Last updated: August 27, 2025
September in 's-Hertogenbosch, Netherlands, showcases a dynamic blend of transitioning temperatures and a significant rainfall pattern. With maximums soaring to 32°C (90°F) and average temperatures around 15°C (60°F), the month offers warm days, but the chill can set in as lows reach 3°C (38°F). Precipitation is notable, accumulating to 63 mm (2.5 in) over 10 days, contributing to a humidity level of 81% that enhances the feeling of warmth. This variability makes September a month of diverse weather experiences, ideal for both outdoor enthusiasts and those seeking the cozy charm of early autumn.
As September rolls into 's-Hertogenbosch, the city experiences a gentle transition from summer to autumn. With minimum temperatures averaging 3°C (38°F) and average highs reaching around 32°C (90°F), this month strikes a balance between warmth and the approaching chill of fall. The days are still warm, inviting outdoor exploration, while the evenings begin to cool, hinting at the seasonal changes ahead. Overall, September’s milder climate, with an average temperature of 15°C (60°F), creates an inviting atmosphere for locals and visitors alike, marking a beautiful farewell to summer.
In September, 's-Hertogenbosch experiences a moderate precipitation level of 63 mm (2.5 in), making it a slightly wetter month compared to the drier spells of April and May. This uptick in rainfall is accompanied by around 10 days of precipitation, setting the stage for the fall season as it transitions from the summer's higher totals in July and August. While October follows with a significant increase to 86 mm (3.4 in), September serves as a gentle precursor, maintaining a balance between the lush greenery of late summer and the impending chill of autumn. Overall, the month enjoys a light but consistent drizzle, establishing a rhythm that gently prepares the region for the wetter months ahead.
As September unfolds in 's-Hertogenbosch, Netherlands, the city experiences a notable shift in humidity, with levels rising to 81%. This increase marks a transition from the drier summer months of July and August, where humidity dipped to 72% and 71% respectively. Such a rise in moisture levels as autumn approaches indicates the city's gradual return to a damp climate, reminiscent of the early months of the year, when humidity peaks at 91% in January and November. These trends highlight a characteristic ebb and flow in atmospheric moisture, providing a fresh reminder of the vibrant seasonal changes that define this charming Dutch locale.
As September rolls into 's-Hertogenbosch, the UV Index settles at 5, reflecting a moderate exposure category. This trend signifies a shift from the high indices of summer, encouraging residents and visitors alike to enjoy outdoor activities while remaining mindful of sun safety. With a burn time of 30 minutes, it’s a perfect balance, allowing for leisurely afternoons in the sun without compromising skin health. The gradual decrease in UV levels from the peak summer months highlights the seasonal transition, underscoring the importance of adapting sun protection measures. For more insights and details on UV exposure in the area, check out the 's-Hertogenbosch UV Index.
UV Risk Categories
September in 's-Hertogenbosch offers a delightful transition into autumn, boasting 323 hours of sunshine. As summer fades away, this month retains a commendable amount of sun, trailing just behind the peak summer months of July and June. The light shifts subtly, as September illuminates the landscape with a warm glow before the crispness of October sets in. This trend showcases a gradual decline from the summer highs, yet it still provides ample opportunity for outdoor activities and enjoying the picturesque canals and parks. With a strong foundation in the earlier months, September’s sunshine creates a beautiful backdrop for locals and visitors alike, merging the warmth of summer with the enchanting beginnings of fall.
In September, 's-Hertogenbosch experiences a 31% chance of sunny weather, a figure that places it comfortably in the mid-range compared to the rest of the year. Following the summer months, which boast higher percentages of sunshine, September sees a slight decline in sunny days, reflecting the seasonal transition into autumn. Notably, this chance remains relatively stable when compared to the preceding months of July and August, which hover around 32% to 33%. However, as the year progresses into the cooler fall months of October and November, the likelihood of sunshine drops significantly. Thus, while September may not guarantee bright days, it still offers opportunities for pleasant weather before the more overcast days emerge.
As summer fades and autumn approaches in 's-Hertogenbosch, September presents a gentle transition with an average daylight duration of 12 hours. This month marks a noticeable decline from the sun-drenched days of July and June, which offer a generous 16 hours of daylight. The gradual shortening of days, beginning after the peak summer months, continues to reflect the shifting season—where August still holds onto 14 hours of sunlight, but by the time September arrives, there’s a clear move towards the shorter days typical of fall. This trend foreshadows the upcoming months of October and November, where daylight dips to 10 and 8 hours, respectively, inviting the cozy embrace of autumn evenings.
In September, the winds in 's-Hertogenbosch soften slightly, with an average speed of 3.0 m/s (7 mph), making it the calmest month of the year. This gentle breeze follows a trend of decreasing wind speeds from the summer months, where July and August recorded average speeds of 3.3 and 3.6 m/s (7 and 8 mph), respectively. As autumn approaches, the transition is evident; September marks the tail end of the warmer season before the winds pick up again in October. Interestingly, earlier months in the year, particularly January and February, boast higher speeds at 4.2 m/s (9 mph), indicating a dynamic climate that shifts with the seasons. As nature begins to wind down for winter, the milder September winds create a serene atmosphere in this charming Dutch city, inviting residents and visitors alike to enjoy the crisp, fresh air.
Weather in 's-Hertogenbosch varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in 's-Hertogenbosch, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures in 's-Hertogenbosch range from a mild minimum of 3°C (38°F) to a warm maximum of 32°C (90°F), with an average of 15°C (60°F). The month experiences a moderate level of precipitation totaling 63 mm (2.5 in) over about 10 days, accompanied by humidity levels around 81%. In contrast, January brings colder conditions, with temperatures dipping to a minimum of -8°C (19°F) and only peaking at 15°C (59°F), resulting in a colder average of 4°C (40°F). Precipitation in January is slightly lower, totaling 61 mm (2.4 in) over 12 days, but humidity rises to 91%, creating a notably chilly atmosphere. For a deeper look at the January conditions, you can refer to the details of 's-Hertogenbosch weather in January.
September and February present significantly contrasting weather conditions. In September, temperatures range from a mild 3°C (38°F) at night to a warm 32°C (90°F) during the day, with an average of 15°C (60°F). This month also experiences about 63 mm (2.5 in) of rainfall over approximately 10 days, combined with a humidity level of 81%. On the other hand, February is much colder, with temperatures dipping to a minimum of -11°C (12°F) and peaking at 18°C (66°F), averaging around 5°C (41°F). This month sees slightly higher precipitation at 70 mm (2.8 in) spread across 12 days and an increased humidity of 90%. For those interested in specific weather patterns, detailed information about 's-Hertogenbosch weather in February can be found through the link.
In September, the weather typically features a wide temperature range, with minimums around 3°C (38°F) and highs reaching up to 32°C (90°F), resulting in an average temperature of 15°C (60°F). The month sees around 63 mm (2.5 in) of precipitation over approximately 10 days, with an overall humidity level of 81%. In contrast, March experiences much cooler temperatures, with minimums dropping to -8°C (19°F) and maximums peaking at 22°C (72°F), leading to a lower average of 7°C (45°F). With 71 mm (2.8 in) of precipitation spread across about 15 days, the humidity is slightly higher at 87%. For more detailed information, you can check out 's-Hertogenbosch weather in March.
September and April present contrasting weather conditions. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 32°C (90°F), with an average of 15°C (60°F), while April sees cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 28°C (82°F), averaging 10°C (50°F). Precipitation is higher in September at 63 mm (2.5 inches) over 10 days, compared to April's 35 mm (1.4 inches) across 9 days. Humidity levels are similar, with September at 81% and April slightly higher at 84%. For specific details on April conditions, you can refer to 's-Hertogenbosch weather in April.
In comparing the weather between September and May, we find some intriguing similarities and differences. Both months experience a maximum temperature of 32°C (90°F), but September has a slightly higher average temperature of 15°C (60°F) compared to May's 14°C (57°F). Precipitation amounts are comparable, with September receiving 63 mm (2.5 in) over 10 days and May having 61 mm (2.4 in) over 13 days, indicating that May may feel a bit wetter overall. Additionally, September boasts a higher humidity level of 81%, while May maintains a lower humidity at 77%. For more detailed information, you can check out 's-Hertogenbosch weather in May.
When comparing the weather in September and June, it's clear that September offers a wider temperature range, with minimums dipping to 3°C (38°F) and maximums reaching up to 32°C (90°F). In contrast, June tends to be milder, featuring a minimum temperature of 8°C (47°F) and a maximum of 33°C (92°F). Precipitation levels are slightly higher in June at 70 mm (2.8 in) compared to September’s 63 mm (2.5 in), although both months experience rainfall on about 10 days. Notably, humidity is more pronounced in September at 81%, whereas June maintains a lower humidity level of 74%. For a detailed look at June weather, check out 's-Hertogenbosch weather in June.
In comparing the weather of September and July, September tends to be cooler with a minimum temperature of 3°C (38°F) compared to July’s warmer minimum of 8°C (46°F). The average temperature in September is 15°C (60°F), while July boasts a higher average of 19°C (66°F). Additionally, July can experience extreme heat, reaching a maximum of 39°C (103°F), whereas September's highest temperature peaks at 32°C (90°F). Both months show significant rainfall, with July receiving 76 mm (3.0 in) over 12 days and September seeing slightly less precipitation at 63 mm (2.5 in) over 10 days. Humidity levels are higher in September at 81%, compared to July’s 72%. For more detailed information, you can check 's-Hertogenbosch weather in July.
In comparison, September experiences cooler temperatures, with a minimum of 3°C (38°F) and an average of 15°C (60°F), while August has a noticeably warmer range with a minimum of 8°C (47°F) and an average of 19°C (66°F). Additionally, September's maximum temperature reaches 32°C (90°F), which is slightly lower than August's peak of 34°C (94°F). Precipitation is fairly high in both months, with September recording 63 mm (2.5 in) over 10 days and August totaling 77 mm (3.0 in) over 13 days. Interestingly, September exhibits a higher humidity level at 81% compared to August's 71%. For more specific information, you can check 's-Hertogenbosch weather in August.
In September, the weather features a wide temperature range, with minimums around 3°C (38°F) and maximums reaching up to 32°C (90°F), providing an average of 15°C (60°F). There is moderate rainfall, totaling 63 mm (2.5 in) over about 10 days, and humidity levels are relatively high at 81%. In contrast, October sees a slight drop in temperatures, with minimums around 2°C (36°F) and maximums peaking at 26°C (79°F), yielding an average of 12°C (54°F). Rainfall increases to 86 mm (3.4 in) spread over 13 days, accompanied by even higher humidity at 88%. For more details, check out 's-Hertogenbosch weather in October.
September and November present quite distinct weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 32°C (90°F), with an average of 15°C (60°F), creating a warm and generally pleasant atmosphere. The month sees about 63 mm (2.5 in) of precipitation over 10 days, while humidity sits at a relatively high 81%. In contrast, November experiences a cooler climate, with temperatures dropping to a minimum of -2°C (29°F) and reaching a maximum of 19°C (66°F), resulting in an average temperature of 7°C (46°F). With 53 mm (2.1 in) of precipitation over 12 days and humidity rising to 91%, November feels much chillier and wetter. For a detailed look at the weather in November, check out 's-Hertogenbosch weather in November.
In comparing the weather between September and December, it is clear that the two months have distinctively different climates. September experiences milder temperatures, ranging from a low of 3°C (38°F) to a warm average of 15°C (60°F), reaching highs of up to 32°C (90°F). This month also sees a relative decrease in precipitation, totaling 63 mm (2.5 in) over about 10 days, with humidity levels around 81%.
In contrast, December brings a significant drop in temperatures, with a minimum of -4°C (25°F), an average of 6°C (42°F), and a maximum of 15°C (59°F). Precipitation increases to 86 mm (3.4 in) spread over 16 days, accompanied by higher humidity at 92%. For further details on weather specifics during December, you can check 's-Hertogenbosch weather in December.
As the summer transitions into autumn, September in 's-Hertogenbosch offers a unique blend of weather characteristics that set it apart from other months. The month experiences a warm touch with peak temperatures hitting 32°C, while the average cools down to a comfortable 15°C, allowing for enjoyable outdoor activities. With sporadic rainfall spanning about a third of the month, the overall humidity remains relatively high at 81%, adding a fresh crispness to the air. This mix of warm days and cool nights creates an inviting atmosphere, making September an ideal time to explore the beauty of the city. For a deeper understanding of how September weather compares to other months, be sure to check out the detailed information in the 's-Hertogenbosch Climate section.