Last updated: August 27, 2025
In May, Slovenia experiences a vibrant transition into spring, with temperatures reaching a maximum of 31°C (88°F), while averaging around 15°C (59°F). The month showcases a minimum temperature of 3°C (37°F), making it a time of diverse weather fluctuations. Rainfall is quite prominent, with a total of 138 mm (5.4 in) over 17 days, contributing to the lush landscapes the country is known for. Coupled with a humidity level of 71%, May in Slovenia presents a refreshing blend of warmth and moisture, making it a perfect month for outdoor exploration and enjoying nature's beauty.
As spring transitions into summer, May brings a refreshing warmth to Slovenia. With minimum temperatures rising to around 3°C (37°F) and average daily highs climbing to a comfortable 15°C (59°F), it’s a delightful time for outdoor activities. The peak temperature can hit an impressive 31°C (88°F), showcasing a significant leap from the cooler April averages. This shift not only indicates longer days but also a vibrant natural landscape awakening, making May an ideal month for exploring Slovenia's breathtaking scenery. Visitors can expect pleasant weather, perfect for wandering through charming towns or enjoying the stunning vistas of Slovenia's countryside. With each passing day, the warmth enhances the allure of this beautiful country, inviting travelers to embrace the beauty of spring in full bloom.
May in Slovenia is characterized by a significant uptick in precipitation, receiving 138 mm (5.4 in) of rain over an average of 17 days. This marks a striking increase compared to the preceding months, with April having recorded only 72 mm (2.9 in) across 11 days. The shift toward wetter conditions during May sets the stage for a lush and vibrant landscape, as nature awakens fully in spring. Following the trend, the higher precipitation in May not only supports the flourishing flora but also contributes to the overall hydrological cycle, ensuring that June follows with a decrease to 93 mm (3.7 in). As we analyze the monthly averages, May stands out as a pivotal point in Slovenia's transition to the warmer, rainier months of the year.
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 spring transitions into summer, the UV Index in Slovenia reaches a significant peak in May, registering 8—putting it in the very high exposure category. This swift increase from April’s 6 indicates that sun protection becomes essential, with a notably shorter burn time of just 15 minutes. This trend of escalating UV exposure continues into June and July, where the index remains at 9, highlighting the need for vigilance in sun safety during these months. As the bright days lengthen, be prepared to take necessary precautions, and feel free to explore more about the UV Index for your day-to-day activities.
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As spring reaches its zenith in May, Slovenia basks in a radiant 363 hours of sunshine, marking a significant leap from the 334 hours recorded in April. This progressive increase in sunlight hours reflects a charming trend as the days grow longer and warmer, inviting visitors to explore the country's stunning landscapes and vibrant culture. Following May, June continues this sunny trajectory with an impressive 401 hours, peaking in July at 422 hours. The warmth begins to wane in the latter months, with September's 318 hours signifying the gentle transition into autumn. Overall, the sunshine trend encapsulates Slovenia's seasonal rhythm, where the vibrant spring and summer months promise delightful outdoor adventures under its bright, inviting skies.
In Slovenia, May offers a moderate chance of sunny weather, with about 37% likelihood of clear skies. While this marks a slight dip from April's sunnier days at 38%, it’s notable that May maintains a consistent probability of sunshine, aligning closely with the trends seen in the earlier spring months like March (54%) and February (50%). As the region transitions into summer, the sun's presence becomes more frequent, with a significant jump in sunny days expected in June (53%). Overall, while May may not be the sunniest month, it retains its charm, offering a balanced mix of warmth and potential for beautiful weather, making it a delightful time to explore Slovenia.
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 pleasant shift in wind patterns, with an average wind speed of 2.6 m/s (6 mph), matching the gentle breezes of April. This slight uptick maintains a comfortable outdoor atmosphere, perfect for exploring the region’s vibrant landscapes. As the seasons transition, the wind speeds tend to decrease heading into June, dropping to 2.0 m/s (4 mph). Interestingly, May stands out as one of the months with the highest average winds, hinting at a refreshing burst of spring’s energy before the calmer days of summer take hold. Each year’s cycle reveals these trends, offering a charming rhythm to Slovenia’s weather that beckons both locals and tourists alike to embrace the fresh air and natural beauty of the month.
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 showcase strikingly different weather patterns. In May, temperatures range from a cool minimum of 3°C (37°F) to a warm maximum of 31°C (88°F), with an average of 15°C (59°F). This month sees about 138 mm (5.4 in) of precipitation over 17 days, contributing to a moderate humidity level of 71%. In contrast, January is characterized by much colder weather, with temperatures dropping as low as -17°C (1°F), averaging around 0°C (33°F), and peaking at 14°C (57°F). The month experiences significantly less precipitation, totaling 34 mm (1.3 in) over just 6 days, but it boasts a high humidity of 90%. For a deeper understanding of January’s conditions, you can explore more about the weather in January.
When comparing the weather in May and February, it's clear that May offers a much warmer climate with average temperatures around 15°C (59°F) and highs reaching up to 31°C (88°F). In contrast, February sees much colder temperatures, with lows plummeting to -12°C (11°F) and an average of only 4°C (39°F). While May brings significantly more precipitation with 138 mm (5.4 in) over 17 days, February has a notably drier climate, with just 58 mm (2.3 in) over 9 days. Furthermore, February's humidity level is higher at 84%, compared to 71% in May. For more detailed insights on February weather, check out weather in February.
Comparing the weather in May and March reveals distinct seasonal contrasts. In March, temperatures range from a chilly minimum of -18°C (0°F) to a more moderate maximum of 22°C (72°F), with an average of 6°C (43°F). The month also experiences lower precipitation, totaling 52 mm (2.1 in) over 9 days, paired with a higher humidity level of 78%. In stark contrast, May showcases a much warmer climate, with temperatures fluctuating from a minimum of 3°C (37°F) to a maximum of 31°C (88°F) and an average of 15°C (59°F). Although May sees increased precipitation of 138 mm (5.4 in) over 17 days, the humidity decreases to 71%. For a more detailed look at the weather in March, you can visit weather in March.
In comparing the weather between April and May, we see a notable shift in temperatures and precipitation patterns. April experiences colder temperatures, with a minimum of -7°C (19°F) and an average of 11°C (52°F), while May showcases a warmer climate, ranging from a minimum of 3°C (37°F) to an average of 15°C (59°F) and peaking at 31°C (88°F). Additionally, May is much wetter, receiving 138 mm (5.4 in) of rainfall over 17 days compared to April's 72 mm (2.9 in) over 11 days. Humidity levels remain relatively consistent, with April at 73% and May slightly lower at 71%. For more details on April's weather, you can check weather in April.
May and June show a notable shift in weather patterns. May experiences a broader temperature range, with minimums dipping to 3°C (37°F) and maximums reaching up to 31°C (88°F), resulting in an average temperature of 15°C (59°F). However, May also sees higher precipitation, with 138 mm (5.4 in) over 17 days. In contrast, June offers warmer conditions with minimum temperatures of 7°C (45°F) and maximums soaring to 36°C (96°F), leading to a comfortable average of 20°C (69°F). Rainfall decreases to 93 mm (3.7 in) occurring over just 13 days, while humidity remains relatively consistent at 73%. For a detailed look at this month's climate, visit weather in June.
In May, temperatures range from a cool minimum of 3°C (37°F) to a warm maximum of 31°C (88°F), with an average of 15°C (59°F). The month is relatively wet, featuring 138 mm (5.4 in) of precipitation over 17 days and maintaining a humidity level of 71%. In contrast, July offers a warmer climate, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 35°C (94°F) and an average of 21°C (70°F). The precipitation in July is lower at 114 mm (4.5 in) spread over 14 days, and humidity is slightly reduced at 70%. For more detailed information, you can check the weather in July.
In May, temperatures range from a cool 3°C (37°F) at night to a warm 31°C (88°F) during the day, with an average temperature of 15°C (59°F). The month experiences considerable rainfall, receiving 138 mm (5.4 in) over 17 days, contributing to a higher humidity level of 71%. In contrast, August boasts milder nights with a minimum of 7°C (46°F) and hotter days peaking at 36°C (97°F), resulting in a warmer average of 21°C (71°F). Rainfall in August is less frequent, totaling 103 mm (4.0 in) across just 11 days, and the humidity drops to a more comfortable 60%. For a detailed overview, you can check the weather in August.
May and September present a transition between seasons, each offering unique weather characteristics. In May, temperatures generally range from a minimum of 3°C (37°F) to a maximum of 31°C (88°F), with an average of 15°C (59°F). The month experiences a significant amount of rainfall, totaling 138 mm (5.4 in) over 17 days, combined with a relatively high humidity level of 71%. Conversely, September sees a slightly warmer average temperature of 16°C (61°F) and a peak temperature of 32°C (89°F), while still maintaining a minimum of 3°C (37°F). Precipitation in September rises to 145 mm (5.7 in) but occurs over fewer days, only 12. The humidity drops to 65%, making the weather feel a bit more comfortable. For a detailed overview, you can check the weather in September.
May and October present quite different weather patterns. In May, temperatures range from a cool 3°C (37°F) at night to a warm average of 15°C (59°F) during the day, occasionally peaking at 31°C (88°F). The month is relatively wet, with 138 mm (5.4 in) of precipitation spread over 17 days and average humidity sitting at 71%. In contrast, October sees cooler temperatures, with nighttime lows dropping to -1°C (31°F) and an average of 11°C (53°F) during the day, reaching a maximum of 25°C (78°F). Rainfall is significantly less at 69 mm (2.7 in) over 9 days, accompanied by higher humidity at 84%. For more detailed information, you can check the weather in October.
May and November present distinctly varied weather patterns. In May, temperatures range from a mild 3°C (37°F) to a warm 31°C (88°F), with an average of 15°C (59°F). The month sees considerable precipitation, totaling 138 mm (5.4 in) over 17 days, and a humidity level of 71% that adds a touch of freshness. In contrast, November's temperatures dip significantly, with a minimum of -5°C (23°F) and a cooler average of 6°C (43°F), peaking at 20°C (68°F). This month is characterized by less precipitation at 87 mm (3.4 in) over just 10 days, but features higher humidity levels at 89%. For a deeper look at the weather in November, visit the link provided.
May and December present contrasting weather conditions. In May, temperatures range from a chilly 3°C (37°F) at night to a warm average of 15°C (59°F) during the day, peaking at a sweltering 31°C (88°F). This month also sees considerable rainfall, totaling 138 mm (5.4 in) across 17 days, with a humidity level of 71%. In contrast, December is much cooler, with nighttime lows dropping to -9°C (15°F) and a daily average of only 2°C (36°F), while the maximum temperature reaches 16°C (62°F). Precipitation is less frequent in December, with 71 mm (2.8 in) falling over just 9 days and humidity levels rising to 89%. For more details on the chilling conditions, you can visit weather in December.
As spring unfolds, May brings a delightful shift in weather, boasting milder temperatures that set a stark contrast to the chill of early months. With an average temperature of 15°C, this month ushers in warmer days while still juxtaposing cooler nights, occasionally dipping down to a refreshing 3°C. Humidity levels hover around 71%, giving the air a vibrant feel as nature comes alive. However, May also sees abundant rainfall, with precipitation occurring on nearly half the days of the month. This unique blend of warmth and moisture makes May a transformative time, paving the way for the sunnier days of summer ahead. For a comprehensive overview of how these patterns fit into the yearly cycle, check out our detailed Climate guide.