September Weather in Fouesnant, France

Last updated: February 26, 2025

September in Fouesnant, France presents a delightful transition into autumn, with maximum temperatures reaching 29°C (84°F) and an average of 16°C (61°F). While the days are still warm, the evenings can be refreshingly cool, dipping as low as 8°C (47°F). Throughout the month, expect about 52 mm (2.1 in) of rainfall spread over 10 days, contributing to a relative humidity of 79% that creates lush landscapes. This combination of warm days and cool nights, along with occasional showers, makes September an ideal time to explore the charming coastal scenery and vibrant nature of Fouesnant.

September Temperature in Fouesnant

In Fouesnant, France, September marks a delightful transition into autumn, boasting a comfortable climate perfect for leisurely outdoor activities. With minimum temperatures averaging around 8°C (47°F) and maximums reaching up to 29°C (84°F), the month offers a pleasant range that appeals to sun-seekers and brisk-air enthusiasts alike. The average temperature settles at a mild 16°C (61°F), signaling a decline from the summer warmth but still inviting enough for beach strolls and seaside cafes. As the days grow shorter, September maintains a beautifully balanced charm, hinting at the cozy months ahead while still embracing the lingering warmth of summer.

September Weather in Fouesnant: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fouesnant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454648525661656361565048
Data source: Temperature data for Fouesnant 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.

September Precipitation in Fouesnant

September in Fouesnant, France, typically ushers in a gentle shift as summer wanes. With an average precipitation of 52 mm (2.1 in) spread over 10 days, this month marks a slight dip in rainfall compared to the wetter months of August and October. The weather remains relatively mild, hinting at the transition to autumn while still showcasing some lingering warmth. Following the trend of late summer, September's precipitation reflects the region's characteristic variability, establishing an inviting atmosphere that balances sun and shade, ideal for enjoying the stunning coastal landscape before the more persistent rains of fall set in.

September Precipitation Trends in Fouesnant

The chart displays monthly precipitation patterns in Fouesnant, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec65917542656547605310093129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fouesnant

In Fouesnant, France, September brings a refreshing yet slightly elevated humidity level of 79%. This marks a gradual decline from the summer months, where humidity peaked at 78% in August and 77% in July, reflecting a transition towards the cooler season. Overall, the humidity levels exhibit a consistent pattern throughout the year, remaining relatively stable, with only slight fluctuations. From the high of 83% in February to the low of 77% in July, the year averages around 80% humidity, ensuring that Fouesnant retains its characteristic coastal atmosphere even as the seasons change.

September Average Humidity in Fouesnant

This chart illustrates the average monthly humidity levels in Fouesnant, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%81%82%82%80%77%78%79%82%81%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fouesnant

As summer fades and September arrives in Fouesnant, France, the UV Index reflects a gradual decline from the peak of the warmer months. While the summer sun brings intense UV levels, September's UV Index settles at a moderate 6, indicating a high exposure category that requires caution. With a burn time of 25 minutes, it's essential to stay protected during outdoor activities. This shift from the very high indices of July and August serves as a reminder to adjust sun safety strategies as the weather begins to cool, while still enjoying those lingering sunny days. For more information, check out the Fouesnant UV Index!

Maximum UV Index Levels in Fouesnant for September

The chart shows the monthly maximum UV Index (UVI) for Fouesnant in September, 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: Fouesnant September 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.

September Sunshine in Fouesnant

As summer gracefully transitions into autumn, September in Fouesnant remains a charming month filled with delightful sunshine. With 340 hours of sunlight, this month presents a noticeable dip from the peak of July, which boasts an impressive 433 hours. While the sunny days begin to taper off, September still offers more light than both October and November, promising plenty of opportunities to bask in the mild fall temperatures. As nature shifts, the vibrant golden hues of the landscape contrast beautifully against the softer rays of the setting sun, creating a picturesque backdrop for leisurely strolls and outdoor activities, even as the longer days of summer fade into memory.

Monthly Sunshine Duration in Fouesnant: September Highlighted

The September sunshine duration represents the total number of hours Fouesnant experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec142h209h305h359h418h415h433h402h340h279h231h182h
Data source: Fouesnant September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fouesnant During September

In Fouesnant, France, September boasts a 42% chance of sunny weather, aligning it closely with the sunniest months of July and August. As summer transitions into autumn, this moderate likelihood reflects a trend of increasing sun exposure, especially when compared to the preceding months of June and May, which dip to 34% and 33% respectively. While September may not guarantee a sun-soaked vacation, the consistent chance of sunny days makes it a delightful time for visitors to enjoy the region's scenic beauty, as the warmer temperatures linger and the vibrant landscapes beckon.

Percentage of Sunny Days in September in Fouesnant

The chart illustrates the percentage of sunny days in Fouesnant throughout the year, with September 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 Fouesnant experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%27%41%54%33%34%41%42%42%37%37%26%
Data source: Fouesnant September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fouesnant in September

As summer fades, September in Fouesnant, France, brings a gentle transition with approximately 12 hours of daylight. Following the peak brightness of June, July, and August, which each boasted a delightful 15 hours, September marks a subtle decline, welcoming the softer sunlight of autumn. This gradual tapering in daylight mirrors the earlier months of the year, where daylight hours steadily increase from the dark depths of January’s 8 hours to a vibrant 15 hours by May. As the year progresses toward October, the trend continues, reminding us of nature’s rhythmic cycle as daylight dwindles to 10 hours. The shift in September signifies not just a change in brightness but also a warm embrace of the crisp, invigorating air that heralds the arrival of fall.

Average Daylight Hours in Fouesnant for September

The chart illustrates the variation in daylight duration in Fouesnant throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 51m10h 13m11h 56m13h 41m15h 11m15h 57m15h 32m14h 12m12h 31m10h 47m9h 14m8h 25m
Data source: Fouesnant daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Fouesnant

As September arrives in Fouesnant, France, the winds begin to soften, with an average speed of only 3.6 m/s (8 mph). This marks a gentle transition from the warmer summer months, where winds peaked at 5.2 m/s (12 mph) in May, gradually tapering off. The overall trend reveals a noticeable dip in wind speed during late summer, with September being the calmest month since June. While October sees a slight uptick back to 4.4 m/s (10 mph), the coastal breezes of September evoke a tranquil charm, inviting residents and visitors alike to savor the late-season warmth and the serene beauty of the region.

Average September Wind Speed in Fouesnant

The chart displays monthly wind speed patterns in Fouesnant, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.65.44.54.15.23.14.33.93.6 m/s4.43.75.4
Data source: Fouesnant September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Fouesnant Compares to Other Months

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

September and January present quite contrasting weather conditions. In September, temperatures range from a mild minimum of 8°C (47°F) to a warm maximum of 29°C (84°F), with an average of 16°C (61°F). The month sees around 52 mm (2.1 in) of precipitation over approximately 10 days, coupled with a humidity level of 79%. Conversely, January experiences much colder temperatures, with a minimum of -4°C (25°F) and a maximum of only 14°C (57°F), leading to an average of 7°C (46°F). The precipitation is slightly higher at 64 mm (2.5 in) but remains consistent with rain over 10 days, while humidity increases to 82%. For more details on the weather in January, check out Fouesnant weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures range from a mild 8°C (47°F) at night to a warm 29°C (84°F) during the day, with an average of 16°C (61°F). The month experiences 52 mm (2.1 in) of precipitation over approximately 10 days and has a humidity level of 79%. In contrast, February is much colder, with temperatures starting at a minimum of -4°C (26°F) and peaking at 17°C (63°F), averaging 8°C (47°F). This month sees higher precipitation overall, totaling 91 mm (3.6 in) across about 13 days, and slightly increased humidity at 83%. For a closer look at the specifics of February weather, you can check Fouesnant weather in February.

When comparing the weather in September and March, notable differences emerge. September enjoys milder temperatures with a minimum of 8°C (47°F) and a maximum reaching up to 29°C (84°F), averaging 16°C (61°F). In contrast, March experiences significantly cooler conditions, with temperatures dipping as low as -5°C (23°F) and peaking at 19°C (66°F), averaging only 9°C (48°F). Additionally, March tends to have higher precipitation levels at 75 mm (3.0 in) over 15 days, compared to September's 52 mm (2.1 in) over 10 days. Both months have similar humidity levels, hovering around 79% in September and slightly higher at 81% in March. For more detailed information, you can check out Fouesnant weather in March.

When comparing the weather in September and April, it's clear that both months experience distinct climatic conditions. September tends to be warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (84°F), and an average of 16°C (61°F). In contrast, April shows cooler temperatures, with lows at 0°C (33°F), highs of 22°C (72°F), and an average of 11°C (52°F). Precipitation is slightly higher in September at 52 mm (2.1 in) over about 10 days compared to April's 42 mm (1.6 in) across 7 days. Humidity levels are similar, with September at 79% and April slightly higher at 82%. For more detailed insights, check out Fouesnant weather in April.

September typically enjoys a more varied temperature range compared to May, with minimums at 8°C (47°F) and maximums reaching up to 29°C (84°F), while May's temperatures range from a cooler 3°C (38°F) to a maximum of 26°C (78°F). Although May experiences slightly more precipitation at 65 mm (2.6 in) over 12 days compared to September's 52 mm (2.1 in) across 10 days, September’s humidity remains relatively high at 79%, just slightly lower than May's 82%. Overall, September offers warmer days and a broad range of temperatures, making it feel more like the tail end of summer, while May marks a cooler, often rainy spring. For more detailed weather patterns, visit Fouesnant weather in May.

In comparing the weather of September and June, both months share similar average temperatures, hovering around 16°C (61°F) but with slightly different ranges. September experiences a minimum of 8°C (47°F) and can reach a maximum of 29°C (84°F), while June has a slightly cooler minimum of 7°C (46°F) with the same maximum. Precipitation is slightly lower in September at 52 mm (2.1 in) over 10 days, compared to June's 65 mm (2.5 in) over 11 days. Humidity remains fairly consistent, with September at 79% and June at 80%. For more details on June weather, you can check Fouesnant weather in June.

September weather tends to be slightly cooler than July, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (84°F), compared to July's temperatures that range from a minimum of 10°C (51°F) to the same maximum. Both months experience similar high temperatures, but September has a lower average of 16°C (61°F) compared to July's 18°C (65°F). In terms of precipitation, September is a bit wetter with 52 mm (2.1 in) of rainfall over 10 days, whereas July sees 47 mm (1.9 in) across 9 days. Humidity remains relatively consistent, with September at 79% and July at 77%. For more detailed information on July weather, you can check Fouesnant weather in July.

When comparing the weather of September to August, we can observe a slight decrease in average temperatures, with September featuring a minimum of 8°C (47°F) and an average of 16°C (61°F), while August has a minimum of 11°C (52°F) and an average of 17°C (64°F). The maximum temperatures in both months are quite similar, with September reaching up to 29°C (84°F) and August peaking at 28°C (83°F). In terms of precipitation, September experiences a total of 52 mm (2.1 in) over 10 days, while August has slightly higher rainfall at 60 mm (2.3 in) across 11 days. Humidity levels are comparable, with September at 79% and August at 78%. For more detailed information, you can check Fouesnant weather in August.

In September, the weather tends to be warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (84°F), averaging around 16°C (61°F). The month experiences relatively moderate precipitation, totaling 52 mm (2.1 in) over about 10 days and maintaining a humidity level of 79%. In contrast, October brings a notable drop in temperatures, with lows of 3°C (38°F) and highs capping at 20°C (69°F), averaging 13°C (56°F). This month sees increased rainfall, with around 100 mm (4.0 in) spread over 14 days, while humidity slightly rises to 82%. For more details, you can check out Fouesnant weather in October.

In September, the weather generally boasts warmer temperatures, with a minimum of 8°C (47°F) and an average high reaching up to 29°C (84°F). This month typically experiences around 52 mm (2.1 in) of precipitation over about 10 days, coupled with a humidity level of 79%. In contrast, November brings a significant drop in temperature, with minimums around 2°C (35°F) and an average high of only 17°C (63°F). Precipitation also increases, totaling 93 mm (3.7 in) over approximately 14 days, while humidity remains relatively high at 81%. For a more detailed look at what to expect, check out Fouesnant weather in November.

September weather exhibits a wider temperature range, with minimums around 8°C (47°F) and maximums reaching up to 29°C (84°F), fostering a generally warmer atmosphere. In contrast, December brings cooler temperatures, averaging only 9°C (48°F), with highs around 14°C (57°F) and lows dipping to 1°C (34°F). Additionally, December is notably wetter, with a total precipitation of 129 mm (5.1 in) over 16 days, compared to September's 52 mm (2.1 in) over just 10 days. Both months carry high humidity levels, but December's slightly elevated figure at 82% contributes to a more damp and chilly feel. For a closer look at specific weather trends, check out Fouesnant weather in December.

Compare Fouesnant's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Fouesnant

As September approaches, Fouesnant experiences a delightful shift in weather that blends the warmth of summer with the crispness of autumn. The average temperature settles comfortably at 16°C (61°F), contrasting with the higher peaks of July and August while still offering the occasional warm day with highs reaching up to 29°C (84°F). However, the month also ushers in increased humidity and a noticeable rise in precipitation, with rain appearing on about 10 days throughout September. This transitional period makes it a unique time to enjoy the changing scenery. For a deeper understanding of what to expect throughout the year, check out the details in Fouesnant Climate.