September Weather in Han-sur-Lesse, Belgium

Last updated: August 21, 2025

September in Han-sur-Lesse, Belgium showcases a diverse climate, with temperatures ranging from a brisk 2°C (35°F) at night to a balmy 33°C (92°F) during the day, averaging around 14°C (58°F). Visitors can expect a relatively humid atmosphere with levels peaking at 81%, contributing to the month's captivating landscapes. Although rainfall is notable, with 68 mm (2.7 in) spread over 11 days, this moisture nourishes the lush greenery that characterizes the region. Whether enjoying sunny afternoons or cooling down under intermittent showers, September offers a unique blend of experiences for all who visit.

September Temperature in Han-sur-Lesse

In September, Han-sur-Lesse experiences a delightful transition from the summer heat to the cooler onset of autumn. With minimum temperatures around 2°C (35°F) and an average of 14°C (58°F), the days start to feel crisper, while the afternoons can still reach a warm 33°C (92°F), reminiscent of late summer warmth. This month stands out for its balanced weather, making it an ideal time for outdoor activities amidst the stunning natural scenery of the region. As the temperatures gradually decline, visitors can enjoy the pleasant climate before the chill of October sets in, offering a perfect backdrop for exploring the enchanting caves and lush landscapes of Han-sur-Lesse.

September Weather in Han-sur-Lesse: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Han-sur-Lesse, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Han-sur-Lesse, 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).
JanFebMarAprMayJunJulAugSepOctNovDec363943485563646458524339
Data source: Temperature data for Han-sur-Lesse generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Han-sur-Lesse

In September, Han-sur-Lesse experiences a moderate dip in precipitation, recording 68 mm (or 2.7 in), marking the end of summer with a shift towards the wetter months. This month sees rainfall on 11 days, suggesting a balance between sunny intervals and occasional showers. Compared to the higher precipitation peaks earlier in the season, such as 93 mm in March and 80 mm in August, September serves as a transitional phase, providing a drier reprieve before the autumn deluge begins. As the landscape prepares for the arrival of October’s average of 92 mm, the gradual reduction in rainfall in September highlights a notable trend of fluctuating weather patterns in the region, captured by the cozy interlude between summer and the wetting embrace of fall.

September Precipitation Trends in Han-sur-Lesse

The chart displays monthly precipitation patterns in Han-sur-Lesse, 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 Han-sur-Lesse, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec8381934575838380689265123
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Han-sur-Lesse

As autumn begins to settle in, September in Han-sur-Lesse, Belgium, experiences a noticeable rise in humidity, averaging 81%. This is a refreshing shift from the drier summer months, where humidity levels dipped to their lowest at 71% in August. Overall, the trend reveals a gradual increase in humidity from the peak summer season towards the wetter months of early autumn and winter. Following September, humidity soars again, reaching 88% in October, with winter months, such as January and December, achieving their highest levels, hovering around 91-92%. This pattern not only highlights the transition into the wetter, cozier season but also sets the stage for the lush, verdant landscapes that Belgium is renowned for.

September Average Humidity in Han-sur-Lesse

This chart illustrates the average monthly humidity levels in Han-sur-Lesse, 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 Han-sur-Lesse is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Han-sur-Lesse

As summer fades and September rolls into Han-sur-Lesse, the UV Index sees a gentle decline to 5, indicating a moderate exposure risk with a burn time of 30 minutes. This shift reflects a transition from the very high levels experienced in June and July, where sun protection was essential within just 15 minutes of sun exposure. While still requiring caution, the sun's intensity is less daunting than the summer months, making it a pleasant time for outdoor activities. As the days shorten and temperatures cool, residents can enjoy the mild sunshine while being mindful of UV levels. For more detailed information, visit Han-sur-Lesse UV Index.

Maximum UV Index Levels in Han-sur-Lesse for September

The chart shows the monthly maximum UV Index (UVI) for Han-sur-Lesse 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 Han-sur-Lesse typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234578875421
Data source: Han-sur-Lesse 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 Han-sur-Lesse

In September, Han-sur-Lesse basks in a delightful 319 hours of sunshine, marking a transition into the autumn months. This vibrant glow is a farewell to a summer filled with warmth, as sunshine peaks in July at 405 hours before gradually receding. Interestingly, September still offers a generous amount of light, outshining the colder, darker months ahead, like October's 241 hours and November's 183 hours. As the days shorten, locals and visitors can still enjoy the tail end of summer's radiance—making September a charming time to explore the enchanting landscapes of Belgium.

Monthly Sunshine Duration in Han-sur-Lesse: September Highlighted

The September sunshine duration represents the total number of hours Han-sur-Lesse 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.
JanFebMarAprMayJunJulAugSepOctNovDec113h198h264h345h395h403h405h382h319h241h183h126h
Data source: Han-sur-Lesse September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Han-sur-Lesse During September

In Han-sur-Lesse, Belgium, September brings a moderate 38% chance of sunny weather, making it one of the brighter months as summer transitions into autumn. Notably, this likelihood stands in contrast to the peak sun chances of April (47%), highlighting the lingering warmth before the cooler October sets in with only 30%. While the sun may not shine every day, this month offers a welcoming glimpse of sunlight compared to late summer's lackluster 27% in August. As daylight shortens and the colorful foliage emerges, September remains a delightful time for outdoor activities, basking in the late-season sun.

Percentage of Sunny Days in September in Han-sur-Lesse

The chart illustrates the percentage of sunny days in Han-sur-Lesse 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 Han-sur-Lesse experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec8%31%40%48%32%31%32%27%38%30%23%15%
Data source: Han-sur-Lesse September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Han-sur-Lesse in September

As summer fades into autumn in Han-sur-Lesse, Belgium, September marks a gentle transition in daylight duration, providing about 12 hours of sunlight. Following the peak of 16 hours in June, the daylight hours gradually decrease, reflecting nature's shift towards the cooler months. The 12 hours experienced in September create a perfect balance, offering ample time for outdoor activities while hinting at the upcoming shorter days of October, which will bring 10 hours of daylight. This decline emphasizes the rhythmic dance of seasons, where lush summer brightness gives way to the cozy embrace of fall.

Average Daylight Hours in Han-sur-Lesse for September

The chart illustrates the variation in daylight duration in Han-sur-Lesse throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 34m10h 4m11h 55m13h 49m15h 27m16h 18m15h 51m14h 23m12h 33m10h 40m8h 59m8h 6m
Data source: Han-sur-Lesse daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Han-sur-Lesse

As September unfolds in Han-sur-Lesse, Belgium, the winds ease to a gentle 2.7 m/s (6 mph), marking a notable decline as summer transitions to fall. This calmness follows a trend of fluctuating wind speeds throughout the year, with the strongest gusts typically seen in the colder months. January and October boast the highest averages at 4.3 m/s (10 mph) and 4.4 m/s (10 mph), respectively, while the summer months experience the lightest breezes. The gradual shift in wind patterns not only heralds the arrival of autumn but also enhances the area's serene landscape, inviting both locals and visitors to embrace the tranquil beauty of Han-sur-Lesse as the seasons change.

Average September Wind Speed in Han-sur-Lesse

The chart displays monthly wind speed patterns in Han-sur-Lesse, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.64.03.44.42.73.53.42.7 m/s4.43.34.2
Data source: Han-sur-Lesse September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Han-sur-Lesse Compares to Other Months

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

September presents a wide range of temperatures, with a minimum of 2°C (35°F) and a maximum reaching up to 33°C (92°F), resulting in an average of 14°C (58°F) and significantly lower precipitation than January at 68 mm (2.7 in) over 11 days. In contrast, January experiences much colder conditions, with temperatures ranging from a frigid -13°C (10°F) to a maximum of 12°C (54°F) and an average of just 2°C (37°F). The month is marked by slightly higher precipitation at 83 mm (3.3 in) over 13 days and a humidity level of 91%, making it feel even colder. For a detailed overview of conditions during this time, check out Han-sur-Lesse weather in January.

In comparing the weather of September and February, we see notable differences in temperature and precipitation. September typically enjoys a wider temperature range, with minimums around 2°C (35°F) and maximums reaching as high as 33°C (92°F), resulting in an average of 14°C (58°F). In contrast, February experiences colder temperatures, with minimums plummeting to -10°C (14°F) and maximums only reaching 19°C (67°F), averaging at 4°C (40°F). Additionally, February tends to be slightly wetter, with 81 mm (3.2 in) of precipitation over 13 days, compared to September's 68 mm (2.7 in) over 11 days. The humidity is also higher in February at 90%, compared to 81% in September, making late winter feel particularly damp. For more detailed insights on February weather, you can visit Han-sur-Lesse weather in February.

In comparing the weather in September and March, a distinct shift in climate is evident. September typically experiences milder temperatures, with a minimum of 2°C (35°F) and an average of 14°C (58°F), reaching a maximum of 33°C (92°F). In contrast, March is much cooler, boasting a minimum of -12°C (11°F) and an average temperature of just 6°C (43°F), with highs reaching only 22°C (72°F). Precipitation levels are also notable; September sees about 68 mm (2.7 in) over 11 days, while March has higher total precipitation at 93 mm (3.7 in) across 16 days. Furthermore, humidity levels are slightly higher in March at 87%, compared to September's 81%. For more specific information about March weather, visit Han-sur-Lesse weather in March.

In comparing the weather between September and April, it's clear that both months exhibit considerable variation in temperature and precipitation. September typically enjoys higher temperatures, with a minimum of 2°C and a maximum reaching 33°C, resulting in an average of 14°C. In contrast, April starts cooler, with temperatures ranging from a minimum of -5°C to a maximum of 26°C and an average of 9°C.

Precipitation is also a factor, as September sees about 68 mm over 11 days, while April has less rainfall at 45 mm across 10 days. Interestingly, the humidity levels in both months are quite similar, with September at 81% and April slightly higher at 84%. For more detailed information specifically regarding April weather, you can visit Han-sur-Lesse weather in April.

When comparing the weather in September and May, we see some notable differences in temperature and precipitation patterns. September boasts a wider temperature range, with minimums around 2°C (35°F) and maximums reaching up to 33°C (92°F), while May experiences slightly cooler temperatures, ranging from 0°C (32°F) to a maximum of 30°C (87°F). Precipitation levels in May are also slightly higher, with 75 mm (2.9 in) of rain over 14 days compared to September's 68 mm (2.7 in) over 11 days. Additionally, September maintains a higher humidity level at 81%, whereas May is a touch lower at 77%. For more specific details on May weather, you can check Han-sur-Lesse weather in May.

September and June present quite different weather experiences. In September, temperatures range from a cool minimum of 2°C (35°F) to an average of 14°C (58°F), peaking at a warm 33°C (92°F). The month sees approximately 68 mm (2.7 in) of precipitation over about 11 days, with humidity levels around 81%. In contrast, June offers slightly warmer conditions, with a minimum of 6°C (42°F), an average temperature of 17°C (63°F), and a maximum reaching 32°C (90°F). Despite being wetter than September, June's precipitation totals 83 mm (3.3 in) over 13 days, but with lower humidity at 74%. For more details, check out Han-sur-Lesse weather in June.

In comparing the weather between September and July, we see notable differences in both temperature and precipitation. September experiences a wider range of temperatures, with a minimum of 2°C (35°F) and a maximum of 33°C (92°F), while July has milder temperatures, starting at a minimum of 7°C (44°F) and peaking at 37°C (99°F). Precipitation levels are slightly higher in July, totaling 83 mm (3.3 in) over 11 days compared to September's 68 mm (2.7 in) over the same number of days. Furthermore, September has a higher humidity level at 81%, compared to July's 72%. For more detailed insights about July weather, you can visit this link: Han-sur-Lesse weather in July.

In comparison to August, September experiences cooler temperatures, with a minimum of 2°C (35°F) and an average of 14°C (58°F), contrasted with August's minimum of 6°C (42°F) and average of 18°C (65°F). While September sees a maximum of 33°C (92°F), August can reach as high as 36°C (96°F). Precipitation is slightly lower in September at 68 mm (2.7 in), with rain spread over 11 days, compared to August's 80 mm (3.2 in) over 15 days. Notably, September has higher humidity at 81%, while August holds a relatively lower level at 71%. For more detailed information, you can check Han-sur-Lesse weather in August.

September and October exhibit noticeable shifts in weather patterns. In September, temperatures range from a mild 14°C (58°F) on average, peaking at a warm 33°C (92°F) during the day, while the minimum temperature dips to 2°C (35°F). This month experiences 68 mm (2.7 in) of precipitation over 11 days, with humidity at 81%. In contrast, October sees cooler overall temperatures with an average of 11°C (52°F), a maximum of 24°C (76°F), and a minimum that can drop to 0°C (33°F). The precipitation increases to 92 mm (3.6 in) over 14 days, accompanied by higher humidity levels at 88%. For a closer look at weather specifics, check out Han-sur-Lesse weather in October.

September and November present distinctly different weather patterns. September experiences a wider temperature range, with minimums around 2°C (35°F) and maxing out at 33°C (92°F), leading to an average temperature of 14°C (58°F). In contrast, November cools down significantly, with temperatures dropping to a minimum of -4°C (25°F) and an average of only 6°C (43°F), maxing out at 18°C (64°F). Precipitation levels are relatively comparable, with September receiving 68 mm (2.7 in) over 11 days and November slightly less at 65 mm (2.6 in) over 12 days. The humidity also increases from 81% in September to 91% in November, contributing to a generally colder and wetter atmosphere. For more details on November weather, you can check Han-sur-Lesse weather in November.

September and December present striking contrasts in weather conditions. In September, temperatures are more varied, ranging from a chilly 2°C (35°F) at night to a warm 33°C (92°F) during the day, with an average of 14°C (58°F). This month sees 68 mm (2.7 in) of precipitation over about 11 days, while humidity levels sit at a comfortable 81%. In contrast, December brings cooler temperatures, with nighttime lows dipping to -5°C (24°F) and daily highs averaging around 4°C (40°F), peaking at 14°C (57°F). Precipitation increases significantly to 123 mm (4.8 in) spread over approximately 20 days, accompanied by higher humidity levels of 92%. For a closer look at the weather specifics in December, you can click on this link: Han-sur-Lesse weather in December.

Compare Han-sur-Lesse's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Han-sur-Lesse

As September unfolds in Han-sur-Lesse, the weather presents a delightful transition from summer’s heat to the crispness of autumn. Temperatures soar to a maximum of 33°C (92°F), providing warm, sunny days that gradually cool off as the month progresses. Yet, don't be fooled by the warmth; the average dips to a refreshing 14°C (58°F), giving way to cooler evenings. With 81% humidity and 68 mm of precipitation spread across 11 days, September becomes a month of change, where occasional rain showers enrich the lush landscapes. This makes September distinct from the sweltering heights of summer, offering a blend of warm days and refreshing nights. For a deeper insight into the variability of weather in this charming region, explore Han-sur-Lesse Climate.