Last updated: August 27, 2025
October in Koper, Slovenia brings a captivating blend of mild temperatures and refreshing autumnal charm. With a maximum of 23°C (74°F) and an average of 15°C (59°F), the days are pleasantly warm, while the minimum dips to a cooler 6°C (44°F) at night. Visitors can expect around 107 mm (4.2 in) of rain spread over 10 days, contributing to the region's lush landscapes. Humidity levels remain high at 83%, enhancing the crisp air and vibrant colors of fall. Koper's October weather is perfect for enjoying outdoor activities while experiencing the beauty of the season.
In Koper, Slovenia, October marks a pleasant transition into autumn, characterized by mild temperatures that invite outdoor exploration. With a minimum of 6°C (44°F) and an average of 15°C (59°F), the weather is comfortably cool, making it ideal for strolling through the city's charming streets or enjoying the stunning coastal views. The month's maximum temperature, reaching 23°C (74°F), still hints at the lingering warmth of summer, perfect for those who want to soak up the last rays of the sun before winter sets in. As the month progresses, the days become shorter and cooler, but October's balmy climate serves as a beautiful bridge into the crispness of November.
In October, Koper, Slovenia, experiences a shift into the wetter months, with precipitation totaling 107 mm (4.2 in) over 10 days. This marks a continuation of the region's trend from September, where rainfall peaked at 164 mm (6.4 in). October's rainfall is characteristic of the transition into autumn, bridging the heavier rains of November (176 mm) and the milder months preceding it. As the days grow shorter and temperatures dip, residents can expect a blend of both rain and crisp fall air, setting the stage for a quintessential European autumn. This pattern highlights the region's significant variability throughout the year, with October serving as a reminder of the seasonal shifts that define Koper's climate.
In October, Koper experiences a notable rise in humidity, with levels reaching 83%. This spike is part of a seasonal transition, as the city shifts from the drier summer months of August, with its low of 51%, back to the wetter conditions typical of winter. The humidity gradually increases from September's 64%, reflecting the onset of autumn when the atmosphere begins to retain more moisture. Interestingly, October's humidity serves as a precursor to November, which sees an even higher level at 89%, marking the return of the cooler, more humid weather that characterizes the late fall in Slovenia. This pattern illustrates a clear trend of increasing humidity as the year progresses from the warmth of summer into the depth of winter.
In October, Koper, Slovenia experiences a UV Index of 5, placing it in the moderate exposure category with a burn time of approximately 30 minutes. This marks a noticeable decline from the very high levels seen during the peak summer months, where indices reached up to 9 in June and July. As autumn settles in, sun-seekers can still enjoy outdoor activities without the intense risk of sunburn prevalent in earlier months. It's a transition month that encourages enjoying the milder sun, but caution is still advised, highlighting the importance of staying informed about UV levels throughout the year. For detailed information and daily updates, check the Koper UV Index.
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In October, Koper, Slovenia, basks in a mellow glow of sunshine, boasting approximately 293 hours of radiant light. This month serves as a transition into autumn, delicately balancing summer's warmth with the crispness of approaching winter. Following the vibrant summer months, where sunshine peaked at 430 hours in July, October sees a notable decline but still offers a generous amount of daylight compared to the harsher winter months ahead. As the scenery shifts with the vibrant fall foliage, the sunlight dances on the Adriatic coast, inviting locals and visitors alike to savor the season's beauty. With daylight dwindling, October sets the stage for cozy gatherings, scenic strolls, and the last tastes of outdoor adventures before winter's embrace.
As autumn sets in, the likelihood of sunny weather in Koper, Slovenia experiences a notable dip in comparison to the vibrant summer months. In October, the chance of sunshine is around 50%, striking a balance between the radiant days of late summer and the more overcast skies of winter. This marks a slight decrease from September’s 59% but reflects a trend of variability typical for the month, as the region transitions into cooler temperatures. Overall, October still offers a fair opportunity for sun, joining other transitional months like April and May, where sunshine chances also hover around the mid-40s to 50s. So, while the days may be shorter and the air cooler, Koper still holds onto a decent chance of sunshine this October.
As October arrives in Koper, Slovenia, the days begin to shorten, offering about 10 hours of daylight. This decline marks a subtle transition from the sun-drenched months of summer, where June and July bask in the maximum 15 hours of light. As autumn unfolds, daylight wanes gradually, following a pattern established throughout the year—starting from a mere 9 hours in January, climbing to an impressive peak in May, and finally tapering off in the final months. By embracing the seasonal shift, Koper's residents can appreciate the cozy, golden hues of fall while savoring the last glimpses of daylight before winter settles in with even shorter days.
As October unfolds in Koper, Slovenia, residents and visitors alike feel a noticeable shift in the breeze, with average wind speeds reaching 3.6 m/s (8 mph). This increase marks a transition from the calmer summer months, where winds dipped as low as 2.2 m/s (5 mph) in June and did not rise above 3.2 m/s (7 mph) until later in the year. The invigorating autumn gales serve as a prelude to the even windier months ahead, as November follows closely with 3.7 m/s (8 mph). This seasonal change not only breathes life into the picturesque coastal town but also enhances the vibrant atmosphere of October, inviting everyone to embrace the brisk air and the stunning fall scenery.
Weather in Koper varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Koper, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present stark contrasts in weather conditions. October boasts milder temperatures, ranging from a minimum of 6°C (44°F) to a pleasant maximum of 23°C (74°F), with an average of 15°C (59°F). This month also experiences significant rainfall, totaling 107 mm (4.2 in) over approximately 10 days, coupled with high humidity levels at 83%. In stark comparison, January brings colder temperatures, with a minimum of -7°C (20°F) and a maximum of 13°C (56°F), averaging around 5°C (41°F). While it's slightly drier with only 56 mm (2.2 in) of precipitation across 7 days, the humidity rises to 88%. For those interested in more details, you can explore Koper weather in January.
October and February present contrasting weather patterns, both in temperature and atmospheric conditions. In October, temperatures range from a mild 6°C (44°F) at night to a comfortable average of 15°C (59°F) during the day, peaking at 23°C (74°F). The month experiences significant precipitation, measuring 107 mm (4.2 in) over approximately 10 days, accompanied by high humidity levels at 83%. In stark contrast, February is much colder, with nighttime temperatures dropping to -6°C (22°F) and an average daytime warmth of 7°C (44°F), reaching highs of 19°C (67°F). This month sees even more rainfall at 118 mm (4.6 in), also over 10 days, and slightly lower humidity at 82%. For more detailed insights, you can check out this link: Koper weather in February.
When comparing the weather in October and March, it's clear that October tends to be milder and wetter. The average temperature in October reaches 15°C (59°F), with a max of 23°C (74°F) and a higher humidity level of 83%, compared to March's average of 9°C (48°F) and a maximum of 21°C (70°F). Additionally, October experiences more precipitation with 107 mm (4.2 in) over 10 days, while March sees 71 mm (2.8 in) across 8 days. For those considering a visit in March, you can find more detailed information at Koper weather in March.
When comparing the weather in October and April, a few key differences stand out. October typically experiences a warmer average temperature of 15°C (59°F), with daytime highs reaching up to 23°C (74°F), while April’s average is slightly cooler at 13°C (55°F), with maximums of 25°C (77°F). However, April can start off quite chilly, with minimum temperatures dropping to 1°C (34°F), compared to October's milder minimum of 6°C (44°F). Both months see similar precipitation levels, with October recording 107 mm (4.2 in) and April just slightly lower at 103 mm (4.0 in), each experiencing rainfall on about 10 days. While October has a higher humidity level of 83%, April’s humidity is considerably lower at 73%, making it feel a bit crisper. For more information on April weather in Koper, check this link: Koper weather in April.
In October, temperatures typically range from a cool minimum of 6°C (44°F) to a maximum of 23°C (74°F), with an average of around 15°C (59°F). The month sees significant precipitation, with 107 mm (4.2 in) of rain falling over about 10 days, contributing to a high humidity level of 83%. In contrast, May experiences slightly warmer temperatures, with a minimum of 7°C (46°F), an average of 17°C (63°F), and a maximum of 27°C (81°F). However, it also has higher precipitation, totaling 142 mm (5.6 in) over 17 days, but lower humidity at 70%. For more details on the weather during this month, check out Koper weather in May.
In comparing the weather of October and June, October tends to present cooler temperatures, with a minimum of 6°C (44°F) and a maximum of 23°C (74°F), resulting in an average temperature of 15°C (59°F). In contrast, June enjoys warmer conditions, featuring a minimum of 11°C (53°F) and a maximum of 33°C (92°F), leading to an average of 22°C (72°F). Additionally, October experiences higher humidity at 83%, alongside more days of precipitation, totaling 107 mm (4.2 in) over 10 days, while June has lower humidity at 69% and less precipitation at 87 mm (3.4 in) over 8 days. For more specific details about climate patterns, you can visit Koper weather in June.
When comparing the weather in October to that of July, it's clear that July boasts significantly warmer temperatures, with an average of 24°C (75°F) and maximums reaching up to 33°C (91°F). In contrast, October sees much cooler conditions, averaging around 15°C (59°F) and peaking at 23°C (74°F). Additionally, July experiences less precipitation, totaling 65 mm (2.6 in) over 8 days, whereas October is wetter, receiving 107 mm (4.2 in) across 10 days. The humidity is also noticeably lower in July at 63%, compared to October's higher level of 83%. For detailed information on July's climate, visit Koper weather in July.
October weather is significantly cooler and wetter compared to August. While October experiences average temperatures ranging from a minimum of 6°C (44°F) to a maximum of 23°C (74°F), August boasts much warmer conditions with averages between 15°C (59°F) and 34°C (94°F). Additionally, October sees more precipitation, with 107 mm (4.2 in) falling over 10 days, compared to August's 70 mm (2.7 in) over just 7 days. The humidity is also markedly higher in October at 83%, compared to a more comfortable 51% in August. For more detailed insights, you can check Koper weather in August.
In comparing the weather between September and October, October generally presents cooler temperatures, with daily averages of 15°C (59°F), compared to September's warmer average of 20°C (68°F). September experiences higher maximum temperatures, reaching up to 32°C (90°F), while October peaks at a more moderate 23°C (74°F). Additionally, October sees an increase in humidity, averaging 83%, compared to September's 64%. Although both months have around 10 days of precipitation, October receives less rainfall overall, totaling 107 mm (4.2 in) compared to September’s 164 mm (6.4 in). For more detailed information, you can check Koper weather in September.
October typically showcases milder temperatures, with a minimum of 6°C (44°F) and an average of 15°C (59°F), reaching a maximum of 23°C (74°F). The month also experiences relatively high precipitation, totaling 107 mm (4.2 inches) over about 10 days, along with a humidity level of 83%.
In contrast, November brings a notable shift, with temperatures dipping further; the minimum reaches 1°C (34°F), while the average drops to 11°C (52°F) and the maximum settles at 20°C (68°F). This month also sees increased precipitation, totaling 176 mm (6.9 inches) across approximately 12 days, coupled with a slightly higher humidity level of 89%.
For a more detailed look at the weather conditions in November, check out Koper weather in November.
October and December present a striking contrast in weather conditions. In October, temperatures range from a mild 6°C (44°F) to a pleasant 23°C (74°F), averaging around 15°C (59°F). The month experiences around 107 mm (4.2 inches) of precipitation over approximately 10 days, with humidity at 83%. In comparison, December sees a considerable drop in temperatures, with a minimum of -1°C (30°F) and a maximum of 15°C (60°F), averaging just 7°C (44°F). This month is wetter, with precipitation totaling 150 mm (5.9 inches) over about 12 days, and humidity slightly higher at 88%. For a deeper look into December conditions specifically, check out Koper weather in December.
As October settles in Koper, the weather transforms into a delightful blend of mild temperatures and increased humidity, creating a refreshing atmosphere compared to the warmer summer months. With average temperatures hovering around a comfortable 15°C, outdoor activities remain enjoyable, although occasional rainfall may disrupt the sunshine. This month typically experiences around 10 days of precipitation, adding a cozy charm to the scenery. Embrace the enchanting autumn vibes that make October a unique time to explore Koper. For a deeper understanding of Koper's climate patterns, check out Koper Climate.