September Weather in Gent, Belgium

Last updated: August 21, 2025

September in Gent, Belgium offers a delightful mix of early autumn charm and lingering summer warmth. With maximum temperatures soaring to 32°C (90°F), the days begin to cool down, averaging around 16°C (60°F) and dipping at night to a refreshing 4°C (40°F). Rain is a frequent visitor this month, with 55 mm (2.2 in) of precipitation over approximately 9 days, contributing to the lush greenery typical of the region. High humidity levels, around 82%, wrap the city in a gentle, moist embrace, enhancing the picturesque landscapes that make Gent so enchanting this time of year. Visitors will enjoy the balance of warm days and cool nights, perfect for exploring the city’s rich history and vibrant culture.

September Temperature in Gent

In September, Gent, Belgium experiences a delightful transition from the warmth of summer to the crispness of autumn. The temperatures begin to cool, with minimums averaging 4°C (40°F) and maximums reaching up to 32°C (90°F), creating a comfortable climate perfect for exploring the city's charming streets. The average temperature settles around 16°C (60°F), providing a pleasant backdrop for both outdoor activities and cozy café visits. As the month progresses, enjoy the lingering warmth of late summer days while preparing for the cooler, more tempered evenings that lie ahead. The shift in temperature not only marks a seasonal change but also invites locals and visitors alike to savor the beautiful landscapes and vibrant culture of Gent.

September Weather in Gent: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Gent, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gent, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245505764666660554643
Data source: Temperature data for Gent generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Gent

September in Gent, Belgium typically sees a moderate decline in precipitation, with an average of 55 mm (2.2 in) of rainfall spread over 9 days. This marks a slight decrease from the wetter days of August, where 74 mm (2.9 in) fell over 14 days. As summer transitions to autumn, the light rain comes as a welcome reprieve, providing a refreshing change without overwhelming the landscape. The overall trend reveals a gradual shift towards wetter months ahead, with October's average rising to 82 mm (3.2 in), while September’s milder conditions offer a brief but pleasant pause before the increasing rainfall of fall.

September Precipitation Trends in Gent

The chart displays monthly precipitation patterns in Gent, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Gent, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec636368406263677455825489
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gent

September in Gent, Belgium, experiences an average humidity level of 82%, marking a slight increase from the previous months of summer. This moderate humidity reflects a transition as the city shifts away from the drier air of August, which saw humidity drop to 76%. As autumn approaches, the moisture in the air begins to climb again, signaling the return of the wetter, cooler months ahead. In fact, this month’s figures hint at the looming peaks of winter, when humidity rises sharply to 89% in October and 92% in November and December. Overall, September serves as a gentle precursor to the more humid conditions that are characteristic of the late fall and winter seasons in Gent.

September Average Humidity in Gent

This chart illustrates the average monthly humidity levels in Gent, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Gent is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Gent

In September, Gent experiences a moderate UV Index of 5, indicating a balance between the summer's intensity and the gradual onset of fall. This marks a notable drop from the peak summer levels of 8 in July and June, where the burn time was a brisk 15 minutes. With the September sun allowing for a burn time of 30 minutes, it's an ideal moment to enjoy outdoor activities while still exercising caution. As the UV Index decreases into the autumn months, residents and visitors can take comfort in the manageable exposure levels as they transition away from the high summer sun. For those looking to plan their time outdoors, keeping an eye on the Gent UV Index is essential for safe sun enjoyment.

Maximum UV Index Levels in Gent for September

The chart shows the monthly maximum UV Index (UVI) for Gent in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Gent typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Gent September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Gent

As September rolls in, Gent, Belgium, basks in an impressive 323 hours of sunshine, a radiant farewell to summer's warmth. This month reflects a noticeable decline in sunlight compared to the sun-drenched heights of July and June, both exceeding 410 hours. Yet, September still outshines its predecessors in the chilly months of October and November, where sunlight drops significantly, showcasing the gradual shift towards the cooler seasons. The lingering warmth of late summer fills the city, offering vibrant days perfect for exploring its charming canals and historic architecture, even as the sunlight begins to wane towards the end of the year. As the days shorten, Gent gracefully transitions, reminding us to savor the last golden hues of daylight before winter's embrace.

Monthly Sunshine Duration in Gent: September Highlighted

The September sunshine duration represents the total number of hours Gent experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec119h202h276h352h401h410h416h387h323h243h197h151h
Data source: Gent September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Gent During September

As September rolls in, the likelihood of sunny weather in Gent, Belgium maintains a steady 34% chance of sunshine. This figure is reflective of the city's gradual transition from the summer months, where the sun's presence peaks in July at 35%. Interestingly, September mirrors the sun chances of late spring, showing a consistency that suggests a lingering warmth before autumn sets in. Compared to the cooler months, like November with just 22% likelihood, it's clear that September still holds onto some summer charm, making it a delightful time for outdoor activities amidst the early hints of fall.

Percentage of Sunny Days in September in Gent

The chart illustrates the percentage of sunny days in Gent throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Gent experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec13%30%40%48%33%34%35%32%34%31%22%15%
Data source: Gent September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Gent in September

As summer fades into autumn, September in Gent, Belgium offers a gentle transition with about 12 hours of daylight. This marks a noticeable dip from the sun-soaked 16 hours enjoyed in June, yet still provides more light than the dwindling days ahead in October, which will fall to just 10 hours. Following the vibrant months of May and June, where daylight peaked at 15 and 16 hours respectively, September hints at the retreating days of winter, yet maintains a respectable length. As the leaves begin to change, inviting a cozy ambiance, the daylight in September serves as a poignant reminder of the cyclical nature of the seasons, bridging the gap between summer's abundance and winter's early dusk.

Average Daylight Hours in Gent for September

The chart illustrates the variation in daylight duration in Gent throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 27m10h11h 55m13h 52m15h 34m16h 28m15h 59m14h 27m12h 34m10h 38m8h 53m7h 57m
Data source: Gent daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Gent

As summer gives way to autumn, September in Gent, Belgium offers a gentle breeze, with an average wind speed of 3.0 m/s (7 mph). This marks a shift from the slightly more vibrant winds of the preceding months, transitioning from the warmer summer air. In fact, September's winds are among the calmest of the year, reflecting a trend of diminishing wind speeds as the season turns. Following the breezy months of January through May, where averages hover between 4.1 m/s (9 mph) and 4.4 m/s (10 mph), the arrival of fall brings a notable reduction, which can be felt in the serene ambiance of the city. As the winds subside, Gent transforms, inviting visitors and locals alike to bask in the beautiful, tranquil moments of early autumn.

Average September Wind Speed in Gent

The chart displays monthly wind speed patterns in Gent, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.43.93.54.12.83.23.43.0 m/s4.23.24.0
Data source: Gent September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Gent Compares to Other Months

Weather in Gent varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Gent, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present contrasting weather patterns. In September, temperatures range from a mild 4°C (40°F) at night to a warm 32°C (90°F) during the day, with an average of 16°C (60°F). This month experiences 55 mm (2.2 in) of rainfall over approximately 9 days, accompanied by a relatively high humidity of 82%. In stark contrast, January showcases a colder climate, with minimum temperatures dropping to -6°C (21°F) and maximums reaching only 14°C (58°F). The average temperature sits at a chilly 4°C (40°F), with rainfall slightly higher at 63 mm (2.5 in) across about 11 days and even greater humidity at 91%. For more detailed insights, you can refer to the Gent weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a mild 4°C (40°F) at night to a warm 32°C (90°F) during the day, with an average of 16°C (60°F). However, the month experiences 55 mm (2.2 in) of precipitation over about 9 days, and humidity levels are relatively high at 82%. In stark contrast, February brings much cooler conditions, with temperatures dipping as low as -9°C (17°F) and peaking at 18°C (65°F), averaging around 6°C (42°F). The precipitation increases slightly to 63 mm (2.5 in) over 12 days, accompanied by a higher humidity of 89%. For a more detailed perspective on February weather, you can check Gent weather in February.

September and March present quite contrasting weather conditions. In September, temperatures typically range from a mild 4°C (40°F) at night to a warm 32°C (90°F) during the day, averaging around 16°C (60°F). The month experiences a lower precipitation total of 55 mm (2.2 in) over about 9 days and maintains humidity at a comfortable 82%.

In contrast, March welcomes colder weather with nighttime lows dipping to -7°C (20°F) and daytime highs reaching 22°C (72°F), averaging only 7°C (46°F). This month sees slightly higher precipitation at 68 mm (2.7 in), occurring over 14 days, and increased humidity at 87%.

For more detailed insights into the weather patterns, you can check out Gent weather in March.

When comparing the weather in September and April, we can see notable differences in temperature and precipitation. September tends to be warmer with an average temperature of 16°C (60°F) and maximums reaching up to 32°C (90°F), while April has a cooler average of 10°C (51°F) and maximums around 26°C (80°F). In terms of precipitation, September experiences slightly more rainfall with 55 mm (2.2 in) over 9 days, compared to April's 40 mm (1.6 in) over 8 days. Humidity levels are also higher in September at 82%, while April has a slightly elevated humidity of 85%. For more detailed information on April weather, check Gent weather in April.

September and May offer distinct weather experiences, though both months share similar humidity levels of 82%. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 32°C (90°F), with an average temperature of 16°C (60°F). The month sees about 55 mm (2.2 in) of precipitation over approximately 9 days. In contrast, May features slightly cooler temperatures, ranging from a minimum of 1°C (33°F) to a maximum of 30°C (87°F), with an average of 14°C (57°F). Precipitation in May is a bit higher at 62 mm (2.4 in) spread across around 12 days. For more specific details, check out Gent weather in May.

September and June present distinct weather patterns, despite having similar humidity levels at 82%. June tends to be slightly warmer, with average temperatures around 18°C (65°F) and maximums reaching 33°C (91°F), while September sees slightly cooler averages of 16°C (60°F) and maximums peaking at 32°C (90°F). Both months experience a comparable number of rainy days—nine—yet September has less total precipitation at 55 mm (2.2 in) compared to June's 63 mm (2.5 in). For more detailed information on the weather conditions in June, you can check out Gent weather in June.

In July, the weather typically presents warmer conditions, with average temperatures reaching around 19°C (66°F) and maximum highs soaring up to 39°C (103°F). This month experiences slightly higher precipitation, totaling 67 mm (2.6 in) over 11 days, and maintains a humidity level of 80%. In contrast, September sees a broader temperature range with minimums dipping to 4°C (40°F) and maximums peaking at 32°C (90°F), resulting in an average of 16°C (60°F). Although September has fewer rainfall days at 9, it accumulates 55 mm (2.2 in) of precipitation, while the humidity remains relatively high at 82%. For a closer look at July's weather patterns, you can check Gent weather in July.

In comparing the weather of September to August, September experiences cooler temperatures overall, with a minimum of 4°C (40°F) and a maximum of 32°C (90°F), while August has milder conditions, with a minimum of 8°C (47°F) and a maximum of 35°C (96°F). The average temperature in September is also lower at 16°C (60°F) compared to August's average of 19°C (66°F). Moreover, September sees increased precipitation, totaling 55 mm (2.2 in) across 9 rainy days, whereas August has 74 mm (2.9 in) over 14 days, indicating a wetter month. Interestingly, the humidity in September is slightly higher at 82% compared to August's 76%. For a more detailed look at August weather, visit Gent weather in August.

September and October exhibit notable differences in weather patterns. In September, temperatures range from a mild 16°C (60°F) on average, with maximum highs reaching up to 32°C (90°F), while minimums drop to 4°C (40°F). The month sees a total precipitation of 55 mm (2.2 in) over approximately 9 days, accompanied by a humidity level of 82%. In contrast, October experiences cooler temperatures, with an average of 13°C (55°F) and a maximum of 25°C (77°F). The month is wetter, with precipitation rising to 82 mm (3.2 in) across about 13 days, and humidity increases to 89%. For detailed weather forecasts, you can visit Gent weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 32°C (90°F), with an average of 16°C (60°F), indicating a warm early autumn. Additionally, September sees around 55 mm (2.2 in) of precipitation over approximately 9 days, with a relatively high humidity level of 82%.

In stark contrast, November features much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 19°C (67°F), averaging at just 8°C (46°F). Precipitation remains similar at 53 mm (2.1 in), but occurs over more days—12 in total—leading to an increase in humidity to 92%. You can learn more about the specific weather patterns in this month through this link: Gent weather in November.

In September, temperatures typically range from a minimum of 4°C (40°F) to a maximum of 32°C (90°F), with an average of 16°C (60°F). The month experiences 55 mm (2.2 in) of precipitation over about 9 days, accompanied by relatively high humidity at 82%. In contrast, December sees a significant drop in temperatures, with a minimum of -4°C (25°F) and a maximum of 15°C (59°F), averaging just 6°C (43°F). This month is not only colder but also wetter, with 89 mm (3.5 in) of precipitation spread across 16 days and even higher humidity at 92%. For a more detailed look at December weather, you can check out Gent weather in December.

Compare Gent's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Gent

As September rolls in, Gent experiences a refreshing transition from the summer heat, marked by an average temperature of 16°C. This month stands out with noticeably cooler nights and mild days, making it a stark contrast to the blazing warmth of summer. While the precipitation increases slightly, with about nine days of rainfall, the humidity remains high, creating a lush, vibrant atmosphere throughout the city. As fall approaches, the weather is perfect for exploring Gent's charming streets and historic sites. For detailed insights, check out Gent Climate.