Last updated: August 27, 2025
In June, Slovenia experiences a vibrant transition into summer, characterized by a maximum temperature soaring to 33°C (92°F) and an average temperature of 22°C (72°F), perfect for outdoor activities. While the minimum temperature dips to a comfortable 11°C (53°F) during the nights, the weather remains relatively humid at 69%, creating a warm and inviting atmosphere. However, locals and visitors should be prepared for some rain, as precipitation totals 87 mm (3.4 in) across approximately 8 days, adding a refreshing touch to the landscape. Whether basking in the sun or enjoying the refreshing rain, June in Slovenia offers a delightful blend of warmth and greenery.
In June, Slovenia experiences a delightful transition into summer, with temperatures noticeably warming up. The minimum temperature settles at a comfortable 11°C (53°F), while the average climbs to a pleasant 22°C (72°F) and peaks at a sun-soaked 33°C (92°F). This month marks a significant shift from the cooler spring months, as June's warmth invites outdoor activities and scenic exploration. With these rising temperatures, the landscape blooms vibrantly, making it an ideal time for visitors to soak in Slovenia's natural beauty under the sun.
June in Slovenia experiences a moderate precipitation level of 87 mm (3.4 in), with rainfall occurring over 8 days, marking a slight decrease from the wetter conditions of May. This transition reflects a general trend where spring's abundant showers give way to the drier summer months ahead. Notably, while June's rainfall is less than the highs of earlier spring months like February and May, it still contributes to the region's lush landscapes. As the country braces for July, historical patterns suggest that precipitation tends to decline further, creating a drier climate ideal for summer activities.
In June, Slovenia experiences a notable dip in humidity, reaching 69%, which marks a continued decline from the higher levels of the early spring months. This gradual decrease reflects the transition into summer, as humidity drops further to 63% in July and reaches its lowest point at 51% in August. The trend indicates a shift towards drier air during the warmer months, contrasting sharply with the damp conditions of winter, where humidity hovers around 88% in January and December. Such fluctuations in humidity create a dynamic climate, making Slovenia's summers pleasantly warm and inviting.
As summer unfolds in Slovenia, the June UV Index reaches a notable 9, marking a peak in sun exposure dangers and categorizing it as very high. Residents and visitors alike should be mindful that with a burn time of just 15 minutes, the risk of overexposure is significant. This trend follows a steady increase from January's modest 2, shifting from low to moderate levels in February and March, then surging into high and very high categories from April onwards. As we bask in the warm June sun, it’s crucial to take precautions for skin protection, ensuring enjoyable outdoor activities without the risk of sunburn. For more insights on UV levels throughout the year, check the UV Index.
UV Risk Categories
June in Slovenia basks in a radiant glow, boasting 417 hours of sunshine that heralds the start of the summer season. This significant increase from 372 hours in May showcases a delightful trend of longer, brighter days as the year progresses. The summer solstice marks this month as one of the sunniest, setting the stage for outdoor adventures and picturesque landscapes. As we transition into the heart of summer with July's peak at 430 hours, June acts as a prelude, enchanting visitors with its vibrant atmosphere and fostering a sense of joy that resonates throughout the sun-drenched days. With the sun shining valiantly, June invites everyone to embrace the beauty and warmth that Slovenia has to offer.
As we transition into June, Slovenia experiences a noticeable increase in sunny weather, with a 55% chance of sunshine gracing the skies. This marks a significant rise from earlier months like April and May, where the chances lingered around 40% and the optimism continues to grow, especially in comparison to the chillier winter months. The trend not only highlights the advent of summer but also sets the stage for vibrant outdoor activities, inviting both locals and visitors to bask in the warmth. With the likelihood of sun only slightly dipping in July, June emerges as a perfect time to enjoy Slovenia's picturesque landscapes under clear skies.
In Slovenia, June marks the peak of daylight enjoyment with an impressive 15 hours of sunlight, providing ample opportunity for outdoor adventures and social gatherings. This seasonal surge follows a steady increase from February's 10 hours and a more pronounced leap as spring progresses, showcasing the country's transition into summer. While daylight duration begins to wane again in the subsequent months—falling to 14 hours in August—the extended evenings of June invite locals and visitors alike to savor the vibrant nature and cultural festivities that define the summer months. As daylight gradually recedes toward the autumn, June stands out as a celebrated time of brightness and warmth.
In June, Slovenia experiences its calmest winds of the year, with an average wind speed of just 2.2 m/s (5 mph). This represents a noticeable dip from the breezy conditions of late spring, where May saw an increase to 3.2 m/s (7 mph). The gentle whispers of June winds continue into July and August, suggesting a trend of mildness that envelops Slovenia during the summer months. As the year progresses, wind speeds pick up again in the autumn, beginning in October, indicating a seasonal shift that prepares the region for the brisk winds of late fall and winter. Overall, June's serene winds mark a tranquil pause in the weather pattern, offering a perfect backdrop for outdoor activities amidst the stunning natural beauty of Slovenia.
Weather in varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in , focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January present strikingly different weather patterns. In June, temperatures range from a cool 11°C (53°F) at night to a warm 33°C (92°F) during the day, with an average temperature of 22°C (72°F). The month sees about 87 mm (3.4 in) of precipitation over approximately 8 days, all while maintaining a humidity level of 69%. In contrast, January features much colder temperatures, with a minimum of -7°C (20°F) and a maximum of only 13°C (56°F), averaging just 5°C (41°F). This winter month receives less precipitation, totaling 56 mm (2.2 in) over 7 days, but has a higher humidity level of 88%. For more details on January's weather, you can visit weather in January.
When comparing the weather in June and February, a stark contrast emerges. June boasts warmer temperatures, with a minimum of 11°C (53°F) and an average of 22°C (72°F), reaching highs of 33°C (92°F). In contrast, February experiences much colder conditions, beginning as low as -6°C (22°F) and averaging only 7°C (44°F), peaking at 19°C (67°F). Additionally, February sees higher humidity levels at 82%, compared to June's 69%. Precipitation is also notable, with February receiving 118 mm (4.6 in) over 10 days, while June experiences less rainfall at 87 mm (3.4 in) over 8 days. For more detailed insights, check the weather in February.
In March, the weather is considerably cooler, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 21°C (70°F) and an average of 9°C (48°F). This contrasts sharply with June, where the temperatures soar, boasting a minimum of 11°C (53°F), an average of 22°C (72°F), and a maximum of 33°C (92°F). While both months experience precipitation on about eight days, March receives slightly less rainfall at 71 mm (2.8 in) compared to June’s 87 mm (3.4 in). Additionally, March's humidity level at 73% is marginally higher than June's 69%, contributing to a different feel in the air. For more detailed insights, check the weather in March.
The weather in June is notably warmer than in April, with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 33°C (92°F). In contrast, April experiences a cooler range, with temperatures between 1°C (34°F) and 25°C (77°F) on average. Although June has less precipitation overall, with 87 mm (3.4 in) over 8 days, April sees slightly more rain at 103 mm (4.0 in) spread over 10 days. Humidity levels are also somewhat higher in April at 73%, compared to June's 69%. For more details on April's climate, you can check out the weather in April.
In June, the weather experiences a noticeable shift compared to May, with temperatures rising significantly; June boasts a minimum of 11°C (53°F) and an average of 22°C (72°F), peaking at 33°C (92°F). In contrast, May's temperatures are milder, ranging from a minimum of 7°C (46°F) to an average of 17°C (63°F) and a maximum of 27°C (81°F). While June sees less precipitation, totaling 87 mm (3.4 in) over just 8 days, May experiences heavier rainfall at 142 mm (5.6 in) across 17 days, resulting in a cooler, wetter month compared to the drier warmth of June. Humidity levels are quite similar, with May at 70% and June at 69%. For more details, you can check the weather in May.
June and July exhibit notable differences in weather characteristics. June typically sees a minimum temperature of 11°C (53°F) and an average of 22°C (72°F), reaching a maximum of 33°C (92°F). It is also marked by higher precipitation at 87 mm (3.4 in) over 8 days, contributing to a humidity level of 69%. In contrast, July experiences slightly warmer temperatures with a minimum of 16°C (61°F) and an average of 24°C (75°F), while maintaining a similar maximum of 33°C (91°F). Precipitation in July decreases to 65 mm (2.6 in) also over 8 days, resulting in lower humidity at 63%. For detailed insights into July's weather, you can check weather in July.
In June, temperatures range from a cool minimum of 11°C (53°F) to a warm maximum of 33°C (92°F), with an average temperature of 22°C (72°F). The month experiences more precipitation, totaling 87 mm (3.4 in) over 8 days, along with higher humidity levels at 69%. In contrast, August sees slightly warmer temperatures with a minimum of 15°C (59°F) and a maximum of 34°C (94°F), averaging 25°C (77°F). Precipitation decreases to 70 mm (2.7 in) over just 7 days, and humidity drops significantly to 51%. For more detailed insights, you can check the weather in August.
June and September present contrasting yet mild weather experiences. In June, temperatures range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), with an average of 22°C (72°F), offering warm days ideal for outdoor activities. However, it also sees an average precipitation of 87 mm (3.4 in) over approximately 8 rainy days, accompanied by 69% humidity.
In comparison, September experiences slightly cooler temperatures, with a minimum of 9°C (49°F) and an average of 20°C (68°F), peaking at 32°C (90°F). Despite the warm max temperature, it tends to be wetter, with precipitation totaling 164 mm (6.4 in) across about 10 days, and humidity levels at 64%. For more detailed insights, you can check the weather in September.
June and October present distinct contrasts in weather conditions. In June, temperatures typically range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), with an average of 22°C (72°F). The month experiences around 87 mm (3.4 in) of precipitation over roughly 8 days, accompanied by a humidity level of 69%. In comparison, October sees cooler temperatures, with highs reaching 23°C (74°F) and lows dipping to 6°C (44°F), averaging around 15°C (59°F). The month is wetter, with 107 mm (4.2 in) of rain spread over 10 days and a higher humidity level of 83%. For more detailed information, you can check the weather in October.
June and November present stark contrasts in weather patterns. June boasts milder temperatures, with averages around 22°C (72°F) and maximums reaching up to 33°C (92°F), while November experiences cooler averages of 11°C (52°F), with highs capping at 20°C (68°F). Precipitation is noticeably higher in November, totaling 176 mm (6.9 in) over 12 days compared to June's 87 mm (3.4 in) over just 8 days. Additionally, humidity levels peak in November at 89%, making the air feel much more damp compared to June's 69%. For more detailed information, check out the weather in November.
June and December exhibit stark contrasts in weather. June typically enjoys warmer temperatures, with an average of 22°C (72°F) and highs reaching up to 33°C (92°F), alongside a moderate humidity level of 69%. In contrast, December experiences much cooler temperatures, averaging around 7°C (44°F), with highs only reaching 15°C (60°F) and lows dipping to -1°C (30°F). The month is also wetter, receiving 150 mm (5.9 in) of precipitation over 12 days, compared to June's 87 mm (3.4 in) across 8 days. For a more detailed look at conditions, you can check the weather in December.
As June unfolds, Koper's weather transforms, welcoming warmer and more temperate days that starkly contrast with the chill of spring. With an average temperature of 22°C and maximums reaching up to 33°C, this month marks the arrival of summer's embrace, making it ideal for outdoor activities. However, the humidity levels hover around 69%, adding a touch of stickiness to the air. While precipitation occurs on about 8 days, the total accumulation is moderate, allowing for plenty of sunshine between the occasional showers. This balance of warmth and humidity sets June apart as a vibrant prelude to the peak summer months, inviting locals and visitors alike to enjoy the beauty of nature. For more information about the region’s Climate, explore the climatic patterns that shape Koper throughout the year.