Last updated: February 26, 2025
In Rennes, France, May brings a delightful range of temperatures, with maximums reaching up to 30°C (86°F) and averages around 14°C (58°F). However, residents should be prepared for cooler nights, as temperatures can dip to a refreshing minimum of 0°C (32°F). Rain is a frequent visitor, contributing to an overall precipitation of 67 mm (2.6 in) over 11 days, creating a lush atmosphere enhanced by an average humidity of 81%. This combination of warmth, cooling evenings, and occasional rainfall makes May a vibrant month in Rennes, perfect for enjoying the blossoming surroundings.
As spring rolls into Rennes, France, May heralds a delightful transition towards summer, showcasing noticeably warmer temperatures. With a minimum of 0°C (32°F) and an average soaring to 14°C (58°F), locals and visitors alike experience a refreshing shift from the chill of the earlier months. The maximum temperature can reach a pleasant 30°C (86°F), pushing boundaries that signal the impending warmth of summer. This month stands out as a turning point, reflecting a marked increase from April's averages, and setting the stage for June's even warmer embrace. The gradual rise in temperatures not only invites outdoor activities but also encourages the blooming of vibrant spring flora, making Rennes particularly enchanting in May.
In May, Rennes experiences a noticeable uptick in precipitation, with 67 mm (2.6 in) of rainfall recorded over 11 days. This marks a slight increase compared to previous months, suggesting a transition into the wetter season as spring gives way to summer. Despite the rise in rainfall, May's totals remain lower than June's, which typically sees the highest monthly precipitation. The regularity of rainy days, consistent with the early spring months, indicates a persistent pattern of drizzly weather, setting the stage for lush greenery as the city gears up for the warmer months ahead. Overall, May acts as a pivotal month, balancing both increasing precipitation and the emerging vibrancy of Rennes in full bloom.
In Rennes, France, May marks a notable shift in humidity levels as they begin to decline from the chilly heights of winter. With humidity at 81%, the air is noticeably fresher compared to the preceding months, continuing a trend established in April, where it was slightly higher at 83%. This gradual decrease sets the stage for the summer months ahead, with June dropping further to 75%. Overall, May signifies a transition towards drier and warmer conditions, offering a respite from the dampness that characterizes much of the early year. As the season unfolds, residents can expect a more invigorating atmosphere, making it an ideal time to enjoy the blooming landscapes of this charming city.
In May, Rennes experiences a marked shift in UV exposure, with a UV Index of 8 categorizing it as very high. This is a significant jump from April's UV Index of 6, which indicates a transition towards the sun's peak intensity as summer approaches. With only 15 minutes of burn time, it's essential for residents and visitors to protect their skin during this month. This trend of increasing UV levels continues as Rennes prepares for the hotter months ahead, emphasizing the importance of sun safety. For more details on UV exposure throughout the year, visit Rennes UV Index.
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As the calendar flips to May, Rennes basks in an impressive 398 hours of sunshine, marking a delightful peak in the city’s vibrant spring. This month stands out against the backdrop of a steady increase in sunlight hours since the start of the year, with each passing month bringing an encouraging rise. After a modest 135 hours in January, the sunshine steadily blossoms through the spring, peaking not just in May but also hinting at the summer months ahead. June maintains this warmth with 387 hours, while July introduces an even sunnier disposition with 414 hours. This upward trend not only invites locals and visitors alike to enjoy outdoor pursuits but also heralds the enchanting colors of long, sun-drenched days that define the charm of Rennes in late spring and summer.
In Rennes, France, the likelihood of sunny weather experiences noticeable fluctuations throughout the year. While May boasts a respectable 34% chance of sunshine, it sees a decline compared to the brighter preceding months of April (56%) and March (48%). Interestingly, this drop signals a trend where spring months are typically more favorable for sun-filled days, making May a transitional period. As the season progresses, June and July promise slightly higher chances of sunshine at 36% and 41%, respectively. Thus, while May may offer a mix of pleasant days, the increasing probabilities after it hint at the approaching summer's allure.
As spring blossoms into summer, Rennes, France experiences a remarkable transformation in daylight duration. Beginning with a modest 8 hours in January, the days gradually lengthen, reaching 10 hours in February and then surging to 11 hours in March. By the time April rolls around, residents delight in 13 hours of daylight, setting the stage for the vibrant month of May, which showcases an impressive 15 hours of sunlight. This peak daylight duration continues through June and July, gradually tapering off to 14 hours in August. As autumn approaches, the daylight wanes, settling to 12 hours in September and further diminishing to 10 hours in October. The persistence of 9 hours in November and a return to 8 hours in December signals the cyclical nature of the seasons, a gentle reminder of the rhythm inherent in day and night throughout the year.
In Rennes, France, the month of May brings a refreshing increase in wind speed, averaging 4.3 m/s (10 mph), slightly higher than the preceding months. This uptick follows a gentle decline from the breezy conditions of February and marks a contrast to the calmer winds of late spring and early summer. Compared to April, which saw a drop to 3.5 m/s (8 mph), May's breezes provide a lively atmosphere, making outdoor activities feel invigorating. As the year progresses, wind speeds tend to fluctuate significantly, with June experiencing the year's lowest average at just 2.7 m/s (6 mph). This pattern highlights the transition into the warmer months, where the dynamics of wind in Rennes reflect a shift towards more stable, albeit less gusty, climatic conditions.
The weather in Rennes 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 Rennes and find detailed weather information for every month.
May and January present strikingly contrasting weather patterns. In May, temperatures range from a chilly 0°C (32°F) at night to a warm high of 30°C (86°F) during the day, with an average temperature of 14°C (58°F). The month enjoys an average of 67 mm (2.6 in) of precipitation spread over 11 days, accompanied by relatively high humidity levels at 81%. In contrast, January experiences much colder temperatures, with nighttime lows dipping to -7°C (19°F) and daytime highs only reaching up to 16°C (60°F), resulting in an average of 6°C (43°F). This month sees less rainfall, totaling 46 mm (1.8 in) over 9 days, but slightly higher humidity at 88%. For more specific insights into January weather, visit Rennes weather in January.
When comparing the weather between May and February, notable differences emerge. May typically experiences a wider temperature range, with minimums around 0°C (32°F) and maximums reaching 30°C (86°F), while February is generally cooler, starting at a minimum of -6°C (22°F) and peaking at 21°C (69°F). Although both months see rainfall on approximately 11 days, May averages 67 mm (2.6 in) of precipitation compared to February’s 60 mm (2.3 in). Humidity levels are slightly lower in May at 81%, compared to February's 87%. For more detailed insights, visit Rennes weather in February.
Comparing the weather in May and March reveals significant differences in temperature and precipitation patterns. In March, temperatures range from a chilly minimum of -7°C (20°F) to a milder maximum of 24°C (75°F), with an average of about 9°C (48°F). The month experiences approximately 58 mm (2.3 in) of precipitation spread over 12 days, accompanied by a humidity level of 84%. In contrast, May showcases a warmer climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 30°C (86°F), and an average temperature of 14°C (58°F). Precipitation increases slightly to 67 mm (2.6 in), occurring over 11 days, and the humidity remains relatively high at 81%. For more detailed insights into March weather, visit Rennes weather in March.
In comparing the weather conditions between April and May, it's evident that May typically experiences warmer temperatures, with an average of 14°C (58°F) and a maximum reaching up to 30°C (86°F) compared to April's average of 11°C (52°F) and max of 26°C (80°F). April's minimum temperature dips to -2°C (28°F), while May's minimum is more forgiving at 0°C (32°F). Additionally, May has a slightly higher total precipitation of 67 mm (2.6 in) over 11 days, compared to April's 48 mm (1.9 in) over 9 days, indicating that May may be wetter but also offers more warm days. You can find more details about April's weather Rennes weather in April.
In May, the weather experiences a broader temperature range, with minimum temperatures dipping to 0°C (32°F) and maximums reaching 30°C (86°F), while the average hovers around 14°C (58°F). The month experiences a fair amount of rain with 67 mm (2.6 in) of precipitation over 11 days and an average humidity level of 81%. In contrast, June brings warmer conditions with minimum temperatures starting at 6°C (44°F) and soaring up to 35°C (95°F), resulting in a higher average temperature of 18°C (64°F). This month also sees increased precipitation at 100 mm (3.9 in) over the same 11 rainy days, though with a slightly lower humidity of 75%. For more insights, you can check Rennes weather in June.
May and July exhibit notable differences in weather patterns. In May, temperatures range from a chilly 0°C (32°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (58°F). This month also experiences higher humidity at 81% and more precipitation, totaling 67 mm (2.6 in) over approximately 11 days. In contrast, July is generally warmer, with minimum temperatures of 7°C (46°F), an average of 19°C (67°F), and maximum highs reaching up to 37°C (99°F). The humidity decreases to 65%, and July sees less rainfall, with only 50 mm (2.0 in) over about 8 days. For more details on the weather in July, you can check Rennes weather in July.
May and August exhibit distinct differences in weather conditions. In May, temperatures can range from a chilly 0°C (32°F) at night to a warm 30°C (86°F) during the day, with an average temperature of 14°C (58°F). The month sees considerable precipitation, totaling 67 mm (2.6 in) over 11 days, coupled with high humidity levels averaging 81%. In contrast, August experiences milder temperatures, ranging from a minimum of 7°C (46°F) to a maximum of 35°C (96°F), with an average of 19°C (66°F). Precipitation decreases to 53 mm (2.1 in) over 8 days, and humidity is noticeably lower at 67%. For more details on August weather, check out Rennes weather in August.
In May, the weather features a wider range in temperatures, with minimums dropping to 0°C (32°F) and maximums reaching up to 30°C (86°F). The month experiences an average temperature of 14°C (58°F) alongside 67 mm (2.6 in) of precipitation spread across 11 days, contributing to a higher humidity level of 81%. In contrast, September presents slightly milder conditions, with minimum temperatures at 5°C (41°F) and averaging around 16°C (62°F), while still allowing for warm highs of 32°C (90°F). The total precipitation in September is lower at 55 mm (2.2 in) over 9 days, and humidity drops to 75%. For more detailed insights into the weather, check out Rennes weather in September.
In May, the weather begins to warm up, with average temperatures ranging from a chilly 0°C (32°F) at night to a comfortable 30°C (86°F) during the day, while October sees slightly milder conditions with temperatures varying from 3°C (37°F) to a maximum of 24°C (76°F). May typically experiences a total precipitation of 67 mm (2.6 in) over about 11 days, while October has a slightly wetter outcome, with 88 mm (3.5 in) also spread across 11 days. Humidity levels are comparable, with May at 81% and October just a touch higher at 85%. For more specific details about the October weather, you can check Rennes weather in October.
May and November present distinct contrasts in weather patterns. In May, temperatures range from a minimum of 0°C (32°F) to a pleasant maximum of 30°C (86°F), with an average of 14°C (58°F). The month enjoys relatively lower humidity at 81% and experiences about 67 mm (2.6 in) of precipitation over 11 days. In stark contrast, November sees cooler temperatures, with a minimum of -1°C (30°F) and a maximum of only 17°C (64°F), averaging around 8°C (48°F). This month also has increased humidity at 88% and slightly higher precipitation totals of 71 mm (2.8 in) over the same 11 days. For a deeper look into November's conditions, you can check out Rennes weather in November.
May and December present quite different weather conditions. In May, temperatures typically range from a chilly 0°C (32°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (58°F). The month enjoys relatively lower precipitation of 67 mm (2.6 in) over about 11 days and a humidity level of 81%. In contrast, December experiences colder temperatures, with a minimum of -3°C (26°F) and a maximum of 16°C (60°F), averaging around 7°C (46°F). This month tends to be wetter, receiving 97 mm (3.8 in) of precipitation over 15 days, and it has a higher humidity level of 90%. For more details, you can check Rennes weather in December.
May in Rennes marks a delightful transition as temperatures begin to rise, offering a refreshing departure from the cooler spring months. With a maximum temperature reaching up to 30°C (86°F), the city enjoys a more inviting climate, although an average temperature of 14°C (58°F) ensures that cool breezes still make their presence felt. While May does see increased sunshine, it’s accompanied by a notable 81% humidity and 67 mm (2.6 in) of precipitation over approximately 11 days, leading to lush landscapes. This balance of warmth and moisture creates a vibrant atmosphere, paving the way for the summer ahead. For a deeper dive into Rennes’ weather patterns, explore more at Rennes Climate.