Last updated: February 26, 2025
In September, Vernon, France offers a pleasant transition into autumn, characterized by a maximum temperature reaching 33°C (91°F) and an average of 16°C (61°F). The crisp mornings can dip as low as 4°C (39°F), providing a refreshing start to the day. While the month sees 40 mm (1.6 in) of precipitation spread over 9 days, the humidity level hovers around a comfortable 76%, creating a lovely atmosphere for outdoor activities. Visitors can enjoy the mild climate, perfect for exploring the scenic beauty of this charming town.
In September, Vernon, France experiences a delightful transition to autumn, marked by mild temperatures that make it a charming time to visit. With minimums settling around 4°C (39°F) and averages peaking at 16°C (61°F), the weather is pleasantly cool after the sweltering summer months. The maximum temperature can reach up to 33°C (91°F), still holding onto summer’s warmth while gently hinting at the upcoming chill of autumn. As days grow shorter, the shifts in temperature create a dynamic landscape, perfect for enjoying outdoor activities amidst the changing foliage.
In September, Vernon experiences a moderate level of precipitation, with 40 mm (1.6 inches) of rain falling over approximately 9 days. This signals the transition from the warmer summer months to the cooler autumn season. The rainfall is slightly below that of the preceding months, such as May and June, which typically see higher averages of 80 mm and 83 mm respectively. As the month unfolds, the weather begins to shift, with October poised to bring a noticeable increase in rainfall to 76 mm (3.0 inches) over 12 days. This trend highlights a gradual return to the wetter months that characterize the later part of the year in Vernon, creating a vibrant backdrop for the changing foliage and the onset of the fall season.
In Vernon, France, the humidity experience throughout the year reveals a fascinating trend, especially as we shift to September. After a gradual decline from 91% in January to a comfortable 68% in August, September marks a slight uptick to 76%. This increase suggests the onset of cooler temperatures and potentially more precipitation as autumn approaches. Interestingly, the transition from summer to fall brings humidity levels back up, characterizing September as a bridge between the dry warmth of summer and the more humid months ahead, notably October, which soars back to 88%. This rhythmic fluctuation highlights the region's climate variability, making each season distinct and inviting for residents and visitors alike.
As September unfolds in Vernon, France, the UV Index maintains a high level of 6, accompanied by a burn time of 25 minutes. This marks a noticeable decline from the peak summer months, where levels reached 9 in June and 8 in July and August, emphasizing the seasonal transition. While sun safety remains crucial, the slightly lower UV Index of September allows for a more extended exposure compared to the intense summer sun. It's essential to stay informed and enjoy the beautiful autumn days while being mindful of UV radiation. For more information, check out the detailed Vernon UV Index.
UV Risk Categories
September in Vernon, France, offers a delightful transition into autumn with 320 hours of sunshine, making it one of the highlights of the year. As summer fades, the sun still shines brightly, showcasing a gradual decline from the peak summer months of June and July, both boasting 407 hours. This month acts as a bridge, retaining a rich tapestry of golden days that are reminiscent of the vibrant energy experienced in May and June. The sunshine hours in September reflect a strong start to the fall season, inviting both locals and visitors to enjoy the lingering warmth before the cooler months set in. While the days may grow shorter, the lush landscapes and crisp air remind us that there is still plenty of natural beauty to relish in this charming town.
As September rolls into Vernon, France, the chances of enjoying sunny weather take on a more promising hue, boasting a 41% likelihood of sunshine. This marks a notable increase compared to the early months of the year, with February's modest 27% and the gradual climb through spring, peaking at 57% in April. While summer months like July and August hover around 36%, September presents a delightful opportunity for outdoor activities, reflecting a seasonal transition where the warmth still lingers but begins to grace Vernon's landscapes with gentle autumn hues. The trend suggests that as the days grow shorter, the prospects for sun remain comparatively bright, making September a charming time to revel in the beauty of this picturesque region.
As summer gives way to fall in Vernon, France, September sees a notable transition in daylight hours. With 12 hours of daylight, the month offers a gentle tapering from the long, sun-drenched days of June and July, which boast an impressive 16 hours. This gradual decrease signals the approach of autumn, yet it's still significantly brighter than the winter months ahead, where daylight shrinks to just 8 hours in December. September stands out as a month of balance, providing ample light for outdoor activities and a final taste of summer before the days grow shorter. This trend reflects not only the natural rhythm of the seasons but also invites a sense of nostalgia as the vibrant hues of fall begin to emerge.
As September wraps up the summer season in Vernon, France, the average wind speed gently tapers to 2.8 m/s (6 mph), marking a noticeable dip from the more vigorous summer breezes. This decline contrasts sharply with the earlier months, where April enjoyed a brisker pace of 3.4 m/s (8 mph) and May peaked at a steady 4.3 m/s (10 mph). Following the sultry August, which also recorded an average of 3.3 m/s (7 mph), September brings a tranquil shift in the climate, heralding the cooler months ahead. With October's wind forecast picking up slightly to 3.8 m/s (9 mph), it’s clear that Vernon’s winds are in flux, oscillating with the seasons and inviting a refreshing change.
The weather in Vernon 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 Vernon and find detailed weather information for every month.
In September, the weather is generally warmer, with temperatures ranging from a cool 4°C (39°F) to a hot 33°C (91°F) and an average of 16°C (61°F). It experiences relatively lower precipitation of 40 mm (1.6 in) over about 9 days, paired with a humidity level of 76%. In contrast, January brings a significant drop in temperatures, with a minimum of -7°C (19°F) and a maximum of 15°C (59°F), averaging only 5°C (41°F). The month also sees slightly higher precipitation at 51 mm (2.0 in) across 10 days, accompanied by a higher humidity level of 91%. For more details on the weather in January, you can check Vernon weather in January.
September and February present contrasting weather conditions, showcasing a significant shift between the two months. In September, temperatures range from a cool 4°C (39°F) at night to a warm average of 16°C (61°F) during the day, peaking at 33°C (91°F). This month experiences lower precipitation levels, with about 40 mm (1.6 in) falling over 9 days, and a comfortable humidity of 76%. In stark contrast, February features much colder temperatures, with minimums plunging to -7°C (20°F) and average daytime highs at 6°C (43°F), reaching a maximum of 19°C (67°F). Precipitation is higher, totaling 64 mm (2.5 in) over 12 days, and humidity is notably elevated at 89%. For more detailed weather insights, you can visit Vernon weather in February.
In September, the weather is generally warm with temperatures ranging from a cool 4°C (39°F) at night to a high of 33°C (91°F) during the day, resulting in an average of 16°C (61°F). The month sees moderate precipitation of 40 mm (1.6 in) spread over about 9 days, with a humidity level of 76%. In contrast, March presents a brisker climate, with temperatures dipping to a minimum of -8°C (17°F) and peaking at 24°C (75°F), averaging around 8°C (47°F). This month experiences higher precipitation at 74 mm (2.9 in) over roughly 14 days, coupled with increased humidity at 85%. For more detailed information, check out Vernon weather in March.
September and April present contrasting weather patterns, showcasing the transition from summer to autumn in September, and the arrival of spring in April. In September, temperatures can soar to a maximum of 33°C (91°F), with an average of 16°C (61°F) and a minimum of 4°C (39°F), indicating the lingering warmth of summer. Humidity sits at a moderate 76%, accompanied by 40 mm (1.6 in) of precipitation spread over 9 days. Conversely, April experiences cooler conditions, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 26°C (79°F), averaging at 11°C (51°F). The month sees slightly less rainfall, totaling 36 mm (1.4 in) over 7 days, and an increased humidity of 84%. For a detailed look at the weather conditions, you can check Vernon weather in April.
In September, temperatures range from a cool 4°C (39°F) at night to a warm 33°C (91°F) during the day, averaging around 16°C (61°F). The month sees relatively low precipitation at 40 mm (1.6 in) over about 9 days, with a humidity level of 76%. In contrast, May has a cooler temperature range, with minimums dropping to 0°C (33°F) and maximums peaking at 28°C (83°F), averaging 14°C (57°F). Rainfall is more prevalent in May, totaling 80 mm (3.1 in) across approximately 13 days, and the humidity is slightly higher at 82%. For a closer look at weather trends and details, refer to this link: Vernon weather in May.
September and June present distinct weather patterns, with September experiencing a wider temperature range, featuring minimums of 4°C (39°F) and maximums of 33°C (91°F), while June's temperatures are slightly milder, ranging from a minimum of 6°C (43°F) to a maximum of 35°C (95°F). June is characterized by higher precipitation levels, averaging 83 mm (3.3 in) over 12 days compared to September's 40 mm (1.6 in) over 9 days, resulting in a more humid environment, with June's humidity at 80% versus September's 76%. For a more detailed look at the weather conditions during June, you can check Vernon weather in June.
In comparing the weather of September and July, we see a notable contrast in temperature and overall climate conditions. September experiences a wider temperature range, with minimums dipping to 4°C (39°F) and maximums reaching up to 33°C (91°F), while July is warmer, featuring minimums of 8°C (46°F) and maximums soaring to 40°C (104°F). Both months have similar precipitation levels, with September receiving 40 mm (1.6 in) of rain over 9 days and July slightly more at 44 mm (1.7 in) over 8 days. However, September tends to feel a bit more humid, averaging 76% compared to July's 73%. For those interested in more specifics about July weather, you can visit Vernon weather in July.
In September, temperatures show a notable shift with a minimum of 4°C (39°F), an average of 16°C (61°F), and a maximum reaching 33°C (91°F), compared to August, which features slightly warmer temperatures with a minimum of 6°C (43°F), an average of 19°C (67°F), and a peak of 37°C (98°F). While both months experience a fair amount of precipitation, September receives 40 mm (1.6 in) over 9 days, slightly less than August's 60 mm (2.3 in) across 10 days. Additionally, September's humidity is higher at 76%, compared to August's 68%, suggesting a more humid and slightly cooler transition into fall. For a detailed overview of August weather, you can visit Vernon weather in August.
September weather is characterized by warmer temperatures, with a minimum of 4°C (39°F) and a maximum of 33°C (91°F), resulting in an average temperature of 16°C (61°F). The month experiences less precipitation, totaling 40 mm (1.6 in) across 9 days, and a humidity level of 76%. In contrast, October sees a notable drop in temperature, with a minimum of 2°C (35°F) and a maximum of 25°C (78°F), leading to a cooler average of 12°C (55°F). This month also experiences increased precipitation at 76 mm (3.0 in) over 12 days, coupled with higher humidity at 88%. For more specific insights on October's weather patterns, you can visit Vernon weather in October.
September and November present quite contrasting weather conditions. In September, temperatures can reach a maximum of 33°C (91°F), with an average of 16°C (61°F), making it a relatively warm month. In contrast, November cools down significantly, with maximum temperatures peaking at 18°C (65°F) and averaging only 8°C (46°F). Additionally, November experiences higher humidity levels at 92% compared to September’s 76% and also sees an increase in precipitation, totaling 66 mm (2.6 in) over 12 days. For more detailed information, you can check out this link: Vernon weather in November.
September and December present contrasting weather characteristics. September typically enjoys a wider temperature range with a minimum of 4°C (39°F) and a comfortable average of 16°C (61°F), peaking at a warm 33°C (91°F). The month also sees about 40 mm (1.6 in) of precipitation over 9 days, and the humidity averages 76%. In stark contrast, December experiences much colder temperatures, with lows dropping to -3°C (26°F) and an average of just 6°C (43°F), reaching a maximum of 15°C (59°F). The precipitation increases significantly to 97 mm (3.8 in), spread over 18 days, and the humidity level rises to 93%. For a more detailed look at weather specifics, you can explore Vernon weather in December.
September in Vernon marks a distinct transition from the warmth of summer to the cooler embrace of autumn. With average temperatures settling around a comfortable 16°C, the month offers a refreshing balance just before the chill sets in. Unlike the hotter July and August, September’s maximum temperature peaks at 33°C, while evenings cool down to a brisk 4°C, providing an inviting respite. Although this month sees about nine days of precipitation bringing a total of 40 mm, the lush humidity of 76% adds a unique texture to the air. This delightful blend of warmth and freshness, combined with mild rainfall, makes September an ideal time to explore Vernon’s scenic beauty. For a deeper insight into the climate nuances of Vernon, be sure to visit Vernon Climate.