September Weather in Dordrecht, Netherlands

Last updated: August 27, 2025

In September, Dordrecht, Netherlands, experiences a blend of mild and occasionally warm weather, with maximum temperatures reaching up to 31°C (89°F) while averaging around 15°C (60°F). The month showcases a notable minimum temperature of 3°C (38°F), highlighting the cool nights characteristic of early autumn. Residents and visitors can expect approximately 66 mm (2.6 in) of precipitation over about 11 days, contributing to the region's lush landscapes. With an average humidity level of 82%, September's climate offers a refreshing yet damp atmosphere, perfect for enjoying the scenic beauty of this historic city.

September Temperature in Dordrecht

In September, Dordrecht, Netherlands, ushers in the early whispers of autumn with temperatures that showcase a gentle decline from the summer heat. The month begins with a minimum of 3°C (38°F), a comfortable average of 15°C (60°F), and peaks at a pleasant 31°C (89°F), making it a great time to enjoy outdoor activities. As the month progresses, the warmth gradually softens, hinting at the transitions to come. With its vibrant scenery and moderate climate, September in Dordrecht offers a perfect balance of warmth and coolness, inviting both locals and visitors to revel in the beauty of early fall.

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

The chart illustrates September temperature patterns in Dordrecht, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dordrecht, 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).
JanFebMarAprMayJunJulAugSepOctNovDec404145505664656659544642
Data source: Temperature data for Dordrecht 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 Dordrecht

In September, Dordrecht experiences a relatively balanced climate with a precipitation total of 66 mm (2.6 in) spread over 11 days. This month marks a slight decline in rainfall compared to August’s peak of 81 mm (3.2 in), signaling a transition toward the wetter autumn months. The precipitation frequency remains steady, maintaining an average of about two to three rainy days per week, which is typical as the region prepares for the more pronounced rainfall of October, with its higher totals of 88 mm (3.4 in). Overall, September serves as a gentle reminder of summer's end, offering a mix of damp days and occasional bright spells.

September Precipitation Trends in Dordrecht

The chart displays monthly precipitation patterns in Dordrecht, 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 Dordrecht, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec606771406473758166885488
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dordrecht

As summer fades into autumn, September in Dordrecht, Netherlands, experiences a slight increase in humidity, settling at 82%. This marks a gentle shift from the drier months of July and August, where humidity levels dipped to their lowest at 80% and 76%, respectively. The transition into September often brings a refreshing coolness, balancing the warmth of summer with gradually rising moisture levels that set the stage for the wetter autumn months ahead. As October approaches, humidity is expected to rise again, making September a pivotal point in the year where the lingering warmth embraces the softening humidity, preparing for the more humid days of fall.

September Average Humidity in Dordrecht

This chart illustrates the average monthly humidity levels in Dordrecht, 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 Dordrecht 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 Dordrecht

As autumn begins to take hold in Dordrecht, September brings a moderate UV Index of 5, indicating a noticeable shift from the intensity of summer months. With a burn time of 30 minutes, it's essential to remain mindful of sun exposure during this time. The transition from summer's high and very high UV levels in July and August reflects a gradual decline, making September a more temperate month for outdoor activities. However, with the UV Index still hovering in the moderate range, sun protection remains important. To learn more about daily variations and recommendations, check out the detailed report on the Dordrecht UV Index.

Maximum UV Index Levels in Dordrecht for September

The chart shows the monthly maximum UV Index (UVI) for Dordrecht 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 Dordrecht typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Dordrecht 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 Dordrecht

September in Dordrecht, Netherlands, gracefully transitions from the sun-drenched days of summer to the crispness of autumn, boasting an impressive 324 hours of sunshine. This month marks a gentle tapering from the peak of July’s 415 hours and August’s 390 hours, yet still offers a generous glow that illuminates the city's stunning architecture and scenic canals. As the days grow shorter, the contrast between the swelling brightness of May and June—both exceeding 400 hours—compared to the dwindling light in the colder months of late autumn, creates a vivid tapestry of seasonal change. This blend of lingering warmth and early autumn chill makes September a captivating time to experience Dordrecht’s outdoor charm.

Monthly Sunshine Duration in Dordrecht: September Highlighted

The September sunshine duration represents the total number of hours Dordrecht 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.
JanFebMarAprMayJunJulAugSepOctNovDec119h202h275h353h404h405h415h390h324h243h192h138h
Data source: Dordrecht September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dordrecht During September

In Dordrecht, Netherlands, September sees a 32% chance of sunny weather, marking a slight decline from the peak summer months. While the likelihood of sunny days decreases compared to the vibrant heights of April’s 41%, it maintains a moderately pleasant appeal that lingers from the warmer season. This transitional month hints at the crispness of autumn ahead but still offers opportunities for sunshine, making it a delightful time for outdoor activities. As the year progresses into the cooler months, with October dropping to 29% and November further declining to 22%, September remains a sweet spot for enjoying the last whispers of summer.

Percentage of Sunny Days in September in Dordrecht

The chart illustrates the percentage of sunny days in Dordrecht 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 Dordrecht experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%27%36%42%31%37%33%33%32%29%23%17%
Data source: Dordrecht September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dordrecht in September

As summer fades in Dordrecht, the daylight duration in September sees a gentle decline, offering 12 hours of sunlight each day. This marks a shift from the peak brightness of June and July, which basked in 16 hours of daylight, and mirrors the gradual decrease that begins in the months that follow, leading down to only 8 hours by November. September's sunlight still reflects the lingering warmth of summer, bridging the gap to the cooler autumn months, while showcasing a more balanced day length compared to the longer summer evenings and the shorter, more subdued light of the winter season ahead.

Average Daylight Hours in Dordrecht for September

The chart illustrates the variation in daylight duration in Dordrecht throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 22m9h 57m11h 55m13h 55m15h 39m16h 34m16h 5m14h 31m12h 35m10h 36m8h 49m7h 52m
Data source: Dordrecht daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Dordrecht

As September rolls into Dordrecht, the wind begins to soften, with an average speed of just 3.1 m/s (7 mph)—the calm before the bustling autumn months. This gentle breeze marks a notable decline from the lively winds of the earlier summer months, where speeds hovered around 3.4 m/s to 4.1 m/s. The trend showcases a transition, as the invigorating summer gales give way to a more serene atmosphere, creating perfect conditions for cozy strolls along the historic canals. In contrast, as winter approaches, October brings a return to stronger gusts, reminding us that the dynamic character of the Dordrecht winds is ever-present.

Average September Wind Speed in Dordrecht

The chart displays monthly wind speed patterns in Dordrecht, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.44.23.84.13.03.43.73.1 m/s4.43.44.1
Data source: Dordrecht September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Dordrecht Compares to Other Months

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

September and January present strikingly different weather patterns. In September, temperatures range from a mild minimum of 3°C (38°F) to a warm maximum of 31°C (89°F), with an average of 15°C (60°F), making it a transitional month as summer wanes. It experiences about 66 mm (2.6 in) of precipitation over approximately 11 days, while humidity averages 82%. In contrast, January is much colder, with temperatures dipping to a minimum of -8°C (19°F) and an average of just 4°C (40°F), peaking at 14°C (58°F). Precipitation is slightly lower at 60 mm (2.3 in) over 12 days, with humidity peaking at 91%. For a detailed look at January's climate, check out Dordrecht weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 31°C (89°F), with an average of 15°C (60°F). The month experiences relatively high humidity at 82% and receives about 66 mm (2.6 in) of precipitation over 11 days. In contrast, February is much colder, with temperatures ranging from a frigid -10°C (14°F) to a maximum of 18°C (65°F), averaging around 5°C (42°F). Despite similar precipitation levels at 67 mm (2.6 in) over 12 days, February sees slightly higher humidity at 89%. For more detailed insights, you can check Dordrecht weather in February.

In comparing the weather between September and March, we see distinct differences in temperature and precipitation. September boasts a more comfortable temperature range, with a minimum of 3°C (38°F) and a maximum of 31°C (89°F), averaging around 15°C (60°F). It experiences relatively less rainfall, with 66 mm (2.6 in) spread over 11 days and a humidity level of 82%. In contrast, March tends to be much cooler, with temperatures plummeting to a minimum of -7°C (19°F) and reaching a maximum of 22°C (71°F), averaging only 7°C (45°F). It also sees slightly more precipitation, 70 mm (2.8 in) over 15 days, and a higher humidity level of 87%. For those interested in a detailed look at March weather, you can check out Dordrecht weather in March.

When comparing the weather in September and April, notable differences emerge in temperature and precipitation patterns. September typically experiences a mild temperature range, with minimums around 3°C (38°F) and maximums reaching up to 31°C (89°F), leading to an average of 15°C (60°F). In contrast, April starts cooler, with temperatures dipping to a minimum of -3°C (26°F) and averaging around 10°C (50°F), while maximums peak at 28°C (82°F). Precipitation is slightly higher in September at 66 mm (2.6 in) over 11 days, compared to April's 40 mm (1.6 in) over 9 days. Humidity levels are fairly comparable, with September at 82% and April at 85%. For more detailed insights on April weather, visit Dordrecht weather in April.

When comparing the weather in September and May, both months exhibit a similar temperature range, with maximums reaching around 31°C (88-89°F). September has a slightly higher average temperature of 15°C (60°F) compared to May's 14°C (57°F), yet May starts off with a lower minimum temperature of 1°C (35°F) versus September's 3°C (38°F). Precipitation levels are comparable as well, with September receiving 66 mm (2.6 in) over 11 days and May having 64 mm (2.5 in) over 12 days. Both months also share a high humidity of 82%, contributing to a similar feel in the air. For more insights on May weather, you can check Dordrecht weather in May.

When comparing the weather in September and June, we can see some notable differences. September features a broader temperature range, with minimums dropping to 3°C (38°F) and maximums reaching up to 31°C (89°F), while June has milder lows of 8°C (47°F) and highs peaking at 32°C (90°F). Interestingly, both months experience high humidity levels of 82%, contributing to a muggy atmosphere. In terms of precipitation, September receives slightly less rain, averaging 66 mm (2.6 in) over 11 days, compared to June's 73 mm (2.9 in) over 10 days. If you would like to learn more about the specifics of June weather, you can visit Dordrecht weather in June.

The weather in September presents a more varied temperature range compared to July, with minimums dipping to 3°C (38°F) and maximums reaching 31°C (89°F), while July experiences relatively higher temperatures, ranging from a minimum of 8°C (47°F) to a maximum of 38°C (101°F). Both months exhibit a similar level of humidity, with September at 82% and July slightly lower at 80%. Precipitation is more pronounced in July, with a total of 75 mm (3.0 in) across 13 days, compared to September's 66 mm (2.6 in) over 11 days. For more detailed insights about weather during July, please refer to Dordrecht weather in July.

In comparing the weather of September to August, September tends to be cooler with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 31°C (89°F), compared to August's milder temperatures of 8°C (48°F) to 34°C (93°F). Although September has slightly less precipitation at 66 mm (2.6 in) over 11 days, it is still quite humid with a relative humidity of 82%, compared to August's lower humidity of 76%. For more detailed information about August weather, you can visit Dordrecht weather in August.

September and October present contrasting weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 31°C (89°F), with an average of 15°C (60°F). The month experiences about 66 mm (2.6 in) of precipitation over 11 days and maintains a humidity level of 82%. In contrast, October sees cooler temperatures, with a minimum of 2°C (36°F), an average of 12°C (54°F), and a maximum of 26°C (78°F). The month is wetter, with 88 mm (3.4 in) of rain spread over 14 days, and humidity rises slightly to 89%. For more detailed insights, you can check Dordrecht weather in October.

In September, the weather is generally warmer, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 31°C (89°F) and an average of 15°C (60°F). With 66 mm (2.6 in) of precipitation over 11 days, it remains relatively humid at 82%. In contrast, November ushers in cooler temperatures, with a minimum of -2°C (29°F), an average of 8°C (46°F), and a maximum of 19°C (66°F). The month sees slightly less precipitation at 54 mm (2.1 in) over 12 days, but humidity increases to 92%. For more details on November weather, visit Dordrecht weather in November.

In September, weather conditions are generally warmer and more variable, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 31°C (89°F) and an average of 15°C (60°F). The month sees about 66 mm (2.6 in) of precipitation over approximately 11 days, with humidity levels around 82%. In contrast, December brings much cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 14°C (58°F), averaging only 6°C (42°F). This month also experiences higher precipitation, totaling 88 mm (3.5 in) spread over approximately 16 days, accompanied by a slight increase in humidity to 92%. For a more detailed overview, you can check Dordrecht weather in December.

Compare Dordrecht's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Dordrecht

September in Dordrecht heralds a transitional period, where the warmth of summer begins to ebb, making way for the crispness of autumn. With average temperatures hovering around a comfortable 15°C (60°F) and maximums occasionally soaring up to 31°C (89°F), it strikes a unique balance between the lingering heat of late summer and the cooler days to come. The month is characterized by relatively high humidity levels at 82%, alongside a noteworthy 66 mm (2.6 in) of rainfall over approximately 11 days, adding a touch of unpredictability to the weather. This fluctuation sets September apart from neighboring months, inviting both warm days perfect for outdoor activities and the occasional rainy spell ideal for cozy indoor pursuits. For a deeper understanding of the climate nuances in Dordrecht, explore Dordrecht Climate.