September Weather in Montpellier, France

Last updated: February 26, 2025

In Montpellier, France, September offers a delightful blend of warm days and refreshing evenings, with maximum temperatures reaching 29°C (84°F) and an average of 21°C (70°F). As summer transitions to autumn, the charming city experiences a comfortable climate, although occasional rainfall can occur, with an average precipitation of 48 mm (1.9 in) over approximately 5 days. Humidity levels hover around 70%, lending a touch of moisture to the air and enhancing the vibrant atmosphere of this historic locale. Whether strolling through sun-drenched streets or enjoying a cool evening breeze, September in Montpellier is truly a season to savor.

September Temperature in Montpellier

As September unfolds in Montpellier, the lingering warmth of summer begins to ease into the gentle embrace of autumn. With minimum temperatures around 12°C (54°F) and maximums peaking at a comfortable 29°C (84°F), the month showcases an appealing average of 21°C (70°F). This transitional period offers a delightful balance, allowing residents and visitors alike to enjoy mild days and cooler evenings. Compared to the sweltering peak of summer, when temperatures soared past 35°C (95°F) in June and July, September brings a welcome respite, providing the perfect backdrop for leisurely outdoor activities amidst the city’s vibrant ambiance.

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

The chart illustrates September temperature patterns in Montpellier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec485153576371757570635550
Data source: Temperature data for Montpellier 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 Montpellier

September in Montpellier marks a gentle transition from the drier summer months to a more vibrant fall. With an average precipitation of 48 mm (1.9 in) over 5 days, the city experiences a mild uptick in rainfall compared to the preceding summer, yet it remains significantly lower than what is seen in the wetter months like October and November. This gradual increase hints at the changing seasons, as the lush landscapes prepare for autumn. The trend of increased precipitation is evident, as September often acts as a bridge, leading to the more substantial rainfall that follows in October, where the average can nearly double to 97 mm (3.8 in). This characteristic of September not only nourishes the environment but also offers a refreshing respite from the summer heat, setting the stage for the enchanting colors of fall.

September Precipitation Trends in Montpellier

The chart displays monthly precipitation patterns in Montpellier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6643597157281227489713653
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Montpellier

In September, Montpellier experiences a noticeable shift in humidity, settling at a comfortable 70% after the warm summer months. This figure reflects a slight increase from August's low of 63%, signaling the onset of autumn. As the year progresses, humidity levels tend to rise; for instance, October sees a notable jump to 80%, while the winter months bring even higher levels, peaking at 84% in November. The overall trend reveals a gradual decline in humidity from January through August, followed by a resurgence as the seasons change, creating a dynamic climate throughout the year that both residents and visitors can appreciate.

September Average Humidity in Montpellier

This chart illustrates the average monthly humidity levels in Montpellier, 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%77%73%73%71%67%66%63%70%80%84%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Montpellier

As summer gives way to autumn in Montpellier, September marks a transition in the UV Index, reflecting a shift from the intense sun of the previous months. With a UV Index of 7, categorized as high, residents can expect a burn time of approximately 25 minutes without protection. This decrease from the peak levels of 10 in July and June indicates that while the sun's rays are still potent, they are becoming less relentless. It's a reminder for sun lovers to enjoy the waning warmth of early fall, but still stay vigilant about skin protection. As temperatures cool, ensure you stay informed about daily UV levels by checking the Montpellier UV Index to make the most of your outdoor activities safely.

Maximum UV Index Levels in Montpellier for September

The chart shows the monthly maximum UV Index (UVI) for Montpellier 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.
JanFebMarAprMayJunJulAugSepOctNovDec24579101097532
Data source: Montpellier 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 Montpellier

September in Montpellier shines with an impressive 343 hours of sunshine, marking a gentle transition from the vibrant summer months. This figure reflects a slight decline from the peak brightness of July's 434 hours, yet it remains significantly higher than the early months of the year. As the city begins to embrace the cooler autumn air, the sun's rays continue to grace the region, providing a warm glow reminiscent of summer's end. This delightful decrease leads into October's 300 hours, indicating that while the days may be shortening, the charm of Montpellier's sunny ambiance lingers a little longer, inviting residents and travelers alike to enjoy the golden hues of early fall.

Monthly Sunshine Duration in Montpellier: September Highlighted

The September sunshine duration represents the total number of hours Montpellier 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.
JanFebMarAprMayJunJulAugSepOctNovDec196h256h329h350h404h422h434h402h343h300h256h237h
Data source: Montpellier September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Montpellier During September

In Montpellier, France, the likelihood of sunny weather shows a distinctive trend throughout the year, peaking in August with a high 72% chance of sunshine. As summer transitions into autumn, September sees a decline in sunny days, dropping to 44%, which aligns with the cooler weather approaching. This percentage stands alongside other transitional months like April and May, but is relatively lower than the summer months, reflecting the shift in seasonal dynamics. While sunshine in September remains a possibility, visitors can expect a mix of sun and the onset of fall as the city gears up for its vibrant autumn hues.

Percentage of Sunny Days in September in Montpellier

The chart illustrates the percentage of sunny days in Montpellier 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 Montpellier experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec42%29%60%53%44%57%60%72%44%57%53%50%
Data source: Montpellier September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Montpellier in September

As summer transitions to autumn in Montpellier, September offers a comforting embrace with 12 hours of daylight. This month marks a gentle retreat from the peak of summer, where daylight reached its zenith at 15 hours in both June and July. The gradual decrease from August’s 13 hours signals the onset of fall, inviting residents and visitors alike to savor the softer light and milder temperatures. As days become shorter, the balance of daylight hints at the upcoming shift into October, where daylight reduces to 10 hours, reminding us of nature's rhythmic cycles. Overall, September serves as a beautiful bridge between the vibrancy of summer and the cozy charm of fall.

Average Daylight Hours in Montpellier for September

The chart illustrates the variation in daylight duration in Montpellier throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 20m10h 29m11h 57m13h 26m14h 42m15h 21m15h13h 53m12h 27m10h 58m9h 39m8h 59m
Data source: Montpellier daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Montpellier

As September arrives in Montpellier, the gentle breeze begins to soften, with average wind speeds dipping to 4.2 m/s (9 mph), the lowest of the year. This marks a distinct shift from the earlier months where spring and summer breezes maintained a more robust presence. While January through May showcased a lively 6.0 m/s (13 mph) peak in windiness, the summer months yielded a decline, with winds settling into a consistent 10 mph rhythm by July and August. The gentle winds of September signal the onset of autumn, providing a tranquil backdrop as temperatures begin to cool. Surprisingly, this lull precedes a notable uptick in October, where winds pick up again, reflecting the shifting seasons and natural ebb and flow characteristic of Montpellier’s climate.

Average September Wind Speed in Montpellier

The chart displays monthly wind speed patterns in Montpellier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.85.34.74.65.14.54.54.34.2 m/s5.46.05.0
Data source: Montpellier September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Montpellier Compares to Other Months

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

In September, Montpellier enjoys milder temperatures with a minimum of 12°C (54°F), an average of 21°C (70°F), and a maximum of 29°C (84°F). The weather is relatively pleasant with lower humidity at 70% and less precipitation, totaling 48 mm (1.9 in) over just 5 days. Conversely, January brings cooler weather, with temperatures dropping to a minimum of 1°C (35°F) and reaching a maximum of 17°C (63°F), averaging only 9°C (48°F). The month is slightly wetter, experiencing 65 mm (2.6 in) of precipitation across 8 days, and higher humidity levels at 82%. For a deeper dive into January weather conditions, you can check Montpellier weather in January.

The weather in September and February presents a stark contrast in temperatures and overall climate. September boasts milder temperatures, with a minimum of 12°C (54°F) and an average of 21°C (70°F), reaching a maximum of 29°C (84°F). In contrast, February experiences chilly conditions, with temperatures dipping to a minimum of -2°C (29°F) and averaging around 10°C (51°F), peaking at just 19°C (66°F). Additionally, while September sees about 48 mm (1.9 in) of precipitation over 5 days, February follows closely with 43 mm (1.7 in) of rain but spreads it over 8 days. Humidity levels are also higher in February at 77%, compared to September's 70%. For more detailed insights, check out Montpellier weather in February.

In comparing the weather of September and March, it's evident that September is generally warmer, with average temperatures around 21°C (70°F) and a maximum of 29°C (84°F), while March has a cooler average of 12°C (54°F) and peaks at 20°C (68°F). Precipitation levels are relatively close, with September receiving 48 mm (1.9 in) over about 5 days, compared to March's 59 mm (2.3 in) spread across 7 days. Humidity is slightly higher in March at 73%, compared to September's 70%. For more detailed insights, you can check the Montpellier weather in March.

In comparing the weather of September and April, September is generally warmer, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 29°C (84°F), while April's temperatures are cooler, averaging between 5°C (41°F) and 22°C (73°F). However, April tends to be wetter, receiving more precipitation at 71 mm (2.8 in) over 8 days compared to September's 48 mm (1.9 in) across 5 days. Both months experience relatively high humidity, with September at 70% and April slightly higher at 73%. For more detailed insights on April weather, you can check Montpellier weather in April.

In comparing the weather between September and May, September typically enjoys warmer temperatures, with an average of 21°C (70°F) and a maximum of 29°C (84°F), while May averages a cooler 17°C (64°F) with a high of 27°C (80°F). Despite September's higher average temperature, May experiences slightly more rainy days, with precipitation occurring on 7 days compared to 5 days in September. Both months have similar humidity levels, around 70-71%. For more detailed insights into May's weather patterns, you can check Montpellier weather in May.

When comparing the weather in September and June, we see some distinct differences. June generally offers warmer temperatures, with average highs reaching up to 35°C (95°F), compared to September's maximum of 29°C (84°F). Both months experience similar levels of precipitation, with September receiving 48 mm (1.9 in) and June slightly less at 28 mm (1.1 in), although both see rainfall on about five days. Additionally, September has a slightly higher humidity level at 70%, whereas June sits at 67%. For a more detailed look at the June weather, check out Montpellier weather in June.

In September, the weather begins to cool down with a minimum temperature of 12°C (54°F) and an average of 21°C (70°F), peaking at a maximum of 29°C (84°F). This month experiences about 48 mm (1.9 in) of precipitation over 5 days, with a humidity level around 70%. In contrast, July is warmer, with a minimum of 16°C (61°F), an average of 24°C (76°F), and a maximum of 32°C (90°F). July is also drier, receiving only 12 mm (0.5 in) of rainfall over just 2 days, while humidity hovers slightly lower at 66%. For more information on July weather, check Montpellier weather in July.

In comparing the weather of September and August, it’s clear that September experiences cooler temperatures, with a minimum of 12°C (54°F) and an average of 21°C (70°F), while August is warmer, featuring a minimum of 17°C (63°F) and an average of 24°C (75°F). The maximum temperature also reflects this trend, peaking at 29°C (84°F) in September compared to 32°C (90°F) in August. Additionally, September sees more precipitation, totaling 48 mm (1.9 in) over five days, whereas August has a relatively drier experience with only 27 mm (1.1 in) over three days. Humidity levels are higher in September at 70% compared to 63% in August, contributing to a feeling of mugginess as the summer transitions into fall. To explore more about the weather in August, visit Montpellier weather in August.

In September, the weather tends to be warmer with average temperatures reaching 21°C (70°F) and a maximum of 29°C (84°F), whereas October sees a noticeable drop, with an average of 17°C (63°F) and highs of 25°C (77°F). Additionally, September experiences 48 mm (1.9 in) of precipitation over about 5 days, while October is notably wetter, receiving 97 mm (3.8 in) of rain on 9 days. Humidity levels also rise from 70% in September to 80% in October, contributing to a more damp feel as the month progresses. For more detailed insights into October's climate, you can check out Montpellier weather in October.

September typically offers warmer temperatures compared to November, with minimums around 12°C (54°F) and an average of 21°C (70°F), peaking at 29°C (84°F). In contrast, November experiences cooler weather, with temperatures dropping to a minimum of 6°C (42°F) and an average of 13°C (56°F), reaching a maximum of 19°C (67°F). Additionally, November sees significantly more rainfall, totaling 136 mm (5.3 in) over 12 days, compared to September's 48 mm (1.9 in) across just 5 days. The humidity also rises in November to 84%, higher than September's 70%. For more details, check out Montpellier weather in November.

In September, the weather in Montpellier is notably warmer, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 29°C (84°F), creating a pleasant environment for outdoor activities. The humidity is moderate at 70%, and the month experiences about 48 mm (1.9 in) of precipitation over five days. In contrast, December brings cooler temperatures, with an average that dips to 10°C (51°F), peaking at 18°C (64°F) and falling to a minimum of 3°C (38°F). The humidity rises to 83%, contributing to a chillier atmosphere, and precipitation increases slightly to 53 mm (2.1 in) over an average of ten days. For more specifics about the December climate, you can check Montpellier weather in December.

Compare Montpellier's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Montpellier

As summer gracefully transitions into autumn, September in Montpellier offers a delightful blend of warm temperatures and moderate humidity, setting it apart from the sweltering months preceding it. With an average temperature of around 21°C (70°F), the city enjoys pleasantly warm days, while cooler evenings invite a light sweater. Rainfall is relatively low, with only a few days of precipitation, making it an ideal time for outdoor adventures and exploring the charming streets of this vibrant city. As the air becomes crisper and the landscape begins to transform, September serves as a gentle reminder that while summer fades, the beauty of Montpellier remains ever inviting. For more detailed insights, explore Montpellier Climate.