September Weather in Budapest, Hungary

Last updated: August 21, 2025

September in Budapest, Hungary ushers in a delightful mix of weather, with temperatures ranging from a refreshing 1°C (35°F) at night to a warm 33°C (91°F) during the day. The average temperature hovers around a pleasant 17°C (63°F), making it an ideal time for outdoor exploration. However, visitors should prepare for some rain, as the city experiences approximately 64 mm (2.5 in) of precipitation over 7 days in the month. With humidity levels at 63%, September offers a comfortable climate, perfect for soaking in the rich history and stunning architecture of this vibrant capital.

September Temperature in Budapest

As summer fades into autumn, September in Budapest presents a delightful transition, marked by a noticeable dip in temperatures. With minimums around 1°C (35°F) and delightful averages of 17°C (63°F), visitors can enjoy comfortable days that range up to a warm 33°C (91°F). This month strikes an ideal balance, embracing the tail end of warmth while hinting at the cooler days ahead. The mild climate encourages exploration of the city's stunning architecture and vibrant culture, making it a perfect time to experience Budapest before the chill sets in. So, whether you're savoring traditional pastries in a sun-soaked café or strolling along the beautiful Danube, September's weather invites you to indulge in all the city's charms.

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

The chart illustrates September temperature patterns in Budapest, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Budapest, 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).
JanFebMarAprMayJunJulAugSepOctNovDec323743526070727363534436
Data source: Temperature data for Budapest 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 Budapest

In September, Budapest experiences a notable shift in precipitation patterns, with an average rainfall of 64 mm (2.5 inches) spread over approximately 7 days. This marks a continuation of the wetter months following summer, paralleling the rainfall seen in July and August, but showcasing a steady decline from the peak of May's 83 mm. As the city transitions from the warmth of summer to the coolness of autumn, September’s precipitation maintains a balanced presence, reflecting the seasonal change while keeping the lush landscapes vibrant. This blend of moderate rainfall and milder days makes it a charming time to explore the city's rich culture amidst the backdrop of shifting leaves.

September Precipitation Trends in Budapest

The chart displays monthly precipitation patterns in Budapest, 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 Budapest, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec284437438374645064615059
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Budapest

As summer transitions to autumn, September in Budapest experiences a noticeable shift in humidity levels. While the city enjoys a pleasant average humidity of 63%, this represents a slight increase from the drier months of July and August, which boasted humidity levels around 60%. This gradual rise signals the approaching wetter months, as humidity begins to climb again, culminating in the much higher levels seen in October at 82%. Overall, September strikes a delicate balance, offering a refreshing atmosphere as the heat wanes and the crispness of fall begins to set in, making it an ideal time to explore the city and its stunning sights.

September Average Humidity in Budapest

This chart illustrates the average monthly humidity levels in Budapest, 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 Budapest is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%85%78%73%70%72%70%60%63%82%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Budapest

September in Budapest brings a UV Index of 6, indicating a high level of sun exposure, with a burn time of 25 minutes for those unprotected. This month marks a transition as summer wanes, showcasing a noticeable decline from the peak levels of 9 seen in the preceding months of June and July. While September still demands caution, it offers a slight reprieve compared to the intense summer sun, making it an ideal time for outdoor activities—just remember to stay sun-safe! For more insights on UV levels throughout the year, visit Budapest UV Index.

Maximum UV Index Levels in Budapest for September

The chart shows the monthly maximum UV Index (UVI) for Budapest 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 Budapest typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235679986421
Data source: Budapest 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 Budapest

As summer gracefully gives way to autumn, September in Budapest offers a delightful blend of sunshine and mild temperatures, with an impressive 333 hours of sunlight illuminating the vibrant city. This month marks a transition from the peak summer brightness of July, which boasts a remarkable 431 hours, slightly tapering off as August follows with 399 hours. Though September sees a decrease in daylight, its ample sunshine remains a cherished feature, rivaling the exuberance of spring, where March and April also showcase impressive totals of 302 and 336 hours, respectively. As daylight hours dwindle in the coming months, with October bringing just 269 hours, September shines brightly as a last hurrah for sun-seekers, wrapping the summer season in a warm embrace before the cooler months set in.

Monthly Sunshine Duration in Budapest: September Highlighted

The September sunshine duration represents the total number of hours Budapest 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.
JanFebMarAprMayJunJulAugSepOctNovDec165h215h302h336h383h418h431h399h333h269h201h185h
Data source: Budapest September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Budapest During September

As summer transitions into autumn, September in Budapest brings a notable uplift in the likelihood of sunny weather, with a 54% chance of sunshine. This marks a sweet spot following the peak months of July and August, where the sun shines down more warmly. Although chances drop slightly in October, September maintains a balance between warmth and increasing autumnal charm, making it an ideal time for outdoor activities. The pattern reveals that not only does September hold its ground with a decent probability of sun, but it also signifies a delightful melding of summer's luminescence and fall’s fresh beginnings, perfect for exploring the breathtaking beauty of Hungary's capital.

Percentage of Sunny Days in September in Budapest

The chart illustrates the percentage of sunny days in Budapest 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 Budapest experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%47%49%38%42%59%52%44%54%57%34%28%
Data source: Budapest September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Budapest in September

As September rolls into Budapest, the city begins to feel the gentle transition from the vibrant long days of summer toward the shorter daylight of autumn. With approximately 12 hours of daylight, September marks a gradual decline from August's peak of 14 hours, signaling that longer evenings are on the horizon. This month retains more daylight than October, which dips to 10 hours, but follows the upward trajectory seen from the depths of winter in January, where daylight barely stretches to 8 hours. The steady progression from 10 hours in February to 15 hours in May highlights Budapest's enchanting shift into longer days, and September captures the beauty of lingering light before the days close in for the colder months ahead.

Average Daylight Hours in Budapest for September

The chart illustrates the variation in daylight duration in Budapest throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 54m10h 15m11h 55m13h 39m15h 8m15h 53m15h 29m14h 10m12h 31m10h 48m9h 17m8h 29m
Data source: Budapest daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Budapest

As September unfolds in Budapest, the average wind speed settles at a gentle 2.6 m/s (6 mph), marking a slight increase from the calm breezes of August. This transition into fall brings a shift in the air, inviting a refreshing coolness after the summer heat. Notably, September's winds remain fairly consistent with those of the preceding months, hovering in the range typical for late summer and early autumn. As the city prepares for the festive colors of autumn, this mild wind provides a soft whisper of change, hinting at the vibrant transformations that lie ahead.

Average September Wind Speed in Budapest

The chart displays monthly wind speed patterns in Budapest, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.02.93.23.42.32.82.52.6 m/s2.82.73.0
Data source: Budapest September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Budapest Compares to Other Months

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

September weather in Budapest features a wider temperature range, with minimums around 1°C (35°F) and maximums peaking at 33°C (91°F), averaging 17°C (63°F). This month experiences a fair amount of precipitation, totaling 64 mm (2.5 in) over approximately 7 days, coupled with a moderate humidity level of 63%. In contrast, January offers much colder conditions, with temperatures ranging from a chilling -18°C (1°F) to a maximum of 13°C (57°F), averaging around 0°C (32°F). Although January is generally drier than September, it has high humidity at 89%, with total precipitation of 28 mm (1.1 in) occurring over 6 days. For more detailed insights into January weather in the city, check out Budapest weather in January.

In September, Budapest experiences a significant range in temperatures, with a minimum of 1°C (35°F) and a maximum reaching up to 33°C (91°F), resulting in an average of 17°C (63°F). The month receives about 64 mm (2.5 in) of precipitation over 7 days, accompanied by a moderate humidity of 63%. In contrast, February is considerably colder, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 18°C (65°F), averaging just 3°C (38°F). Although February sees slightly less precipitation at 44 mm (1.7 in) over 8 days, the humidity is notably higher at 85%. For more detailed insights, check out this link: Budapest weather in February.

The weather in September generally presents a wider range in temperatures, with a minimum of 1°C (35°F) and a maximum reaching up to 33°C (91°F), averaging around 17°C (63°F). In contrast, March is considerably colder, with temperatures ranging from a minimum of -15°C (5°F) to a maximum of 22°C (73°F), with an average of only 6°C (43°F). While September experiences more precipitation at 64 mm (2.5 in), March has relatively lower rainfall at 37 mm (1.4 in). Interestingly, both months see about seven days of precipitation, though March is characterized by higher humidity levels at 78% compared to September’s 63%. For more specific details, you can check out Budapest weather in March.

September and April present quite contrasting weather conditions. In September, temperatures can range from a chilly 1°C (35°F) at night to a warm 33°C (91°F) during the day, with an average of 17°C (63°F). The month sees about 64 mm (2.5 in) of precipitation over approximately 7 days, resulting in a humidity level of 63%. In contrast, April experiences cooler temperatures, with minimums dropping to -4°C (24°F) and a maximum of 28°C (83°F), averaging 11°C (53°F). Although it has slightly lower precipitation at 43 mm (1.7 in) over 8 days, humidity is higher at 73%. For more detailed insights into April weather, you can check Budapest weather in April.

In September, the weather tends to be warmer than in May, with average temperatures reaching 17°C (63°F) and high peaks of up to 33°C (91°F), while May sees a slightly cooler average of 16°C (61°F) with a maximum of 30°C (86°F). Precipitation levels are higher in May, totaling 83 mm (3.3 in) over 13 days, compared to September's 64 mm (2.5 in) over just 7 days. Additionally, humidity levels are a bit higher in May at 70%, while September's humidity stands at 63%. For more information on May weather in Budapest, check out Budapest weather in May.

When comparing the weather in September and June, notable differences emerge. September features a wider temperature range with minimums dropping to 1°C (35°F) and maximums reaching up to 33°C (91°F), while June's temperatures are more stable, ranging from a minimum of 8°C (46°F) to a maximum of 37°C (98°F). Precipitation is slightly higher in June, with an average of 74 mm (2.9 in) falling over 11 days compared to September's 64 mm (2.5 in) over just 7 days. Additionally, June tends to be a bit more humid, at 72%, compared to September's 63%. For more details on June weather, check out Budapest weather in June.

When comparing the weather in July and September, it’s clear that July experiences generally warmer temperatures, with a minimum of 7°C (46°F) and an average of 22°C (72°F), peaking at 36°C (97°F). In contrast, September has a cooler temperature range, with a minimum of just 1°C (35°F) and an average of 17°C (63°F), rising to a maximum of 33°C (91°F). Both months receive the same amount of precipitation at 64 mm (2.5 in), though July sees slightly more rainy days (9) compared to September's 7 days. Furthermore, July has a higher humidity level at 70%, while September records 63%. For more information on July weather, you can check Budapest weather in July.

When comparing the weather between August and September, there are notable shifts in temperature and precipitation. In August, temperatures are generally warmer, with a minimum of 8°C (47°F), an average of 23°C (73°F), and a maximum reaching up to 38°C (100°F). This month also sees slightly less precipitation, with 50 mm (2.0 in) over 8 days and humidity at 60%. In contrast, September brings cooler temperatures, with a minimum of 1°C (35°F) and an average of 17°C (63°F), peaking at 33°C (91°F). This month experiences a bit more rainfall, totaling 64 mm (2.5 in) over 7 days, while humidity increases slightly to 63%. For more detailed information on August weather, refer to Budapest weather in August.

In September, temperatures in Budapest range from a minimum of 1°C (35°F) to a maximum of 33°C (91°F), with an average of 17°C (63°F). The month sees about 64 mm (2.5 in) of precipitation over approximately 7 days, making the weather generally warm and pleasant with a humidity level of 63%. In contrast, October experiences cooler conditions, with temperatures dropping to a minimum of -1°C (30°F) and peaking at 25°C (77°F), leading to an average temperature of 12°C (53°F). Although precipitation levels remain similar at 61 mm (2.4 in) over 7 days, the humidity rises to 82%, creating a noticeably different and more damp atmosphere. For more details, check out the Budapest weather in October.

September generally offers warmer and more variable weather compared to November. With average temperatures hovering around 17°C (63°F) and maximums that can reach up to 33°C (91°F), September is often characterized by pleasant, late-summer conditions. In contrast, November brings a significant drop in temperatures, with an average of only 6°C (44°F) and nighttime lows that can dip to -6°C (22°F), marking the onset of winter chill. While September experiences around 64 mm (2.5 in) of precipitation over 7 days, November sees slightly less rainfall, at 50 mm (2.0 in) across 9 days, but with much higher humidity at 89%. For more details, you can visit Budapest weather in November.

September and December present contrasting weather patterns. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 33°C (91°F), with an average of 17°C (63°F), making it a much warmer month overall. The month experiences about 64 mm (2.5 in) of precipitation over roughly 7 days, with humidity levels at a comfortable 63%. In contrast, December sees much colder temperatures, with a minimum of -8°C (17°F) and a maximum of 15°C (60°F), resulting in an average temperature of only 2°C (36°F). Despite slightly lower precipitation at 59 mm (2.3 in), it has a higher frequency of rainy days, occurring on 11 days and accompanied by a chilly humidity level of 90%. For more details, check out Budapest weather in December.

Compare Budapest's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Budapest

As September unfolds in Budapest, the city transitions into a unique blend of summer warmth and early autumn chill. With average temperatures hovering around a comfortable 17°C, the air carries a hint of crispness, especially as nights can dip to a brisk 1°C. This month stands out, marked by relatively low precipitation compared to the wetter summer months, yet the occasional rain may grace about a week of the month. The humidity, while present, is generally manageable, making for invigorating days perfect for exploring the city’s rich history and vibrant culture. To learn more about Budapest's weather patterns throughout the year, visit the detailed Budapest Climate.