Last updated: August 27, 2025
Experience the vibrant September weather in Amsterdam, Netherlands, where temperatures can soar to a maximum of 30°C (87°F), while an average temperature settles comfortably around 15°C (59°F). As the month unfolds, the city experiences cooler evenings with lows hitting 3°C (38°F). Visitors should prepare for occasional rain, with approximately 78 mm (3.1 in) of precipitation spread over 11 days, contributing to an overall humidity level of 83%. Embrace the dynamic atmosphere of autumn as the city transitions, inviting both exploration and cozy moments alike.
As September arrives in Amsterdam, temperatures begin to transition into a more mild and inviting atmosphere, marking a delightful end to summer. With a minimum temperature of 3°C (38°F) and an average of 15°C (59°F), the city experiences a comfortable warmth that's perfect for enjoying outdoor cafes and scenic waterways. Afternoon highs can reach a pleasant 30°C (87°F), occasionally luring locals and tourists alike into the parks for leisurely strolls or picnics while the leaves start to hint at autumn colors. This month beautifully blends the vestiges of summer's heat with the crispness of fall, making it an ideal time to explore the vibrant streets and canals of Amsterdam, where the cultural richness thrives against a backdrop of changing seasons.
September in Amsterdam brings a moderate 78 mm (3.1 in) of precipitation over approximately 11 days, maintaining the city's characteristic coolness as summer gives way to autumn. This level of rainfall is slightly less than August's peak of 85 mm (3.3 in), yet it remains consistent with the late summer pattern of increasing precipitation. As the month progresses, the city experiences a gradual transition, embracing the shifting seasons with the impending dampness of October, typically the wettest month, where rainfall rises to 88 mm (3.5 in). This trend illustrates how Amsterdam's climate fosters a lush, green environment, making it an enchanting destination even as the days grow shorter and the temperatures begin to dip.
As summer transitions to autumn in Amsterdam, September experiences a slight uptick in humidity, settling at 83%—a refreshing shift from the drier air of the preceding months. This month stands out by reflecting the city's typical, more humid winter conditions, which hover around 86% in October and 87% in November. While September’s humidity is lower than the peak levels of the winter months, it indicates a gradual return to the dampness that is characteristic of Amsterdam. The overall trend shows a consistent humidity pattern throughout the year, with a clear drop from early summer peaks, yet September serves as a gentle reminder of the moisture-laden winds on the horizon as the seasons change.
As summer fades into autumn, Amsterdam experiences a noticeable shift in UV exposure. In September, the UV Index sits at 5, categorizing the exposure as moderate with a burn time of 30 minutes for unprotected skin. This decrease from the intensities seen in June and July, where levels peaked at 8 in the very high range, provides a more comfortable yet still significant sun exposure for outdoor activities. With the sun's strength easing as the month progresses into autumn, it's essential to remain mindful of skin protection, especially during midday. For further insights on UV levels throughout the year, check the dedicated Amsterdam UV Index.
UV Risk Categories
As the summer fades, September in Amsterdam brings a delightful blend of lingering warmth and golden sunshine, with 326 hours illuminating the city, marking a graceful transition from the sun-drenched days of summer. This month, while shorter than the peak of July's 423 hours, still boasts a generous amount of sunlight that invites both locals and tourists to explore the charming canals and bustling streets. However, a noticeable decline begins as October approaches, reminding us of the shifting seasons with its 239 hours of daylight. This gradual decrease signals the departure of summer vibes but allows for a serene and reflective atmosphere, perfect for enjoying Amsterdam's cozy cafes and vibrant fall festivities.
In September, Amsterdam experiences a 32% chance of sunny weather, which is on par with the summer months of July and August. This suggests that while the sunny days of summer are fading, there's still a delightful opportunity for clear skies and pleasant temperatures as autumn approaches. Interestingly, sunny weather in September maintains a higher likelihood compared to earlier months like May and June, which have 32% and 38% chances respectively but see more variability in conditions. Overall, September offers a charming mix of remaining warmth and potential sunshine, making it a lovely time to explore this vibrant city before the cooler, cloudier months set in.
As September arrives in Amsterdam, daylight begins to gradually wane, offering about 12 hours of sunlight—a gentle transition from the long, bright days of summer. This month marks a noticeable shift, with daylight duration dipping from the 14 hours enjoyed in August, paving the way for the cozy fall atmosphere. Notably, throughout the year, the trend highlights a steady increase in daylight from the stark 8 hours in January, peaking at 16 hours during the summer months of June and July. As autumn settles in, the gradual decline in sunlight hours serves as a reminder of the seasonal cycle, culminating in shorter days leading into winter. The charm of Amsterdam in September, with its blend of fading sunlight and early autumn hues, invites both locals and visitors to savor the beauty of the changing season.
As summer fades into autumn, Amsterdam experiences a gentle shift in its winds during September. The average wind speed drops to 3.3 m/s (7 mph), marking one of the year’s quieter months in terms of breezy conditions. Following the livelier winds of the preceding summer months, this transition is palpable, creating a serene atmosphere ideal for leisurely strolls along the picturesque canals. In contrast to the gusty October that follows, which rebounds to an average of 4.7 m/s (10 mph), September's calmer breezes invite both locals and visitors to savor the lingering warmth of the season, making it a delightful time to soak in the charm of the city.
Weather in Amsterdam varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Amsterdam, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures in Amsterdam range from a minimum of 3°C (38°F) to a comfortable average of 15°C (59°F), peaking at a warm 30°C (87°F), which makes it a much milder month compared to January. September also experiences higher precipitation levels, with 78 mm (3.1 in) of rain over 11 days, while January sees less rainfall at 56 mm (2.2 in) across 12 days. Additionally, the humidity in September is slightly lower at 83% compared to 87% in January, resulting in a crisper, colder environment during the first month of the year. For more details about January's weather, you can check Amsterdam weather in January.
September and February showcase contrasting weather patterns. In September, temperatures range from a mild 3°C (38°F) to a warm 30°C (87°F), with an average of 15°C (59°F). The month experiences about 78 mm (3.1 in) of precipitation over approximately 11 days, accompanied by a humidity level of 83%. In contrast, February brings colder conditions, with temperatures dipping as low as -10°C (14°F) and peaking at 18°C (65°F), averaging around 5°C (41°F). Although February sees slightly less precipitation at 68 mm (2.7 in) over 12 days, humidity is higher at 87%. For more details on the February weather, check out Amsterdam weather in February.
When comparing the weather in September and March, distinct differences emerge. September tends to be much warmer, with average temperatures around 15°C (59°F) and highs reaching up to 30°C (87°F), while March sees average temperatures of only 7°C (44°F) and max temperatures up to 21°C (71°F). Precipitation is relatively similar, with September receiving 78 mm over 11 days, compared to March's 70 mm over 15 days. Additionally, both months have high humidity levels, with September at 83% and March slightly higher at 86%. For more detailed insights, you can check Amsterdam weather in March.
The weather in September typically features a wider temperature range, with minimums around 3°C (38°F) and maximums reaching up to 30°C (87°F), while April tends to be cooler, with minimums dropping to -2°C (28°F) and maximums peaking at 27°C (81°F). Despite being a transition month, September averages a warmer 15°C (59°F), compared to April's average of 10°C (49°F). Precipitation is more abundant in September, totaling 78 mm (3.1 in) over 11 days, whereas April has less rainfall at 45 mm (1.8 in) across 9 days. Both months exhibit high humidity, around 83% in September and 85% in April, creating a damp feel in the air. For more detailed insights, you can visit Amsterdam weather in April.
In comparing the weather of September and May, both months exhibit a range of temperatures but with distinct characteristics. September experiences slightly higher average and maximum temperatures, with a mild average of 15°C (59°F) and a peak of 30°C (87°F). This month also sees more precipitation, totaling 78 mm (3.1 in) over about 11 days, contributing to a humid atmosphere with an average humidity of 83%. In contrast, May has a lower average temperature of 13°C (56°F) and a comparable maximum of 31°C (88°F), although it receives less rainfall at 66 mm (2.6 in) over 13 days, resulting in a slightly drier feel. For a closer look at the specifics of May weather, you can check Amsterdam weather in May.
September and June present distinct weather patterns, with notable differences in temperature and humidity. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 30°C (87°F), averaging around 15°C (59°F). This month experiences an average humidity of 83% and sees precipitation over 11 days, totaling 78 mm (3.1 in). In contrast, June has milder temperatures, with a minimum of 8°C (46°F) and a maximum of 32°C (91°F), averaging 17°C (64°F). The humidity in June is slightly lower at 81%, while it also experiences similar precipitation levels of 78 mm (3.1 in) over 12 days. For more details, you can check Amsterdam weather in June.
September weather tends to be milder compared to July, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 30°C (87°F) and an average of 15°C (59°F). In contrast, July experiences higher temperatures, with a minimum of 8°C (47°F) and a maximum peak of 38°C (101°F), averaging around 18°C (65°F). Both months have similar precipitation levels, with September receiving 78 mm (3.1 in) over 11 days, while July has slightly less at 74 mm (2.9 in) over 13 days. Humidity is also noticeable in both months, with September at 83% and July at 80%. For more detailed information on the hot July weather, check out Amsterdam weather in July.
In comparing the weather between September and August, September tends to showcase more variability in temperature, with a minimum of 3°C (38°F) compared to August's warmer minimum of 8°C (46°F). The average temperature drops to 15°C (59°F) in September, from August's higher average of 18°C (65°F), leading to a cooler feel overall. Additionally, while August has slightly more precipitation at 85 mm (3.3 in) over 15 days, September sees a similar amount of rainfall at 78 mm (3.1 in) but spread over fewer days, amounting to 11. Humidity is higher in September at 83%, compared to 78% in August, contributing to a more muggy atmosphere as the season transitions. For a deeper dive into August's weather specifics, you can check out Amsterdam weather in August.
September and October present distinct shifts in weather patterns. In September, temperatures typically range from a minimum of 3°C (38°F) to a maximum of 30°C (87°F), with an average of 15°C (59°F). This month experiences around 78 mm (3.1 in) of precipitation over 11 days and maintains a humidity level of 83%.
In contrast, October sees cooler temperatures, with a minimum of 2°C (35°F), an average of 12°C (54°F), and a maximum of 25°C (78°F). Precipitation increases slightly to 88 mm (3.5 in) over 14 days, while humidity rises modestly to 86%. For more detailed information, you can check Amsterdam weather in October.
September and November present notably different weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 30°C (87°F), with an average of 15°C (59°F). The month experiences about 78 mm (3.1 in) of precipitation over 11 days, and humidity hovers around 83%. In contrast, November sees cooler conditions, with temperatures dropping to a minimum of -2°C (28°F) and a maximum of 18°C (65°F), averaging just 8°C (46°F). Precipitation decreases to 52 mm (2.0 in) over the same number of days, while humidity slightly increases to 87%. For more details, check out Amsterdam weather in November.
September and December present contrasting weather experiences. In September, temperatures range from a mild 3°C (38°F) to a warm 30°C (87°F), with an average of 15°C (59°F). The month sees around 78 mm (3.1 in) of rainfall over about 11 days, coupled with a humidity level of 83%. Conversely, December ushers in a chillier environment, with temperatures ranging from a low of -4°C (24°F) to a high of 13°C (56°F), averaging 6°C (42°F). Rainfall increases slightly to 87 mm (3.4 in), and precipitation occurs on approximately 16 days, with humidity slightly higher at 86%. For a closer look at December's weather, you can visit Amsterdam weather in December.
As September rolls in, Amsterdam transitions into a unique blend of summer's warmth and autumn's chill. With daytime temperatures peaking at a pleasant 30°C, the city still basks in the aftermath of summer, yet evenings can be considerably cooler as they dip towards 3°C. This month often experiences increased humidity levels, reaching around 83%, and a noticeable amount of rainfall spread across 11 days. Therefore, while the warm days invite outdoor adventures, the occasional showers and brisk nights remind locals and visitors alike that fall is on the horizon. For a deeper insight into what to expect throughout the year, be sure to explore the complete Amsterdam Climate page.