Last updated: April 1, 2025
September in Karlovy Vary, Czech Republic offers a fascinating blend of autumnal charm and mild temperatures. With highs reaching 28°C (82°F) and an average of 13°C (55°F), visitors can enjoy a pleasant climate, although nights may dip to a brisk -1°C (31°F). Expect around 59 mm (2.3 in) of rain over 10 days, contributing to the area's lush, vibrant scenery amidst a notable humidity level of 81%. This transitional month invites exploration, allowing travelers to experience the thermal springs and natural beauty of Karlovy Vary against a backdrop of changing leaves and a rich cultural atmosphere.
September in Karlovy Vary, Czech Republic marks the transition from the warmth of summer to the crispness of autumn. With temperatures ranging from a chilly -1°C (31°F) at night to a pleasant 28°C (82°F) during the day, visitors can enjoy the best of both worlds. The average temperature settles around 13°C (55°F), inviting outdoor strolls amid the town's stunning architecture and natural springs. As the month progresses, a notable trend emerges: the gentle decline in warmth hints at the upcoming winter chill. This unique climate creates a beautiful backdrop for exploring the region’s rich cultural heritage while savoring the last tastes of summer.
In September, Karlovy Vary experiences moderate rainfall, with an average precipitation of 59 mm (2.3 in) spread over about 10 days. This marks a slight decrease from the heavier downpours of August, which saw a peak of 90 mm (3.5 in). As summer transitions into autumn, the weather begins to shift, evidenced by shorter precipitation days and a drop in totals compared to the preceding months. While September is drier, it still contributes to the region's lush landscape, setting the stage for the cooler, crisper fall days ahead. Overall, this month serves as a gentle, lingering nod to summer’s warmth while subtly ushering in the autumnal chill.
As summer transitions into autumn, September in Karlovy Vary sees a modest humidity level of 81%. This slight uptick from the drier late summer months reflects the gradual return of moisture to the air, setting the stage for the wetter conditions typical of fall and winter. Notably, September’s humidity aligns closely with April’s, suggesting a seasonal balance where the lush landscapes regain their vibrancy after the dry warmth of summer. As the year progresses, humidity steadily climbs, peaking in the winter months, with January reaching a notable 90%. This trend underscores a striking contrast between the serene, crisp autumn atmosphere and the damp chill that defines the region in the colder months.
As summer gracefully transitions into autumn, September in Karlovy Vary sees a UV Index of 6, placing it in the high exposure category. This signifies a notable dip from the peak values recorded during the summer months, yet caution is still advised, with a burn time of around 25 minutes for unprotected skin. The month reflects a broader trend of decreasing UV levels as the year progresses, following the very high indices of May through August. As we approach October, when the UV Index falls further to 4, it's a perfect time to enjoy the crisp air while still being mindful of sun protection. For more detailed information, check out the comprehensive data on the Karlovy Vary UV Index.
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As summer gracefully gives way to autumn, September in Karlovy Vary offers a delightful blend of warmth and sunshine. With 308 hours of sunlight, this month sees a noticeable drop from the peak of July, which boasts 424 hours, but still retains a vibrant glow compared to the winter months ahead. The progressive decline in sunlight from the summer heats culminates in a beautiful tapestry of fall colors, making it a picturesque time for visitors to enjoy the city's renowned spas and stunning landscapes. As daylight decreases leading into October’s 252 hours, September stands out as a transitional gem, inviting exploration and relaxation amidst the lingering warmth of summer.
As summer gently fades, September in Karlovy Vary offers a notable increase in sunshine, with the likelihood of sunny weather reaching 35%. This uptick in sunshine is a refreshing contrast to the more overcast months of August and May, where chances dip to around 25% and 26%, respectively. Although not as bright as the peak of spring, where March boasts a 36% chance of sun, September's weather presents a pleasant opportunity for locals and visitors alike to enjoy the vibrant scenery of the Czech Republic. With a gradual descent into autumn, this month strikes a delightful balance between warm days and crisp evenings, making it an ideal time for outdoor explorations amidst stunning fall foliage.
As summer gracefully transitions into autumn, September in Karlovy Vary experiences a notable shift in daylight, offering around 12 hours of sunlight. This marks a gentle decline from the peak of 16 hours seen in June, reflecting the fading warmth of summer days. The gradual shortening of daylight continues from September into October, where the sun retreats to just 10 hours. This trend symbolizes nature’s rhythm, inviting the vibrant colors of fall to emerge, while the added shadows signal a cozy transition towards winter. As the days grow shorter, the charm of Karlovy Vary remains ever-present, making the most of each sunlit moment.
As September unfolds in Karlovy Vary, the gentle caress of the wind becomes a defining feature of the month, with an average speed of 2.2 m/s (5 mph). This represents a shift towards calmer breezes, especially when compared to the more spirited winds of late spring, which peak at 3.7 m/s (8 mph) in May. The transition from the summer months is marked by a noticeable decrease in wind intensity, reflecting the onset of autumn's embrace. With the cooler air settling in, the soft winds of September invite leisurely strolls through the picturesque streets and scenic vistas, making this a perfect time to experience the charm and tranquility of the Czech Republic’s renowned spa town.
The weather in Karlovy Vary 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 Karlovy Vary and find detailed weather information for every month.
September and January present starkly contrasting weather conditions. In September, temperatures fluctuate from a low of -1°C (31°F) to a warm high of 28°C (82°F), with an average of 13°C (55°F), making it a month filled with pleasant warmth. The humidity sits at 81%, and while there is some rainfall, with 59 mm (2.3 in) spread over 10 days, the overall atmosphere remains relatively mild.
In contrast, January is marked by significantly colder temperatures, ranging from a minimum of -21°C (-6°F) to a maximum of 10°C (51°F), averaging -1°C (30°F). This month sees a slight increase in precipitation to 64 mm (2.5 in), but it often comes with 12 days of rain or snow. Additionally, the humidity rises slightly to 90%, contributing to the chilly and damp conditions prevalent during this winter month. For more specific details, check out Karlovy Vary weather in January.
September typically offers milder and more varied temperatures, with minimum and maximum values ranging from -1°C (31°F) to 28°C (82°F), and an average temperature of 13°C (55°F). In contrast, February is significantly colder, with temperatures plunging to a minimum of -17°C (1°F) and a high of only 14°C (57°F), averaging around 0°C (32°F). Precipitation is quite similar in both months, with September receiving 59 mm (2.3 in) over 10 days, while February sees 56 mm (2.2 in) across 11 days. However, February tends to be more humid, with a humidity level of 89% compared to September's 81%. For more details on winter weather, visit Karlovy Vary weather in February.
The weather in September is generally milder and more pleasant compared to March. In September, temperatures range from a minimum of -1°C (31°F) to a maximum of 28°C (82°F), with an average temperature of 13°C (55°F). During this month, there is about 59 mm (2.3 in) of precipitation over an average of 10 days, accompanied by a humidity level of 81%.
In contrast, March experiences cooler temperatures, with a minimum of -18°C (1°F) and a maximum of 19°C (67°F), resulting in an average of only 2°C (37°F). Precipitation increases slightly to 67 mm (2.6 in) spread over 15 days, and humidity is a touch higher at 87%. This variability in weather can be explored further at Karlovy Vary weather in March. Overall, September offers a warmer and drier climate, while March is marked by more chill and dampness.
When comparing the weather in September and April, notable differences emerge in both temperature and precipitation. September typically enjoys warmer temperatures, with averages around 13°C (55°F), peaking at a maximum of 28°C (82°F). In contrast, April is cooler, averaging 7°C (44°F) and reaching a maximum of 24°C (76°F). Both months experience humidity levels of 81% and have similar precipitation, with September receiving slightly more rainfall at 59 mm (2.3 in) compared to April's 41 mm (1.6 in). For more details on April weather, you can check Karlovy Vary weather in April.
In comparing the weather between September and May, we notice some intriguing differences. September typically enjoys a wider range of temperatures, with averages around 13°C (55°F) and maximums reaching 28°C (82°F), while May averages a slightly cooler 11°C (52°F) with highs at 27°C (81°F). Precipitation is more frequent in May, with rainfall recorded on 16 days and totaling 87 mm (3.4 in), compared to September's 10 days of rain and 59 mm (2.3 in). Interestingly, the humidity is higher in September at 81%, while May maintains a lower 71%. For more detailed insights into May's weather specifically, check out Karlovy Vary weather in May.
In comparing the weather between September and June, we see distinct differences in temperature and precipitation. September typically experiences a more moderate range, with average temperatures of 13°C (55°F), peaking at 28°C (82°F), while June boasts warmer averages of 17°C (62°F) and highs reaching 33°C (91°F). Additionally, September has slightly lower humidity at 81%, compared to June's 75%. Rainfall is comparable, with September receiving about 59 mm (2.3 in) over 10 days, while June sees a higher total of 82 mm (3.2 in) over 12 days. For more detailed insights, you can check Karlovy Vary weather in June.
In comparing the weather of September and July, September tends to be cooler overall, with average temperatures ranging from a minimum of -1°C (31°F) to a maximum of 28°C (82°F), while July boasts warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 33°C (92°F). Additionally, July experiences slightly higher precipitation at 79 mm (3.1 in) over 14 days, compared to September's 59 mm (2.3 in) over 10 days. Humidity also varies, with September at 81% and July at a more moderate 74%. For more details on July weather specifics, you can check out Karlovy Vary weather in July.
In comparing the weather between August and September, we observe a transition from late summer to early autumn. September experiences cooler temperatures, with an average of 13°C (55°F) compared to August's average of 17°C (63°F). The minimum temperature in September can drop to a chilly -1°C (31°F), whereas August maintains a milder minimum of 5°C (42°F). Rainfall in September decreases to 59 mm (2.3 in) over 10 days, compared to August's heavier rainfall of 90 mm (3.5 in) over 14 days. Humidity increases slightly in September to 81%, up from 76% in August. For further insights into the climate during August, you can explore more about the Karlovy Vary weather in August.
As September transitions into October, the weather in Karlovy Vary experiences notable changes. September boasts a wider temperature range with minimums around -1°C (31°F) and maximums reaching up to 28°C (82°F), providing an average of 13°C (55°F). In contrast, October sees cooler temperatures, with minimums dropping to -3°C (27°F) and a maximum of 22°C (71°F), resulting in an average of just 8°C (47°F). Precipitation increases slightly from 59 mm (2.3 in) over 10 days in September to 63 mm (2.5 in) over 11 days in October, accompanied by a rise in humidity from 81% to 85%. For more detailed weather insights, check Karlovy Vary weather in October.
In comparing the weather between September and November, September tends to be milder, with average temperatures ranging from a chilly 1°C (31°F) at night to a comfortable 28°C (82°F) during the day. This month experiences a total precipitation of 59 mm (2.3 in) over approximately 10 days, coupled with a humidity level of 81%. In contrast, November brings cooler conditions, featuring lower average temperatures of about 3°C (38°F) and a maximum of only 16°C (61°F), along with a slight decrease in precipitation to 39 mm (1.5 in) over the same number of rainy days. Notably, humidity rises to 88%, making the air feel even chillier. For more detailed insights into November weather, you can check out Karlovy Vary weather in November.
In September, the weather begins to transition from summer warmth, with average temperatures around 13°C (55°F) and highs reaching up to 28°C (82°F), accompanied by a moderate precipitation of 59 mm (2.3 in) over about ten days. Humidity levels are relatively high at 81%, making the air feel quite moist.
In contrast, December brings much colder conditions, with average temperatures plummeting to around 0°C (33°F) and a maximum of just 10°C (51°F). This month experiences increased precipitation at 77 mm (3.0 in), spread over 16 days, and humidity rises to 92%, contributing to a chilly atmosphere. The stark difference in temperature and overall weather patterns highlights the dramatic shift from early autumn to deep winter. For more specific insights on weather conditions in December, refer to Karlovy Vary weather in December.
As September unfolds in Karlovy Vary, the weather marks a transition into the cooler embrace of autumn. Average temperatures shift to a more moderate feel, making it a refreshing time compared to the warmer summer months. While the days can still reach pleasant highs, the nights get chillier, hinting at the approaching winter. With a notable amount of rain over about a third of the month, the region becomes lush and vibrant, setting the perfect backdrop for exploring its famous spa culture. The increased humidity adds a sense of crispness to the air, creating an invigorating atmosphere. For those looking to understand how September’s climate stands apart, check out the detailed insights on Karlovy Vary Climate.