Last updated: August 21, 2025
May in Sveti Vlas, Bulgaria offers a delightful spring experience characterized by mild temperatures and moderate humidity. With a maximum temperature reaching 27°C (81°F) and an average of 16°C (62°F), the weather is perfect for outdoor activities. However, cool evenings can dip as low as 7°C (45°F). This month sees 46 mm (1.8 in) of rain spread over 8 days, adding a refreshing touch to the vibrant landscape. Revel in the alluring blend of sun and gentle showers that define this picturesque coastal destination during May.
May marks a delightful transition in Sveti Vlas, Bulgaria, as spring gracefully blossoms into early summer. With minimum temperatures rising to 7°C (45°F) and average highs reaching a pleasant 27°C (81°F), the month offers a perfect balance of warmth and mildness. This is evident as the average temperature climbs to 16°C (62°F), setting the stage for outdoor activities and seaside adventures. Following the cooler early months, May's increasing warmth invites both locals and tourists to enjoy the beautiful landscapes, vibrant blooming flowers, and the allure of the coastline. It's a time when Sveti Vlas truly begins to shine, making it an ideal spot to relish the beauty of spring before the summer heat peaks.
May in Sveti Vlas, Bulgaria, marks the transition into the warmer months, with precipitation recording 46 mm (1.8 in) over 8 days. This relatively moderate rainfall, sitting in the lower range for the spring months, suggests a blend of sunny and rainy spells as the region gears up for summer. Compared to April, which had 40 mm (1.6 in), May sees a slight increase in moisture, hinting at the lush greenery beginning to flourish. The rainfall patterns indicate that while the days are warming up, home to longer sunshine hours, the occasional showers still play a crucial role in maintaining the area’s vibrant landscape, leading into June, which typically brings much heavier rainfall at 82 mm (3.2 in) across 14 days. This gradual increase in precipitation reflects the changing climate, enhancing the beauty of Sveti Vlas as it transitions into the lively summer season.
As May unfolds in Sveti Vlas, Bulgaria, the humidity hovers around 77%, marking a slight rise from the previous months. This increase is part of a gradual trend observed from the crisp, cooler days of winter, where humidity levels peaked at 84% in January, to the more temperate spring months. Although May's humidity is higher than that of April's 75%, it sets the stage for the summer months ahead, where June dips to 71% and continues to decline into the heart of summer. With May serving as a transitional month, visitors can expect a refreshing coastal atmosphere, as the lush landscapes bloom while the humidity remains manageable and pleasant.
As May unfolds in Sveti Vlas, Bulgaria, the UV Index soars to 8, placing it in the very high exposure category with a burn time of just 15 minutes. This trend reflects the gradual intensification of sunlight as spring transitions into summer, with the UV Index climbing steadily from 2 in January to a peak of 9 in June and July. The shift from moderate to high values in the earlier months underscores the importance of sun protection, as outdoor enthusiasts must now be more vigilant. May’s higher index serves as a reminder to embrace safety measures while enjoying the vibrant sun-soaked days by the Black Sea. For those looking to bask in the sunshine responsibly, detailed information can be found at Sveti Vlas UV Index.
UV Risk Categories
As spring transitions into summer, Sveti Vlas, Bulgaria, basks in an abundance of sunshine, with May standing out as a highlight. This month enjoys 396 hours of glorious sun, a significant increase from the previous months, signaling the arrival of warmer weather and longer days. Following the gradual rise from 165 hours in January to 349 hours in April, May marks a delightful peak that sets the stage for even sunnier days ahead. The trend continues into June and July, where sunshine hours reach their zenith, but May remains a enchanting time for outdoor activities and soaking in the beauty of this coastal gem. As the season unfolds, you can feel the vibrancy of life blossom under the sunlit skies of Sveti Vlas.
As May approaches in Sveti Vlas, Bulgaria, the promise of sunny days becomes increasingly likely, with a 46% chance of sunshine—the highest of the spring months. This uptick in beautiful weather follows a steady climb from January's chilly 28% to April's refreshing 44%, signaling a shift toward the warmth of summer. Interestingly, this trend peaks in the summer months, where July and August boast stunning probabilities of 77% and 75% respectively. Thus, May serves as a delightful prelude to the sun-soaked summer, inviting visitors to bask in the improve chances of pleasant weather as nature comes alive.
As spring transitions to summer, Sveti Vlas, Bulgaria experiences a remarkable increase in daylight duration. Starting from 9 hours in January, the days gradually lengthen, making way for shorter nights and longer sunlit moments. By May, daylight extends to 14 hours, ushering in vibrant days that encourage outdoor activities and social gatherings. This trend continues into June, peaking at 15 hours of daylight before slightly tapering off in the following months. As the summer fades into autumn, the daylight hours gradually decline, yet the warm, sun-drenched days of late spring and early summer create a captivating backdrop for exploration and leisure by the sea.
In Sveti Vlas, Bulgaria, the winds of May offer a gentle embrace, with an average speed of 3.2 m/s (7 mph). This slight uptick from the 2.9 m/s (7 mph) in April marks a seasonal transition as spring gives way to the early hints of summer. While January and October boast the strongest gusts at 4.5 m/s (10 mph) and 4.6 m/s (10 mph) respectively, May's breezy presence enhances the region's charm without overwhelming warmth. Interestingly, the months leading into and out of May, such as March and June, feature similar wind conditions, suggesting a trend of stability in spring's breezes. Overall, May's calm yet refreshing winds are perfect for outdoor exploration, contributing to the pleasant atmosphere that defines this beautiful coastal town.
Weather in Sveti Vlas varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sveti Vlas, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present contrasting weather patterns, with May experiencing milder temperatures and more pleasant conditions. In May, temperatures range from a minimum of 7°C (45°F) to an average of 16°C (62°F), with a maximum of 27°C (81°F). The humidity is relatively high at 77%, but the overall feel is much more comfortable, with only 46 mm of precipitation over 8 days.
In contrast, January features much colder weather, with temperatures dipping as low as -10°C (14°F) and averaging around 4°C (39°F). The maximum temperature in January reaches only 16°C (61°F), but the higher humidity at 84% makes the cold feel even more biting. Additionally, January sees slightly more precipitation at 66 mm over the same number of days. For a detailed comparison of January weather in specific regions, you can refer to Sveti Vlas weather in January.
In comparing the weather of May and February, it's clear that May offers a much warmer experience, with average temperatures ranging from a minimum of 7°C (45°F) to a pleasant maximum of 27°C (81°F). In contrast, February features much colder temperatures, dipping as low as -5°C (23°F) and only reaching a maximum of 17°C (63°F). Both months see similar levels of precipitation, with May receiving 46 mm (1.8 in) over 8 days and February slightly higher at 48 mm (1.9 in) over 7 days. Additionally, February exhibits higher humidity at 81% compared to May's 77%, making the air feel quite different in these two months. For more detailed insights, you can check out Sveti Vlas weather in February.
May generally experiences milder and more pleasant weather compared to March. With an average temperature of 16°C (62°F) and maximum highs reaching 27°C (81°F), May is significantly warmer than March, where temperatures average around 7°C (45°F) and peak at 19°C (67°F). While both months have comparable precipitation days, May receives slightly less rainfall at 46 mm (1.8 in) over 8 days, compared to March's 57 mm (2.3 in) over 9 days. Humidity levels are also quite similar, with May at 77% and March at 79%. For more detailed insights into the weather conditions during March, you can refer to Sveti Vlas weather in March.
In May, the weather in Sveti Vlas becomes noticeably warmer compared to April, with minimum temperatures rising from 2°C (36°F) to 7°C (45°F), and the average temperature increasing from 10°C (51°F) to 16°C (62°F). The maximum temperature in May can reach as high as 27°C (81°F), while in April it peaks at 23°C (73°F). Additionally, May experiences slightly more precipitation, totaling 46 mm (1.8 in) over 8 days, compared to April’s 40 mm (1.6 in) over 7 days. The humidity also sees a slight increase from 75% in April to 77% in May. For a more detailed look at the weather in April, you can visit Sveti Vlas weather in April.
May and June offer distinct weather contrasts. In May, temperatures range from a cooler minimum of 7°C (45°F) to a pleasant average of 16°C (62°F) and peak at a warm 27°C (81°F). The month experiences moderate precipitation, totaling 46 mm (1.8 in) over about 8 days, with humidity levels at 77%, contributing to a somewhat spring-like feel.
In contrast, June brings warmer conditions, with temperatures starting at a minimum of 12°C (53°F) and averaging 21°C (70°F), climbing to a higher maximum of 30°C (87°F). This month also sees an increase in precipitation, averaging 82 mm (3.2 in) across 14 days, but with a lower humidity level of 71%, making the air feel more comfortable. For a detailed look at the weather in June, check out Sveti Vlas weather in June.
In May, the weather is characterized by a wide range of temperatures, with a minimum of 7°C (45°F) and a maximum of 27°C (81°F), averaging around 16°C (62°F). This month experiences a fair amount of rain, totaling 46 mm (1.8 in) across approximately 8 days, and humidity levels are relatively high at 77%. In contrast, July brings warmer conditions, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 33°C (91°F), averaging 23°C (75°F). While July sees slightly more precipitation at 50 mm (2.0 in) over 7 days, the humidity drops to 69%. For a more detailed look at July conditions, you can check out Sveti Vlas weather in July.
In May, the weather is characterized by cooler temperatures with a minimum of 7°C (45°F) and an average of 16°C (62°F). The month sees a maximum temperature reaching 27°C (81°F) and experiences significant precipitation, averaging 46 mm (1.8 in) over about 8 days, alongside higher humidity levels at 77%. In contrast, August offers much warmer conditions with a minimum temperature of 16°C (62°F) and an average of 24°C (76°F), peaking at 33°C (91°F). This month has notably less precipitation, with only 15 mm (0.6 in) spread over just 3 days, and the humidity drops to 60%. For further details on August weather, you can check out Sveti Vlas weather in August.
May and September present distinct contrasts in weather conditions. In May, temperatures range from a cool minimum of 7°C (45°F) to a mild maximum of 27°C (81°F), with an average of 16°C (62°F). This month sees about 46 mm (1.8 in) of precipitation over 8 days and experiences relatively high humidity at 77%. In contrast, September enjoys warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to a high of 30°C (86°F) and an average of 21°C (69°F). Rainfall significantly decreases to 22 mm (0.9 in) over just 5 days, and humidity also lowers to a more comfortable 63%. For more details on the weather this month, you can check Sveti Vlas weather in September.
When comparing the weather in May and October, both months exhibit similar temperature ranges, with minimum temperatures around 7°C (45°F) and maximums reaching up to 27°C (81°F). However, May enjoys a slightly higher average temperature of 16°C (62°F) compared to October's 15°C (60°F). In terms of precipitation, October receives more rainfall, totaling 69 mm (2.7 in) across 7 days, whereas May experiences 46 mm (1.8 in) across 8 days. Humidity levels are relatively comparable, with May slightly higher at 77% and October at 76%. For a detailed look at October's weather specifically, you can visit Sveti Vlas weather in October.
In comparing the weather of May and November, we see a distinct transition from the warmth of late spring to the chill of late autumn. May enjoys a more temperate climate with average temperatures reaching around 16°C (62°F) and highs up to 27°C (81°F), alongside lower humidity at 77% and relatively mild rainfall of 46 mm (1.8 in) over 8 days. In contrast, November presents cooler conditions, with average temperatures dipping to 11°C (52°F) and a maximum of 23°C (74°F). The humidity increases slightly to 81%, while precipitation becomes a bit more pronounced at 59 mm (2.3 in) also over 8 days. For a more detailed look at the weather in November, you can view it here: Sveti Vlas weather in November.
May and December in Sveti Vlas present two distinct seasons. In May, the weather is generally mild with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 27°C (81°F), while the average daily temperature hovers around 16°C (62°F). The precipitation in May is relatively low at 46 mm (1.8 in) over about 8 days, and humidity sits at a comfortable 77%.
In contrast, December experiences much colder temperatures, with a minimum of -5°C (24°F) and a maximum of 19°C (66°F), resulting in a much cooler average of 7°C (45°F). This month also sees increased precipitation at 75 mm (2.9 in) spread over 10 days, coupled with higher humidity levels at 84%. For more detailed information, you can check Sveti Vlas weather in December.
As spring unfolds in Sveti Vlas, May brings a delightful shift in weather, offering warmer temperatures and the blooming of vibrant landscapes. With an average temperature that starts to climb towards a comfortable 16°C, outdoor activities become more appealing. Although rain may grace the area for about 8 days, the overall humidity remains manageable at 77%, allowing visitors to enjoy pleasant strolls by the seaside. Compared to the cooler, wetter months of early spring, May is a tantalizing glimpse into the approaching summer, making it an ideal time to experience the charm of this coastal gem. For a more detailed understanding of what to expect, explore Sveti Vlas Climate.