May Weather in Vannes, France

Last updated: February 26, 2025

Vannes, France in May experiences a delightful blend of mild and warm weather, with maximum temperatures reaching up to 28°C (83°F) and an average of 14°C (58°F), making it an inviting destination for outdoor activities. Despite the pleasant warmth, the month does see cool dips to a minimum of 1°C (34°F), reminding visitors to dress in layers. Rainfall occurs on 12 days, accumulating to 68 mm (2.7 in), which contributes to the region's lush greenery. The humidity levels, sitting at a comfortable 82%, enhance the overall charm of this picturesque locale, making it an ideal time to explore the vibrant streets and stunning coastal scenery of Vannes.

May Temperature in Vannes

In Vannes, France, May marks a delightful transition into warmer days, with temperatures showcasing a significant rise from the chill of winter. The month begins with a minimum of 1°C (34°F), gradually elevating to an inviting average of 14°C (58°F), and peaking at a warm 28°C (83°F). This upward trend from the cooler April temperatures reflects the onset of spring, encouraging outdoor activities amidst blooming landscapes. As the days grow longer and sunnier, May becomes a vibrant prelude to the even hotter summer months ahead, promising a delightful experience for both locals and visitors alike.

May Weather in Vannes: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Vannes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444648525763666561564947
Data source: Temperature data for Vannes 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 Vannes

In May, Vannes experiences moderate precipitation, with a total of 68 mm (2.7 in) over 12 days, mirroring the wetter trend seen in spring. This amount is slightly higher than April’s 45 mm but less than the forthcoming June, indicating a gradual buildup towards the summer months. The consistent rainfall in May suggests a lush landscape as the region transitions into the vibrant early summer, a notable feature of its maritime climate. As the season progresses, expectations rise for the increased precipitation that typically characterizes the months ahead, with the rainy days in May offering a perfect backdrop for the blossoming flora in the area.

May Precipitation Trends in Vannes

The chart displays monthly precipitation patterns in Vannes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4970634568844850429175104
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Vannes

In Vannes, France, May brings a comfortable humidity level of 82%, mirroring the levels seen from January through April. This consistent humidity trend highlights the city's mild, maritime climate, creating a pleasant atmosphere as spring progresses into summer. Following May, humidity begins to dip slightly in June, reaching 80%, while the summer months of July and August see a further decrease, with levels falling to 77% and 78% respectively. This gradual decline into the warmer months suggests that although Vannes experiences a humid spring, residents can look forward to drier conditions as summer unfolds, making it an ideal time for outdoor activities and enjoying the picturesque surroundings.

May Average Humidity in Vannes

This chart illustrates the average monthly humidity levels in Vannes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%81%82%82%80%77%78%79%82%81%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Vannes

In May, Vannes experiences a significant rise in the UV Index, reaching a notable 8, indicating a very high exposure category. This marks a shift from the previous months, where the index was comparatively lower, peaking at 6 in April. As temperatures warm and the sun shines brighter, the burn time drastically decreases to just 15 minutes for unprotected skin, highlighting the importance of sun safety during this month. The trend shows a steady ascent towards the summer months, with June and July remaining at a 9 on the UV scale. This transition underscores the need for vigilance when enjoying the outdoors. For more details on sun exposure and safety tips, visit Vannes UV Index.

Maximum UV Index Levels in Vannes for May

The chart shows the monthly maximum UV Index (UVI) for Vannes 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986522
Data source: Vannes 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 Vannes

As spring transitions into summer, May in Vannes, France basks in the warm glow of 408 hours of sunshine, marking a delightful peak in daylight hours for the season. This vibrant month illustrates a clear upward trend in sunshine, following the gradual increase from 144 hours in January to 356 hours in April. With only slightly more sunshine in June (410 hours), May stands out as a time when the city truly comes alive, inviting locals and visitors alike to indulge in outdoor festivities and leisurely strolls along the picturesque coastline. The consistent rise in sunshine from early winter to late spring underscores Vannes' enchanting charm, making it a perfect destination as the days grow longer and brighter.

Monthly Sunshine Duration in Vannes: May Highlighted

The May sunshine duration represents the total number of hours Vannes 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.
JanFebMarAprMayJunJulAugSepOctNovDec144h204h298h356h408h410h427h399h335h277h227h189h
Data source: Vannes May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Vannes During May

In Vannes, France, May tends to be a month of mixed weather, with a 34% chance of sunny days. While this figure shows a notable dip compared to the sunniest months of April (57%) and March (47%), it still holds its ground better than the early months of the year. The trend indicates that as spring progresses, the likelihood of enjoying sunny weather increases, peaking in April before slightly tapering off in May. Interestingly, this decline continues into June, suggesting that while May might not promise the best sunshine, it remains a transitional period leading into the summer months, where clearer skies and warmer days often return.

Percentage of Sunny Days in May in Vannes

The chart illustrates the percentage of sunny days in Vannes 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 Vannes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%28%47%57%34%39%44%43%45%42%39%26%
Data source: Vannes May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Vannes in May

In Vannes, France, daylight duration experiences a remarkable transformation throughout the year, peaking during the vibrant month of May. Beginning with just 8 hours in January, the days gradually lengthen, with an impressive jump to 15 hours by May and June. This upward trend signifies the arrival of spring, where nature awakens under the sun's embrace. As summer unfolds, daylight remains steady at a maximum of 15 hours, providing ample opportunity for outdoor activities and enjoyment. However, as the year progresses into autumn, daylight begins to wane, dropping back down to 12 hours in September and further to 10 hours by October. The cycle culminates in winter, where the daylight is a mere 8 hours, reminding us of the fleeting beauty of sunlight throughout the seasons.

Average Daylight Hours in Vannes for May

The chart illustrates the variation in daylight duration in Vannes throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 54m10h 15m11h 56m13h 39m15h 8m15h 54m15h 30m14h 10m12h 30m10h 48m9h 16m8h 28m
Data source: Vannes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Vannes

In May, Vannes experiences a delightful breeze with an average wind speed of 5.1 m/s (11 mph), mirroring February's blustery peak. This refreshing gustiness enhances the vibrant atmosphere as the region blossoms into spring, making outdoor activities particularly enjoyable. Following the trend of gradually decreasing wind speeds through April, May stands out as a transitional month before the summer months, which typically bring calmer breezes. Interestingly, the winds begin to taper off significantly in June, dropping to 3.1 m/s (7 mph), creating a serene environment ideal for leisurely strolls along the scenic coastline. Overall, May's wind patterns not only invigorate the landscape but also set the stage for a lush, mellow summer ahead.

Average May Wind Speed in Vannes

The chart displays monthly wind speed patterns in Vannes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.45.14.34.15.1 m/s3.14.24.03.64.23.54.9
Data source: Vannes May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Vannes Compares to Other Months

The weather in Vannes 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 Vannes and find detailed weather information for every month.

When comparing the weather in May and January, we see a distinct contrast in temperatures and precipitation. May experiences milder conditions, with an average temperature of 14°C (58°F) and highs reaching up to 28°C (83°F), while January is much cooler, averaging only 7°C (44°F) and peaking at 15°C (59°F). Additionally, May has a higher amount of precipitation at 68 mm (2.7 in) spread over 12 days, compared to January's 49 mm (1.9 in) over 9 days. Interestingly, both months share the same humidity level of 82%, highlighting that while May may feel warmer, the moisture content in the air remains consistent. For more details, check out Vannes weather in January.

In comparing the weather between February and May, it's clear that May offers a warmer climate with average temperatures ranging from 1°C (34°F) to 28°C (83°F), compared to February's chilly range of -6°C (22°F) to 19°C (67°F). Both months experience similar levels of precipitation, with May recording 68 mm (2.7 in) and February slightly higher at 70 mm (2.8 in), while the humidity levels remain relatively close at 82% in May and 83% in February. For those interested in the specifics of February weather, more information can be found here: Vannes weather in February.

In comparing the weather of May and March, we can see notable differences. May typically experiences milder temperatures, with a minimum of 1°C and an average of 14°C, peaking at a comfortable 28°C. In contrast, March is cooler, featuring a minimum of -7°C and an average temperature of 9°C, with a maximum of 21°C. While both months have similar precipitation levels—68 mm in May and 63 mm in March—the humidity remains comparable, at 82% in May and 81% in March. For a closer look at the specific weather patterns, you can check out Vannes weather in March.

In comparing the weather in April and May, it's clear that May sees a notable increase in temperatures, with minimums around 1°C (34°F) and maximums reaching up to 28°C (83°F), while April starts off chillier with minimums of -2°C (29°F) and maximums of 25°C (78°F). The average temperature in May also rises to 14°C (58°F) compared to April's 11°C (53°F). Additionally, May experiences more precipitation, totaling 68 mm (2.7 in) over 12 days, while April has only 45 mm (1.8 in) over 8 days. Interestingly, both months share the same humidity level of 82%. For more detailed insights, you can check Vannes weather in April.

May and June showcase a notable transition in weather. In May, temperatures range from a chilly minimum of 1°C (34°F) to a pleasant maximum of 28°C (83°F), with an average of 14°C (58°F). The month experiences about 68 mm (2.7 in) of precipitation over 12 days, coupled with relatively high humidity at 82%. In contrast, June brings warmer conditions, with minimum temperatures starting at 7°C (44°F) and peaking at 33°C (92°F), resulting in an average of 17°C (63°F). Precipitation slightly increases to 84 mm (3.3 in) but occurs over fewer days—11 in total—and humidity drops to 80%. For a detailed overview, you can check out Vannes weather in June.

May and July present notable differences in weather patterns. In May, temperatures range from a chilly minimum of 1°C (34°F) to a warm maximum of 28°C (83°F), with an average of 14°C (58°F). The month experiences 68 mm (2.7 in) of precipitation over about 12 days, contributing to an average humidity of 82%. In contrast, July is warmer, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 33°C (92°F) and an average temperature of 19°C (66°F). It also brings less precipitation at 48 mm (1.9 in) over just 8 days, and a slightly lower humidity of 77%. This shift underscores the transition to summer, making July generally drier and warmer compared to May. For more detailed insights on the weather in July, you can check Vannes weather in July.

May and August display notable differences in weather patterns. May experiences a broader temperature range with minimums dropping to 1°C (34°F) and maximums reaching 28°C (83°F), while the average temperature sits at 14°C (58°F). The month is relatively humid with 82% humidity and receives 68 mm (2.7 in) of precipitation over about 12 days. In contrast, August typically has warmer conditions, with minimum temperatures starting at 9°C (48°F) and maximums soaring to 34°C (94°F), averaging around 18°C (65°F). With a bit less rain at 50 mm (2.0 in) over 9 days and slightly lower humidity at 78%, August offers a drier and warmer experience. For more details, check out Vannes weather in August.

May and September present distinctly different weather patterns. In May, temperatures range from a chilly minimum of 1°C (34°F) to a comfortable maximum of 28°C (83°F), with an average of 14°C (58°F). The month experiences relatively high humidity at 82% and receives 68 mm (2.7 in) of precipitation over about 12 days, signaling the onset of spring with occasional rain. In contrast, September boasts warmer temperatures, starting at a minimum of 6°C (43°F) and peaking at 31°C (88°F), with an average of 16°C (62°F). It also enjoys lower precipitation at 42 mm (1.7 in) and only 8 rainy days, along with slightly reduced humidity at 79%. For more details on Vannes' September weather, check out this link: Vannes weather in September.

May generally offers warmer temperatures compared to October, with average highs reaching 28°C (83°F) versus October's maximum of 23°C (74°F). However, both months experience similar minimum temperatures, starting at around 1°C (34°F). Precipitation is slightly more abundant in October, with 91 mm (3.6 in) compared to May's 68 mm (2.7 in), and both months have roughly the same number of rainy days at 12. Humidity levels remain consistent at 82% for both months, contributing to a mild and somewhat damp atmosphere. For a detailed look at what to expect, check out Vannes weather in October.

May and November present distinct contrasts in weather patterns. In May, temperatures typically range from a chilly 1°C (34°F) to a warm 28°C (83°F), with an average of 14°C (58°F). This month experiences about 68 mm (2.7 in) of precipitation over approximately 12 days, alongside relatively high humidity at 82%. In contrast, November offers cooler conditions with temperatures ranging from 0°C (32°F) to 18°C (64°F), averaging just 9°C (49°F). While it is slightly wetter, with 75 mm (3.0 in) of rainfall over 11 days, humidity remains similar at 81%. For a deeper look at November weather, visit Vannes weather in November.

May and December present quite a contrast in weather conditions. In May, temperatures range from a minimum of 1°C (34°F) to a pleasant average of 14°C (58°F), with highs reaching up to 28°C (83°F). The month typically sees about 68 mm (2.7 in) of precipitation over 12 days, accompanied by high humidity at 82%. In contrast, December experiences cooler temperatures, with a minimum of -1°C (30°F) and an average of only 8°C (47°F), peaking at 14°C (58°F). Precipitation increases to 104 mm (4.1 in) over 15 days, maintaining the same humidity level of 82%. For a more detailed look at December weather, check out Vannes weather in December.

Compare Vannes's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Vannes

In May, Vannes experiences a delightful shift in weather as temperatures begin to rise, offering a refreshing contrast to the chill of earlier months. With an average temperature of 14°C, the air feels warmer, beckoning locals and visitors alike to enjoy the vibrant blooms of spring. However, May is also characterized by its occasional rainfall, contributing to a relatively high humidity of 82%. This unique combination of warmth and moisture nurtures the lush landscapes of Brittany, making it a beautiful time to explore the region. For a deeper understanding of what to expect throughout the year, check out Vannes Climate.