SaintMalo

Planning your day in Saint-Malo? Check out the latest weather updates, forecasts, and helpful charts right here.

The climate in Saint-Malo can be described as temperate maritime. The city does not experience sharp temperature fluctuations: winters here are quite mild, and summers are pleasantly warm without sweltering heat. Average annual temperatures make Saint-Malo an attractive destination across various seasons, though weather conditions do change noticeably throughout the year.

Saint-Malo has four distinct seasons. Summer, from June to August, is the warmest period with average temperatures around 16-18.4°C and the fewest rainy days. Winter, spanning December, January, and February, brings cooler weather with average temperatures ranging from 7.5-8.7°C and is characterized by the highest number of days with precipitation. Spring and autumn serve as transitional seasons with gradual changes in temperature and rainfall, offering comfortable conditions for walking and sightseeing.

A notable feature of the weather in Saint-Malo is that while the monthly rainfall volume is relatively low (2-4 mm), the number of days when precipitation is possible is quite significant, especially during the autumn-winter period (October to March), when rainy days range from 13 (in February) to 18 days per month. This means that light rain or drizzle can be a frequent occurrence, so tourists should be prepared for changeable weather.

The climate in Saint-Malo is characterized by moderate temperatures throughout the year without sharp extremes, which is typical of the maritime climate of France. The warmest month is usually August, when the average air temperature is 18.4°C and maximum daytime values can reach a pleasant 20.8°C. The coolest month is traditionally January: the average temperature at this time drops to 7.5°C, and night minimums are around 5.9°C. The annual temperature cycle is quite smooth, making the city comfortable to visit in various seasons.

Summer months in Saint-Malo, covering the period from June to August, offer guests and residents pleasantly warm weather. Daytime highs during this time range from 18.7°C in June to 20.8°C in August, creating ideal conditions for coastal walks and sightseeing. Winter, from December to February, is notably mild here. Average air temperatures stay in the range of 7.5°C to 8.7°C, and night values rarely drop significantly below 5-7°C, indicating an absence of severe or prolonged frosts. This makes winter strolls through the city quite comfortable.

Data analysis shows that daily temperature fluctuations in Saint-Malo are small. The difference between average daily maximums and average nightly minimums throughout the year is usually between 3 and 5 degrees Celsius (for example, in January the difference is 3.3°C, in August – 4.8°C). This points to the significant moderating influence of the Atlantic Ocean, which prevents both heavy daytime overheating and sharp nightly cooling. Thus, the temperature regime in the city remains relatively stable throughout the day.

In Saint-Malo, precipitation occurs throughout the year, though its intensity and frequency vary by season. There is no pronounced dry season, but there are periods with more or fewer rainy days and precipitation volumes.

The highest amount of precipitation, according to average monthly data, occurs during the autumn-winter period. October, November, and December are the wettest months, with 4 mm of precipitation each. December also leads in the number of rainy days – about 18. January and September are also quite wet, with 3 mm of precipitation and 17 and 13 rainy days, respectively. During these months, rain can be frequent, but based on the total volume, it is likely not too intense.

The period from February to August is characterized by less precipitation – an average of 2 mm per month. Despite this, the number of rainy days remains significant. For example, in April, May, July, and August, there are about 11 rainy days, 13 in February, and 16 in March. This indicates that Saint-Malo is characterized by frequent but likely light or drizzly rain even in relatively "dry" months. Given the average monthly temperatures, precipitation mostly falls as rain; snow is unlikely.

When planning a trip to Saint-Malo, it is important to consider its changeable coastal climate, which brings frequent winds and the possibility of precipitation throughout the year. The key advice is to dress in layers. Even if the monthly rainfall is low, the number of "wet days" (from 11 to 18 per month) suggests that a light waterproof and windproof jacket or raincoat will be an indispensable companion. Comfortable walking shoes are absolutely essential for exploring the cobbled streets of the old town and walking along the coast.

During the summer months (June-August), when average temperatures are a comfortable 16-18°C (peaking around 20-21°C), T-shirts, light trousers, or skirts will be useful. However, don't forget to bring a sweater or a fleece for cool evenings or windy days. Sunscreen and a hat will also come in handy. From late autumn to early spring (October-April), when average temperatures range from 7°C to 14°C, your wardrobe should include warm sweaters, trousers, a windproof jacket, as well as a hat, scarf, and gloves, especially in the winter months (December-February). An umbrella can be useful, but in windy weather, a good jacket with a hood often proves to be a more practical solution.