September Weather in Chablis, France

Last updated: February 26, 2025

In September, Chablis, France experiences a delightful blend of warm and cool temperatures, with maximums reaching up to 35°C (95°F) and average daily temperatures around 17°C (63°F). As the season transitions, the minimum temperatures can drop to 3°C (38°F), offering a refreshing chill in the air. This month also sees 54 mm (2.1 in) of precipitation spread over 8 days, contributing to the lush landscapes that Chablis is known for. With an average humidity of 78%, visitors can expect a varied climate, perfect for enjoying the renowned vineyards and picturesque surroundings.

September Temperature in Chablis

In September, Chablis transforms into a delightful blend of crisp and warm weather, marking the transition from summer's heat to autumn's embrace. With minimum temperatures settling around 3°C (38°F) and an average of 17°C (63°F), visitors can enjoy comfortable days perfect for vineyard exploration and wine tasting. The peak temperatures still reach up to 35°C (95°F), reminding us of the lingering summer warmth. This month typically offers a refreshing balance, as the vineyards begin their harvest season, painting the landscape in stunning hues while inviting enthusiasts to savor the region's renowned wines before the cooler months set in. As the leaves start to turn, September in Chablis becomes a captivating experience, merging pleasant temperatures with breathtaking scenery.

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

The chart illustrates September temperature patterns in Chablis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394346525867706963554542
Data source: Temperature data for Chablis generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Chablis

In September, Chablis experiences a moderate precipitation of 54 mm (2.1 in) over approximately 8 days, marking a transition as summer begins to fade. This rainfall, while less than the figures seen in the preceding months of July and August, is consistent with the overall trend of diminishing precipitation as the region moves into autumn. Historically, September stands out with its pleasant climate, offering just enough moisture to keep the landscape lush without overwhelming the harvest season. With the year concluding in the wetter months of October and December, September's balance between sun and rain effectively prepares vineyards for the cool, upcoming months.

September Precipitation Trends in Chablis

The chart displays monthly precipitation patterns in Chablis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8269793779755147547669121
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chablis

As summer fades into autumn, September in Chablis, France experiences a slight rebound in humidity, with levels averaging around 78%. This marks a modest increase from the lowest point in July and August, when humidity dipped to 79% and 72%, respectively. The trend of declining humidity during the warmer months is eventually reversed as the region transitions into fall. Notably, the humidity begins to rise again in October, climbing to 88%, suggesting that the crisp air of early autumn brings back the moisture that characterizes the cooler months. This cyclical pattern highlights Chablis's unique climatic rhythm, where seasons significantly influence atmospheric conditions.

September Average Humidity in Chablis

This chart illustrates the average monthly humidity levels in Chablis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%82%82%79%72%78%88%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chablis

As summer gives way to autumn in Chablis, France, September maintains a high UV Index of 6, requiring a burn time of about 25 minutes for unprotected skin. This slight decline from the peak summer months, where UV levels reached a stunning 9, signifies a shift in solar intensity, yet the need for sun protection remains essential. The previous few months have displayed a consistent trend of very high UV exposure, especially in June and July, making it crucial for visitors and locals alike to adapt to changing conditions. With the UV Index tapering off as the season progresses, it's important to stay informed about local sunlight trends and proactively protect your skin. For more details on UV levels throughout the year, check out Chablis UV Index.

Maximum UV Index Levels in Chablis for September

The chart shows the monthly maximum UV Index (UVI) for Chablis 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Chablis 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 Chablis

As summer gracefully gives way to autumn, September in Chablis, France, enjoys a delightful 326 hours of sunshine—a comforting continuation of the warm, radiant months that preceded it. This period not only marks a gradual decline from the peak sunshine of July and August but also showcases a remarkable increase from the dreary winter months, which struggled with less than 120 hours in January. The vibrant September sun is a perfect backdrop for harvesting grapes, as vineyards bask in the remaining warmth, ensuring that Chablis retains its allure well into the fall. With each passing month, the transition becomes more pronounced, yet September holds a unique charm, blending the lingering warmth of summer with the crisp promise of autumn.

Monthly Sunshine Duration in Chablis: September Highlighted

The September sunshine duration represents the total number of hours Chablis 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.
JanFebMarAprMayJunJulAugSepOctNovDec118h205h265h351h379h404h410h381h326h260h195h153h
Data source: Chablis September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chablis During September

In Chablis, France, the likelihood of sunny weather undergoes a notable transformation as the year progresses. By the time September arrives, residents and visitors can expect a 46% chance of sunshine, mirroring the optimism of spring where March and April surpass it with 46% and 58%, respectively. Though September's sun chance is slightly below these earlier months, it marks a welcome reprieve from the summer slump, where May, June, July, and August all hover around the 35% to 40% range. Heading into autumn, the chances diminish again, but September stands out as a vibrant month, perfect for savoring the breathtaking vineyards and the region's renowned wines under the gentle sun.

Percentage of Sunny Days in September in Chablis

The chart illustrates the percentage of sunny days in Chablis 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 Chablis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%33%46%58%35%39%38%40%46%42%25%31%
Data source: Chablis September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chablis in September

As summer wanes into September in Chablis, France, the days begin to shorten, transitioning from the sun-drenched brilliance of earlier months to the gentle embrace of autumn. With an average of 12 hours of daylight, September retains a hint of summer's vitality, but it's clear that the longer days of June, July, and August have given way to shorter intervals of light. This gradual reduction reflects a steady decline, as daylight peaks at 15 hours during the height of summer before easing into the 10 hours typical of October. September's balanced daylight offers a unique opportunity to savor the lingering warmth of late summer while preparing for the cozy, shorter days that lie ahead.

Average Daylight Hours in Chablis for September

The chart illustrates the variation in daylight duration in Chablis throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 53m10h 14m11h 56m13h 40m15h 9m15h 55m15h 30m14h 11m12h 31m10h 47m9h 16m8h 27m
Data source: Chablis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Chablis

In September, the winds in Chablis begin to ease, with an average wind speed of 2.6 m/s (6 mph), marking a noticeable decline from the summer months. This gentle breeze sets the stage for the transition into fall, reflecting a trend of decreasing wind speeds from the more blustery spring months, where averages hovered around 3.5 to 4.2 m/s. As the year progresses, September's serene atmosphere invites a sense of calm, contrasting with the earlier energy of summer. This pattern not only enhances the beauty of the vineyards but also amplifies the allure of Chablis, as wine enthusiasts may find themselves captivated by the tranquil charm of the season.

Average September Wind Speed in Chablis

The chart displays monthly wind speed patterns in Chablis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.93.93.53.44.22.53.33.12.6 m/s3.53.03.8
Data source: Chablis September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Chablis Compares to Other Months

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

September and January present contrasting weather conditions. In September, temperatures range from a mild 3°C (38°F) at night to a warm 35°C (95°F) during the day, with an average of 17°C (63°F). The month experiences moderate precipitation of 54 mm (2.1 in) over about 8 days, accompanied by a relatively lower humidity of 78%. In stark contrast, January sees colder temperatures, with a minimum of -8°C (17°F), an average of 4°C (39°F), and a maximum of 15°C (59°F). It is also wetter, with 82 mm (3.2 in) of rain falling over approximately 13 days and higher humidity at 91%. For a more detailed look at January weather in Chablis, you can explore Chablis weather in January.

September and February showcase a stark contrast in weather patterns. September typically experiences milder temperatures, with a minimum of 3°C (38°F), an average of 17°C (63°F), and a maximum reaching up to 35°C (95°F). This month sees an average of 54 mm (2.1 in) of precipitation over about 8 days, with humidity levels around 78%. In contrast, February is markedly colder, featuring a minimum of -8°C (18°F), an average of 6°C (43°F), and a maximum of 21°C (70°F). February also has a higher precipitation amount at 69 mm (2.7 in) spread over 12 days, accompanied by increased humidity at 89%. For more detailed weather information, you can explore Chablis weather in February.

September and March present quite contrasting weather patterns. In September, temperatures range from a pleasant minimum of 3°C (38°F) to a balmy maximum of 35°C (95°F), with an average of 17°C (63°F) and relatively low humidity at 78%. The month sees about 54 mm (2.1 in) of precipitation over approximately 8 days. In contrast, March experiences much cooler temperatures, with a minimum of -11°C (12°F) and an average of 8°C (47°F), peaking at a maximum of 25°C (77°F). This month is wetter, accumulating 79 mm (3.1 in) of rain over about 14 days and higher humidity at 86%. For more detailed insights into the weather trends in March, you can explore Chablis weather in March.

When comparing September and April weather, it's evident that September is generally warmer, with average temperatures around 17°C (63°F) compared to April's 11°C (52°F). While September can reach highs of 35°C (95°F), April's maximum temperature is typically around 28°C (82°F). Precipitation is slightly higher in September at 54 mm (2.1 in) over 8 days, compared to April's 37 mm (1.5 in) over 7 days. Humidity levels remain relatively high in both months, with September at 78% and April at 84%. For more specific insights on April weather, you can check Chablis weather in April.

When comparing the weather in September and May, September generally offers warmer temperatures, with a minimum of 3°C (38°F) and an average of 17°C (63°F), compared to May's cooler minimum of 0°C (33°F) and average of 14°C (58°F). However, both months experience relatively similar maximum temperatures, with September reaching up to 35°C (95°F) and May peaking at 32°C (89°F). Precipitation is higher in May, totaling 79 mm (3.1 in) over approximately 12 days, while September sees 54 mm (2.1 in) across 8 days, making September slightly drier. Humidity levels are also comparable, with September at 78% and May slightly higher at 82%. For more details, check out Chablis weather in May.

When comparing the weather in September and June, one can observe notable differences in temperature and precipitation patterns. September typically features a minimum temperature of 3°C (38°F) and an average of 17°C (63°F), peaking at 35°C (95°F). In contrast, June is slightly warmer with a minimum of 7°C (45°F), an average of 19°C (67°F), and a maximum reaching 38°C (100°F).

Precipitation levels also diverge, with September receiving 54 mm (2.1 in) over about 8 days, while June has a higher total of 75 mm (3.0 in) spread across roughly 10 days. Humidity levels remain similar in both months, with September at 78% and June slightly higher at 82%. For more details on the climate specifics of June, you can refer to Chablis weather in June. Overall, September tends to provide a more moderate climate than the warmer, wetter conditions experienced in June.

In comparing the weather between September and July, September tends to showcase a wider temperature range, with minimum temperatures dropping to 3°C (38°F), while July starts at a warmer 8°C (46°F). The average temperatures reflect this as well, with September's average at 17°C (63°F) compared to July's 21°C (70°F). Although both months experience similar levels of precipitation, with September receiving 54 mm (2.1 in) and July just slightly less at 51 mm (2.0 in), July typically feels more humid at 79%, compared to September's 78%. For a closer look at July's detailed climate conditions, you can check out this link: Chablis weather in July.

In comparing the weather of September and August, September brings a slight decrease in minimum temperatures, averaging 3°C (38°F) compared to August’s 6°C (42°F). However, September's averages are more comfortable at 17°C (63°F) versus August's 20°C (69°F), with both months experiencing high maximum temperatures around 35°C (95°F) and 37°C (100°F) respectively. Precipitation levels are slightly higher in September at 54 mm (2.1 in) over 8 days, compared to August's 47 mm (1.9 in) over 9 days. Additionally, September's humidity is marginally higher at 78% compared to 72% in August. For a closer look at August weather specifics, you can visit Chablis weather in August.

September typically experiences warmer temperatures with a minimum of 3°C (38°F) and average highs reaching up to 35°C (95°F), while October sees a noticeable drop in temperatures, with a minimum of 0°C (33°F) and an average high of 27°C (81°F). Additionally, October tends to be wetter, with 76 mm (3.0 in) of precipitation over 13 days compared to September’s 54 mm (2.1 in) over 8 days. The humidity also rises in October, reaching 88%, up from September’s 78%. For a more detailed look at the weather during this month, you can check Chablis weather in October.

September and November present striking contrasts in weather conditions. In September, temperatures range from a mild minimum of 3°C (38°F) to a warm maximum of 35°C (95°F), with an average of 17°C (63°F) and a moderate humidity of 78%. The month sees around 54 mm (2.1 in) of precipitation over approximately 8 days. In contrast, November brings cooler temperatures, with a minimum of -3°C (27°F) and an average of 7°C (45°F), peaking at a much lower maximum of 21°C (70°F). This month experiences increased humidity at 91% and higher precipitation levels of 69 mm (2.7 in) across about 13 days. For more detailed insights into November weather, check out Chablis weather in November.

In September, the weather features a minimum temperature of 3°C (38°F) and averages around 17°C (63°F), with maximums soaring to 35°C (95°F), creating a warm and variable climate. The month experiences 54 mm (2.1 in) of precipitation over approximately 8 days, accompanied by a humidity level of 78%. In contrast, December brings a significant drop in temperature, with minimums reaching -5°C (24°F) and averages settling at 6°C (42°F). The maximum temperature cap is much lower at 17°C (62°F). This month is also wetter, with 121 mm (4.8 in) of precipitation over 17 days, and humidity rises to a notable 93%. For more details on December weather, you can visit Chablis weather in December.

Compare Chablis's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Chablis

As September unfolds in Chablis, the weather embodies a unique transition, blending the lingering warmth of summer with the crispness of autumn. Temperature fluctuations become more pronounced, with some days still basking in warmth while nights can be surprisingly cool. Humidity levels increase, contributing to the rich tapestry of the region’s changing landscape. Although precipitation begins to rise with a few rainy days, it serves to refresh the vibrant vineyards and enhance the beauty of the countryside. This evolving climate not only shapes the local scenery but also influences the region's renowned wine production. For more insights into Chablis’ weather patterns, visit Chablis Climate.