September Weather in Saint-Tropez, France

Last updated: February 26, 2025

September in Saint-Tropez, France offers a delightful transition from summer to autumn, with maximum temperatures reaching a pleasant 29°C (84°F) and an average of 22°C (73°F). As the days grow cooler, the minimum temperature dips to 14°C (57°F), providing a comfortable climate for visitors. Although this month experiences about 40 mm (1.6 in) of rainfall over 5 days, the humidity remains moderate at 71%, ensuring that sunny days are more common than not. This blend of warmth and occasional showers creates the perfect atmosphere for enjoying the charm and beauty of this Mediterranean gem.

September Temperature in Saint-Tropez

In September, Saint-Tropez enjoys a delightful transition into early autumn, with temperatures that create a perfect blend of warmth and comfort. The month starts with minimums averaging around 14°C (57°F) and peaks at a pleasant 29°C (84°F), ultimately delivering an enjoyable average of 22°C (73°F). This shift is notable, as it follows the summer heat, allowing visitors to bask in pleasant weather without the sweltering humidity of August. September’s warm days are ideal for beach outings and outdoor dining, while the cooler nights make for refreshing evenings under the stars. This harmonious climate invites everyone to soak in the lingering sun as summer gracefully fades into fall.

September Weather in Saint-Tropez: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Tropez, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec525354576472777872665953
Data source: Temperature data for Saint-Tropez 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 Saint-Tropez

In September, Saint-Tropez experiences a moderate shift in precipitation, receiving an average of 40 mm (1.6 in) of rain over 5 days. This amount is notably higher than the dry summer months of July and August, which see minimal rainfall at just 11 mm and 10 mm, respectively. As summer fades, the transition into autumn brings a slight increase, hinting at the wetter months ahead. Notably, September’s rainfall marks a precursor to October's significant jump to 109 mm (4.3 in), indicating a pattern where precipitation tends to escalate as the year progresses towards winter. Thus, while September may still enjoy pleasant weather, it signals the onset of a more humid and rainy season in this picturesque coastal town.

September Precipitation Trends in Saint-Tropez

The chart displays monthly precipitation patterns in Saint-Tropez, 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.
JanFebMarAprMayJunJulAugSepOctNovDec50435972442511104010914799
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Tropez

As summer fades, September in Saint-Tropez experiences a subtle shift in humidity, settling at 71%. This marks a slight increase from August's drier 66%, maintaining a comfortable level as the region transitions into autumn. Throughout the year, humidity levels generally peak during the winter months, with January and November reaching 80% and 82% respectively, while the warmest summer months, July and August, exhibit the lowest humidity levels. The gradual rise in humidity from late summer to early autumn reflects a broader trend of increasing moisture as cooler weather approaches, striking a delicate balance that keeps the Mediterranean charm of Saint-Tropez inviting for visitors.

September Average Humidity in Saint-Tropez

This chart illustrates the average monthly humidity levels in Saint-Tropez, 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.
JanFebMarAprMayJunJulAugSepOctNovDec80%74%71%75%74%72%69%66%71%78%82%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Tropez

As summer draws to a close in September, Saint-Tropez experiences a notable decline in UV intensity, with the UV Index averaging 7. This rating, categorized as high, indicates that while sun exposure is still significant, it becomes more manageable compared to the peak summer months. With a burn time of just 25 minutes, sun seekers should remain vigilant and take necessary precautions. It’s a perfect time for enjoying outdoor activities while still being mindful of sun protection — a trend reminiscent of the very high levels noted in August, which peaked at 8. As the sun's rays gradually soften towards autumn, September offers a sweet spot for those wishing to bask in the Mediterranean sun. For more detailed information about UV levels throughout the year, check out the Saint-Tropez UV Index.

Maximum UV Index Levels in Saint-Tropez for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Tropez 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.
JanFebMarAprMayJunJulAugSepOctNovDec245789987532
Data source: Saint-Tropez 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 Saint-Tropez

As the summer sun begins to wane, September in Saint-Tropez still basks in a generous 345 hours of sunshine, making it a delightful month for visitors seeking warmth and relaxation. Although this is a noticeable dip from the summer peak of 435 hours in July, it beautifully captures the essence of the Mediterranean's transition into autumn. The sunshine in September creates a perfect backdrop for leisurely strolls along the iconic beaches and vibrant markets, reminding us that the allure of this coastal paradise lingers long after the height of tourist season. With an average of 408 hours in May and 422 in June, the gradual decrease highlights a subtle shift in the rhythm of life in Saint-Tropez, where the warmth persists but with a touch of serene fall coolness.

Monthly Sunshine Duration in Saint-Tropez: September Highlighted

The September sunshine duration represents the total number of hours Saint-Tropez 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.
JanFebMarAprMayJunJulAugSepOctNovDec200h255h332h351h408h422h435h404h345h312h250h245h
Data source: Saint-Tropez September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint-Tropez During September

September in Saint-Tropez offers a refreshing blend of summer warmth and reduced crowds, with a 57% chance of sunny weather. This month stands out as a bridge between the sweltering summer peak of August, which boasts a 74% chance of sunshine, and the cooler autumn months. While sunshine is still abundant, it marks a slight dip compared to summer, suggesting that beach days are still possible without the overwhelming heat. As the season transitions, visitors can enjoy pleasant days, making it an ideal time for those seeking a more serene Mediterranean experience.

Percentage of Sunny Days in September in Saint-Tropez

The chart illustrates the percentage of sunny days in Saint-Tropez 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 Saint-Tropez experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%51%69%51%50%59%67%74%57%56%46%57%
Data source: Saint-Tropez September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint-Tropez in September

In September, daylight in Saint-Tropez begins to wane as summer gives way to autumn, offering about 12 hours of sunlight. This follows a peak in June with 15 hours, gradually tapering off through August and into the fall. The shift from the long, sun-soaked days of summer to the gentler light of early autumn creates a unique ambiance, perfect for enjoying the last warm evenings by the seaside. As the days shorten, there’s a palpable blend of lingering summer warmth and the crisp freshness of the approaching season, inviting both relaxation and exploration.

Average Daylight Hours in Saint-Tropez for September

The chart illustrates the variation in daylight duration in Saint-Tropez throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 22m10h 30m11h 57m13h 26m14h 41m15h 19m14h 59m13h 52m12h 27m10h 58m9h 41m9h
Data source: Saint-Tropez daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Saint-Tropez

As summer wanes and September arrives in Saint-Tropez, the average wind speed gently slows to 3.9 m/s (9 mph), reflecting a tranquil transition into autumn. This marks a notable drop from the peak winds of earlier months, particularly June and July, when breezes were calmer at 3.4 m/s (8 mph) and 3.8 m/s (8 mph) respectively. While September welcomes slightly stronger winds compared to the sultry summer months, it remains less gusty than the early part of the year. Notably, the month precedes an increase in wind activity as autumn sets in, with October's average rising to 4.2 m/s (9 mph). This gradual shift not only enhances Saint-Tropez's serene ambiance but also hints at the changing seasons, making it a perfect time for leisurely strolls along the stunning coastline.

Average September Wind Speed in Saint-Tropez

The chart displays monthly wind speed patterns in Saint-Tropez, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.75.34.44.35.53.43.84.03.9 m/s4.25.94.4
Data source: Saint-Tropez September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Saint-Tropez Compares to Other Months

The weather in Saint-Tropez 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 Saint-Tropez and find detailed weather information for every month.

When comparing the weather in September and January, it's clear that the two months exhibit distinct climatic characteristics. September tends to be warmer, with average temperatures around 22°C (73°F) and highs reaching up to 29°C (84°F), making it an ideal time for outdoor activities. In contrast, January experiences cooler temperatures, averaging only 11°C (52°F) and peaking at 17°C (63°F), which signifies a notable drop in warmth. Additionally, while both months see similar levels of precipitation (approximately 40 mm in September and 49 mm in January), January has slightly higher humidity at 80%, compared to September's 71%. For more detailed insights, you can visit Saint-Tropez weather in January.

September and February present quite contrasting weather patterns. In September, temperatures are generally warmer, with average highs reaching around 22°C (73°F) and maximums peaking at 29°C (84°F), while the minimum temperature is a comfortable 14°C (57°F). Precipitation levels are moderate, averaging 40 mm (1.6 in) over about five days, along with a humidity of 71%.

In contrast, February is significantly cooler, with an average temperature of 11°C (53°F), a minimum of 3°C (37°F), and a maximum of 20°C (68°F). While February experiences slightly more precipitation at 43 mm (1.7 in) over six days, the humidity remains comparable at 73%. For those interested in specific weather details, Saint-Tropez weather in February provides a comprehensive overview.

In comparing the weather between September and March, September enjoys warmer temperatures, with minimums around 14°C (57°F) and maximums reaching 29°C (84°F), creating a pleasant atmosphere for outdoor activities. In contrast, March features cooler temperatures, with minimums dropping to 4°C (40°F) and maximums at 19°C (66°F), indicating the transition from winter to spring. Although both months have the same number of rainy days, March sees slightly higher precipitation at 59 mm (2.3 in) compared to September's 40 mm (1.6 in). Notably, humidity remains consistent between the two months at 71%. For more details, visit Saint-Tropez weather in March.

When comparing the weather in September and April, a notable contrast emerges. September typically boasts warmer temperatures, with an average of 22°C (73°F) and maximum highs reaching 29°C (84°F), while April's average temperature is significantly cooler at 14°C (58°F), peaking at 22°C (72°F). Additionally, September experiences less precipitation, averaging 40 mm (1.6 in) over about 5 days, compared to April, which has higher rainfall with 72 mm (2.8 in) over approximately 7 days. Humidity levels remain relatively similar, hovering around 71% in September and 75% in April. For more insights on the weather specifics, you can visit Saint-Tropez weather in April.

When comparing the weather in September and May, September tends to be warmer, with average temperatures reaching 22°C (73°F) compared to May’s average of 18°C (64°F). The maximum temperatures in September can soar up to 29°C (84°F), while May peaks at a more comfortable 26°C (79°F). However, both months experience similar levels of precipitation, with September recording 40 mm (1.6 in) over about 5 days and May slightly higher at 43 mm (1.7 in) over 7 days. Humidity is also comparable, with September at 71% and May slightly higher at 74%. For more details on May weather, you can check Saint-Tropez weather in May.

In comparing the weather between September and June, both months feature similar average temperatures, with September offering a slightly broader range: a minimum of 14°C (57°F) to a maximum of 29°C (84°F), compared to June's minimum of 16°C (61°F) to a maximum of 30°C (87°F). While both months experience high humidity levels—71% in September and 72% in June—September tends to have more precipitation, averaging 40 mm (1.6 in) over about 5 days, whereas June sees only 25 mm (1.0 in) over just 2 days. This makes June typically drier and slightly warmer than September. For detailed insights, you can refer to Saint-Tropez weather in June.

In comparing the weather of September and July, September tends to be slightly cooler with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 29°C (84°F), while July enjoys warmer conditions, with temperatures ranging from 18°C (65°F) to a peak of 31°C (88°F). Precipitation is more common in September, with about 40 mm (1.6 in) falling over five days, whereas July experiences only 11 mm (0.4 in) over just one day. Additionally, September's humidity averages at 71%, slightly higher than July's 69%. For more detailed weather information, you can visit Saint-Tropez weather in July.

In comparison to August, September experiences a noticeable drop in temperatures, with minimums averaging 14°C (57°F) compared to August's warmer 20°C (68°F). Additionally, September's average temperature is 22°C (73°F), slightly lower than August's average of 26°C (78°F), and it peaks at a maximum of 29°C (84°F) versus August's 32°C (90°F). When it comes to precipitation, September sees increased rainfall, accumulating 40 mm (1.6 in) over 5 days, while August has a more favorable climate with only 10 mm (0.4 in) spread across 2 days. Humidity levels are also slightly higher in September at 71%, compared to August's 66%. For more details, check out Saint-Tropez weather in August.

In September, the weather is typically warmer with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 29°C (84°F), complemented by relatively low precipitation of 40 mm (1.6 in) over about 5 days and humidity at 71%. In contrast, October sees a notable drop in temperatures, averaging between 9°C (49°F) and 26°C (80°F), with increased rainfall totaling 109 mm (4.3 in) over 7 days and higher humidity levels of 78%. To learn more about October's conditions, you can visit Saint-Tropez weather in October.

In September, the weather is generally warmer, with average temperatures reaching around 22°C (73°F) and maximums peaking at 29°C (84°F). This month experiences relatively low precipitation, with only about 40 mm (1.6 in) over five days, resulting in a comfortable humidity level of 71%. In contrast, November sees a significant drop in temperatures, with averages dropping to 15°C (59°F) and a maximum of 21°C (70°F). Additionally, November experiences much higher rainfall at 147 mm (5.8 in) over twelve days and increased humidity at 82%. This stark difference highlights the transition from the warm, drier conditions of early autumn to the cooler, wetter climate typical of late fall. For more details, you can check Saint-Tropez weather in November.

Comparing the weather in September and December reveals significant changes in temperature and precipitation. In September, temperatures range from a comfortable minimum of 14°C (57°F) to a warm maximum of 29°C (84°F), with an average of 22°C (73°F). This month sees relatively low precipitation at 40 mm (1.6 in) over about 5 days, and the humidity sits at 71%. In contrast, December brings much cooler weather, with temperatures dropping to a minimum of 5°C (41°F) and a maximum of 18°C (65°F), averaging just 12°C (54°F). Precipitation increases substantially to 99 mm (3.9 in) across 8 days, accompanied by higher humidity levels at 79%. For a more detailed view of December conditions, visit Saint-Tropez weather in December.

Compare Saint-Tropez's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Saint-Tropez

As summer gracefully transitions into autumn, September in Saint-Tropez offers a delightful blend of warm temperatures and manageable humidity. With daytime highs still reaching a pleasant 29°C (84°F), it’s the perfect time to enjoy the beaches without the peak season crowds. The air feels crisp yet comfortable as the evenings cool down to around 14°C (57°F). While there’s a slight increase in rainfall compared to the drier summer months—averaging 40 mm over just a handful of days—the vibrant atmosphere remains inviting for both relaxation and exploration. This makes September a unique and captivating time to experience the charm of this iconic coastal town. For a detailed look at the year-round weather patterns, visit Saint-Tropez Climate.