Last updated: February 26, 2025
Experience the delightful September weather in Vannes, France, where the days transition from warm to mild. With maximum temperatures peaking at 31°C (88°F), and an average of 16°C (62°F), it's a perfect time for outdoor adventures. Nights can be cool, dropping to a minimum of 6°C (43°F). Although the month sees some rainfall, with approximately 42 mm (1.7 in) spread across 8 days, the 79% humidity creates a refreshing atmosphere. Embrace the changing season and enjoy the vibrant beauty of Vannes during this enchanting month.
In September, Vannes experiences a delightful transition from the summer heat, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 31°C (88°F). The average temperature settles around 16°C (62°F), indicating a comfortable climate perfect for outdoor exploration. As the month progresses, you’ll notice a steady decline from the scorching summer highs, giving way to milder days and cooler evenings. This shift not only enhances the beauty of the region's landscapes but also signals the arrival of autumn, making September an idyllic time to savor Vannes' charm. The gradual decrease in temperature keeps the vibrant atmosphere alive while encouraging visitors to enjoy the outdoors before the chill of October sets in.
In September, Vannes experiences a gentle transition into autumn, marked by a precipitation total of 42 mm (1.7 in), which is relatively lower than the preceding summer months. With rain occurring on just 8 days, this decline in both precipitation and the number of rainy days reflects a seasonal shift where the region begins to enjoy more moderate weather. This trend continues into October, where rainfall substantially increases to 91 mm (3.6 in) over 12 days, suggesting that while September may offer a reprieve from the heavier summer rains, the approach of fall brings back a briskness to the region's wet weather patterns.
In September, Vannes experiences a slight dip in humidity, with levels at 79%, following the balmy summer months of July and August, which recorded 77% and 78% respectively. This gradual decrease is part of a broader trend wherein humidity remains relatively constant throughout the year, hovering around the 80% mark for most months. After the summer's relative dryness, the humidity begins to rise again in October, reaching 82%. Overall, Vannes showcases a comfortable transition into autumn, offering a refreshing change while still maintaining the characteristic dampness of its coastal climate.
In September, Vannes, France experiences a notable shift in the UV Index, registering at 6, which falls into the high exposure category. This marks a decline from the very high levels observed during the peak summer months of July and August, where the UV Index peaked at 9. As the season transitions, the burn time increases slightly to 25 minutes, allowing for expanded outdoor enjoyment while still highlighting the importance of sun protection. As you embrace the early autumn warmth, it’s essential to remain mindful of UV exposure. For more detailed insights, visit Vannes UV Index.
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In September, Vannes, France, basks in a delightful 335 hours of sunshine, making it the perfect time to enjoy the fading warmth of late summer. As the year progresses, we see a gradual increase in sunlight hours, starting from a mere 144 hours in January and reaching a peak of 427 hours in July. Although sunlight begins to dwindle post-summer, September still offers a promising amount compared to the cooler months ahead. The gradual decline in daylight is evident as we transition into autumn, with October witnessing a drop to 277 hours. This charming coastal town embraces the sun's final rays before woolen sweaters and warm drinks become the norm.
As September arrives in Vannes, France, the likelihood of sunny weather stands at 45%, reflecting a noteworthy trend of increasing sunshine compared to earlier months. Transitioning from the summer, where July and August hover in the low to mid-40s for sunny days, September holds its own with a solid chance of clear skies. This slight dip from the peak summer months suggests a gentle transition into autumn, yet the days still offer a delightful mix of warmth and sun. With the percentage surpassing the average chances typical for the early fall months, September remains an appealing option for those seeking to bask in the last rays of summer.
As September settles over Vannes, France, daylight begins to wane, offering approximately 12 hours of sun—a noticeable dip from the vibrant 15 hours seen in the summer months. This transition marks a shift from the long, sun-drenched days of July and August, gradually leading into the cozy, shorter days of autumn. With daylight hours dwindling, Vannes embraces the gentle hues of fall, where the golden light filters through the leaves, creating an enchanting atmosphere that beckons both locals and visitors alike to savor the beauty of the changing season. As September unfolds, the city's charm is amplified by its blend of warm days and cool evenings, inviting reflection before the sunlight retreats further into the horizon.
As September arrives in Vannes, France, the wind begins to gently whisper a transition towards autumn. With an average wind speed of 3.6 m/s (8 mph), this month marks a noticeable dip compared to the summer's breezy days, where wind speeds hovered around 4.0 m/s (9 mph) in August. The trend reveals a gradual decrease in wind speed from the bustling spring months, characterized by averages exceeding 5 m/s, down to a softer, more tranquil whisper as autumn unfolds. This soothing change invites locals and visitors alike to savor the mild weather, perfect for exploring Vannes' beautiful coastal vistas without the summer's gusty interruptions.
The weather in Vannes changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September'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.
September and January present striking contrasts in weather. September typically enjoys warmer temperatures, with averages around 16°C (62°F) and maximums reaching up to 31°C (88°F), while January sees much colder conditions with average temperatures of 7°C (44°F) and highs of only 15°C (59°F). Precipitation levels are somewhat similar, with September receiving 42 mm over 8 days compared to January's 49 mm over 9 days. Humidity remains relatively high in both months, peaking at 79% in September and slightly rising to 82% in January. For a detailed look at the weather conditions in January, you can refer to Vannes weather in January.
When comparing the weather in September and February, it's clear that these months offer distinctly different climates. September typically enjoys milder temperatures, with a minimum of 6°C (43°F) and an average high of 31°C (88°F), while February can be much colder, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 19°C (67°F). Additionally, September experiences less precipitation, averaging 42 mm (1.7 in) over about 8 days, compared to February's wetter climate, which sees around 70 mm (2.8 in) spread over approximately 12 days. Both months have relatively high humidity levels, with September at 79% and February slightly higher at 83%. For a more detailed look at conditions during this time, you can check Vannes weather in February.
When comparing the weather in September and March, notable differences emerge in temperature and precipitation patterns. September tends to be warmer, with average temperatures ranging from 6°C (43°F) to a maximum of 31°C (88°F), while March experiences cooler temperatures, with a minimum of -7°C (20°F) and a maximum of 21°C (70°F). Additionally, March sees more days of precipitation, with rain occurring on 12 days, compared to 8 days in September. The humidity levels are relatively similar, slightly higher in March at 81% versus 79% in September. For a more detailed look at March weather conditions, refer to Vannes weather in March.
September and April exhibit contrasting weather patterns, characterized by their respective temperatures and humidity levels. In September, temperatures range from a minimum of 6°C (43°F) to a maximum of 31°C (88°F), with an average of 16°C (62°F). This month sees a notable decrease in precipitation at 42 mm (1.7 in) over 8 days, alongside a humidity level of 79%. In contrast, April is cooler, featuring temperatures that swing from a brisk -2°C (29°F) to a pleasant 25°C (78°F) and an average of 11°C (53°F). While April has slightly higher precipitation at 45 mm (1.8 in) over the same number of days, the humidity is marginally higher at 82%. For a detailed look at Vannes' April weather, you can visit Vannes weather in April.
September typically offers warmer temperatures than May, with minimums around 6°C (43°F) compared to May’s chilly 1°C (34°F). The average temperature in September is 16°C (62°F), while May averages slightly lower at 14°C (58°F). Maximum temperatures in September can reach 31°C (88°F), which is significantly higher than May's peak of 28°C (83°F). However, September has lower overall precipitation, with 42 mm (1.7 in) over about 8 days, versus May’s 68 mm (2.7 in) spread across 12 days. Humidity levels remain similar in both months, with September at 79% and May slightly higher at 82%. For more detailed information, you can check Vannes weather in May.
When comparing the weather in September and June, notable differences emerge despite their proximity in the calendar year. September sees a temperature range from a chilly minimum of 6°C (43°F) to a maximum of 31°C (88°F), with an average of 16°C (62°F), while June tends to be slightly warmer with a minimum of 7°C (44°F) and a maximum of 33°C (92°F), averaging 17°C (63°F). Precipitation is higher in June, totaling 84 mm (3.3 in) over 11 days, compared to September's 42 mm (1.7 in) across 8 days, indicating that June may feel rainier despite its warmer temperatures. Humidity levels remain fairly consistent, at 79% for September and 80% for June, giving both months a slightly muggy feel. For more details, you can check this link: Vannes weather in June.
In July, temperatures are generally warmer with a minimum of 9°C (48°F) and an average of 19°C (66°F), peaking at a maximum of 33°C (92°F), while September features a broader range, starting as low as 6°C (43°F) and rising to a maximum of 31°C (88°F), with an average of 16°C (62°F). July sees slightly more precipitation at 48 mm (1.9 inches) compared to 42 mm (1.7 inches) in September, both occurring over 8 days. Despite the slight differences in rainfall, humidity remains relatively similar, with July at 77% and September at 79%. For a detailed overview of July weather, you can check Vannes weather in July.
In comparing the weather of September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 31°C (88°F), while August typically shows a range from a minimum of 9°C (48°F) to a maximum of 34°C (94°F). Precipitation in September is also a bit lower, totaling 42 mm (1.7 in) over 8 days compared to August's 50 mm (2.0 in) across 9 days. The humidity levels are quite similar, with September at 79% and August at 78%. For more detailed information about August weather, you can check this link: Vannes weather in August.
September typically showcases milder temperatures, with averages around 16°C (62°F) and maximums reaching up to 31°C (88°F), while October experiences a notable drop, averaging 13°C (56°F) and peaking at 23°C (74°F). In terms of precipitation, September records around 42 mm (1.7 in) over approximately 8 days, whereas October sees an increase to 91 mm (3.6 in) spread over 12 days, indicating a trend towards wetter conditions. Additionally, humidity remains relatively high in both months, with September at 79% and October slightly increasing to 82%. For more details, check out Vannes weather in October.
In September, the weather is generally warmer, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 31°C (88°F), and an average temperature of 16°C (62°F). During this month, precipitation averages 42 mm (1.7 in) over about 8 days, with humidity sitting at 79%. In contrast, November experiences a notable drop in temperature, with a minimum of 0°C (32°F) and a maximum of 18°C (64°F), leading to an average of just 9°C (49°F). Additionally, November sees increased precipitation at 75 mm (3.0 in) over approximately 11 days, with humidity slightly higher at 81%. For more detailed weather information specifically for November, you can visit Vannes weather in November.
September and December present contrasting weather patterns. In September, temperatures range from a minimum of 6°C (43°F) to a maximum of 31°C (88°F), with an average of 16°C (62°F), making it a relatively warm month with only 42 mm (1.7 in) of precipitation over approximately 8 days and a humidity level of 79%. In contrast, December sees significantly cooler conditions, with temperatures ranging from a low of -1°C (30°F) to a high of 14°C (58°F) and an average of 8°C (47°F). Packed with greater precipitation of 104 mm (4.1 in) over 15 days and a slightly higher humidity of 82%, December is characterized by a damp and chilly atmosphere. For more detailed information, check out Vannes weather in December.
September in Vannes marks a delightful transition from the warmth of summer to the cooler embrace of autumn, offering a unique blend of temperatures that vary widely. With an average of 16°C (62°F), it provides a refreshing contrast to the hotter months, while still allowing for occasional warm days, reaching up to a maximum of 31°C (88°F). This month sees an increase in humidity at 79%, and while rain is not uncommon with 42 mm of precipitation over 8 days, the overall atmosphere remains vibrant and inviting. Whether you’re exploring the historic streets or enjoying the local cuisine, September is a beautiful time to experience Vannes. For a deeper understanding of what to expect throughout the year, check out the detailed insights at Vannes Climate.