Last updated: August 27, 2025
Experience the delightful May weather of Saint Petersburg, Russian Federation, where temperatures exhibit a charming range, peaking at a maximum of 27°C (80°F) while settling at an average of 10°C (50°F) during the day. This month marks a shift from the lingering cold, with minimum temperatures dropping to -2°C (29°F). Expect a moderate amount of precipitation, totaling 48 mm (1.9 in) over approximately 9 rainy days, adding a refreshing element to the city’s lush surroundings. With a humidity level of 74%, May in Saint Petersburg is a season of blossoming beauty, inviting both locals and visitors to enjoy its vibrant atmosphere.
In May, Saint Petersburg begins to shed the grips of winter, presenting a refreshing transition into spring. With temperatures ranging from a chilly -2°C (29°F) at night to a delightful 27°C (80°F) during the day, the city awakens with vibrant life. The average temperature climbs to 10°C (50°F), making it significantly warmer compared to the preceding months. This period not only ushers in milder weather but also ignites a sense of optimism among residents and visitors alike, as they bask in the longer daylight hours and embrace the blooming greenery. May embodies a captivating blend of cool breezes and warmer afternoons, marking a beautiful shift towards the sun-drenched summer that follows.
In May, Saint Petersburg experiences a moderate decline in precipitation, averaging 48 mm (1.9 in) over approximately 9 days of rainfall. This is a slight decrease compared to the preceding months, indicating the transition into the drier summer season. Following a trend from earlier in the year, where precipitation hovered around 51 mm for both April and March, May's amounts suggest a gradual easing of the spring rains. However, the slightly lower rainfall does not diminish the city's lush landscapes, as the lingering moisture supports vibrant greenery in the emergent warmth of early summer. As the month draws to a close, residents and visitors can enjoy the milder weather amidst the backdrop of a storied city, where the subtle dance of rain, clouds, and sun continues to shape the experience.
In Saint Petersburg, May marks a notable shift in humidity, as levels drop to 74%, providing a brief respite from the high moisture typical of earlier months. This decline is part of a broader trend where humidity gradually decreases from the winter months of 97% in January to April's 87%, before picking up again in the summer. The transition into May signifies the city's vibrant spring, where slightly drier air enhances the allure of blooming landscapes. Yet, as June approaches and humidity rises again to 77%, residents and visitors alike can savor the fleeting comfort of May's milder conditions. This month serves as a reminder of the dynamic climate of Saint Petersburg, where the dance of humidity continues throughout the year.
As May arrives in Saint Petersburg, the UV Index climbs to 5, signaling a shift towards moderate sun intensity. With a recommended burn time of just 30 minutes, it's essential for residents and visitors to remain vigilant during outdoor activities. This upward trend from the lower indices observed in the earlier months indicates increasing UV exposure, a precursor to the more intense summer levels that will follow in June and July. Whether you're basking under the spring sun or exploring the city's vibrant attractions, remember to protect your skin. For a more detailed guide, check out the Saint Petersburg UV Index to stay informed and safe.
UV Risk Categories
As spring transitions into summer, May in Saint Petersburg shines brightly with an impressive 427 hours of sunshine—a significant increase from the previous months. This surge marks a delightful turning point, following the gradual climb from just 45 hours in January to an optimistic 337 hours in April. The warmth of May welcomes longer days, setting the stage for an even sunnier June, which boasts 469 hours. This upward trend highlights the city's shift from winter's grayness to the vibrant light of summer, inviting residents and visitors alike to revel in Saint Petersburg's blossoming beauty. As the month unfolds, the longer daylight hours foster a sense of rejuvenation and excitement, making this picturesque city an enchanting destination.
As spring unfolds into May, the likelihood of sunny weather in Saint Petersburg takes a distinctive turn. Although the chance of sunshine dips to 32%, this figure still reflects a transition from the increasing sunshine of April, which boasts a 41% chance. This mid-spring period often hints at the anticipation of warmer days ahead, though it remains less promising compared to the subsequent summer months, where June and July shine brightly with chances climbing above 50%. As the city gradually sheds its winter gloom, May embodies a blend of hope and uncertainty, making it a delightful, albeit unpredictable, time to experience the evolving beauty of Saint Petersburg.
In Saint Petersburg, May marks a delightful transition as daylight extends to an impressive 17 hours. After the gradual increase from 6 hours in January to 14 hours in April, the city embraces the vibrancy of spring with longer days that invite exploration and outdoor activities. This upward trend continues into June, peaking at 18 hours of daylight, before gradually tapering off throughout the summer months. The lengthening daylight in May epitomizes the region's brief but beautiful burst of brightness, preparing residents and visitors alike for the endless possibilities of summer adventures before the days slowly begin to shorten again in the fall.
In Saint Petersburg, May heralds the transition to warmer weather, with an average wind speed of 4.0 m/s (9 mph). While this is a slight dip from April’s breezier conditions, which recorded 4.2 m/s, it still offers a refreshing breeze that complements the city's blooming beauty. As spring unfolds, the winds become gentler compared to the stronger gusts in the late autumn months. Interestingly, October and November experience the strongest winds of the year, averaging over 5 m/s, creating a vivid contrast with the relative calm of May. This month stands out, not just for its moderate winds but also as a signal of the city's vibrant outdoor life, inviting residents and visitors alike to take advantage of the pleasant conditions.
Weather in Saint Petersburg varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Saint Petersburg, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather in Saint Petersburg is significantly milder, with temperatures ranging from a minimum of -2°C (29°F) to a pleasant maximum of 27°C (80°F) and an average of 10°C (50°F). The humidity is relatively high at 74%, and the city experiences about 48 mm (1.9 in) of precipitation over approximately 9 days. In stark contrast, January brings frigid conditions, with temperatures plummeting to a minimum of -22°C (-7°F) and an average of -4°C (25°F), only reaching a maximum of 7°C (44°F). Despite slightly lower precipitation at 40 mm (1.6 in) over 11 days, the humidity peaks at 97%, contributing to a biting cold atmosphere. For more details on January weather, check Saint Petersburg weather in January.
In comparing the weather of May and February, there is a stark contrast in temperatures and conditions. May offers a milder range with minimum temperatures around -2°C (29°F), averaging 10°C (50°F), and peaking at a comfortable 27°C (80°F). In contrast, February experiences much colder temperatures, with a minimum plunging to -28°C (-17°F), an average of -4°C (24°F), and a maximum of only 6°C (43°F). While both months feature precipitation, May sees about 48 mm (1.9 in) over 9 days, whereas February has slightly higher precipitation at 51 mm (2.0 in) spread over 14 days. Additionally, February's humidity is notably higher at 94%, compared to May's 74%, making the latter feel much more pleasant overall. For more details on the winter climate, visit Saint Petersburg weather in February.
May and March present a stark contrast in weather for Saint Petersburg. In March, temperatures are significantly colder, with a minimum of -23°C (-9°F) and an average of -2°C (29°F), making it a challenging month for outdoor activities. In contrast, May offers a much milder climate, boasting an average temperature of 10°C (50°F) and a maximum of 27°C (80°F), inviting residents and visitors alike to enjoy the outdoors. While March experiences slightly higher precipitation at 52 mm (2.0 in) over 12 days, May sees less rain at 48 mm (1.9 in) but with a more pleasant atmosphere due to lower humidity levels at 74% compared to March's 91%. For a detailed look at March weather specifics, check out Saint Petersburg weather in March.
In comparing the weather between April and May, it's evident that May offers a marked improvement in temperatures. While April sees minimum temperatures dip to -13°C (10°F) and an average of 4°C (39°F), May's temperatures range from a minimum of -2°C (29°F) to an average of 10°C (50°F), peaking at 27°C (80°F). Precipitation is slightly lower in May at 48 mm (1.9 in) over 9 days, compared to April's 51 mm (2.0 in) over 11 days. Additionally, May has a lower humidity level of 74%, compared to April's 87%. This shift indicates a transition to warmer, drier conditions as spring progresses, making May more favorable for outdoor activities. For a detailed look at April's weather patterns, you can check Saint Petersburg weather in April.
In May, temperatures in Saint Petersburg range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 27°C (80°F), with an average temperature of 10°C (50°F). The month receives approximately 48 mm (1.9 in) of precipitation over 9 rainy days, and humidity levels sit around 74%. In contrast, June sees a noticeable warming, with minimum temperatures rising to 4°C (39°F) and maximums reaching up to 33°C (92°F), yielding an average temperature of 16°C (62°F). While June also experiences around 48 mm (1.9 in) of precipitation over 9 days, humidity levels increase slightly to 77%. For more detailed information, check out Saint Petersburg weather in June.
In comparing the weather of May and July, May tends to have a cooler climate with temperatures ranging from a low of -2°C (29°F) to a comfortable high of 27°C (80°F) and an average of 10°C (50°F). During this month, precipitation is relatively moderate at 48 mm (1.9 in) over about 9 days, and humidity levels are around 74%. In contrast, July experiences warmer temperatures, with a minimum of 8°C (48°F), an average of 18°C (65°F), and a maximum reaching 32°C (90°F). The precipitation increases to 82 mm (3.2 in) over approximately 13 days, and humidity rises to 83%. For more detailed information, you can check Saint Petersburg weather in July.
May and August in Saint Petersburg exhibit distinct weather characteristics that reflect the transition from spring to summer. In May, temperatures range from a chilly minimum of -2°C (29°F) to an average of 10°C (50°F) and can reach a pleasant maximum of 27°C (80°F), with a relatively moderate humidity of 74%. In contrast, August brings warmer temperatures, with a minimum of 8°C (47°F), an average of 17°C (62°F), and a peak of 30°C (86°F). However, this month also sees increased precipitation, totaling 115 mm (4.5 in) over 15 days and higher humidity at 86%. To learn more about the weather specifics in August, you can visit Saint Petersburg weather in August.
In May, the weather begins warming up with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 27°C (80°F), averaging around 10°C (50°F). The month sees about 48 mm (1.9 in) of precipitation over roughly 9 days, accompanied by a humidity level of 74%. In contrast, September brings cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 24°C (76°F), averaging at 12°C (54°F). Precipitation rises to 76 mm (3.0 in) over 14 days, with humidity increasing to 90%. For more detailed information, you can check Saint Petersburg weather in September.
In May, temperatures in Saint Petersburg range from a chilly -2°C (29°F) at night to a warm 27°C (80°F) during the day, with an average of 10°C (50°F). The month experiences moderate precipitation of 48 mm (1.9 in) over about 9 days, and humidity sits at a comfortable 74%. In contrast, October brings cooler temperatures, with nightly lows around -4°C (25°F) and daily highs reaching only 17°C (63°F), averaging 7°C (44°F). The city sees significantly higher precipitation in October, totaling 86 mm (3.4 in) over 16 days, paired with increased humidity of 93%. For more detailed information, check Saint Petersburg weather in October.
May and November present contrasting weather patterns in terms of temperature and precipitation. In May, temperatures can range from a chilly -2°C (29°F) at night to a warm 27°C (80°F) during the day, with an average of 10°C (50°F). The month sees about 48 mm (1.9 in) of precipitation over approximately 9 days, accompanied by a relatively moderate humidity level of 74%. In stark contrast, November brings cooler average temperatures, with minimums dipping to -8°C (18°F) and daytime highs capping at 10°C (51°F), averaging just 2°C (36°F). This month experiences slightly higher precipitation at 55 mm (2.2 in) and has an increased number of rainy days, totaling around 13, along with higher humidity levels of 92%. For a more detailed insight, check out Saint Petersburg weather in November.
May and December present stark contrasts in weather. In May, temperatures range from a minimum of -2°C (29°F) to a maximum of 27°C (80°F), with an average of 10°C (50°F). The month sees around 48 mm (1.9 in) of precipitation over approximately 9 days, and humidity levels sit at a comfortable 74%. In contrast, December plunges into much colder conditions, with temperatures ranging from a low of -21°C (-6°F) to a maximum of just 6°C (42°F), averaging -2°C (28°F). Precipitation increases to 69 mm (2.7 in) over 17 days, and humidity rises significantly to 94%. For more detailed information on December weather patterns, visit Saint Petersburg weather in December.
As spring blossoms in Saint Petersburg, May brings a delightful transition in weather, characterized by milder temperatures and the promise of warmer days ahead. With average highs reaching a comfortable 27°C (80°F), residents and visitors alike can enjoy outdoor activities amidst the beautifully blooming landscapes. Compared to the chillier months of April and early May, this month experiences only a modest amount of precipitation, allowing for more sun-drenched days. While humidity stands at 74%, the pleasant climate encourages exploration of the city's vibrant parks and historic sites. For those looking to plan their visit and better understand the broader trends, check out the detailed insights on Saint Petersburg Climate.