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 May rolls into Slovenia, outdoor enthusiasts need to be mindful of the soaring UV Index, which reaches a notable 8, categorizing it as very high. This marks a significant leap from the previous months, where the index hovered around a moderate to high range. With a burn time of just 15 minutes, it's essential to protect your skin adequately during this time. The trend continues into June and July, where the UV Index peaks at 9. Following a warm May, the decline in UV exposure begins in September, shifting back to high and moderate categories. For more detailed information, visit UV Index.
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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 present strikingly different weather conditions. In May, temperatures range from a chilly 3°C (37°F) to a warm 31°C (88°F), with an average of 15°C (59°F). The month sees approximately 138 mm (5.4 in) of precipitation over about 17 days, accompanied by a humidity level of 71%. In contrast, January offers a much colder climate, with temperatures ranging from a frigid -17°C (1°F) to a maximum of 14°C (57°F), and an average temperature of 0°C (33°F). Precipitation is significantly lower in January, totaling around 34 mm (1.3 in) across just 6 days, but the humidity is relatively high at 90%. For more detailed information, you can refer to weather in January.
May and February showcase stark contrasts in weather patterns. In May, temperatures range from a cool 3°C (37°F) at night to a warm 31°C (88°F) during the day, averaging around 15°C (59°F). However, this month also brings substantial precipitation, with 138 mm (5.4 in) of rain expected over 17 days, contributing to a humidity level of 71%. In contrast, February sees significantly lower temperatures, with nighttime lows plummeting to -12°C (11°F) and daytime highs capping at 20°C (68°F), leading to an average temperature of just 4°C (39°F). February experiences less precipitation, amounting to 58 mm (2.3 in) over only 9 days, alongside a higher humidity level of 84%. For more details, you can check the weather in February.
In comparing the weather between May and March, it's clear that May offers a much warmer and more variable climate. May sees temperatures ranging from a chilly minimum of 3°C (37°F) to a balmy maximum of 31°C (88°F), with an average of 15°C (59°F). However, it also experiences significant rainfall, recording 138 mm (5.4 in) over approximately 17 days. In contrast, March presents a cooler atmosphere with temperatures dipping as low as -18°C (0°F) and peaking at 22°C (72°F), averaging around 6°C (43°F). Precipitation is also less frequent during March, with only 52 mm (2.1 in) over 9 days. The humidity is slightly higher in March at 78%, compared to May's 71%. For a detailed look at the weather patterns in March, you can check out weather in March.
May generally offers warmer temperatures compared to April, with average highs reaching 15°C (59°F) and maximums soaring up to 31°C (88°F), while April's max temperature is a cooler 27°C (81°F). However, April experiences a broader temperature range with minimums dipping to -7°C (19°F), whereas May's minimum stays milder at 3°C (37°F). In terms of precipitation, May is significantly wetter, with 138 mm (5.4 in) over 17 rainy days, compared to April's 72 mm (2.9 in) across 11 days. Interestingly, though humidity remains similar between the two months, April has slightly higher humidity at 73%. For more detailed insights, you can check the weather in April.
May and June showcase a gradual transition in weather patterns. In May, temperatures range from a chilly 3°C (37°F) at night to a warm 31°C (88°F) during the day, with an average of 15°C (59°F). It is also a relatively wet month, receiving 138 mm (5.4 in) of rain over 17 days, while humidity sits at 71%.
In contrast, June brings slightly milder minimum temperatures of 7°C (45°F) and higher maximums reaching up to 36°C (96°F), with an average temperature of 20°C (69°F). The month is drier, with 93 mm (3.7 in) of rainfall over just 13 days, paired with a slightly higher humidity level of 73%. For more detailed insights, you can explore the weather in June.
May and July exhibit notable differences in weather patterns. In May, temperatures range from a chilly 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 also experiences significant rainfall, totaling 138 mm (5.4 in) over 17 days, accompanied by a humidity level of 71%. In contrast, July is generally warmer, with a minimum temperature of 9°C (49°F) and a maximum of 35°C (94°F), leading to a milder average of 21°C (70°F). Precipitation decreases slightly to 114 mm (4.5 in) over 14 days, and humidity remains similar at 70%. For more details, you can check the weather in July.
May and August present quite distinct weather patterns. In May, temperatures range from a chilly minimum of 3°C (37°F) to a warm maximum of 31°C (88°F), with an average of around 15°C (59°F). The month experiences significant rainfall, with 138 mm (5.4 in) spread over 17 days and relatively high humidity at 71%. In contrast, August offers milder and more stable weather, featuring a warmer average temperature of 21°C (71°F), reaching a high of 36°C (97°F) and a low of 7°C (46°F). Precipitation decreases to 103 mm (4.0 in) over only 11 days, with lower humidity at 60%. For more detailed information, you can check the weather in August.
May and September both feature mild temperatures, but they have subtle differences that distinguish the two months. In May, the average temperature hovers around 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dipping to 3°C (37°F). The month experiences around 138 mm (5.4 in) of precipitation over 17 days, resulting in a relatively humid atmosphere with a humidity level of 71%.
In contrast, September offers a slightly warmer average of 16°C (61°F), with highs peaking at 32°C (89°F) while still maintaining the same minimum temperature of 3°C (37°F). Although September has a bit more precipitation at 145 mm (5.7 in), it falls over fewer days, only 12, contributing to a lower humidity level of 65%. For more details, you can check the weather in September.
May and October present contrasting weather patterns that reflect the transition from spring to autumn. In May, temperatures 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 is relatively wet, receiving 138 mm (5.4 in) of precipitation over 17 days, accompanied by a humidity level of 71%. In contrast, October features cooler temperatures, with a minimum of -1°C (31°F), an average of 11°C (53°F), and a maximum of 25°C (78°F). The amount of precipitation also decreases to 69 mm (2.7 in) across just 9 days, and humidity rises to 84%. These variations highlight the shift towards chillier, wetter conditions as the year draws to a close, making weather in October distinctly different from May.
May and November present contrasting weather conditions, reflecting the transition from spring to late fall. In May, temperatures 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). This month experiences significant rainfall, totaling 138 mm (5.4 in) over about 17 days, accompanied by a humidity level of 71%. In contrast, November is much cooler, with temperatures ranging from -5°C (23°F) to a maximum of 20°C (68°F) and an average of 6°C (43°F). It sees less precipitation at 87 mm (3.4 in) over 10 days, but the humidity is higher at 89%. For more detailed insights, you can check the weather in November.
May and December present contrasting weather conditions. In May, temperatures range from a minimum of 3°C (37°F) to a warm average of 15°C (59°F), making it a comfortable spring month, with occasional highs reaching up to 31°C (88°F). However, this month is also marked by significant rainfall, totaling 138 mm (5.4 in) over 17 days, and a humidity level of 71%.
Conversely, December experiences much colder temperatures, with a minimum of -9°C (15°F) and an average around 2°C (36°F), peaking at a maximum of 16°C (62°F). Precipitation is lighter, amounting to 71 mm (2.8 in) over just 9 days, but the humidity is higher at 89%. For a detailed look at December weather, see weather in December.
As May unfolds, it brings a refreshing blend of warmth and moisture, distinctly differing from the chillier early months of the year. With temperatures reaching a maximum of 31°C (88°F), the month marks a significant transition towards summer, encouraging lush greenery and vibrant blooms. However, May also witnesses notable rainfall, accumulating around 138 mm over 17 days, which enhances the natural beauty but can lead to a humid feel, averaging 71%. This combination of warmth and precipitation sets May apart as a vibrant and dynamic month, laying the groundwork for the sunny days of summer ahead. For a deeper dive into the weather trends, explore our detailed Climate section.