next month.

The average temperature in St Malo in September is 16°C (61°F). The average temperature is 17°C (63°F) in the previous month and 14°C (56°F) in the next month.

The average minimum temperature in St Malo in September is 12°C (53°F). The minimum temperature is 13°C (56°F) in the previous month and 10°C (51°F) in the next month.

Sunshine in St Malo in September

The days in September are shorter than the previous month and days continue to get shorter into October. September has far fewer hours of sunshine than the previous month and hours of sunshine continue to drop quickly into October. During September the average day light hours are 12.6 per day in St Malo. The sunshine percentage is 45% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.7 hours of sunshine per day.

The ultraviolet index in St Malo in September is typically 4.8 during September. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in St Malo in September

The average sea water temperature in St Malo in September is 20°C (68°F) which is comfortable for swimming though some may prefer warmer water. The sea temperature in September is cooler than the previous month and temperatures continue to drop into October.

Rainfall in St Malo in September

September weather is slightly drier than the previous month. September has fewer days of rain than the previous month. The average total rainfall in St Malo in September is 0.1cm (0.0inches) and on average there are 15.2 rainy days in September making it a wet time to visit the beach.

Humidity in St Malo in September

The maximum dew point (an indicator of humidity) in St Malo in September is 15°C (58°F) which is comfortable for everyone. The dew point is 16°C (60°F) in the previous month and 13°C (13°F) in the next month.

The average maximum relative humidity in St Malo in September is typically 96.7%. The maximum relative humidity is 96% in the previous month and 96.6% in the next month.

The average relative humidity in St Malo in September is typically 80.3%. The average relative humidity is 79.4% in the previous month and 83.6% in the next month.

Wind Speed in St Malo in September

The average maximum wind speed in St Malo in September is typically 23KM/H (14MPH). The average maximum wind speed is 25KM/H (15MPH) in the previous month and 25KM/H (15MPH) in the next month.

The average wind speed in St Malo in September is typically 13KM/H (8MPH). The average wind speed is 13KM/H (8MPH) in the previous month and 14KM/H (9MPH) in the next month.

The average wind direction in St Malo in September is from the West.

Monthly Averages

Suggested Beaches in September

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Need Inspiration?

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