September Weather in Le Treport, France

Last updated: February 26, 2025

In September, Le Treport, France experiences a delightful transition from summer to autumn, with average temperatures hovering around 16°C (61°F). Maximum highs can reach up to 29°C (85°F), offering warm days perfect for exploration, while cool evenings drop to a refreshing 4°C (40°F). The region sees about 57 mm (2.2 in) of rainfall spread across 12 days, contributing to a relatively high humidity level of 76%. This blend of warmth and moisture creates an inviting atmosphere, ideal for enjoying the scenic charm of this picturesque coastal town.

September Temperature in Le Treport

In September, Le Treport experiences a delightful transition as summer fades into autumn. The minimum temperature hovers around 4°C (40°F), offering a crispness in the air that invigorates the senses. Average temperatures settle at a comfortable 16°C (61°F), with pleasant afternoons reaching up to 29°C (85°F), making it one of the last opportunities to enjoy the warmth of the season. This month marks a shift from the high heat of July and August, as the days gradually shorten and cooler breezes emerge, yet the lingering warmth encourages outdoor exploration and scenic coastal walks. The blend of mild temperatures and stunning natural beauty creates an enchanting atmosphere that captivates both locals and visitors alike.

September Weather in Le Treport: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Le Treport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414346505663666560554744
Data source: Temperature data for Le Treport 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 Le Treport

In September, Le Tréport experiences a moderate level of precipitation, with 57 mm (2.2 in) of rainfall recorded over 12 days. This marks a slight decline from the more substantial rainfall seen during the summer months, particularly August, which had 81 mm (3.2 in). While September's weather begins to hint at the approaching autumn, it still maintains a comfortable average compared to the heavier rains that follow in October and December. This transition showcases a gradual shift as the region moves from the warmer summer season to the cooler, wetter months ahead, making September a time of balanced conditions in this picturesque coastal town.

September Precipitation Trends in Le Treport

The chart displays monthly precipitation patterns in Le Treport, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6766783684755281579079118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Le Treport

As autumn approaches in Le Tréport, France, September experiences a noticeable shift in humidity, dropping to 76%. This marks a departure from the summer months, where humidity levels peaked at a comfortable 68% in August. While September's humidity is higher than during the height of summer, it is still significantly lower than the damp atmosphere of the winter months, such as January and December, where levels soar to 91% and 93% respectively. This gradual transition from the warmth of summer to the cool embrace of autumn not only enhances the crispness of the sea air but also sets the stage for a beautiful, albeit more humid, October, when levels rebound to 88%. The trend showcases an intriguing interplay between seasonal warmth and moisture, inviting visitors to experience the charm of Le Tréport as it slips into fall.

September Average Humidity in Le Treport

This chart illustrates the average monthly humidity levels in Le Treport, 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%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Le Treport

As summer wanes in Le Treport, September ushers in a UV Index of 5, categorizing the sun's rays as moderate. This marks a noticeable decline from the peak very high indices during the summer months of June, July, and August, which compelled sun-seekers to limit their exposure to just 15 minutes. With the burn time extending to 30 minutes this month, it's a great opportunity to enjoy the lingering warmth while taking precautions. This trend of decreasing UV levels signals a transition towards autumn, making September a lovely time to soak up the sun's rays responsibly. For more information on managing your sun exposure, visit Le Treport UV Index.

Maximum UV Index Levels in Le Treport for September

The chart shows the monthly maximum UV Index (UVI) for Le Treport 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.
JanFebMarAprMayJunJulAugSepOctNovDec234679885421
Data source: Le Treport 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 Le Treport

As summer nurtures a gradual farewell, September in Le Tréport embraces a balanced blend of warmth and crispness, evidenced by 322 hours of sunshine. This marks a gentle decline from the sun-drenched heights of July and June, which basked in over 400 hours, while still offering a delightful contrast to the chillier months that follow. The sun steadily arcs downward through autumn, moving from 396 hours in May to a notable dip alongside the 258 hours of October. This seasonal transition creates the perfect backdrop for leisurely strolls along the coast, where the vibrant colors of nature echo the lingering sunlight, inviting both locals and visitors to savor the last golden days before winter's embrace.

Monthly Sunshine Duration in Le Treport: September Highlighted

The September sunshine duration represents the total number of hours Le Treport 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.
JanFebMarAprMayJunJulAugSepOctNovDec120h192h273h352h396h410h416h383h322h258h196h159h
Data source: Le Treport September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Le Treport During September

In Le Tréport, France, September heralds a shift towards the cooler months, yet it maintains a 37% chance of sunny weather, reminiscent of the summer vibe. Interestingly, this figure aligns closely with the chances seen in May and the preceding months of June and July, which hover around the same percentage. This consistency suggests that while autumn begins to creep in, there's still opportunity to bask in the sun's warmth before winter settles in. Notably, the trend indicates a gradual decline in sunny days as the year progresses, leaving September as a delightful bridge between the vibrant summer and the crisp autumn, perfect for enjoying the coastal charm of this picturesque locale.

Percentage of Sunny Days in September in Le Treport

The chart illustrates the percentage of sunny days in Le Treport 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 Le Treport experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%28%43%57%37%30%36%34%37%34%26%20%
Data source: Le Treport September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Le Treport in September

In Le Tréport, France, September marks a gentle transition from the long, sun-soaked days of summer to the shorter daylight hours of autumn. With an average of 12 hours of daylight, the month reflects a gradual decline from the peak of 16 hours experienced in June. This decrease continues a trend seen throughout the year, where daylight reaches its maximum in late spring and then gradually tapers off. As the seasons shift, September offers a perfect balance, providing vibrant golden hues in the early evenings, inviting locals and visitors alike to enjoy the stunning coastal scenery before the crispness of fall takes hold.

Average Daylight Hours in Le Treport for September

The chart illustrates the variation in daylight duration in Le Treport throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 36m10h 5m11h 55m13h 48m15h 26m16h 16m15h 50m14h 22m12h 33m10h 41m9h 1m8h 8m
Data source: Le Treport daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Le Treport

In September, the winds in Le Tréport, France, tend to soften, with an average speed of 3.3 m/s (7 mph), marking one of the calmer months of the year. This decline follows the summer’s breezy embrace, which typically hovers around 3.9 m/s (9 mph) in August. The gentle September gusts invite leisurely coastal strolls, contrasting with the briskness of the earlier months like January and February, where winds often peak at 4.4 m/s (10 mph) and 5.0 m/s (11 mph) respectively. As the seasons shift, September's tranquility hints at the more variable conditions to come in October, suggesting a cyclical dance of wind patterns that embodies the charm and unpredictability of coastal living.

Average September Wind Speed in Le Treport

The chart displays monthly wind speed patterns in Le Treport, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.45.04.53.74.82.93.63.93.3 m/s4.53.84.7
Data source: Le Treport September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Le Treport Compares to Other Months

The weather in Le Treport 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 Le Treport and find detailed weather information for every month.

September and January present stark contrasts in weather conditions. In September, temperatures typically range from a milder minimum of 4°C (40°F) to a pleasant maximum of 29°C (85°F), averaging around 16°C (61°F). This month experiences about 57 mm (2.2 in) of precipitation over roughly 12 days, accompanied by moderate humidity levels at 76%. In contrast, January brings colder temperatures, with a minimum dropping to -6°C (22°F) and a maximum of only 15°C (59°F), averaging 5°C (41°F). Precipitation slightly increases to 67 mm (2.7 in) over 11 days, alongside higher humidity at 91%. For more specific details on January weather, you can visit Le Treport weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a mild 4°C (40°F) at night to a warm 29°C (85°F) during the day, with an average of 16°C (61°F). The month sees moderate precipitation of 57 mm (2.2 in) across about 12 days, accompanied by a humidity level of 76%. In stark contrast, February experiences colder temperatures, with nighttime lows plunging to -6°C (21°F) and daytime highs peaking at 18°C (64°F), averaging only 6°C (43°F). Precipitation slightly increases to 66 mm (2.6 in) but remains consistent with 12 rainy days, while the humidity rises to 89%. For more details on February weather, you can visit Le Treport weather in February.

September and March present distinctly contrasting weather patterns. In September, temperatures typically range from a mild 4°C (40°F) at night to a warm 29°C (85°F) during the day, with an average of 16°C (61°F). The month experiences about 57 mm (2.2 in) of precipitation over 12 days, accompanied by a relatively moderate humidity level of 76%. In contrast, March sees colder conditions, with a minimum temperature of -8°C (18°F) and a maximum of 23°C (73°F), leading to an average of only 8°C (46°F). This month is wetter, recording 78 mm (3.1 in) of precipitation across 15 days, and more humid, with levels reaching 85%. For more detailed insights into weather conditions during March, visit Le Treport weather in March.

In comparing the weather of September and April, we see distinct differences in temperature and precipitation. September boasts a milder range with minimum temperatures around 4°C (40°F) and averages peaking at 16°C (61°F), while April, with its cooler minimum of -1°C (30°F) and an average of 10°C (51°F), marks the transition into spring. Both months experience a fair amount of rainfall, but September tends to be wetter with 57 mm (2.2 in) over approximately 12 days, compared to April's 36 mm (1.4 in) across 8 days. Humidity levels are also notable, with April slightly higher at 84%, compared to 76% in September. For a detailed look at April weather, you can visit Le Treport weather in April.

In September, temperatures in Le Treport range from a minimum of 4°C to a pleasant average of 16°C, peaking at a warm 29°C. The month experiences about 57 mm of precipitation over 12 days, with humidity levels around 76%. In contrast, May offers slightly cooler conditions, with temperatures starting at a minimum of 3°C, averaging 13°C, and reaching a maximum of 26°C. Rainfall is heavier in May, totaling 84 mm over 13 days, accompanied by higher humidity at 82%. For a detailed overview, visit Le Treport weather in May.

September and June exhibit notable differences in weather patterns. In September, temperatures range from a cooler minimum of 4°C (40°F) to a maximum of 29°C (85°F), with an average of 16°C (61°F), while June offers warmer conditions, with temperatures starting at a minimum of 7°C (45°F) and climbing to a maximum of 33°C (92°F), averaging 17°C (63°F). Precipitation in September is slightly lower at 57 mm (2.2 in) over 12 days, compared to June's 75 mm (2.9 in) across 11 days. Humidity levels are similarly high, with September at 76% and June at 80%. For more detailed insights about the weather during the month of June, visit Le Treport weather in June.

In comparing the weather of September and July, we observe notable differences. September features a wider range of temperatures, with a minimum of 4°C (40°F) and a maximum of 29°C (85°F), while July tends to be warmer, with minimums of 9°C (48°F) and maximums peaking at 39°C (102°F). Humidity levels are slightly higher in September at 76% compared to July's 73%, which may contribute to a more comfortable yet damp atmosphere as summer transitions into fall. Precipitation in both months is comparable, with September experiencing 57 mm (2.2 in) over approximately 12 days and July seeing slightly less at 52 mm (2.1 in) over 10 days. For a closer look at what to expect in July, you can check Le Treport weather in July.

In comparing the weather of September and August, we observe notable differences in both temperature and precipitation patterns. September experiences a wider temperature range, with a minimum of 4°C (40°F), an average of 16°C (61°F), and a maximum of 29°C (85°F), resulting in milder conditions compared to August, which has a warmer minimum of 9°C (49°F), an average of 18°C (65°F), and peaks at a scorching 36°C (98°F). Additionally, September sees slightly less precipitation at 57 mm (2.2 in) over 12 days, while August is wetter, recording 81 mm (3.2 in) over 13 days. Interestingly, September's humidity is higher at 76% compared to August's 68%. For a more detailed look at August weather in the area, you can check Le Treport weather in August.

September weather typically showcases warmer temperatures, with daily averages around 16°C (61°F) and maximums reaching up to 29°C (85°F). In contrast, October experiences a notable drop, with average temperatures falling to 13°C (55°F) and highs peaking at 24°C (76°F). Additionally, October brings increased rainfall, totaling 90 mm (3.5 in) over 13 days, compared to September's 57 mm (2.2 in) over 12 days. Humidity also rises, reaching 88% in October compared to 76% in September. For more detailed information on October weather patterns, visit Le Treport weather in October.

In September, the weather is generally milder, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (85°F) and an average of 16°C (61°F). The month sees around 57 mm (2.2 in) of precipitation spread over approximately 12 days, with a humidity level of 76%. In contrast, November brings cooler temperatures, with a minimum of -1°C (31°F) and an average of only 8°C (47°F). The maximum temperature in November reaches 18°C (65°F), while precipitation increases to 79 mm (3.1 in) over 13 days, coupled with higher humidity at 92%. For a more detailed look at the weather, you can check out Le Treport weather in November.

In September, the weather is generally milder with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (85°F) and an average of 16°C (61°F). This month experiences moderate precipitation of 57 mm (2.2 in) over about 12 days, along with a humidity level of 76%. By contrast, December brings much cooler temperatures, with a minimum of -3°C (27°F), an average of 7°C (44°F), and a maximum of 15°C (58°F). The precipitation in December is significantly higher at 118 mm (4.6 in), occurring across roughly 18 days, and humidity rises to 93%. For more details on December weather specifics, you can check Le Treport weather in December.

Compare Le Treport's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Le Treport

As September unfolds in Le Treport, it brings a unique shift in weather compared to the summer months. Temperatures start to cool, with a more moderate average that provides a refreshing break from the heat. While the days may still reach pleasant highs, the evenings feel notably crisper, hinting that autumn is on the horizon. Rainfall becomes more frequent, with several days of precipitation, contributing to a sublime humidity level that keeps the air feeling fresh and invigorating. This blend of conditions makes September a transitional period, showcasing the charm of Le Treport just before the full onset of fall. For a deeper understanding of what to expect throughout the year, check out Le Treport Climate.