Last updated: February 26, 2025
In Saint-Martin-de-Belleville, France, September offers a captivating blend of mild temperatures and refreshing autumnal weather. With a maximum of 22°C (72°F) and a cool average of 10°C (50°F), the month provides a perfect backdrop for outdoor activities. However, visitors should be prepared for the occasional chill, as nighttime temperatures can dip to a minimum of -10°C (15°F). Rainfall is common, with 94 mm (3.7 in) spread over 14 days, contributing to the region's vibrant landscapes. The humidity level, at 73%, enhances the crisp mountain air, making September an enchanting time to explore this picturesque alpine haven.
In September, Saint-Martin-de-Belleville experiences a delightful transition as the summer warmth gives way to the crispness of autumn. With minimum temperatures dipping to -10°C (15°F) and average highs reaching 22°C (72°F), the weather is pleasantly cool, making it an ideal time for outdoor adventures. This month marks a significant shift from the summer's highs, as the average temperature settles at 10°C (50°F), creating a refreshing atmosphere for hiking and exploring the stunning alpine landscapes. As September unfolds, the vibrant colors of fall begin to emerge, inviting both locals and visitors to enjoy the beauty of this enchanting destination before the chill of winter sets in.
In September, Saint-Martin-de-Belleville experiences a noticeable decline in precipitation, with an average of 94 mm (3.7 in) spread over 14 days. This marks a shift from the wetter summer months, particularly May, which records the highest rainfall of the year at 194 mm (7.6 in). As the season transitions into autumn, September is characterized by relatively mild weather and less rain, setting the stage for the approaching winter months. Interestingly, this reduction in precipitation lays the groundwork for the strikingly higher rainfall in December, which sees a dramatic increase to 261 mm (10.3 in), showcasing the region's dynamic weather patterns throughout the year.
September in Saint-Martin-de-Belleville brings a slight uptick in humidity, averaging around 73%. This marks a minor recovery from the summer's much drier months, where August dipped to 63%. The trend showcases a gradual transition into the more humid conditions of autumn, with humidity levels steadily climbing toward the higher averages typical in the following months, such as October and November, both hovering around 89% and 90% respectively. As the air cools, residents and visitors can expect a refreshing yet moist atmosphere, signaling the arrival of a picturesque fall season in this charming French alpine village.
As summer transitions into autumn in Saint-Martin-de-Belleville, September brings with it a moderate shift in UV exposure. With a UV Index of 7, categorized as high, outdoor enthusiasts should be mindful of their sun exposure, as burn time remains relatively brisk at just 25 minutes. This marks a decline from the peak levels of the summer months, where indices reached a maximum of 10 in both June and July. As fall approaches, the UV Index is on a gradual downward trend, signaling an opportunity to enjoy the beautiful alpine scenery while being cautious of the sun's rays. For more details on the UV Index throughout the year, visit Saint-Martin-de-Belleville UV Index.
UV Risk Categories
September in Saint-Martin-de-Belleville, France, enjoys a delightful 333 hours of sunshine, a reminder of summer's lingering warmth before autumn sets in. As the year unfolds, a remarkable trend emerges: the days gradually brighten from January's mere 173 hours, peaking in July with 423 hours, the sunniest month. Though September sees a slight dip from the peak of summer, it is still a vibrant month, with abundant sunshine that invites outdoor activities amidst breathtaking alpine scenery. As the light begins to wane in October, the contrast of warm days and crisp evenings makes September a particularly enchanting time in this charming mountain locale.
In Saint-Martin-de-Belleville, the likelihood of sunny weather fluctuates throughout the year, with September showing a 34% chance of sunshine. While this is a slight dip from the more promising summer months of July and August, which boast 35% and 44% chances respectively, it remains on par with the transitional months of May and June. Interestingly, as we move into the autumn months, the probability of sunshine begins to rise again in October, reaching 45%. This suggests that while September may bring a mix of sun and clouds, the allure of crisp fall days and clearer skies soon follows, making it a delightful time to visit as you can still experience pleasant weather in the beautiful alpine setting.
As summer fades and autumn approaches in Saint-Martin-de-Belleville, September offers a pleasant transition with 12 hours of daylight. This month marks a gradual decline from the sun-drenched days of July and August, which both bask in 15 hours of daylight. Notably, September is still bright enough to enjoy the lingering warmth of early fall, yet hints at the shorter days ahead in October, which features only 10 hours of daylight. The trend reflects the charming rhythm of the seasons, showcasing the picturesque landscapes of the French Alps bathed in softer autumn hues before the winter chill sets in.
As summer wanes and September arrives in Saint-Martin-de-Belleville, the wind whispers a gentle song, averaging 1.1 m/s (2 mph). This slight breeze mirrors the tranquility of the season, offering a pause before autumn's arrival. Comparatively, the wind speeds remain consistent with the months preceding it, reflecting a pattern of calmness throughout the summer. While October brings a slight uptick to 1.3 m/s (3 mph), September serves as a soft transition, evoking a serene atmosphere perfectly suited for leisurely alpine activities. As the weather begins to cool, this mild wind invites visitors to appreciate the enchanting landscapes, making it a lovely time to explore the beauty of the Alps.
The weather in Saint-Martin-de-Belleville 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-Martin-de-Belleville and find detailed weather information for every month.
September and January present strikingly different weather patterns. In September, temperatures range from a chilly -10°C (15°F) at their lowest, with an average of 10°C (50°F) and highs reaching 22°C (72°F). The month experiences around 94 mm (3.7 in) of precipitation over approximately 14 days, with a humidity level of 73%. In contrast, January sees much colder conditions, with minimum temperatures plummeting to -25°C (-13°F), an average of -6°C (21°F), and maximums only reaching 7°C (44°F). Precipitation increases significantly to 154 mm (6.0 in) across about 10 days, and the humidity rises to 91%. For a closer look at January's climate, check out Saint-Martin-de-Belleville weather in January.
September and February present contrasting weather conditions. In September, temperatures range from a minimum of -10°C (15°F) to a maximum of 22°C (72°F), with an average of 10°C (50°F). The month experiences 94 mm (3.7 in) of precipitation over 14 days, and humidity averages around 73%. In stark contrast, February is much colder, with temperatures dipping as low as -20°C (-5°F) and reaching a maximum of 12°C (53°F), averaging -2°C (28°F). Precipitation increases slightly to 120 mm (4.7 in) over 12 days, accompanied by higher humidity levels at 87%. For a detailed overview of February weather in this region, visit Saint-Martin-de-Belleville weather in February.
In September, the weather is generally milder, with average temperatures ranging from a low of -10°C (15°F) to a high of 22°C (72°F). The month experiences about 94 mm (3.7 in) of precipitation spread over 14 days, accompanied by a humidity level of 73%. In contrast, March presents a much colder climate, with temperatures dipping as low as -22°C (-7°F) and peaking at 14°C (58°F). This month sees increased precipitation, totaling 158 mm (6.2 in) over 15 days, and higher humidity at 84%. For more details on March weather, you can visit Saint-Martin-de-Belleville weather in March.
When comparing the weather in September and April, notable differences emerge in temperature and conditions. September showcases milder temperatures, with a minimum of -10°C (15°F) and an average of 10°C (50°F), reaching a pleasant maximum of 22°C (72°F). In contrast, April experiences cooler weather, featuring a lower minimum of -14°C (8°F) and an average of just 3°C (38°F), peaking at a maximum of 17°C (63°F). Precipitation levels are relatively close, with September receiving 94 mm (3.7 in) over 14 days, while April has slightly less at 83 mm (3.3 in) spread across 12 days. Both months have high humidity levels, but April is slightly more humid at 83%, compared to September's 73%. For more details, check out Saint-Martin-de-Belleville weather in April.
September and May exhibit notable differences in weather conditions. September typically presents a milder climate with average temperatures around 10°C (50°F) and maximums reaching up to 22°C (72°F), making it a relatively pleasant month. In contrast, May sees slightly cooler average temperatures of 7°C (45°F), with maximums peaking at 23°C (74°F). Precipitation is more pronounced in May, totaling 194 mm (7.6 in) over 21 days, whereas September receives 94 mm (3.7 in) over 14 days, suggesting May is wetter. Additionally, humidity levels are marginally higher in May at 78% compared to September's 73%. For a more detailed comparison, you can check Saint-Martin-de-Belleville weather in May.
In comparing the weather between September and June, we can see notable differences in temperature and precipitation patterns. September experiences a wider temperature range, with minimums dipping to -10°C (15°F) and maximums reaching 22°C (72°F) for an average of 10°C (50°F). In contrast, June has milder temperatures, with minimums at -1°C (30°F) and maximums peaking at 27°C (81°F), averaging 12°C (54°F). Additionally, June tends to be wetter, receiving 161 mm (6.3 in) of precipitation over 19 days, compared to September's 94 mm (3.7 in) over 14 days. Both months have similar humidity levels, with September at 73% and June slightly higher at 75%. For more detailed weather insights, visit Saint-Martin-de-Belleville weather in June.
In comparing the weather of September and July, September tends to be cooler overall, with average temperatures ranging from a chilly minimum of -10°C (15°F) to a mild maximum of 22°C (72°F), while July boasts warmer conditions with a minimum of 3°C (37°F) and a maximum of 28°C (83°F). Additionally, both months experience significant rainfall, with July receiving 124 mm (4.9 in) over 15 days and September slightly less at 94 mm (3.7 in) over 14 days. Humidity levels are comparable, as September has a humidity of 73% and July at 72%. For those interested in the specifics, you can find more details about the weather trends in July at Saint-Martin-de-Belleville weather in July.
September weather shows a notable cooling compared to August, with average temperatures dropping from 14°C (57°F) to 10°C (50°F) and maximum temperatures declining from 26°C (78°F) to 22°C (72°F). Notably, September features a lower humidity level at 73% compared to 63% in August, which can make the cooler temperatures feel crisper. Precipitation also decreases slightly from 119 mm (4.7 in) across 15 days in August to 94 mm (3.7 in) over 14 days in September. For further details on August conditions, you can check the following link: Saint-Martin-de-Belleville weather in August.
September and October exhibit noticeable differences in weather patterns. September boasts warmer temperatures with a minimum of -10°C (15°F), an average of 10°C (50°F), and a maximum of 22°C (72°F). In contrast, October sees slightly milder temperatures with minimums of -8°C (17°F), an average of 6°C (43°F), and maximums reaching 18°C (66°F). Precipitation also increases in October, totaling 115 mm (4.5 in) over 12 days compared to September's 94 mm (3.7 in) across 14 days. Additionally, October experiences higher humidity levels at 89%, compared to September's 73%. For more detailed insights, check out Saint-Martin-de-Belleville weather in October.
In September, the weather is generally milder, with average temperatures around 10°C (50°F) and maximums reaching up to 22°C (72°F). This month typically experiences 94 mm (3.7 in) of precipitation over 14 days, while humidity averages around 73%. In contrast, November sees a significant drop in temperatures, with an average of 0°C (32°F) and maximums capping at 15°C (59°F). Precipitation increases to 115 mm (4.5 in) over 13 days, and humidity rises to a notable 90%. For more detailed information, you can view the Saint-Martin-de-Belleville weather in November.
September and December present contrasting weather patterns, reflecting the shift from early autumn to deep winter. In September, temperatures start at a comfortable minimum of -10°C (15°F), averaging around 10°C (50°F) and peaking at 22°C (72°F). The month experiences moderate rainfall, totaling 94 mm (3.7 in) over approximately 14 days, with humidity levels at 73%.
In stark contrast, December plunges into a harsher climate, with minimum temperatures reaching -19°C (-2°F) and an average of -5°C (24°F), while the maximum barely rises to 7°C (46°F). Precipitation increases significantly to 261 mm (10.3 in) over 17 days, accompanied by higher humidity at 90%. This shift illustrates the transition to winter's chill. For more detailed insights into the December weather, check Saint-Martin-de-Belleville weather in December.
As the summer warmth gently fades in Saint-Martin-de-Belleville, September ushers in a refreshing change, marked by cooler temperatures and increased precipitation. While daytime highs can still reach a pleasant 22°C, the brisk evenings remind visitors that autumn is just around the corner. With an average temperature of 10°C and a notable contrast compared to the heat of summer, this month sees a rise in humidity levels, which, combined with 14 days of rainfall, creates an invigorating atmosphere ideal for both outdoor activities and cozy retreats. This transitional period invites exploration of the natural beauty surrounding the village, making it a captivating time for travelers. For a deeper dive into the intricate weather patterns of the region, visit Saint-Martin-de-Belleville Climate.