Last updated: August 27, 2025
In May, Slovenia experiences a delightful transition into warmer weather, with temperatures peaking at a maximum of 27°C (81°F) and an average of 17°C (63°F), making it a perfect time for outdoor activities. However, the month is characterized by variability, as temperatures can dip to a brisk minimum of 7°C (46°F). Precipitation occurs frequently, totaling 142 mm (5.6 in) over 17 days, resulting in a generally humid environment with levels around 70%. This combination of warmth and moisture fosters lush landscapes, making May an ideal time to explore Slovenia's natural beauty.
In May, Slovenia bids farewell to the lingering chill of winter, welcoming a delightful warming trend that ushers in the joys of late spring. With nighttime temperatures starting at a pleasant 7°C (46°F) and peaking at a comfortable 27°C (81°F) during the day, the average temperature rises to a welcoming 17°C (63°F). This marks a clear step up from April’s milder conditions, highlighting a significant transition as the landscape vibrantly blossoms. As the month progresses, residents and visitors alike can enjoy longer days filled with sunshine, making it an ideal time for outdoor adventures and exploration of Slovenia’s stunning natural beauty.
May marks a significant uptick in precipitation in Slovenia, with 142 mm (5.6 in) of rain recorded over the month, making it the wettest time before summer's drier spell. Notably, rain graces the region for 17 days, which is a considerable increase compared to previous months, reflecting the transition into the lush vibrancy of late spring. This surge in rainfall contributes to the flourishing landscapes, as the consistent moisture supports vibrant flora. As temperatures rise and nature awakens, May’s abundant precipitation lays a fertile foundation, foreshadowing the lush greenery of the summer months ahead.
As spring gives way to early summer in Slovenia, May welcomes a notable shift in humidity levels, dropping to a comfortable 70%. This decrease from 73% in the previous months indicates a trend towards drier conditions as the region transitions into the warmer months. Each year, the humidity gradually declines from the dampness of winter, characterized by January's high of 88%, and February's 82%. By July, the air feels even crisper at 63%, creating an inviting atmosphere for outdoor activities. Despite the steady drop, May remains a pleasant time to experience Slovenia's natural beauty, balancing mild warmth with refreshing breezes.
As May rolls in Slovenia, the UV Index surges to 8, categorizing the exposure as very high. This significant jump from April's UV Index of 6 signals that outdoor enthusiasts should be especially cautious, with a burn time reduced to just 15 minutes. It’s a clear trend that as spring transitions into summer, UV radiation intensifies, highlighting the importance of sun protection. With June and July following closely behind at a UV Index of 9, May serves as a reminder to enjoy the sunshine responsibly. For more detailed information, check out our UV Index.
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As spring gives way to summer in Slovenia, May shines brightly with 372 hours of sunshine, marking a delightful peak in daylight that heralds the outdoor adventures ahead. This month continues the upward trend observed since the start of the year, where hours of sunlight have consistently increased from 182 hours in January to a lush 344 hours in April. The progression not only enhances the natural beauty of Slovenia but also invites locals and visitors alike to embrace the scenic landscapes, partake in vibrant outdoor activities, and enjoy the warmer temperatures. With June to follow, boasting even more hours of sunshine, May serves as a beautiful bridge into the sun-kissed splendor of summer.
As spring transitions towards summer in Slovenia, the likelihood of sunny weather in May hovers around 40%. This marks a slight decline from the higher probabilities seen in March at 63%, but still offers a pleasant mix of sunshine and spring blooms. Following April's 43% chance, May stands as a pivotal month, bridging the gap to the sunnier days of June, which boasts a significantly brighter 55% chance. Although the likelihood dips this month, outdoor enthusiasts can still expect pockets of sunshine amidst the fresh greenery, setting the stage for enjoyable outdoor activities as the season evolves.
As spring unfolds, Slovenia basks in the gradual increase of daylight, culminating in May with an average of 14 hours of sunlight. This charming progression begins in January with just 9 hours, slowly climbing to 10 hours in February and further to 11 by March. By April, the days lengthen significantly, heralding the arrival of warmer weather. The momentum continues into May, where the vibrant days are a joyful precursor to summer, as daylight peaks at 15 hours in June and July. The trend reflects a rhythm of nature, where the longer days of late spring and summer contrast beautifully with the shorter, cozier hours of autumn and winter, making Slovenia a delight for sun-seekers during this time.
In May, the winds in Slovenia steadily pick up, averaging 3.2 m/s (7 mph)—a welcome increase from the slightly calmer preceding months of January through April, where speeds hovered between 2.6 to 3.0 m/s. This gentle but noticeable rise signals a transition into the warmer months, paving the way for pleasant outdoor activities. Following May, wind speed takes a dip in June, dropping to 2.2 m/s (5 mph), contributing to a more tranquil atmosphere as summer begins. The trend of fluctuating wind speeds throughout the year demonstrates the unique climatic rhythm of Slovenia, with breezy days returning in the fall months of October and November, reaching peaks of 3.6 m/s (8 mph) and 3.7 m/s (8 mph), respectively. This dance of wind speed enhances the experience of Slovenia’s diverse seasons, offering both serenity and invigorating breezes as nature transitions from spring to summer and into the autumn.
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 minimum of 7°C (46°F) to a maximum of 27°C (81°F), making it a much warmer month with an average temperature of 17°C (63°F). However, May is also marked by higher precipitation levels, seeing about 142 mm (5.6 in) over 17 days and humidity around 70%. Conversely, January tends to be much colder, with temperatures dipping as low as -7°C (20°F) and averaging only 5°C (41°F). The month experiences significantly lower precipitation of 56 mm (2.2 in) over just 7 days, but with higher humidity at 88%. For more details on the conditions of January, you can refer to the weather in January.
In comparing the weather in May and February, a notable contrast emerges. May experiences milder temperatures with a minimum of 7°C (46°F) and an average of 17°C (63°F), peaking at a warm 27°C (81°F). In contrast, February's temperatures are considerably cooler, with a minimum of -6°C (22°F) and an average of 7°C (44°F), reaching a maximum of only 19°C (67°F). Additionally, May sees higher precipitation levels at 142 mm (5.6 in) over 17 days, compared to February's 118 mm (4.6 in) across just 10 days. Interestingly, February also exhibits higher humidity at 82%, while May's humidity sits at 70%. For more details, you can explore the weather in February.
In comparing the weather in May and March, it's clear that May brings significantly warmer temperatures, with a minimum of 7°C (46°F) and an average of 17°C (63°F), while March's temperatures can dip as low as -7°C (20°F) and average around 9°C (48°F). May also features a higher maximum temperature of 27°C (81°F) compared to March's peak of 21°C (70°F). Furthermore, May experiences more precipitation overall, with 142 mm (5.6 in) over 17 days, while March records 71 mm (2.8 in) over just 8 days. Interestingly, humidity levels are slightly higher in March at 73% compared to May's 70%. For a more detailed look at the weather patterns in March, you can check the statistics here: weather in March.
In comparison to April, May experiences a noticeable increase in temperatures, with minimums rising from 1°C (34°F) to 7°C (46°F) and average highs climbing from 25°C (77°F) to 27°C (81°F). April has a lower average temperature of 13°C (55°F) compared to May's more temperate 17°C (63°F). While both months see considerable precipitation, May is wetter with 142 mm (5.6 in) over 17 days, compared to April's 103 mm (4.0 in) across 10 days. Interestingly, humidity levels in April are slightly higher at 73% compared to May's 70%, making April feel a bit more humid overall. To explore the specifics of April's weather, you can check the weather in April.
In comparing the weather between May and June, one can observe significant changes. May tends to be cooler, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 27°C (81°F) and an average of 17°C (63°F). In contrast, June brings warmer conditions, featuring a minimum temperature of 11°C (53°F), an average of 22°C (72°F), and a peak of 33°C (92°F). Precipitation also decreases notably; May experiences 142 mm (5.6 in) of rainfall over 17 days, while June sees just 87 mm (3.4 in) across 8 days. Humidity levels remain similar, with May at 70% and June slightly lower at 69%. For more detailed insights about weather in June, please visit the link.
May and July present distinct contrasts in weather patterns. May features cooler temperatures, with a minimum of 7°C (46°F) and an average of 17°C (63°F), peaking at 27°C (81°F). The month is also characterized by relatively high humidity at 70% and considerable precipitation, totaling 142 mm (5.6 in) over 17 days. In contrast, July offers a warmer climate with a minimum of 16°C (61°F) and an average of 24°C (75°F), reaching a high of 33°C (91°F). Notably, July experiences significantly less rainfall, amounting to 65 mm (2.6 in) over just 8 days, and lower humidity at 63%. For more details about the conditions in July, visit weather in July.
May and August present quite contrasting weather patterns. In May, temperatures start off relatively cool, with minimums around 7°C (46°F) and averaging 17°C (63°F), peaking at 27°C (81°F). The month sees substantial precipitation, averaging 142 mm (5.6 in) over 17 days, contributing to a humid environment with 70% humidity. In stark contrast, August enjoys warmer conditions, with minimum temperatures at 15°C (59°F) and an average high settling at 25°C (77°F), occasionally reaching up to 34°C (94°F). With only 70 mm (2.7 in) of rainfall spread over just 7 days and a lower humidity of 51%, August offers a much drier and warmer experience. For a closer look at August's weather specifics, you can refer to this link: weather in August.
May and September present distinct weather characteristics that showcase the transition of spring to early autumn. In May, temperatures range from a cooler minimum of 7°C (46°F) to a pleasant maximum of 27°C (81°F), with an average of 17°C (63°F). The month experiences considerable rainfall, totaling 142 mm (5.6 in) over approximately 17 days, accompanied by a relatively high humidity level of 70%.
In contrast, September marks the arrival of warmer temperatures, with a minimum of 9°C (49°F), an average of 20°C (68°F), and a peak of 32°C (90°F). While it sees slightly more precipitation—164 mm (6.4 in)—it occurs over fewer days, around 10, resulting in lower humidity at 64%. For a detailed insight into the weather conditions, you can check out the weather in September.
May and October exhibit distinct weather characteristics as they transition between spring and autumn. In May, temperatures range from a minimum of 7°C (46°F) to a maximum of 27°C (81°F), with an average of 17°C (63°F). The month is marked by relatively high humidity at 70% and significant rainfall, totaling 142 mm (5.6 in) over 17 days. In contrast, October experiences cooler average temperatures, peaking at 23°C (74°F) and dropping to a minimum of 6°C (44°F), with an overall average of 15°C (59°F). Precipitation is also lower in October at 107 mm (4.2 in) spread over just 10 days, yet humidity rises to 83%. For a more detailed look at October's weather, check out weather in October.
May and November present strikingly different weather patterns. In May, temperatures range from a mild minimum of 7°C (46°F) to a warm maximum of 27°C (81°F), with an average of 17°C (63°F). The humidity is moderate at 70%, and although there's a fair amount of rainfall, totaling 142 mm (5.6 in) over 17 days, the weather remains quite pleasant as spring transitions into summer. In contrast, November sees considerably lower temperatures, with a minimum of 1°C (34°F) and an average of 11°C (52°F), peaking at 20°C (68°F). This month is also wetter, experiencing higher precipitation of 176 mm (6.9 in) across 12 days, alongside increased humidity at 89%. For more details, check out the weather in November.
May and December present contrasting weather patterns. In May, temperatures range from a mild 7°C (46°F) to a warm 27°C (81°F), with an average of 17°C (63°F), while December experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 15°C (60°F), averaging just 7°C (44°F). May also sees more pleasant conditions with lower humidity at 70% and significant precipitation of 142 mm (5.6 in) over 17 days. In contrast, December is characterized by higher humidity levels at 88% and slightly more precipitation, totaling 150 mm (5.9 in) across 12 days. For more details, you can check the weather in December.
As spring transitions into summer, May brings a delightful warmth to the air, with average temperatures rising notably compared to the cooler months. However, the weather remains unpredictable—frequent showers contribute to higher precipitation totals, making the month one of the wetter periods of the year. Humidity levels also peak, lending a fresh, lush feel to the landscape. This blend of warmth and moisture creates an inviting atmosphere for both nature and outdoor enthusiasts. For a more comprehensive understanding of the weather patterns and their implications, explore the detailed Climate information.