September Weather in Saint-Valery-sur-Somme, France

Last updated: February 26, 2025

Experience the captivating September weather in Saint-Valery-sur-Somme, France, where temperatures range from a cozy 4°C (40°F) at night to a balmy 29°C (84°F) during the day. The average temperature settles at a comfortable 16°C (61°F), making it a delightful time to explore this charming locale. While you may encounter 11 days of rain, with a total precipitation of 57 mm (2.2 in), the air remains humid at 80%, creating a refreshing ambiance. Embrace the beauty of September as the season transitions, offering both warm days and cool evenings to enjoy the scenic views and rich history of this picturesque town.

September Temperature in Saint-Valery-sur-Somme

In September, Saint-Valery-sur-Somme bids farewell to the sizzling summer heat, welcoming a soothing transition into early autumn. With temperatures ranging from a mild minimum of 4°C (40°F) to a comfortable maximum of 29°C (84°F), this month offers a delightful balance between warmth and coolness. The average of 16°C (61°F) makes it an inviting time to explore the picturesque town, where the gentle drop in temperature invites outdoor strolls and vibrant scenery. As summer's high peaks fade, September's climate presents a pleasant opportunity to enjoy the tranquility of the coast—perfect for those seeking both warmth and the charm of the changing season.

September Weather in Saint-Valery-sur-Somme: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Valery-sur-Somme, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414346515663666561554744
Data source: Temperature data for Saint-Valery-sur-Somme 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-Valery-sur-Somme

September in Saint-Valery-sur-Somme brings a moderate precipitation total of 57 mm (2.2 in), demonstrating a gradual shift as summer wanes. With 11 rain days, the month showcases a balanced mixture of crisp autumn air and lingering warmth, typical of the transition period. This is a noteworthy decrease compared to the wetter months of August and October, where rainfall peaks at 75 mm and 92 mm respectively. As nature prepares for the cooler months ahead, September serves as a gentle reminder of the cyclical character of the seasons, where variable weather patterns invite both sunshine and refreshing showers.

September Precipitation Trends in Saint-Valery-sur-Somme

The chart displays monthly precipitation patterns in Saint-Valery-sur-Somme, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6967753476704875579276118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Valery-sur-Somme

As September arrives in Saint-Valery-sur-Somme, France, humidity levels settle at around 80%, marking a slight increase from the drier summer months of July and August, which experienced lows of 76% and 73%, respectively. This shift reflects the typical transition towards the wetter autumn season, where humidity begins to climb once more. Notably, the trend shows a marked increase in humidity as the year progresses, with levels peaking in the cold winter months of November and December at a high of 92%. Thus, September serves as a bridge between the warmth of summer and the damp chill of autumn, making the air feel comfortably moist while hinting at the shifting seasons ahead.

September Average Humidity in Saint-Valery-sur-Somme

This chart illustrates the average monthly humidity levels in Saint-Valery-sur-Somme, 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%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Valery-sur-Somme

As summer gives way to autumn, the UV Index in Saint-Valery-sur-Somme, France, begins to moderate. In September, the UV Index sits at 5, categorizing exposure as moderate with a burn time of approximately 30 minutes. This drop from the higher levels seen in the peak summer months suggests that while sun protection is still important, the urgency decreases compared to the earlier season. The trend showcases a gradual transition as daylight shortens and temperatures cool, indicating a perfect opportunity to enjoy the beauty of early fall without the intense sun of summer. For detailed daily insights, check out the Saint-Valery-sur-Somme UV Index.

Maximum UV Index Levels in Saint-Valery-sur-Somme for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Valery-sur-Somme 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.
JanFebMarAprMayJunJulAugSepOctNovDec224679885421
Data source: Saint-Valery-sur-Somme 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-Valery-sur-Somme

September in Saint-Valery-sur-Somme is a captivating transition into autumn, boasting 329 hours of sunshine that linger pleasantly after the vibrant summer months. While this marks a reduction from the height of July’s 426 hours, it still offers more sunlight than the winter months ahead, indicating a gradual shift yet retaining its charm. As daylight begins to wane, September embraces a softer, golden hue, perfect for leisurely strolls along the picturesque waterfront and exploration of the charming streets. This month stands out with its balanced warmth, bridging the sun-drenched days of summer and the crisp, inviting air of fall, making it an ideal time for visitors to experience the beauty and tranquility of this French gem.

Monthly Sunshine Duration in Saint-Valery-sur-Somme: September Highlighted

The September sunshine duration represents the total number of hours Saint-Valery-sur-Somme 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.
JanFebMarAprMayJunJulAugSepOctNovDec127h197h284h358h410h417h426h395h329h262h208h167h
Data source: Saint-Valery-sur-Somme September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint-Valery-sur-Somme During September

September in Saint-Valery-sur-Somme presents a moderate 38% chance of sunny weather, marking a slight improvement from the summer months. As the year progresses, the likelihood of sunshine trends upward from a chilly 15% in January, peaking at 55% in April before gradually retreating again. While September's chances are higher than the preceding months of June, July, and August, they still indicate an autumn shift as the vibrant summer fades. This transitional month offers a pleasant balance, making it an appealing time for visitors who enjoy mild weather interspersed with moments of sunshine.

Percentage of Sunny Days in September in Saint-Valery-sur-Somme

The chart illustrates the percentage of sunny days in Saint-Valery-sur-Somme 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-Valery-sur-Somme experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%29%41%56%38%30%35%34%38%32%24%19%
Data source: Saint-Valery-sur-Somme September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint-Valery-sur-Somme in September

As the summer sun begins to wane, September in Saint-Valery-sur-Somme brings a gentle decline in daylight, with around 12 hours of sunlight each day. This marks a transition from the height of summer, where daylight peaked at 16 hours in June. The month sees an inviting balance—longer evenings that allow for lingering walks along the picturesque coast, yet shorter days remind us that autumn is near. Following the vibrant month of August, which boasted 14 hours of daylight, September serves as a bridge, easing us into the cozy shorter days of fall, further emphasizing the cyclical rhythm of the seasons.

Average Daylight Hours in Saint-Valery-sur-Somme for September

The chart illustrates the variation in daylight duration in Saint-Valery-sur-Somme throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 35m10h 4m11h 55m13h 48m15h 27m16h 18m15h 50m14h 22m12h 33m10h 40m9h8h 7m
Data source: Saint-Valery-sur-Somme daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Saint-Valery-sur-Somme

As September cools down in Saint-Valery-sur-Somme, the average wind speed settles at a gentle 3.4 m/s (8 mph), making it one of the calmer months of the year. This trend of decreasing wind speed begins in June, reaching its quietest point in the early autumn, a stark contrast to the conditions of winter and early spring, where gusts typically range from 4.3 to 4.9 m/s (10 to 11 mph). Interestingly, while the summer months are characterized by a moderate breeze, September's soft winds invite a tranquil atmosphere perfect for leisurely strolls along the scenic coastline. As the year progresses into autumn, the winds regain a bit of momentum, hinting at the breezier October ahead, yet for now, September offers a peaceful reprieve in this picturesque French town.

Average September Wind Speed in Saint-Valery-sur-Somme

The chart displays monthly wind speed patterns in Saint-Valery-sur-Somme, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.94.53.74.72.93.63.93.4 m/s4.43.74.7
Data source: Saint-Valery-sur-Somme September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Saint-Valery-sur-Somme Compares to Other Months

The weather in Saint-Valery-sur-Somme 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-Valery-sur-Somme and find detailed weather information for every month.

September offers a more moderate climate with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), averaging around 16°C (61°F). While it experiences some rainfall, with 57 mm (2.2 in) over 11 days, the humidity stands at a comfortable 80%. In contrast, January brings colder conditions, with temperatures dipping from a minimum of -5°C (23°F) to an average of 5°C (42°F), peaking at 15°C (59°F). This month also sees slightly more precipitation at 69 mm (2.7 in) over the same number of days, but with higher humidity levels at 91%. For more detailed information, you can check Saint-Valery-sur-Somme weather in January.

September and February present markedly different weather patterns. In September, temperatures vary from a cool 4°C (40°F) at night to a warm 29°C (84°F) during the day, with an average of 16°C (61°F). This month experiences about 57 mm (2.2 in) of precipitation over 11 days, accompanied by a humidity level of 80%. In contrast, February sees much colder conditions, with temperatures ranging from a chilling -6°C (22°F) to a milder 18°C (64°F), and an average of 6°C (44°F). Precipitation increases slightly to 67 mm (2.6 in) over 13 days, along with a higher humidity of 89%. For a more detailed look at February's weather, you can check out Saint-Valery-sur-Somme weather in February.

When comparing the weather in September and March, there's a noticeable contrast in temperatures and conditions. September typically enjoys a milder climate with average temperatures ranging from a chilly 4°C (40°F) at night to a pleasant 29°C (84°F) during the day, while March experiences cooler averages from a low of -8°C (19°F) to a high of 22°C (73°F). Additionally, March sees slightly higher precipitation levels, amounting to 75 mm (2.9 in) over 15 days, compared to September's 57 mm (2.2 in) over 11 days. Humidity levels remain high in both months, peaking at 86% in March and 80% in September, but March's chillier air makes it feel more brisk. For those interested in more detailed weather specifics, you can visit Saint-Valery-sur-Somme weather in March.

When comparing the weather in September and April, a notable difference can be seen in temperatures and precipitation levels. September boasts a wider temperature range, with minimums of 4°C (40°F) and maximums reaching up to 29°C (84°F), averaging around 16°C (61°F). In contrast, April experiences cooler temperatures, with minimums dipping to -1°C (31°F) and maximums of 25°C (78°F), averaging just 10°C (51°F). Additionally, September has higher precipitation, totaling 57 mm (2.2 in) over 11 days, while April sees less rain, with 34 mm (1.3 in) over 7 days. Humidity levels are also slightly higher in April at 85%, compared to 80% in September. For more details on April weather, check out Saint-Valery-sur-Somme weather in April.

When comparing the weather in September and May, we notice that September tends to be warmer, with average temperatures reaching 16°C (61°F) compared to May's 13°C (56°F). Both months experience similar maximum temperatures, but September can see highs of up to 29°C (84°F), while May's peaks only reach 27°C (80°F). Precipitation is slightly higher in May, totaling 76 mm (3.0 in) over 12 days, compared to September's 57 mm (2.2 in) over 11 days. Humidity levels are relatively similar, with September at 80% and May a tad higher at 82%. For more detailed information on May weather, check Saint-Valery-sur-Somme weather in May.

When comparing the weather in September and June, there are some notable differences. September typically starts off with cooler temperatures, featuring a minimum of 4°C (40°F) and a maximum of 29°C (84°F), while June is generally warmer, with a minimum of 7°C (44°F) and a maximum of 33°C (91°F). Both months experience a fair amount of precipitation, with September averaging 57 mm (2.2 in) over 11 days and June slightly wetter with 70 mm (2.7 in) over 10 days. Humidity levels are quite similar, lingering around 80% in September and 81% in June, making both months feel somewhat muggy. For more detailed insights, you can visit Saint-Valery-sur-Somme weather in June.

When comparing the weather in September and July, it's clear that July tends to be warmer overall. In July, the minimum temperature is 9°C (48°F) and can reach a scorching maximum of 38°C (102°F), with an average temperature of 19°C (66°F). In contrast, September experiences a cooler range, with minimums dropping to 4°C (40°F) and maximums reaching 29°C (84°F), leading to an average of 16°C (61°F). Additionally, July sees slightly less precipitation, totaling 48 mm (1.9 in) over 9 days, compared to September's 57 mm (2.2 in) over 11 days. Humidity levels are also marginally higher in September at 80%, compared to July's 76%. For more details on July weather, you can check Saint-Valery-sur-Somme weather in July.

When comparing the weather between August and September, it's clear that September experiences a more moderate climate. While August boasts higher temperatures with a minimum of 10°C (51°F) and a maximum of 36°C (97°F), September's temperatures range from a cooler minimum of 4°C (40°F) to a maximum of 29°C (84°F). The average temperature also drops slightly in September to 16°C (61°F), compared to August's 18°C (65°F). Precipitation in August is also more substantial at 75 mm (3.0 in) over 13 days, compared to September's 57 mm (2.2 in) spread across 11 days, resulting in slightly higher humidity in September at 80%, compared to August's 73%. For more detailed information, you can view Saint-Valery-sur-Somme weather in August.

September and October show a noticeable shift in weather characteristics as autumn progresses. In September, temperatures range from a minimum of 4°C (40°F) to a comfortable maximum of 29°C (84°F), with an average of 16°C (61°F). The month receives around 57 mm (2.2 in) of precipitation over 11 days, with humidity levels at 80%. In contrast, October sees a drop in temperatures, with a minimum of 1°C (34°F) and an average of 13°C (55°F). The maximum temperature reaches 24°C (76°F), but the month is wetter, accumulating about 92 mm (3.6 in) of rain over 13 days, along with a slight increase in humidity to 89%. For a more detailed look at October weather, you can visit Saint-Valery-sur-Somme weather in October.

September and November exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), with an average of 16°C (61°F), creating a generally mild and pleasant atmosphere. In contrast, November sees colder temperatures, with a minimum of 0°C (33°F) and a maximum of 19°C (66°F), leading to a cooler average of 8°C (47°F). Additionally, while September experiences 57 mm (2.2 in) of precipitation over 11 days, November has slightly higher precipitation at 76 mm (3.0 in) across 12 days, contributing to increased humidity levels of 92% compared to September's 80%. For more details, you can check out the Saint-Valery-sur-Somme weather in November.

In September, temperatures in Saint-Valery-sur-Somme range from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), creating a pleasant average of 16°C (61°F). The month experiences around 57 mm (2.2 in) of precipitation over 11 days, with a humidity level of 80%. In contrast, December brings much colder weather, with temperatures dropping to a minimum of -2°C (28°F) and a maximum of 14°C (58°F), resulting in an average of 7°C (44°F). Precipitation significantly increases to 118 mm (4.6 in) over 17 days, and humidity rises to 92%. For more detailed insights, visit Saint-Valery-sur-Somme weather in December.

Compare Saint-Valery-sur-Somme's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Saint-Valery-sur-Somme

As September rolls in, Saint-Valery-sur-Somme experiences a marked transition in weather, offering a refreshing blend of summer's warmth and autumn's coolness. With average temperatures lingering around a comfortable 16°C, the month's character is defined by delightful days that can peak at 29°C while still inviting cozy evenings as cooler temps dip near 4°C. The shift does bring about increased humidity at 80% and occasional light rain, with about 11 days experiencing precipitation, totaling 57 mm. This combination creates a unique atmosphere perfect for enjoying the stunning landscapes. To explore more about how September fits into the overall climate, visit Saint-Valery-sur-Somme Climate.