Last updated: August 27, 2025
September in Maastricht, Netherlands offers a unique blend of warm days and cool nights, with temperatures ranging from a maximum of 33°C (91°F) to a refreshing minimum of 2°C (37°F). The average temperature rests at a comfortable 15°C (59°F), making it a pleasant time for outdoor activities. However, be prepared for the occasional drizzle, as the month sees 64 mm (2.5 in) of precipitation spread over approximately 10 days. With humidity levels at 81%, the air can feel quite warm and muggy at times. Overall, September is a transitional month that showcases Maastricht's varied climate.
In September, Maastricht experiences a delightful transition from the summer heat, with temperatures starting to cool down. The month boasts a minimum temperature of around 2°C (37°F), while the average climbs to a pleasant 15°C (59°F). Daytime highs can still reach up to 33°C (91°F), allowing for a few warm, sunny days that echo the remnants of summer. This significant drop from the sizzling months of July and August marks the onset of autumn, making September an ideal time to enjoy the city's charming outdoor scenes before the chill of winter sets in. Whether you're strolling along the Meuse River or exploring the historic streets, September in Maastricht offers a perfect blend of comfortable warmth and early fall freshness.
September in Maastricht experiences a moderate rainfall of 64 mm (2.5 in), marking a slight decline compared to the preceding months. With only 10 days of precipitation, this month sees fewer rainy days, suggesting a transition away from the wetter summer months. This trend indicates a gradual shift towards drier autumn conditions, as the skies clear and give way to a crisp air that prepares the region for the impending fall. Overall, September strikes a balance between warmth and brief showers, making it a charming time to enjoy the outdoors before the heavier rains of October begin.
As summer fades into autumn, September in Maastricht experiences a noticeable uptick in humidity, settling at a comfortable 81%. This marks a shift from the drier conditions of July and August, where humidity levels dipped to 72% and 71%, respectively. The transition reflects a gradual return to the wetter environment typical of the fall months, as humidity climbs toward the higher levels seen in the earlier part of the year, peaking at 91% in both November and January. This pattern creates a refreshing atmosphere, blending the remnants of summer warmth with the crispness of the approaching autumn, making September a unique time for experiencing the scenic beauty of Maastricht.
As September arrives in Maastricht, the UV Index settles at a moderate level of 5, signaling a shift from the high summer readings. With a burn time of 30 minutes, it’s essential to enjoy the sunny days while taking basic precautions, particularly after a couple of months of very high exposure peaks in June and July. This transition reflects a more comfortable outdoor environment, yet it still encourages mindful sun protection as the rays remain strong enough to cause skin damage with prolonged exposure. As the month progresses towards autumn, it's a great time to soak in the sunshine while keeping track of the UV levels. For more details on daily variations and safety tips, check out the Maastricht UV Index.
UV Risk Categories
As summer fades into autumn, September in Maastricht emerges as a delightful transition, boasting 318 hours of sunshine. This month continues the trend of high sunlight that peaks in July with 407 hours, showcasing the vibrant end of the summer season. While the sun shines brightly and the days remain warm, the sunlight gradually begins to recede, reflecting the natural rhythm of the seasons. Compared to the 395 hours recorded in July and August, September still offers a generous glow, providing plenty of opportunities for outdoor activities and the chance to savor the lingering warmth before winter. As daylight diminishes in October and beyond, September stands out as a golden opportunity to embrace the outdoors amid its splendid sunshine.
In Maastricht, the chances of enjoying sunny weather in September stand at a promising 38%, making it one of the brighter months of the year. This slight increase from the summer months reflects a gentle transition into autumn, where the sun still manages to assert its presence. While July and August see slightly higher probabilities, September offers a delightful balance; the warmth of summer lingers while the precipitation levels subtly begin to drop again. As the year progresses, the likelihood of sunshine diminishes, showcasing September as a fleeting opportunity to bask in mild, sunny days before the darker months take hold. Overall, it’s a prime time to soak in the outdoor charm of Maastricht’s scenic landscapes.
In Maastricht, September offers a delightful transition as daylight begins to wane, with the city basking in about 12 hours of sunshine. Following the vibrant summer months of June and July, which maxed out at 16 and 15 hours respectively, the daylight starts to decrease, reflecting the early signs of autumn. This gentle decline continues into October, which drops to 10 hours. The shifts in daylight duration throughout the year showcase a rhythm of life in Maastricht, beautifully illustrating how the seasons influence both the atmosphere and daily activities as the lush, bright days of summer give way to the cozy ambiance of fall.
As September arrives in Maastricht, the whispers of autumn begin to take hold, with average wind speeds gently settling at 2.8 m/s (6 mph). This marks a notable dip from the warmer months, reflecting a transition towards the quieter breezes of fall. While May and the summer months boast stronger winds around 4.4 m/s (10 mph), September's soft currents encourage leisurely strolls along the historic streets, creating a serene backdrop for the changing leaves. Comparatively, the month also serves as a refreshing prelude to the more invigorating gusts expected in October, which returns to an average of 4.4 m/s (10 mph), setting the stage for the brisk days ahead. This seasonal ebb and flow of wind captures the essence of Maastricht’s charm as it gracefully shifts from the spirited warmth of summer to the contemplative embrace of autumn.
Weather in Maastricht varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Maastricht, focusing on differences in temperature, rainfall, humidity, and UV levels.
September in Maastricht presents a diverse weather experience, with temperatures ranging from a cool 2°C (37°F) to a warm peak of 33°C (91°F) and an average of 15°C (59°F). The month sees moderate precipitation of 64 mm (2.5 in) over roughly 10 days, accompanied by a humidity level of 81%. In contrast, January offers a much colder climate, with temperatures dipping as low as -8°C (18°F) and averaging around 3°C (38°F), while reaching a maximum of 13°C (56°F). This winter month experiences slightly higher precipitation at 78 mm (3.1 in) over 13 days and a higher humidity of 91%. For more detailed insights into the January climate, you can refer to Maastricht weather in January.
September weather features a broader temperature range, with minimums around 2°C (37°F), averages at 15°C (59°F), and maximums reaching up to 33°C (91°F). This month generally experiences about 64 mm of precipitation over approximately 10 days, accompanied by high humidity levels of 81%. In contrast, February presents a much cooler climate, with temperatures ranging from a chilly minimum of -10°C (15°F) to a more temperate maximum of 21°C (69°F), leading to an average of 5°C (41°F). February sees slightly more rainfall, totaling 80 mm over about 12 days, and higher humidity at 90%. For more detailed insights, you can explore the Maastricht weather in February.
In comparing the weather of September and March, notable differences in temperature and precipitation emerge. September experiences milder conditions with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 33°C (91°F) and an average of 15°C (59°F). In contrast, March presents cooler temperatures, with lows plunging to -10°C (15°F) and an average of only 7°C (45°F). Additionally, March sees a higher precipitation level of 87 mm (3.4 in) over more days (15 days) compared to September's 64 mm (2.5 in) over 10 days, as well as slightly increased humidity. For a more detailed look at March's weather, check out the link: Maastricht weather in March.
In comparing the weather between September and April, we notice distinct differences in temperature and precipitation. September experiences a broader temperature range, with lows around 2°C (37°F) and highs reaching up to 33°C (91°F), resulting in an average of 15°C (59°F). In contrast, April has cooler temperatures, with minimums dropping to -4°C (25°F) and an average of 10°C (50°F), peaking at 28°C (82°F). While September boasts a higher precipitation total of 64 mm (2.5 in) over approximately 10 days, April sees less rain at 39 mm (1.5 in) across 9 days. Additionally, humidity levels are slightly higher in April at 84%, compared to 81% in September. For a more detailed look at the weather in April, you can visit Maastricht weather in April.
When comparing the weather in September and May, several notable differences emerge. September boasts a wider temperature range, with minimums of 2°C (37°F) and maximums reaching up to 33°C (91°F), which allows for warmer days, particularly toward the month's end. In contrast, May presents cooler temperatures, with minimums around 0°C (32°F) and maximums peaking at 31°C (89°F). Precipitation levels are relatively similar, with September accumulating 64 mm (2.5 in) over 10 rainy days, while May sees slightly more at 68 mm (2.7 in) spread over 13 days. Humidity levels are comparable, sitting at 81% in September and a bit lower at 77% in May. For those interested in a closer look at May's weather, you can check Maastricht weather in May.
In comparing the weather of September and June, both months feature similar maximum temperatures, topping out around 33°C (91°F in September and 92°F in June). However, September generally starts with cooler temperatures, ranging from a minimum of 2°C (37°F) to an average of 15°C (59°F), compared to June's milder minimum of 7°C (45°F) and average of 18°C (65°F). Rainfall is also more abundant in June, with 88 mm (3.5 inches) over 12 days, compared to September's 64 mm (2.5 inches) over 10 days. Furthermore, humidity levels are higher in September at 81%, while June maintains a slightly lower humidity of 74%. For a detailed look at the weather in June, visit Maastricht weather in June.
In comparing the weather between September and July, we see notable differences in temperature and precipitation patterns. September offers a wider range of temperatures, with a minimum of 2°C (37°F) and a maximum of 33°C (91°F), resulting in an average temperature of 15°C (59°F). On the other hand, July maintains milder minimum temperatures of 8°C (46°F) and can soar up to 40°C (104°F), giving it a higher average of 19°C (66°F). Precipitation is also slightly higher in July, with 87 mm (3.4 inches) over 12 days compared to September's 64 mm (2.5 inches) over 10 days. Humidity in September is higher at 81%, while July sees a lower level at 72%. For more details about July weather, visit Maastricht weather in July.
In comparing the weather of September and August, September experiences a more varied temperature range, with a minimum of 2°C (37°F) and a maximum of 33°C (91°F), leading to an average of 15°C (59°F). In contrast, August is warmer overall, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 36°C (96°F) and an average of 19°C (66°F). Additionally, September sees slightly less precipitation at 64 mm (2.5 in) over 10 days, compared to August's 78 mm (3.1 in) spread over 14 days. Humidity levels are higher in September at 81%, compared to 71% in August, suggesting a more humid feel as summer transitions into autumn. For a detailed look at August weather, check out Maastricht weather in August.
September and October showcase a significant shift in weather patterns. In September, temperatures range from a chilly 2°C (37°F) at night to a warm 33°C (91°F) during the day, with an average of 15°C (59°F). The month sees about 64 mm (2.5 in) of precipitation over approximately 10 days, along with a humidity level of 81%. In contrast, October brings cooler conditions with minimum temperatures dipping to 1°C (34°F) and a maximum of 25°C (78°F), leading to an average of 12°C (53°F). Precipitation increases to 85 mm (3.3 in) over 14 days, and humidity rises to 88%, indicating a trend towards wetter and cooler weather. For more details on October conditions, check out Maastricht weather in October.
September and November present distinct weather characteristics. In September, temperatures average around 15°C (59°F), with a range from a chilly 2°C (37°F) at night to a warm 33°C (91°F) during the day, making it a month of transition into autumn. The humidity is relatively high at 81%, accompanied by 64 mm (2.5 inches) of precipitation over about 10 days. In contrast, November brings significantly cooler temperatures, with daily averages dropping to 7°C (44°F) and nighttime lows falling to -4°C (25°F). Although it experiences slightly less precipitation at 59 mm (2.3 inches), it is spread over more days, totaling 12. The humidity increases to 91%, giving November a damp feel. For a closer look at what to expect during this month, check out Maastricht weather in November.
In September, the weather is relatively warm, with average temperatures around 15°C (59°F) and highs reaching up to 33°C (91°F). The month experiences about 64 mm (2.5 in) of precipitation over approximately 10 days, and the humidity stands at a comfortable 81%. In contrast, December brings much colder temperatures, averaging 5°C (41°F) with lows dipping to -4°C (24°F) and highs only reaching 15°C (59°F). Precipitation increases to 113 mm (4.4 in) spread over about 20 days, alongside a higher humidity of 92%. This stark difference highlights the transition from the warm, humid days of late summer to the chilly, damp conditions of winter. For more detailed insights, check out Maastricht weather in December.
As September unfolds in Maastricht, the weather offers an intriguing transition from the summer heat to the crispness of autumn. While maximum temperatures can still reach a sweltering 33°C, the average is much milder at 15°C, allowing for comfortable days and cooler nights. With humidity levels peaking at 81%, the occasional precipitation—averaging 64 mm over about 10 days—adds a refreshing touch. This month stands out for its blend of warm and cool days, marking a distinct shift compared to the more stable summer conditions. To explore more about the intriguing climate variations throughout the year, check out Maastricht Climate.