Last updated: August 27, 2025
Slovenia in May experiences a delightful blend of spring warmth and occasional rain, making it an enchanting time to explore its natural beauty. With maximum temperatures reaching 32°C (89°F) and an average of 16°C (60°F), the climate is typically mild and inviting. However, minimum temperatures can dip to 3°C (37°F), especially in the early mornings. Rainfall is not uncommon, as the month sees an average precipitation amount of 129 mm (5.1 in) spread over 17 days, contributing to lush landscapes and vibrant flora. The humidity level averages around 71%, adding a refreshing feel to the air. Whether you're wandering through charming towns or hiking in scenic national parks, May in Slovenia offers a captivating experience of nature's splendor.
In May, Slovenia experiences a delightful transition into warmer weather, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 32°C (89°F). The average temperature climbs to a comfortable 16°C (60°F), inviting both residents and visitors to enjoy outdoor activities amidst blooming landscapes. This month marks a distinct departure from the chill of winter, as nights are notably milder compared to preceding months. The overall trend of rising temperatures reflects the approach of summer, making May an ideal time for exploring Slovenia's picturesque scenery and vibrant culture. With such variability, it’s the perfect opportunity to experience the country’s natural beauty while basking in pleasant weather.
May brings a significant increase in precipitation to Slovenia, with total rainfall hitting 129 mm (5.1 in) over the course of 17 days. This surge represents a notable rise from the preceding months, where April recorded 60 mm (2.4 in) in just 10 days. As spring transitions into summer, May’s weather often showcases its unpredictable nature, contributing to the lush landscapes that characterize the region. The frequency of rain can be a refreshing change, enhancing the vibrant greenery as nature awakens. This pattern indicates not only the shift towards wetter conditions but also sets the stage for the forthcoming summer months, emphasizing May as a pivotal month in Slovenia’s climatic calendar.
In May, Slovenia experiences a delightful shift in humidity, with levels dropping to 71%, making it one of the more comfortable months of the year. This slight decrease from April's 73% signifies the gradual transition into the warmer season, as the region bids farewell to the high humidity of winter. Following this trend, July and August see even lower humidity levels at 70% and 60% respectively, hinting at a pleasant summer ahead. However, as autumn approaches, humidity begins to rise again, reflecting the seasonal cycle that characterizes Slovenia's climate. Thus, May stands out as a sweet spot of moderate humidity, perfect for enjoying the lush landscapes.
As May unfolds in Slovenia, the UV Index rises dramatically to 8, indicating a very high level of sun exposure risk. This significant jump from April's 6 serves as a clear reminder that spending time outdoors requires extra precautions. With a burn time of just 15 minutes, it's essential to seek shade and apply sunscreen liberally during these early summer days. Interestingly, this trend of increasing UV intensity continues into June, where the UV Index reaches its peak of 9. Comparing this to the beginning of the year, when the UV Index hovered at a low 2 in January, it's evident that outdoor enthusiasts must adapt their sun protection strategies as the season progresses. For more information on UV Index levels throughout the year, check out UV Index.
UV Risk Categories
In May, Slovenia basks in a delightful crescendo of sunshine, marking a peak of 366 hours that heralds the arrival of summer. Following the steady increase from the 163 hours in January, sunlight hours climb significantly, with each month building on the last—a remarkable over 100-hour jump from April’s 332 hours. As the days grow longer and warmer, the sunlight creates an inviting atmosphere, perfect for exploring Slovenia’s stunning landscapes. June continues this upward trend, boasting a magnificent 403 hours, yet May holds a special charm as nature awakens in full bloom, making it a quintessential month for outdoor adventures and soaking up the vibrant rays. This sunshine pattern reflects the transition into more livable and enjoyable temperatures, positioning May as a golden bridge to the sun-drenched summer months ahead.
In May, Slovenia experiences a 38% chance of sunshine, a slight dip compared to the preceding months of March and April, which offer better prospects with 55% and 40% respectively. This trend indicates a transitional period as spring fades and summer approaches. While May might not boast the sunniest weather, it holds its own among the season's charming blooms and refreshing landscapes. Following May, June sees a notable uptick in sunny days, reaching 55%, hinting that the warmth of summer is just around the corner. Thus, while May may be a bit overcast at times, the groundwork is there for brighter days ahead.
As spring gracefully transitions into summer, May in Slovenia is a delightful highlight, boasting 15 hours of daylight. This increase in daylight mirrors the gradual lengthening trend that begins in March with 11 hours and steadily rises through April's13 hours. After reaching its peak in May and maintaining this brightness through June and July, the daylight begins to wane, gently ushering in the shorter days of late summer and fall. As autumn approaches, the daylight diminishes to 12 hours in September, before tapering off to 10 hours in October. Thus, May stands as a pivotal month of brightness and warmth, marking the onset of longer, sun-kissed days in Slovenia.
In May, Slovenia experiences a gentle breeze with an average wind speed of 2.7 m/s (6 mph), which is a slight dip from the increasing gusts of April at 2.8 m/s. This month signifies a transition as spring unfolds, bringing a comfortable atmosphere well-suited for outdoor activities. Following May, the wind speeds begin to decline further into the warmer months, with June recording 2.1 m/s (5 mph). Overall, the wind patterns suggest that while early spring months enjoy a bit more freshness, the summer typically brings calmer conditions, inviting residents and visitors alike to savor the serene beauty of Slovenia.
Weather in varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in , focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January offer starkly contrasting weather conditions. In May, temperatures range from a chilly 3°C (37°F) at night to a warm 32°C (89°F) during the day, with an average temperature of 16°C (60°F). The month is characterized by relatively high humidity at 71% and 129 mm (5.1 in) of precipitation spread over 17 days. In contrast, January experiences much colder temperatures, with lows plummeting to -15°C (5°F) and daily highs reaching only 14°C (58°F), averaging around 1°C (34°F). This winter month sees significantly less rainfall, with only 31 mm (1.2 in) of precipitation across just 6 days, but the humidity remains high at 90%. For more details, you can check the weather in January.
May and February offer starkly contrasting weather conditions. In May, temperatures range from a chilly 3°C (37°F) at night to a warm 32°C (89°F) during the day, with an average of 16°C (60°F). This month also experiences a higher level of precipitation, totaling 129 mm (5.1 in) over approximately 17 days, with a humidity level of 71%. In contrast, February is much colder, with temperatures dipping as low as -12°C (11°F) and peaking at 20°C (68°F), averaging around 4°C (39°F). It sees less precipitation, only 53 mm (2.1 in) across 8 days, and has a higher humidity of 84%. For more detailed insights, you can check out the weather in February.
When comparing the weather in May and March, a stark contrast emerges. May experiences much milder temperatures, ranging from a minimum of 3°C to a maximum of 32°C, with an average of 16°C. In contrast, March can have much colder conditions, with temperatures dropping as low as -18°C and averaging 7°C, peaking at 23°C. Additionally, May sees more rainfall, with 129 mm falling over 17 days compared to March's lighter precipitation of 46 mm over just 9 days. Humidity levels are slightly lower in May at 71%, compared to March's higher humidity of 78%. For a deeper look into the specifics, you can visit weather in March.
When comparing the weather in May to that of April, it's clear that May brings a significant increase in temperatures. While April experiences a minimum of -5°C (24°F) and an average of 12°C (53°F), May's temperatures range from a minimum of 3°C (37°F) to an average of 16°C (60°F), peaking at a warm 32°C (89°F). Additionally, May sees more precipitation, with a total of 129 mm (5.1 in) spread across 17 rainy days, compared to April's 60 mm (2.4 in) over just 10 days. Interestingly, the humidity remains relatively similar, with May at 71% and April slightly higher at 73%. For a detailed look at April's weather, you can check weather in April.
May and June exhibit notable differences in weather patterns. May typically experiences a broader temperature range, with minimums of 3°C (37°F) and maximums reaching 32°C (89°F), while June has milder lows at 7°C (45°F) and warmer highs peaking at 36°C (97°F). Additionally, May sees higher precipitation at 129 mm (5.1 in) over 17 days, compared to June's lighter rainfall of 85 mm (3.3 in) over 13 days. Interestingly, humidity levels remain relatively similar, with June slightly higher at 73% compared to May's 71%. For a more detailed look at the weather in June, you can explore the specifics of this month.
In comparing the weather between May and July, one can notice a significant shift in temperature and precipitation. May experiences a greater range of temperatures, with a minimum of 3°C (37°F) and a maximum of 32°C (89°F), resulting in an average temperature of 16°C (60°F). In contrast, July sees milder minimums at 10°C (50°F) and higher maximums reaching 36°C (97°F), leading to a warmer average of 22°C (72°F). Precipitation also differs, as May is more humid with 129 mm (5.1 in) over 17 days, compared to July, which receives less rainfall at 95 mm (3.7 in) over 12 days. Despite the warmth in July, humidity remains fairly consistent at 70%. For more details on July conditions, you can check out the weather in July.
May and August present quite contrasting weather patterns. In May, temperatures range from a chilly 3°C (37°F) at night to a warm 32°C (89°F) during the day, with an average of 16°C (60°F). This month also sees a significant amount of rainfall, totaling 129 mm (5.1 in) over 17 days, accompanied by a humidity level of 71%. Conversely, August offers milder temperatures, with lows of 9°C (48°F) and highs reaching 37°C (99°F), averaging around 22°C (72°F). Rainfall in August is less frequent, totaling 88 mm (3.5 in) over just 11 days, and the humidity is relatively lower at 60%. For a detailed look at the climate during this month, you can check the weather in August.
May and September display quite similar weather patterns, with both months experiencing minimum temperatures around 3°C (37°F) and 3°C (38°F), respectively. The average temperatures are slightly higher in September, reaching 17°C (62°F) compared to May's average of 16°C (60°F), while the maximum temperatures remain close, with September peaking at 33°C (91°F) and May at 32°C (89°F). In terms of precipitation, May sees slightly more rainfall at 129 mm (5.1 in) over 17 days, compared to September's 125 mm (4.9 in) over just 11 days, suggesting that September is generally a drier month. Additionally, humidity levels are lower in September at 65%, compared to May's 71%, contributing to a more comfortable atmosphere. For more detailed information, you can check the weather in September.
May and October exhibit distinct weather patterns that reflect the transition between spring and autumn. In May, temperatures range from a comfortable minimum of 3°C (37°F) to a warm maximum of 32°C (89°F), with an average temperature of 16°C (60°F). The month is characterized by higher precipitation, totaling 129 mm (5.1 in) over 17 days, and a humidity level of 71%. In contrast, October experiences cooler temperatures with a minimum of 0°C (32°F) and a maximum of 26°C (79°F), leading to an overall average of 12°C (54°F). Precipitation is reduced to 66 mm (2.6 in) across just 9 days, while humidity rises to 84%. For more detailed information about the weather in this month, you can visit weather in October.
May and November present contrasting weather conditions, indicative of their positions within the spring and autumn seasons. In May, temperatures range from a chilly 3°C (37°F) to a warm 32°C (89°F), with an average of 16°C (60°F), allowing for a blend of vibrant spring days. However, this month also sees 129 mm (5.1 in) of precipitation over 17 days, creating a humidity level of 71%. In contrast, November features much cooler temperatures, with lows plummeting to -5°C (23°F) and a more moderate average of 7°C (44°F), peaking at 20°C (68°F). The precipitation is lower at 81 mm (3.2 in) over 10 days, yet the humidity is higher at 89%. Overall, while May is characterized by warmth and variability, November embodies the onset of winter chill and dampness, as detailed in the weather in November.
In May, the weather showcases a significant range in temperatures, with a minimum of 3°C (37°F) and a maximum reaching 32°C (89°F). The average temperature sits comfortably at 16°C (60°F), and the month experiences around 129 mm (5.1 in) of precipitation over 17 days, accompanied by a humidity level of 71%. In contrast, December brings much colder conditions, where temperatures can dip as low as -7°C (20°F), while the maximum reaches only 17°C (63°F) with an average of 3°C (37°F). Precipitation is reduced to 67 mm (2.7 in) over just 8 days, but the humidity rises to 89%, creating a crisp and damp atmosphere. For more details, check out the weather in December.
As May unfolds in Gorisnica, it marks a significant transition from the chill of spring to the warmth of summer. With temperatures reaching a maximum of 32°C (89°F) and an average of 16°C (60°F), this month offers a delightful mix of mild days and occasional heat. However, it's also characterized by high humidity levels at 71%, coupled with frequent precipitation, occurring on about 17 days, resulting in a total of 129 mm (5.1 in) of rainfall. This combination of warmth and moisture distinguishes May from the colder months that precede it, setting the stage for the vibrant growth of summer while maintaining a touch of spring's unpredictability. For further insights into how this climate shapes the region, explore more about the Climate.