September Weather in Vrchlabi, Czech Republic

Last updated: April 1, 2025

September in Vrchlabi, Czech Republic, showcases a delightful blend of late summer warmth and the crisp arrival of autumn. With maximum temperatures reaching 27°C (80°F), the month invites outdoor enthusiasts to explore the stunning landscapes. The average temperature settles at a comfortable 12°C (54°F), while nights can dip to a cool -2°C (28°F), reminding visitors that autumn is just around the corner. Rainfall is a significant feature this month, with 94 mm (3.7 in) of precipitation spread over 14 days, contributing to the lush greenery of the region. Expect humidity levels around 72%, adding to the refreshing atmosphere as the natural beauty of Vrchlabi transitions into fall.

September Temperature in Vrchlabi

In Vrchlabi, Czech Republic, September marks a notable transition in temperatures as summer wanes and autumn approaches. The month showcases a minimum temperature of -2°C (28°F) and an average that hovers around 12°C (54°F), providing a refreshing break from the heat of summer. The max temperature climbs to a comfortable 27°C (80°F), allowing for pleasant outdoor activities while the leaves begin to change. Compared to the preceding summer months, September's cooler evenings signal the onset of fall, yet it still retains warmth during the day, making it an ideal time for exploring the beautiful landscapes of Vrchlabi. This gradual shift in climate not only highlights the area's variability but also invites visitors to experience the charm of this picturesque region bathed in autumn hues.

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

The chart illustrates September temperature patterns in Vrchlabi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec273034435161616254463730
Data source: Temperature data for Vrchlabi 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 Vrchlabi

In September, Vrchlabí experiences a notable shift in weather patterns as it transitions from the summer months. With 94 mm (3.7 in) of precipitation over approximately 14 days, the month exhibits a balanced rainfall level compared to earlier summer peaks. This marks a decrease from the 141 mm of August but remains significant enough to keep the landscape lush and vibrant. As autumn approaches, this moderate rainfall paves the way for the changing colors of the foliage, embodying the typical ebb and flow of Czech weather. Overall, September's precipitation continues the trend of fluctuating rainfall throughout the year, providing a refreshing contrast to the drier days ahead in October and November.

September Precipitation Trends in Vrchlabi

The chart displays monthly precipitation patterns in Vrchlabi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84797561115120116141951035897
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vrchlabi

In September, Vrchlabi experiences a noticeable shift in humidity, registering at 72%. This marks a mid-range level compared to the preceding summer months, where humidity hovered around 61% to 65%. As autumn sets in, there’s a gradual increase from the drier summer conditions, but the air remains much less humid than the peak winter months, which can soar to 89% in January. This transition hints at the gradual approach of colder seasons, with October showing a significant rise to 80%, signaling the onset of the dampness typical of the Czech winter. Overall, September serves as a pivotal point, bridging the steadily declining summer humidity and the refinements of crisp autumn air.

September Average Humidity in Vrchlabi

This chart illustrates the average monthly humidity levels in Vrchlabi, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%84%78%63%63%61%65%72%80%87%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vrchlabi

As the seasons shift in Vrchlabi, September heralds the end of summer with a UV Index of 6, marking it as a time of high sun exposure. This is a slight dip from the peak summer months, yet it still demands caution, with a burn time of just 25 minutes for unprotected skin. The trend throughout the year shows a gradual increase in UV radiation from the lower indexes of winter to the very high levels experienced in June and July. As autumn approaches, it's essential to stay vigilant and protect your skin, especially during the sunny September days. For more detailed insights on UV levels throughout the year, check out the Vrchlabi UV Index.

Maximum UV Index Levels in Vrchlabi for September

The chart shows the monthly maximum UV Index (UVI) for Vrchlabi 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.
JanFebMarAprMayJunJulAugSepOctNovDec235678876421
Data source: Vrchlabi 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 Vrchlabi

In September, Vrchlabi basks in 312 hours of sunshine, signaling a gentle decline from the summer peak, yet still offering abundant opportunities for outdoor exploration. The month showcases a transition, as daylight begins to wane after the abundant 428 hours enjoyed in July. Despite this decrease, September remains one of the sunniest months of the year, allowing the vibrant hues of autumn to unfold beautifully. As temperatures cool down, locals and visitors alike can appreciate the serene charm of this Czech gem, highlighted by the crisp air and golden landscapes, making it a perfect time for hiking or leisurely strolls amidst nature’s palette.

Monthly Sunshine Duration in Vrchlabi: September Highlighted

The September sunshine duration represents the total number of hours Vrchlabi 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.
JanFebMarAprMayJunJulAugSepOctNovDec118h203h278h333h383h408h428h382h312h256h186h142h
Data source: Vrchlabi September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Vrchlabi During September

In Vrchlabi, Czech Republic, September offers a refreshing transition into autumn as the likelihood of sunny weather stands at 33%. This percentage marks a slight increase from the summer months of July and August, both of which hover around the mid-20s for sunshine chance. As the year progresses from the more sun-drenched months of June and March—with chances peaking at 34% and 38%, respectively—September presents a comfortable medium, making it a delightful time to experience the region's natural beauty. Although sunny days become less frequent as winter approaches, the early autumn sun can still grace visitors with pleasant days perfect for outdoor exploration.

Percentage of Sunny Days in September in Vrchlabi

The chart illustrates the percentage of sunny days in Vrchlabi 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 Vrchlabi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%24%38%29%27%35%28%24%33%34%14%15%
Data source: Vrchlabi September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Vrchlabi in September

As September rolls in, Vrchlabi, Czech Republic, witnesses a gentle transition in daylight, with 12 hours of sunlight illuminating the landscape. This marks a noticeable shift from the vibrant long days of summer, peaking at 16 hours in June, to the shorter, crisp days of autumn. Following the warmth of August's 14 hours, September serves as a bridge, gradually dimming our evening skies and hinting at the approaching seasons. The daylight hours will continue to wane, reminiscent of the 8 hours seen in the heart of winter, but for now, this month offers a balanced mix of light, perfect for those wishing to embrace the changing scenery and cooler temperatures.

Average Daylight Hours in Vrchlabi for September

The chart illustrates the variation in daylight duration in Vrchlabi throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 55m13h 51m15h 32m16h 25m15h 57m14h 26m12h 34m10h 39m8h 55m8h
Data source: Vrchlabi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Vrchlabi

In Vrchlabi, Czech Republic, the September winds offer a gentle respite as summer transitions to autumn, averaging around 2.5 m/s (5 mph). This slight dip from the earlier months signifies the settling of the peak summer breezes, which reach a high of 3.5 m/s (8 mph) in May. Following the breezy momentum of spring, where wind speeds gradually increase before reaching their summer peak, September marks a turning point, as the winds calm just before the more boisterous gusts of fall return in October. The overall trend reveals a seasonal rhythm, with wind speeds building during the warmer months, only to soften as autumn approaches, creating a serene atmosphere in this picturesque Czech town.

Average September Wind Speed in Vrchlabi

The chart displays monthly wind speed patterns in Vrchlabi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.72.72.83.23.52.22.32.42.5 m/s3.12.82.9
Data source: Vrchlabi September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Vrchlabi Compares to Other Months

The weather in Vrchlabi changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Vrchlabi and find detailed weather information for every month.

In September, temperatures range from a chilly -2°C (28°F) at night to a warm 27°C (80°F) during the day, with an average of 12°C (54°F). This month sees a moderate amount of precipitation, totaling 94 mm (3.7 in) over about 14 days, and humidity levels are around 72%. In contrast, January is considerably colder, with temperatures dipping as low as -20°C (-4°F) and only reaching a maximum of 10°C (49°F), averaging -3°C (27°F). Precipitation is slightly lower at 84 mm (3.3 in) for the same number of rainy days, but humidity increases to 89%, creating a stark contrast between the two months. For further details on January weather, check out Vrchlabi weather in January.

When comparing the weather in September and February, significant contrasts emerge. September experiences a milder climate, with average temperatures ranging from a low of -2°C (28°F) to a comfortable high of 27°C (80°F), accompanied by relatively moderate humidity at 72%. In contrast, February brings much colder conditions, with average temperatures ranging from a frigid -20°C (-4°F) to a maximum of only 9°C (49°F), and higher humidity levels at 87%. Additionally, while September sees 94 mm (3.7 in) of precipitation over 14 days, February has slightly less at 79 mm (3.1 in) over 12 days. For more detailed insights into February's weather, you can check Vrchlabi weather in February.

September and March present quite contrasting weather conditions. In September, temperatures range from a cool -2°C (28°F) at night to a warm 27°C (80°F) during the day, resulting in an average temperature of 12°C (54°F). While it experiences a higher humidity level of 72%, it also sees about 94 mm (3.7 in) of precipitation over 14 days. In contrast, March is significantly colder, with temperatures dipping as low as -18°C (0°F) at night and peaking at 17°C (63°F), leading to an average temperature of just 1°C (35°F). This month has slightly lower precipitation at 75 mm (3.0 in) but occurs over more days, totaling 15. Increased humidity at 84% also adds to the wintry feel. For a more detailed look at March weather, you can check Vrchlabi weather in March.

When comparing the weather in September and April, there are noticeable differences in both temperature and precipitation. September typically sees a much warmer average temperature of 12°C (54°F), peaking at 27°C (80°F), whereas April's average is lower at 6°C (43°F), with a maximum of 23°C (73°F). In terms of precipitation, September experiences a higher total of 94 mm (3.7 in) over 14 rainy days, compared to April's 61 mm (2.4 in) and 12 rainy days. Additionally, April has a slightly higher humidity level at 78%, compared to September’s 72%. For more detailed weather information, you can visit Vrchlabi weather in April.

When comparing the weather of September and May, we see some interesting similarities and differences. In both months, temperatures are quite mild, with September having a slightly higher average of 12°C (54°F) compared to May's 11°C (51°F). The maximum temperatures in September reach up to 27°C (80°F), while May's peak is a touch lower at 26°C (79°F). However, May experiences a bit more precipitation, totaling 115 mm (4.5 in) over 17 days compared to September's 94 mm (3.7 in) across 14 days. Additionally, the humidity level in September is higher at 72%, while May enjoys a drier atmosphere at 63%. For more detailed information on May weather, you can check Vrchlabi weather in May.

When comparing the weather in September and June, we see notable differences in temperature and precipitation. September starts off with a minimum temperature of -2°C (28°F) and can go up to 27°C (80°F), averaging around 12°C (54°F). In contrast, June features warmer conditions with a minimum of 2°C (35°F) and maximum temperatures reaching 31°C (88°F), averaging 16°C (61°F).

Regarding precipitation, September experiences 94 mm (3.7 in) over approximately 14 days, while June has slightly higher precipitation at 120 mm (4.7 in), spread over the same number of days. Despite the higher rainfall in June, it maintains a lower humidity level of 63%, compared to September's 72%. For more specifics on June weather conditions, you can check the details here: Vrchlabi weather in June.

In comparing the weather of September and July, there are notable differences in temperature and precipitation trends. September exhibits a broader temperature range, with minimums dipping to -2°C (28°F) and maximums reaching 27°C (80°F), while the average temperature stands at 12°C (54°F). In contrast, July generally experiences milder conditions, with minimum temperatures at 4°C (40°F) and maximums peaking at 31°C (88°F), resulting in a higher average temperature of 16°C (62°F). Additionally, July records more rainfall, with 115 mm (4.5 in) over 17 days compared to September’s 94 mm (3.7 in) over 14 days. The humidity also differs, being higher in September at 72% versus 61% in July. For more detailed insights on July weather, you can explore Vrchlabi weather in July.

In September, temperatures in Vrchlabi tend to be cooler, with a minimum of -2°C (28°F) and an average of 12°C (54°F), compared to August's milder minimum of 4°C (40°F) and an average of 17°C (62°F). The maximum temperature in September reaches 27°C (80°F), which is still lower than August's peak of 30°C (87°F). Additionally, September experiences more precipitation, totaling 94 mm (3.7 in) over 14 days, compared to August's 141 mm (5.5 in) over 17 days. Interestingly, September is slightly more humid at 72%, in contrast to August's humidity level of 65%. For more detailed information on August weather, visit Vrchlabi weather in August.

In September, the weather boasts a more temperate range with minimum temperatures around -2°C (28°F) and an average of 12°C (54°F), peaking at a pleasant 27°C (80°F). This month is characterized by relatively moderate precipitation levels of 94 mm (3.7 in) over 14 days, coupled with a humidity level of 72%.

Conversely, October sees a noticeable drop in temperature, with minimums dipping to -4°C (25°F) and an average of 8°C (47°F), while highs reach a maximum of 20°C (68°F). The month experiences slightly increased precipitation of 103 mm (4.0 in), also spread over 14 days, resulting in a higher humidity level of 80%. For more details on conditions during this month, you can check the Vrchlabi weather in October.

September weather is characterized by a wider temperature range, with minimums around -2°C (28°F), averages at 12°C (54°F), and maximums reaching as high as 27°C (80°F). This month also experiences relatively high humidity levels at 72% and greater precipitation, totaling 94 mm (3.7 in) over approximately 14 days. In contrast, November sees a significant drop in temperatures, with minimums falling to -8°C (18°F) and an average temperature of only 3°C (38°F). The month is cooler, with maximums capping at 14°C (57°F) and a decrease in precipitation to 58 mm (2.3 in) over 11 days, coupled with higher humidity at 87%. For a more detailed look at weather conditions in November, check out Vrchlabi weather in November.

September and December present markedly different weather conditions. In September, temperatures range from a chilly minimum of -2°C (28°F) to a pleasant maximum of 27°C (80°F), with an average of 12°C (54°F). The month experiences around 94 mm (3.7 in) of precipitation over 14 days and maintains a humidity level of 72%. In contrast, December brings much colder temperatures, with a minimum of -19°C (-2°F), an average of -1°C (31°F), and a maximum of only 8°C (47°F). Precipitation increases slightly to 97 mm (3.8 in) but is spread over 17 days and paired with a higher humidity level of 91%. For a more detailed look at December weather, you can visit Vrchlabi weather in December. Overall, September offers a warmer and drier climate compared to the cold and damp conditions of December.

Compare Vrchlabi's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Vrchlabi

As September unfolds in Vrchlabi, it marks a transition into cooler temperatures, contrasting sharply with the warmth of summer months. The days are often comfortable, making it a delightful time for outdoor activities, though the evenings can bring a brisk chill. With around two weeks of precipitation, the month showcases typical fall weather, characterized by higher humidity levels that add a sense of freshness to the air. This unique blend of warm days and cool nights, along with rainfall, sets September apart from the drier and hotter summer months. To explore more about what to expect throughout the year, visit Vrchlabi Climate.