Last updated: January 18, 2025
Koper-Capodistria, Slovenia, is characterized by a Cfb climate classification, denoting a temperate oceanic climate. This locale experiences a diverse temperature range, with winter lows plunging to a minimum of -7°C (20°F) in January, contrasting sharply with the summer highs that can reach a sweltering 34°C (94°F) in August. The annual average temperature hovers around 14°C (58°F), illustrating the region's mild climate with seasonal variations that offer both chilly winters and warm summers, contributing to its unique environmental and cultural landscapes.
Koper-Capodistria, Slovenia, exhibits distinct seasonal temperature patterns that transition from the cold winter months to warm summers. January marks the peak of winter chill, with lows dipping to -7°C (20°F) and average temperatures around 5°C (41°F). As spring arrives in March, temperatures gradually climb, reaching a comfortable 9°C (48°F) on average, while April and May further warm up, with highs hitting 25°C (77°F) and 27°C (81°F) respectively. The summer months of June, July, and August experience the highest temperatures, peaking in August at a scorching 34°C (94°F), while the average stays around 25°C (77°F). As autumn sets in, temperatures begin to cool again, with September averaging 20°C (68°F) before dipping to 11°C (52°F) in November, and ultimately falling back to 7°C (44°F) by December. This cyclical variation highlights the region's marked seasonal changes, characterized by mild winters and warm summers.
Sv. Anton, Koper, and Skocjan all experience similar temperature ranges, with minimums reaching -7°C (20°F) in January and maximums soaring to 34°C (94°F) in August. For more details on each location's climate, you can explore the monthly temperatures in Sv. Anton here, in Koper here, and in Skocjan here.
Koper-Capodistria experiences a notable variation in precipitation throughout the year, with distinct seasonal trends in both intensity and frequency. The wettest months occur in late autumn and early winter, with November receiving a substantial 176 mm (6.9 in) of rainfall across 12 days, closely followed by December at 150 mm (5.9 in) and February, which tops the monthly totals with 118 mm (4.6 in). Spring also witnesses significant rainfall, particularly in May, which accounts for 142 mm (5.6 in) across 17 days, contributing to the region's lush vegetation and dynamic landscape.
Summer months tend to be drier, with July and August showing lower precipitation levels of 65 mm (2.6 in) and 70 mm (2.7 in), respectively, and fewer rainy days—just 8 in each month. However, June still maintains a moderate 87 mm (3.4 in). Additionally, March and April experience respectable levels of precipitation, with 71 mm (2.8 in) and 103 mm (4.0 in), respectively. Overall, Koper-Capodistria's precipitation patterns illustrate a clear seasonal cycle, where wet conditions prevail in the colder months and tend to ease during the summer, shaping the region's unique climate profile.
Koper-Capodistria, Slovenia, showcases a remarkable variation in sunshine duration throughout the year, with clear seasonal trends highlighting the transition from winter's gloom to summer's brightness. January begins with a modest 182 hours of sunshine, gradually increasing in February to 223 hours. As spring unfolds, a notable surge occurs, especially in March and April, where sunshine hours reach 315 and 344 hours, respectively. By the time May arrives, residents enjoy an impressive 372 hours of sunlight, setting the stage for the vibrant summer months ahead.
The peak sunshine months occur during the summer, with July leading the way at 430 hours, followed closely by June and August with 417 and 397 hours of sunshine, respectively. This abundant summer light contrasts sharply with autumn and winter, where October sees a decrease to 293 hours, and November and December dip further to 229 and 207 hours. This cyclical pattern underscores Koper-Capodistria’s favorable climate for outdoor activities and tourism, particularly during the sun-drenched summer months, while the shorter days of winter offer a cozy atmosphere for local culture and traditions.
Koper-Capodistria experiences notable fluctuations in its UV Index throughout the year, reflecting the changing sun intensity. During the winter months of January and December, the UV Index is on the lower end, registering at 2, indicating a low exposure category with a burn time of 45 minutes. As spring approaches, February sees an increase to 3 (moderate), followed by March peaking at 5—a clear sign that sun protection becomes increasingly important as temperatures rise and outdoor activities grow in popularity.
The summer months witness the highest UV Index levels, with June and July both reaching 9, categorized as very high, demanding serious precautions with a burn time reduced to just 15 minutes. August follows closely with an 8 index, while September provides some relief as it drops to 7 (high). As autumn sets in, the UV Index gradually decreases, returning to moderate levels in October and November before falling back to low levels in December. This annual UV trend emphasizes the necessity for sun protection during the warmer months, particularly from late spring to early autumn, when the sun's intensity can significantly impact skin health.
UV Risk Categories
Koper-Capodistria, Slovenia, exhibits a clear seasonal variation in daylight duration, significantly impacting the daily life and activities of its residents. Starting in January with only 9 hours of daylight, the month signals the depths of winter, but as February arrives, an additional hour of light emerges, bringing the total to 10 hours. This upward trend continues into spring, where March garners 11 hours, and by April, daylight increases to 13 hours, allowing for more enjoyment of the outdoors as the days grow longer.
The summer months showcase the peak of daylight duration, with both June and July basking in a generous 15 hours of sunlight, ideal for outdoor excursions and community events. As August begins, daylight begins a slow descent towards autumn, receding to 14 hours. September still offers a respectable 12 hours, but by October, it drops again to 10 hours. The transition into winter is marked by a further decline, culminating in just 8 hours of daylight in December. This cyclical pattern of daylight hours emphasizes the significant seasonal changes experienced in Koper-Capodistria, influencing lifestyle, culture, and recreation throughout the year.
Slovenia experiences a continental climate characterized by distinct seasons. Winter temperatures in January average around 5°C (41°F), while summer months see averages peak at 24°C (75°F) in July. Precipitation varies throughout the year, with May and September recording the highest levels at 142 mm (5.6 in) and 164 mm (6.4 in), respectively. Sunshine hours are abundant, especially in summer, with July boasting up to 430 hours of sunshine. For more detailed information on the climate, visit the climate.
Koper, Slovenia experiences a Mediterranean climate characterized by mild winters and warm summers. Average temperatures range from a chilly 5°C (41°F) in January to a warm 25°C (77°F) in August, with July peaking at 33°C (91°F). Precipitation is highest in November (176 mm) and September (164 mm), while the months of June and July enjoy the most sunshine, boasting up to 430 hours. This coastal town offers a pleasant climate, making it ideal for year-round visits. For more details, visit Koper climate.
The climate in Skocjan, Slovenia, features cold winters and warm summers, with January temperatures ranging from a minimum of -7°C (20°F) to a maximum of 13°C (56°F). As spring approaches, temperatures rise significantly, peaking in July and August with averages around 25-24°C (77-75°F). Precipitation is abundant, particularly in the autumn months, with November receiving the highest average of 176 mm (6.9 in). Alongside varying precipitation, sunny days are more frequent during the summer, with July enjoying about 430 hours of sunshine. For more detailed information, visit Skocjan climate.
Sv. Anton, Slovenia experiences a diverse climate with cold winters and warm summers. January temperatures range from -7°C to 13°C, while July sees highs up to 34°C. Precipitation is relatively high, with May and November receiving the most rainfall at 142 mm and 176 mm, respectively. The area enjoys ample sunshine, particularly in the summer months, peaking at 430 hours in July. For more detailed information, visit Sv. Anton climate.
In conclusion, Koper-Capodistria, Slovenia, presents a vibrant tapestry of climatic elements, from temperature and precipitation patterns to sunlight and UV exposure. The region's Cfb climate ensures a diverse seasonal experience characterized by mild winters and warm summers. The marked variation in sunshine duration throughout the year allows residents and visitors to fully embrace outdoor activities in the brighter months, while the UV Index signals the importance of sun protection during peak intensities. Collectively, these climatic factors contribute to the distinctive appeal of Koper-Capodistria, fostering a thriving environment for both the natural ecosystem and the community's cultural pursuits year-round.