May Weather in Saint-Malo, France

Last updated: February 26, 2025

In Saint-Malo, France, the weather in May presents a delightful mix of mild temperatures and occasional rain. With a maximum temperature of 21°C (71°F) and an average of 13°C (56°F), visitors can enjoy pleasant outdoor activities amid the coastal charm. However, prepare for cooler nights with a minimum temperature of 8°C (46°F). Rainfall is not uncommon this month, with 67 mm (2.6 in) of precipitation spread over 11 days, contributing to an overall humidity level of 80% that enhances the atmosphere. Whether strolling through historic streets or relaxing by the beach, May in Saint-Malo offers a refreshing coastal experience.

May Temperature in Saint-Malo

In May, Saint-Malo experiences a delightful transition into warmer weather, with temperatures rising significantly compared to the earlier months. The minimum temperature sits comfortably at 8°C (46°F), while the average reaches a pleasant 13°C (56°F). This month marks a notable leap with the maximum temperature peaking at 21°C (71°F), inviting both locals and tourists to enjoy outdoor activities and stunning coastal views. As spring unfurls, the once-cool air gives way to milder evenings and sunny days, making May an ideal time to explore this historic French port city. The upward trend in temperatures hints at the approaching summer, creating a vibrant atmosphere perfect for leisurely strolls along the beautiful beaches and charming streets of Saint-Malo.

May Weather in Saint-Malo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Saint-Malo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464748515560646463595249
Data source: Temperature data for Saint-Malo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Saint-Malo

In May, Saint-Malo experiences a moderate shift in precipitation, with 67 mm (2.6 in) of rain falling over approximately 11 days. This marks a noticeable increase from the drier days of April, which saw only 40 mm across just 8 days. The trend indicates that while spring is blooming, May brings a welcomed balance of sunshine and rain, contributing to the lush coastal landscape. As the month transitions into summer, precipitation begins to stabilize, leading into a slightly wetter June, albeit with similar rain days. This pattern underscores May's role as a bridge between the freshness of spring and the onset of summer, creating an enchanting atmosphere characterized by vibrant greenery and the rhythmic sound of gentle rains.

May Precipitation Trends in Saint-Malo

The chart displays monthly precipitation patterns in Saint-Malo, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec889070406774466386140122164
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Saint-Malo

As spring gives way to summer, May in Saint-Malo presents a notable decline in humidity, dropping to a comfortable 80% from the higher levels experienced in earlier months. This marks a significant decrease from the 90% humidity in January and a steady reduction through the spring months, showcasing a trend towards fresher air as warmer weather approaches. Interestingly, this level of humidity remains consistent into June, creating a pleasant atmosphere for outdoor activities. However, as the year progresses into the hotter summer months, humidity further decreases, highlighting May as a transitional month where residents and visitors can enjoy the beauty of the coast without the intense mugginess that often characterizes other times of the year.

May Average Humidity in Saint-Malo

This chart illustrates the average monthly humidity levels in Saint-Malo, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%86%85%80%80%69%73%79%89%92%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Saint-Malo

As spring transitions into summer, May in Saint-Malo, France signals a noteworthy shift in sun exposure. With a UV Index of 8, the city experiences a very high exposure category, reducing the safe burn time to just 15 minutes. This marks a significant progression from the earlier months, where the UV levels were moderate and burn times were more forgiving. From a UV Index of 6 in April, May's increase highlights the need for extra caution and protection against harmful rays. As temperatures rise and the sun shines brighter, visitors and locals alike should remain vigilant to enjoy the beautiful weather safely. Discover more about the UV Index throughout the year at Saint-Malo UV Index.

Maximum UV Index Levels in Saint-Malo for May

The chart shows the monthly maximum UV Index (UVI) for Saint-Malo in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Saint-Malo May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Saint-Malo

May in Saint-Malo, France, heralds the arrival of abundant sunshine, with 406 hours of glorious daylight washing over this historic coastal town. This month continues an upward trajectory from the colder months, showcasing a remarkable increase from 352 hours in April. The trend of brightening days is indicative of the vibrant transition into summer, where the sun gradually reigns supreme, peaking in July with 424 hours. As visitors stroll along the picturesque shores, the warmth of May's sun not only enhances the beauty of Saint-Malo but also invites locals and tourists alike to indulge in outdoor activities, basking in the joyful anticipation of the sunnier months ahead.

Monthly Sunshine Duration in Saint-Malo: May Highlighted

The May sunshine duration represents the total number of hours Saint-Malo experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec141h203h285h352h406h394h424h386h329h268h221h186h
Data source: Saint-Malo May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint-Malo During May

As spring unfolds in Saint-Malo, May presents a blend of traditionally sunnier days compared to the earlier months of the year. The chance of sun, while holding at a respectable 38%, reflects a dip from the peak sunshine of April at 62%. This slight decline doesn't overshadow the emerging warmth; rather, it hints at the variability typical of early summer weather. Notably, the month still outperforms the gloomy winter months of January and February, emphasizing the transition toward brighter days. As the coastal charm of Saint-Malo beckons, those planning May visits can expect a delightful mix of sun and clouds, adding to the allure of this beautiful French town.

Percentage of Sunny Days in May in Saint-Malo

The chart illustrates the percentage of sunny days in Saint-Malo throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Saint-Malo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%31%45%62%38%36%47%41%44%40%34%25%
Data source: Saint-Malo May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint-Malo in May

As spring transitions into summer, Saint-Malo, France, basks in the increasing daylight duration that paints the city in vibrant hues and lively energy. Beginning with 8 hours of daylight in January, the sun gradually awakens the landscape, gifting inhabitants and visitors an additional 7 hours by the end of May. In this enchanting month, Saint-Malo enjoys a generous 15 hours of daylight, offering ample time to explore its historic streets and stunning coastline. June takes the lead with the longest days, basking in 16 hours of sunlight, before a gentle decline begins in July and August. This rhythmic ebb and flow of daylight not only enhances the beauty of the region but also enriches the experience, inviting all to embrace the radiance of each season.

Average Daylight Hours in Saint-Malo for May

The chart illustrates the variation in daylight duration in Saint-Malo throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 46m10h 11m11h 55m13h 43m15h 15m16h 3m15h 38m14h 15m12h 31m10h 45m9h 10m8h 20m
Data source: Saint-Malo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Saint-Malo

In Saint-Malo, May ushers in a gentle breeze, with an average wind speed of 7.0 m/s (16 mph), striking a delightful balance between the brisk winds of winter and the calmer summer months. This slight uptick from the spring lows of 6.3 m/s (14 mph) in April reflects a transitional phase where the coastal charm of the region begins to awaken, encouraging leisurely strolls along the stunning Promenade du Sillon. As the month progresses, the winds steadily decrease, leading into a more tranquil June, which averages just 4.6 m/s (10 mph). Overall, May serves as a refreshing prelude to the summer season, where the wind plays a playful yet inviting role in the picturesque maritime landscape of this historic town.

Average May Wind Speed in Saint-Malo

The chart displays monthly wind speed patterns in Saint-Malo, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.97.46.46.37.0 m/s4.65.55.95.36.56.47.8
Data source: Saint-Malo May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Saint-Malo Compares to Other Months

The weather in Saint-Malo changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Saint-Malo and find detailed weather information for every month.

When comparing the weather in May and January, notable differences emerge in both temperature and precipitation. In May, temperatures range from a minimum of 8°C (46°F) to a pleasant maximum of 21°C (71°F), making it generally warmer than January, where temperatures peak at 14°C (58°F) and drop to a chilly 1°C (34°F). May experiences an average temperature of 13°C (56°F), while January's average is significantly lower at 8°C (47°F). Precipitation also varies, with January receiving more rainfall at 88 mm (3.5 in) over 14 days, compared to May's 67 mm (2.6 in) across 11 days. Furthermore, January has a higher humidity level at 90%, compared to May's 80%. For those interested in a more detailed look at January's conditions, you can visit Saint-Malo weather in January.

May generally offers more pleasant weather compared to February, with a minimum temperature of 8°C (46°F) and an average high of 21°C (71°F). In contrast, February's temperatures are much colder, with a minimum of -1°C (30°F) and a maximum of 14°C (57°F). Although May experiences slightly lower precipitation at 67 mm (2.6 in) over 11 days, February sees more rainfall, totaling 90 mm (3.5 in) across 15 days. Additionally, February's humidity is higher at 89%, compared to May's 80%. For more details on February weather, you can visit Saint-Malo weather in February.

The weather in May is notably milder than in March, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 21°C (71°F). In contrast, March experiences colder conditions, with temperatures dipping as low as -2°C (29°F) and reaching a maximum of 16°C (60°F). Both months see significant precipitation, with May recording 67 mm (2.6 in) over 11 days and March slightly higher at 70 mm (2.8 in) over 15 days. Additionally, humidity levels are slightly lower in May at 80%, compared to March’s 86%. For more detailed information, you can visit Saint-Malo weather in March.

When comparing the weather in April and May, it is evident that May tends to be warmer and slightly wetter. In April, temperatures range from a minimum of 5°C (42°F) to a maximum of 18°C (64°F), with an average temperature of 11°C (51°F). In contrast, May sees a milder temperature range, with minimums of 8°C (46°F), averages of 13°C (56°F), and maximums reaching 21°C (71°F). While April experiences about 40 mm (1.6 in) of precipitation over 8 days, May brings a greater total of 67 mm (2.6 in), spread over 11 days. Despite this increase in rainfall, May's slightly lower humidity at 80% compared to April's 84% may contribute to a more comfortable feel. For those interested in detailed climate data, you can check Saint-Malo weather in April.

May and June both feature similar levels of humidity at 80%, but June generally enjoys warmer temperatures. In May, temperatures range from a minimum of 8°C (46°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F). In contrast, June sees a minimum of 12°C (53°F) and can reach up to 27°C (80°F), averaging around 16°C (61°F). However, June experiences slightly more precipitation at 74 mm (2.9 in) over the same number of days as May, which has 67 mm (2.6 in) of rain. For more details, you can check Saint-Malo weather in June.

The weather in May is generally cooler and wetter compared to July. With average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 21°C (71°F), May experiences more frequent rainfall, totaling 67 mm (2.6 in) over about 11 days, and higher humidity levels at 80%. In contrast, July boasts warmer temperatures, with a minimum of 14°C (57°F) and a maximum reaching up to 28°C (83°F). Additionally, July sees less precipitation, totaling 46 mm (1.8 in) across just 9 days, and a more comfortable humidity level of 69%. For more detailed information, you can check Saint-Malo weather in July.

May and August in Saint-Malo present contrasting weather experiences. In May, temperatures range from a chilly minimum of 8°C (46°F) to a comfortable maximum of 21°C (71°F), with an average of 13°C (56°F). The month sees about 67 mm (2.6 in) of precipitation spread over 11 days and higher humidity at 80%. In contrast, August enjoys warmer temperatures, with a minimum of 14°C (57°F) and a maximum reaching 25°C (77°F), averaging 18°C (65°F). The precipitation is slightly lower at 63 mm (2.5 in) over the same number of rainy days, accompanied by a more pleasant humidity level of 73%. For more details on the August weather, you can check this link: Saint-Malo weather in August.

In comparing the weather between May and September, there are noticeable differences in temperature and precipitation. May typically experiences cooler conditions with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 21°C (71°F). In contrast, September offers warmer weather, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 25°C (78°F). Precipitation levels are slightly higher in September, totaling 86 mm (3.4 in) compared to May's 67 mm (2.6 in), though both months see rain on about 11 days. Humidity remains relatively consistent, around 80% in May and slightly lower at 79% in September. For a detailed look at weather specifics, check out Saint-Malo weather in September.

In comparing the weather of May and October, we find some similarities and notable differences. Both months see a minimum temperature of around 8°C (46°F), but October tends to be slightly warmer with an average temperature of 15°C (59°F) compared to May's 13°C (56°F). Interestingly, the maximum temperature in both months remains the same at 21°C (71°F). However, October experiences significantly higher precipitation levels, with 140 mm (5.5 in) falling over about 17 days, while May receives only 67 mm (2.6 in) over 11 days. Additionally, October’s humidity is higher at 89% compared to May’s 80%. For more detailed insights, check out Saint-Malo weather in October.

May weather tends to be milder, with average temperatures ranging from a minimum of 8°C (46°F) to a pleasant maximum of 21°C (71°F). In contrast, November is cooler, featuring average temperatures from a minimum of 5°C (41°F) to a maximum of 17°C (63°F). Additionally, May experiences less precipitation, totaling 67 mm (2.6 in) over about 11 days, whereas November sees significantly more rainfall at 122 mm (4.8 in) across 16 days. The humidity also rises in November, averaging 92% compared to May's 80%. For a more detailed look at November weather, check out Saint-Malo weather in November.

May and December showcase distinct weather patterns. In May, temperatures range from a minimum of 8°C (46°F) to an average of 13°C (56°F), peaking at a comfortable 21°C (71°F). The month sees relatively moderate precipitation of 67 mm (2.6 in) over 11 days and a humidity level of 80%. In contrast, December experiences cooler temperatures, with a minimum of 3°C (37°F), an average of 9°C (49°F), and a maximum of 14°C (57°F). It is also significantly wetter, with precipitation totaling 164 mm (6.4 in) spread over 20 days and higher humidity at 92%. For more details on December conditions, visit Saint-Malo weather in December.

Compare Saint-Malo's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Saint-Malo

As May unfolds in Saint-Malo, the weather starts to transition into a pleasantly mild atmosphere, setting it apart from the chillier months of early spring. While temperatures reach a comfortable peak of 21°C (71°F), the average temperature remains a refreshingly cool 13°C (56°F), inviting visitors to enjoy the blooming landscapes. Although the month experiences an average of 11 days of rain totaling approximately 67 mm (2.6 in), the 80% humidity adds a touch of freshness to the air. This blend of warmth and occasional showers creates a vibrant environment, perfect for exploring the historical charm of this coastal town. To delve deeper into how the weather shapes your visit, explore the details at Saint-Malo Climate.