Last updated: August 27, 2025
In September, Nijmegen experiences a delightful transition from summer to autumn, with maximum temperatures reaching up to 32°C (90°F) while the average hovers around a comfortable 15°C (60°F). Nights can bring a chill, with minimum temperatures dropping to 3°C (38°F). The month sees a moderate precipitation total of 59 mm (2.3 in) spread across approximately 10 rainy days, contributing to an 81% humidity level that adds to the brisk autumn air. Whether it's sunny or drizzly, September in Nijmegen offers a beautiful backdrop for exploring this charming Dutch city.
In September, Nijmegen experiences a refreshing transition from the summer heat, with temperatures ranging from a cool 3°C (38°F) at night to a pleasant high of 32°C (90°F) during the day. The average temperature settles at 15°C (60°F), offering a comfortable climate perfect for outdoor activities. As the month unfolds, a gradual decline in warmth signals the approach of autumn, with cooler nights becoming more common. This change creates a striking contrast to the soaring summer highs, inviting residents and visitors alike to enjoy the vibrant fall atmosphere while savoring the last vestiges of warm weather before winter sets in.
In September, Nijmegen experiences a modest precipitation total of 59 mm (2.3 in) over approximately 10 days, marking a transition into the autumn months. This amount reflects a notable decrease compared to the wetter summer months of July and August, which recorded 81 mm and 77 mm respectively. As the region shifts from the balmy days of late summer, September’s relatively lower rainfall signifies the beginning of a drier spell, setting the stage for October’s expected increase in precipitation to 88 mm (3.4 in). This pattern highlights a seasonal trend where late summer provides ample moisture before the early autumn months introduce a brief respite before the rainy season intensifies later in the year.
In Nijmegen during September, the humidity rises to 81%, marking a noticeable increase from the drier summer months. This uptick signifies the transition into autumn, as the humidity levels begin to climb back towards the winter averages. Throughout the year, there is a clear trend of decreasing humidity from January until August, where levels drop to their lowest point at 71%. However, come September, nature starts to reclaim its moisture, foreshadowing the cooler, more humid months ahead. By October, humidity shoots back up to 88%, reinforcing the notion that Nijmegen experiences a significant seasonal shift as summer fades away and the crispness of fall sets in.
As September unfolds in Nijmegen, the UV Index settles at a moderate level of 5, bringing with it a burn time of 30 minutes for fair-skinned individuals. This shift from the high summer UV levels, where peaks reached 8 in both June and July, signifies a gradual transition into autumn. While the sun remains generous in this early fall month, sun safety is still paramount as exposure can lead to skin damage, especially during sunny days. Compare this to the low UV levels in winter months like January and December, where the index dipped to 1. Understanding these trends is crucial for protecting your skin year-round; for more information, visit Nijmegen UV Index.
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As September arrives in Nijmegen, the city basks in a glorious 322 hours of sunshine, marking a delightful transition from the sun-drenched peak of summer. The month captures the essence of early autumn, enjoying a significant dip from the 414 hours of July but still showcasing a vibrant glow compared to the more overcast months that follow. This trend reveals a clear progression of daylight throughout the year, with the sunniest period peaking in late spring and early summer. As days shorten and the year winds down, Nijmegen's charming gardens and historic streets are still kissed by the sun, offering residents and visitors alike a final taste of warmth before the cooler months settle in.
As September rolls into Nijmegen, the likelihood of enjoying sunny weather stands at 31%, indicating a slight reprieve from the summer's waning days. This percentage reflects a stable trend compared to the previous months, showcasing a modest decline from the peak of August at 33%. While the chance of sun remains relatively consistent with the latter summer months of July and June, it still surpasses the sunnier months of the earlier year, such as April at 41%. As autumn approaches, this transition highlights the shifting patterns of sunlight, hinting at a blend of lingering warmth and the crispness of fall. Enjoy those sunny moments while they last!
As summer fades into autumn, Nijmegen experiences a gradual shift in daylight duration throughout September, offering about 12 hours of daylight. This marks a gentle decline from the vibrant 16 hours seen in the peak of June and July. The daylight begins to wane further, transitioning from the abundant brightness of late summer back towards the darker days of autumn, as October will bring just 10 hours. The trends illustrate a rhythmic ebb and flow in natural light, reflecting the changing seasons, where each month brings its unique character and ambiance to this charming Dutch city.
As September arrives in Nijmegen, the wind whispers a gentle transition, with an average speed of 2.9 m/s (6 mph), making it one of the calmer months of the year. This marks a subtle decline from the bustling summer breezes, where wind speeds hovered around 3.4 m/s (8 mph) in both July and August. Following a trend of gradual decrease, September sets the stage for the autumnal shift, before wind speeds notably increase again in October to 4.1 m/s (9 mph). This cyclical rhythm of the winds reflects the seasonal changes, inviting residents to enjoy the crisp air as summer fades and autumn embraces the picturesque landscapes of Nijmegen.
Weather in Nijmegen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Nijmegen, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January weather in Nijmegen present a stark contrast. In September, temperatures typically 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). The month sees about 59 mm (2.3 in) of precipitation spread over 10 days, coupled with relatively high humidity at 81%. In contrast, January experiences much colder conditions, with temperatures dipping as low as -7°C (19°F) and peaking at just 14°C (58°F), averaging around 4°C (40°F). This winter month also has increased precipitation of 66 mm (2.6 in) over 12 days, with humidity slightly higher at 91%. For more detailed insights, you can check out Nijmegen weather in January.
In comparing the weather of September and February, the differences are quite striking. September features a much warmer climate, with average temperatures around 15°C (60°F) and a maximum of 32°C (90°F), while February experiences a chilly average of 5°C (41°F) and can dip to as low as -12°C (11°F). Precipitation is similar in both months, with September receiving 59 mm (2.3 in) over about 10 days, while February has 75 mm (3.0 in) spread over 12 days, indicating a slightly wetter winter. Additionally, February's humidity is higher at 90%, compared to September's 81%. For a more detailed look at February's weather, visit Nijmegen weather in February.
September and March present quite contrasting 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), reflecting the transition from summer to autumn. The month receives a total of 59 mm (2.3 in) of precipitation over approximately 10 days, alongside a relatively high humidity level of 81%.
In contrast, March experiences cooler temperatures, with a minimum of -8°C (19°F) and a maximum of 22°C (72°F). The average temperature during this month is around 7°C (45°F). March is slightly wetter, with 72 mm (2.8 in) of rainfall occurring over 14 days, also accompanied by higher humidity at 87%. The differences in temperature and precipitation highlight the distinct seasonal shifts between these two months. For more detailed insights on March weather, check out Nijmegen weather in March.
In comparing the weather of September and April, we see notable differences in temperature and precipitation. September boasts a wider temperature range, with nighttime lows of 3°C (38°F) and daytime highs reaching 32°C (90°F), contributing to an average temperature of 15°C (60°F). In contrast, April experiences cooler temperatures, ranging from a minimum of -3°C (26°F) to a maximum of 28°C (82°F), with an average of 10°C (50°F). While September has higher precipitation at 59 mm (2.3 in) over 10 days, April is somewhat drier with 34 mm (1.3 in) occurring over 9 days. Humidity levels are similar, with April at 84% and September at 81%. For more specific information on April weather, you can refer to Nijmegen weather in April.
September and May showcase distinct weather characteristics, highlighting the transition between summer and autumn. 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). The month experiences an average of 59 mm (2.3 in) of precipitation over about 10 days, accompanied by high humidity levels at 81%. In contrast, May features slightly cooler temperatures, with a minimum of 0°C (33°F) and an average of 14°C (57°F), while the maximum reaches 31°C (89°F). Although May receives marginally more precipitation at 60 mm (2.4 in) over 13 days, it experiences a lower humidity of 77%. For a closer look at specific conditions, you can check Nijmegen weather in May.
In comparing the weather of September and June, September typically features a wider temperature range, with minimums around 3°C (38°F) and maximums reaching up to 32°C (90°F), while June enjoys milder lows of 8°C (46°F) and highs peaking at 34°C (93°F). Despite June's slightly higher average temperature of 18°C (66°F) compared to September's 15°C (60°F), both months experience roughly the same number of rainy days, with precipitation levels of 70 mm (2.8 in) in June and 59 mm (2.3 in) in September. Additionally, September tends to be more humid, with a humidity level of 81%, versus June's 74%. For a detailed overview of weather conditions in June, you can visit Nijmegen weather in June.
In comparing the weather of September and July, we see notable differences in temperature and precipitation. September experiences a wider temperature range, with minimums dipping to 3°C (38°F) and maximums reaching up to 32°C (90°F), providing an average of 15°C (60°F). In contrast, July has higher overall temperatures, ranging from a minimum of 8°C (46°F) to a scorching maximum of 40°C (104°F), and an average of 19°C (66°F). Precipitation patterns also differ, as September receives around 59 mm (2.3 in) over 10 days, while July sees more rain at 81 mm (3.2 in) across 12 days, accompanied by slightly lower humidity levels of 72% compared to September's 81%. For a more detailed look at July's weather patterns, visit Nijmegen weather in July.
In comparing the weather between September and August, September tends to be cooler, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 32°C (90°F), accompanied by an average temperature of 15°C (60°F). In contrast, August boasts milder temperatures, starting at a minimum of 8°C (46°F) and peaking at 35°C (95°F), with an average of 19°C (66°F). While both months see considerable precipitation, September receives 59 mm (2.3 in) over 10 days, whereas August has 77 mm (3.0 in) spread over 13 days. Additionally, September's humidity is higher at 81%, compared to August's 71%. For a detailed look at August weather specifically in Nijmegen, check out Nijmegen weather in August.
September and October show a notable shift in 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), making it warmer overall. Precipitation records indicate 59 mm (2.3 in) over about 10 days, with humidity at 81%. In contrast, October brings cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 27°C (80°F), averaging 12°C (54°F). This month also sees increased precipitation at 88 mm (3.4 in) across 12 days, alongside a rise in humidity to 88%. For more detailed insights, you can refer to Nijmegen weather in October.
In September, temperatures are generally warmer with a minimum of 3°C (38°F) and an average of 15°C (60°F), reaching highs of 32°C (90°F). The month experiences around 59 mm (2.3 in) of precipitation over approximately 10 days, accompanied by a relatively high humidity level of 81%. In contrast, November brings cooler temperatures, starting with a minimum of -2°C (28°F) and an average of 7°C (45°F), maxing out at 19°C (67°F). This month sees slightly less precipitation at 53 mm (2.1 in) over 11 days, but the humidity rises to 91%. For more detailed insights, you can explore Nijmegen weather in November.
In comparing the weather of September and December, we see a significant shift in temperatures and precipitation patterns. September boasts a more moderate average temperature of 15°C (60°F), with daytime highs reaching up to 32°C (90°F). However, it also experiences 59 mm (2.3 in) of precipitation over about 10 days, and humidity levels are relatively high at 81%. In contrast, December brings cooler conditions, with an average temperature of just 5°C (42°F) and nighttime lows dipping to -4°C (25°F). Moreover, December tends to be wetter, with 88 mm (3.5 in) of precipitation spread over 16 days, accompanied by even higher humidity at 92%. For more details on the specific weather conditions in December, you can check Nijmegen weather in December.
As summer transitions into fall, September in Nijmegen offers a delightful shift in weather, characterized by milder temperatures and an increase in humidity. Unlike the sweltering heat of July and August, this month sees temperatures that are more moderate, allowing for comfortable outdoor activities. While there may be occasional showers, with about ten days of precipitation throughout the month, the overall atmosphere remains pleasant. The blend of warmth during the day and cooler evenings reflects the charming change of seasons, making it a wonderful time to experience the beauty of Nijmegen's landscape. For a comprehensive overview of the weather patterns, explore Nijmegen Climate.