Last updated: February 26, 2025
September in Fontainebleau, France, presents a delightful tapestry of weather characteristics, with temperatures typically ranging from a refreshing 5°C (41°F) at night to a warm 35°C (95°F) during the day. The average temperature hovers around a mild 17°C (63°F), inviting outdoor activities amidst the scenic beauty of the region. Visitors can expect about 54 mm (2.1 in) of rainfall spread over 8 days, contributing to the lush greenery surrounding the iconic forest. Coupled with a relatively high humidity of 81%, the month showcases the enchanting transition from summer to autumn, making September a fascinating time to explore Fontainebleau’s rich natural and cultural heritage.
September in Fontainebleau, France, marks a transition as summer fades into autumn, reflected in its comfortable temperatures. With minimums around 5°C (41°F) and averages peaking at 17°C (63°F), the month provides a delightful escape from the heat of the preceding summer. Daytime temperatures can soar to a maximum of 35°C (95°F), offering plenty of opportunities for enjoying the outdoors before the chill of October sets in. This month showcases a gentle decline in warmth while still retaining a hint of summer's vibrancy, making it an ideal time for visitors to explore the beautiful landscapes of Fontainebleau.
In September, Fontainebleau experiences a moderate precipitation of 54 mm (2.1 in), spread across approximately 8 days. This marks the transition from summer's drier months to the wetter autumn season, as evidenced by the increase in rainfall compared to the preceding months of July and August, which recorded 49 mm and 52 mm, respectively. Notably, September's rainfall is still relatively low compared to the heavier showers of October and December, which bring 82 mm and 108 mm. This trend highlights the gradual buildup of moisture in the atmosphere, preparing the region for the more intense precipitation that lies ahead as the year progresses.
As the summer heat fades, September in Fontainebleau brings a slight increase in humidity to 81%. This marks a subtle shift from the drier summer months, where August enjoyed a relatively comfortable 76% humidity. Throughout the year, humidity levels in Fontainebleau display a clear trend: they start high in the winter months, peaking at a steamy 93% in December, and gradually decrease until hitting their lowest point in August. However, as autumn approaches, there’s a gentle rebound in humidity, hinting at the wetter months ahead, with October expected to climb back to 88%. Such fluctuations not only signal changing seasons but also influence the region's lush landscapes, making September a month of transition and renewed vitality.
As summer gives way to autumn in September, Fontainebleau experiences a notable drop in the UV Index, settling at a high level of 6. This marks a transition from the very high indexes recorded in the peak summer months of July and August, where burn times were as short as 15 minutes. Despite this decrease, the need for sun protection remains, with a burn time of approximately 25 minutes. The UV Index will continue to fluctuate in the coming months, reflecting the changing seasons, where it drops further to a moderate 4 in October. For detailed insights and to keep track of solar exposure in this beautiful region, visit Fontainebleau UV Index.
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September in Fontainebleau is a delightful transition between the vibrant summer and the crisp onset of autumn, boasting 324 hours of sunshine. Following the peak summer months, where July shines the brightest with 406 hours of sun, September holds onto the warmth, albeit with diminishing light compared to the height of summer. As days start to shorten, the sun still generously bathes the rolling landscapes, making it a perfect time for outdoor exploration. This pattern of radiant days aligns with the gradual decrease observed from August's 384 hours to October's 265 hours, signaling nature’s leisurely shift towards the cooler, quieter months ahead. The lingering light of September invites both locals and visitors to bask in the remnants of summer's glow before the gentle embrace of fall takes over.
In Fontainebleau, France, September marks a transition in the seasonal weather, where the chances of sunny days begin to rise after the summer months. With a 43% likelihood of sunshine, this month offers a delightful balance of warmth and clearer skies, slightly higher than the dreary days of August (38%) and just a notch below October (44%), suggesting that summer's spirit lingers. As the year progresses, the trend shows that while winter brings a significant drop in sunny weather, the spring months — particularly April (58%) — present the most promising sunny days. This fluctuation highlights September as an ideal time for outdoor activities, basking in the mild temperatures and increasing sunlight before autumn fully sets in.
As summer gives way to autumn in Fontainebleau, September marks a noticeable shift in daylight hours. With the sun gracing the skies for approximately 12 hours each day, this month signals the transition from the long, sun-drenched days of June and July—which boast a peak of 16 hours—to the more moderate light of autumn. Following a gradual decline that begins in August, the daylight duration starts to dwindle, echoing the natural rhythm of the seasons. This trend continues into October, where the daylight dips further to 10 hours. Enjoying the tail end of summer's bright days, September serves as a gentle reminder of the approaching cooler months while still offering ample time to bask in the beautiful surroundings.
As summer gives way to autumn in Fontainebleau, September ushers in a gentle shift in the winds, with average speeds dropping to 2.7 m/s (6 mph). This seasonal transition reflects a broader trend throughout the year, where springtime breezes peak in May at 4.3 m/s (10 mph) before tapering off during the warmer months of June, July, and August, which hover around 3.4 m/s (8 mph). The cooling September air, with its quieter winds, invites strollers to enjoy the stunning foliage and serene beauty of the forest. As the month progresses, wind speeds begin to rise again, hinting at the brisk breezes that will accompany the upcoming fall scenery in Fontainebleau.
The weather in Fontainebleau 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 Fontainebleau and find detailed weather information for every month.
When comparing the weather in September and January, it's clear that these months present starkly different climates. September typically enjoys milder temperatures, ranging from a minimum of 5°C (41°F) to an average of 17°C (63°F) and peaking at 35°C (95°F), making it feel warm and inviting. Precipitation in September totals around 54 mm (2.1 in) over approximately 8 days, and the humidity sits at 81%.
Conversely, January brings a chillier atmosphere, with temperatures dropping significantly to a minimum of -8°C (18°F) and averaging 4°C (40°F), reaching a maximum of only 15°C (59°F). This cooler month sees slightly more precipitation at 64 mm (2.5 in) across around 11 days, with humidity slightly higher at 91%. For a more detailed understanding of January weather, you can visit Fontainebleau weather in January.
September and February present starkly contrasting weather patterns. In September, temperatures vary significantly, ranging from a cool 5°C (41°F) at night to a warm 35°C (95°F) during the day, with an average of 17°C (63°F). The month experiences plenty of sunshine, alongside an average of 54 mm (2.1 in) of precipitation over about 8 rainy days and a humidity level of 81%.
In contrast, February is much colder, with temperatures dropping to a minimum of -11°C (12°F) and peaking at a maximum of 21°C (69°F), which results in a much lower average temperature of 6°C (43°F). This month sees slightly higher precipitation at 67 mm (2.6 in) spread over approximately 13 days, coupled with a humidity that rises to 89%. To explore the specific weather trends for February, you can check Fontainebleau weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 35°C (95°F), with an average of 17°C (63°F). The month sees about 54 mm (2.1 in) of precipitation over 8 days and humidity levels around 81%. Conversely, March experiences much cooler temperatures, with a minimum of -9°C (16°F), an average of 8°C (47°F), and a maximum reaching 24°C (76°F). It is slightly wetter, accumulating 72 mm (2.8 in) of precipitation across 13 days, alongside higher humidity at 86%. For more details on the weather during this month, you can check Fontainebleau weather in March.
When comparing the weather in September to that in April, notable differences emerge. September typically enjoys a warmer climate, with average temperatures reaching 17°C (63°F) and a maximum of 35°C (95°F), while April's average is cooler at 11°C (53°F), peaking at 28°C (83°F). Additionally, September experiences more humidity at 81% compared to April's 84%, although April has lower overall precipitation, with 31 mm (1.2 in) over just 6 days, versus September's 54 mm (2.1 in) over 8 days. For a closer look at what to expect, visit Fontainebleau weather in April.
When comparing the weather in September and May, it becomes clear that both months exhibit moderate temperatures and significant humidity. September tends to be warmer, with average temperatures reaching 17°C (63°F) and a maximum of 35°C (95°F), whereas May has a slightly cooler average of 15°C (59°F) and peaks at 31°C (88°F). Precipitation is slightly higher in May, totaling 71 mm (2.8 in) over about 12 days, compared to September's 54 mm (2.1 in) over 8 days. Additionally, humidity levels remain consistently high in both months, with September at 81% and May at 82%. For more detailed insights into May weather, you can refer to Fontainebleau weather in May.
September and June offer interesting contrasts in weather patterns. In June, temperatures typically range from a minimum of 7°C (45°F) to a maximum of 36°C (98°F), with an average temperature of 19°C (67°F), slightly warmer than September’s low of 5°C (41°F) and average of 17°C (63°F). Both months experience significant humidity, with June at 82% and September at 81%. Precipitation is also higher in June, accumulating 62 mm (2.4 in) over 11 days compared to September's 54 mm (2.1 in) over 8 days. For more detailed insights, check out the specific weather patterns at Fontainebleau weather in June.
In comparing the weather between July and September, we see notable differences in temperature and precipitation patterns. July tends to be warmer, with average temperatures around 21°C (70°F) and a maximum reaching up to 42°C (107°F), whereas September sees a decline with an average of 17°C (63°F) and maximums of 35°C (95°F). Precipitation is slightly higher in September at 54 mm (2.1 in) over 8 days, compared to July's 49 mm (1.9 in) over 6 days. Humidity levels are similar, with July at 80% and September slightly higher at 81%. For a more detailed look at July's climate, you can check out Fontainebleau weather in July.
In comparing the weather between August and September, we see a notable shift in temperatures and overall conditions. September experiences a cooler range with minimum temperatures dropping to 5°C (41°F) and an average of 17°C (63°F), compared to August's slightly warmer average of 20°C (69°F) and minimum of 6°C (44°F). The maximum temperatures in September reach 35°C (95°F), while August can peak at a hotter 38°C (101°F). Precipitation is quite similar, with September recording 54 mm (2.1 in) over 8 days, compared to August's 52 mm (2.0 in) over 10 days. Additionally, humidity levels are higher in September at 81%, compared to August's 76%. For a detailed view of the August weather, you can visit Fontainebleau weather in August.
In September, the weather tends to be warmer, with average temperatures around 17°C (63°F) and maximum highs reaching up to 35°C (95°F). The month experiences relatively moderate precipitation of 54 mm (2.1 in) over 8 days, with humidity at 81%. In contrast, October brings cooler temperatures, with averages dropping to 13°C (55°F) and maximums peaking at 26°C (79°F). This month sees increased precipitation, totaling 82 mm (3.2 in) over 12 days, coupled with higher humidity at 88%. For more details on the specific weather conditions in October, visit Fontainebleau weather in October.
In September, the weather is characterized by warmer temperatures, with an average of 17°C (63°F) and highs reaching up to 35°C (95°F), while experiencing relatively lower humidity at 81%. In contrast, November sees a significant drop in temperatures, where the average is only 8°C (46°F) and the maximum temperature rarely exceeds 20°C (69°F). The month also brings increased precipitation, totaling 66 mm (2.6 in) over about 12 days, compared to September’s 54 mm (2.1 in) across 8 days. Additionally, November is marked by higher humidity levels at 92%. For more detailed information on November weather conditions, you can visit Fontainebleau weather in November.
In September, the weather is generally warmer with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 35°C (95°F) and an average of 17°C (63°F). The month sees relatively low precipitation, averaging 54 mm (2.1 in) over about 8 days, but humidity remains high at 81%. In contrast, December brings a notable chill, with temperatures dipping to a minimum of -4°C (26°F) and an average of just 6°C (43°F). The maximum temperature is milder at 15°C (60°F), yet the month is notably wetter, experiencing 108 mm (4.2 in) of rain over 17 days and a higher humidity level at 93%. For more details on the weather during this month, check out Fontainebleau weather in December.
As September unfolds in Fontainebleau, the weather presents a delightful transition from the warmth of summer to the cooler tones of autumn. With a maximum temperature reaching up to 35°C (95°F), September can still feel quite summery, yet the average temperature settles comfortably around 17°C (63°F). Rainfall makes its presence known, with approximately 54 mm (2.1 in) over about 8 days, hinting at the approaching fall. The humidity level rises to around 81%, lending a slight heaviness to the air, particularly during warmer days. This blend of warm afternoons and brisk evenings sets September apart from the preceding months, providing a unique charm to Fontainebleau's climate. For a deeper dive into the weather patterns throughout the year, check out Fontainebleau Climate.