Last updated: August 27, 2025
May in Iasi, Romania, presents a delightful blend of spring warmth and occasional showers. With maximum temperatures reaching a pleasant 30°C (87°F) and an average of 16°C (62°F), residents can enjoy the blossoming scenery under mostly mild conditions. However, the month also brings cooler nights, dipping as low as 3°C (38°F). Precipitation is notable, totaling 68 mm (2.7 in) over 11 days, contributing to a humidity level of 73% that enhances the vibrant lushness of the landscape. This dynamic weather pattern makes May a captivating time to experience the charm of Iasi.
As May unfolds in Iasi, Romania, the temperatures begin to bask in the warmth of spring, with minimums averaging around 3°C (38°F), while daytime highs can reach a delightful 30°C (87°F). This month marks a significant shift from the brisk chill of winter, with average temperatures rising to a comfortable 16°C (62°F), inviting residents and visitors alike to enjoy the blooming landscape. Compared to the preceding months of April and earlier, where temperatures were still grappling with the tail end of winter's grip, May exudes a vibrant energy that heralds the approach of summer. The gradual ascent in temperatures not only enhances the outdoor experience but also sets the stage for the lush, warm days that follow in the summer months ahead.
In May, Iasi, Romania, experiences a noticeable spike in precipitation, with an average of 68 mm (2.7 in) of rain spread over 11 days. This increase marks a significant rise compared to the preceding months, where precipitation levels hovered around 23 mm to 38 mm. As spring transitions into summer, the region’s rainfall becomes more pronounced, paving the way for lush greenery. The uptick in both the volume of rain and rainy days is a precursor to the even wetter conditions that follow in June, which often sees 97 mm (3.8 in) of precipitation. Overall, May serves as a pivotal month, bridging the drier early spring to the wetter summer months, highlighting a clear trend towards increased moisture in Iasi's climate.
In Iasi, Romania, the month of May marks a significant transition in humidity levels, dropping to 73% from the higher percentages of earlier months. This gradual decline from January's 92% to May's 73% signals the approach of summer, suggesting a shift towards a more comfortable climate. Interestingly, this level of humidity remains consistent with June, creating a brief period of stability before the air becomes noticeably drier in July, which hits a low of 68%. As the year progresses into the warmer months, the trend of decreasing humidity culminates in a refreshing 56% in August, demonstrating the seasonal rhythm that characterizes Iasi's weather patterns.
As May rolls into Iasi, Romania, the UV Index spikes to 8, marking a transition to a very high exposure category. This significant increase from April's 6 not only shortens the safe burn time to just 15 minutes, but also signals that outdoor enthusiasts should take precautions against intense sunlight. With the onset of warmer days, it's essential to prioritize skin safety; neglecting UV protection can lead to sunburns more rapidly than in earlier months. Observing this trend, it’s clear that as spring surrenders to summer, awareness and proactive measures about UV exposure become crucial for enjoying Iasi's vibrant outdoor scene. For more insights on UV levels, visit Iasi UV Index.
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May in Iasi, Romania, marks a delightful transition into summer, with 399 hours of sunshine illuminating the city. This month experiences a notable increase from April's 347 hours, reflecting the vibrant energy as nature comes to life. Following a gradual upward trend since the winter months, where sunshine hours peaked at only 154 hours in January, May continues the momentum into June, which boasts even more sunlight at 411 hours. This delightful increase not only signals warmer days ahead but also encourages outdoor activities and exploration in the picturesque landscapes of Iasi. As the sun shines brighter, the spirit of spring blossoms, making May a truly enchanting time to be in this charming Romanian city.
As spring transitions into summer, the likelihood of sunny weather in Iași, Romania, begins to take shape. May boasts a 40% chance of sunshine, slightly declining from the peak of April's 47% but still promising compared to the chillier winter months. This dip is part of a broader trend seen as we progress into the warmer months; while certain summer months like July and August offer brighter prospects with chances reaching up to 56%, May provides an inviting balance of milder temperatures and intermittent sunshine. Overall, while May may not lead the charge in sunny days, it certainly sets the stage for the pleasant days that follow in June and beyond.
In Iasi, Romania, daylight duration experiences a dynamic shift throughout the year, reflecting the changing seasons with a clear upward and downward trend. January begins with a modest 8 hours of daylight, gradually increasing to 10 hours in February and then reaching 11 hours by March. As spring unfolds, daylight expands significantly, resulting in a vibrant 13 hours in April and peaking at 15 hours during both May and June. This glorious stretch of extended daylight allows residents to fully embrace the beauty of nature in these months. However, as summer gives way to autumn, daylight starts to taper off again, with 14 hours in August and declining to 12 hours in September, followed by a rapid descent to 10 hours in October and further down to 9 hours in November, before returning to 8 hours in December. This rhythmic pattern highlights the rich interplay between light and nature, shaping daily life in Iasi throughout the year.
In May, Iasi experiences a delightful blend of gentle breezes, with the average wind speed reaching 3.0 m/s (7 mph), mirroring the winds of February and June. This mild gustiness contributes to the pleasant spring atmosphere as temperatures rise and outdoor activities flourish. Notably, May’s wind speed follows a slight uptick from the previous month, suggesting a transition into the lively energy of summer. As daylight stretches longer and flowers bloom, these steady winds dance through the city, enhancing the beauty of Iasi's vibrant parks and open spaces. Overall, May serves as a bridge from the calm winds of April to the slightly more spirited breezes of the upcoming summer months, invigorating both nature and the spirits of its residents.
Weather in Iasi varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Iasi, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present a stark contrast in weather patterns. In May, temperatures range from a chilly 3°C (38°F) at night to a warm 30°C (87°F) during the day, with an average of 16°C (62°F). The month sees around 68 mm (2.7 in) of precipitation over 11 days, along with a humidity level of 73%. Conversely, January experiences much colder temperatures, with nighttime lows plunging to -18°C (0°F) and daytime highs peaking at 13°C (56°F), averaging around -1°C (30°F). This winter month has significantly lower precipitation at 23 mm (0.9 in) over just 6 days, though the humidity remains high at 92%. For a closer look at January’s conditions, check out Iasi weather in January.
May and February present stark contrasts in weather conditions. In May, temperatures range from a chilly 3°C (38°F) at night to a warm 30°C (87°F) during the day, with an average of 16°C (62°F). The month experiences approximately 68 mm (2.7 in) of precipitation over 11 days, accompanied by a humidity level of 73%. In contrast, February brings much colder temperatures. The mercury can drop to a minimum of -20°C (-4°F) and reach a maximum of 18°C (65°F), with an average temperature hovering around just 1°C (34°F). Precipitation is lighter at 36 mm (1.4 in) over 7 days, but humidity is higher at 88%. For more detailed insights into February weather, you can check this link: Iasi weather in February.
When comparing the weather in May and March, notable differences emerge. May experiences significantly warmer temperatures, with a minimum of 3°C (38°F) and an average of 16°C (62°F), reaching a maximum of 30°C (87°F), while March can plunge to -15°C (5°F) at its lowest, with an average of only 5°C (41°F) and a high of 23°C (74°F). Additionally, May has higher humidity at 73% compared to March's 86%, despite March receiving less precipitation, with 38 mm (1.5 in) over 9 days versus May's 68 mm (2.7 in) over 11 days. For a more detailed look at March weather, visit Iasi weather in March.
May generally presents a warmer and wetter climate compared to April. The minimum temperatures in May rise to 3°C (38°F), while the average temperature reaches a pleasant 16°C (62°F), peaking at a high of 30°C (87°F). In contrast, April experiences lower temperatures, ranging from a minimum of -6°C (22°F) to an average of 11°C (52°F), with a maximum of 28°C (82°F). Additionally, May sees more precipitation with 68 mm (2.7 in) over 11 days, compared to April's 34 mm (1.4 in) across 7 days, albeit with a slightly lower humidity level at 73% versus April's 79%. For more detailed information, you can check Iasi weather in April.
In comparing the weather between May and June, it is evident that June experiences warmer temperatures overall. May sees a minimum temperature of 3°C (38°F) and an average of 16°C (62°F), while June starts at a higher minimum of 8°C (47°F) and averages 21°C (71°F). The maximum temperatures also rise in June, peaking at 33°C (91°F) compared to May's 30°C (87°F). Additionally, June has slightly higher precipitation, totaling 97 mm (3.8 in) over 14 days, compared to May's 68 mm (2.7 in) over 11 days. Despite the increased rainfall, the humidity remains consistent at 73% in both months. For more specific weather details, you can check Iasi weather in June.
May and July present distinct weather patterns, highlighting a transition from spring to summer. In May, temperatures range from a chilly 3°C (38°F) at night to a warm 30°C (87°F) during the day, with an average of 16°C (62°F). The month experiences about 68 mm (2.7 in) of precipitation over 11 days, resulting in a relatively high humidity of 73%. In contrast, July offers a milder start with minimum temperatures of 11°C (52°F) and peaks at a scorching 35°C (96°F), averaging 22°C (73°F). Rainfall decreases slightly to 62 mm (2.4 in) over 9 days, and humidity drops to 68%. Overall, July is characterized by warmer temperatures and slightly less precipitation compared to May. For more insights on July weather, you can check Iasi weather in July.
May typically experiences a wider range of temperatures, with minimums averaging around 3°C (38°F) and maximums reaching up to 30°C (87°F). The month sees about 68 mm (2.7 in) of precipitation over approximately 11 days, coupled with a relatively high humidity level of 73%. In contrast, August presents a warmer climate with minimum temperatures starting at 8°C (46°F) and maximums soaring to 37°C (99°F). Rainfall is lighter in August, with only 41 mm (1.6 in) occurring over 6 days, and humidity drops to a more comfortable 56%. For those interested in more details, check out Iasi weather in August.
May and September present distinct weather profiles, reflecting the transition from spring to early autumn. In May, temperatures range from a minimum of 3°C (38°F) to a maximum of 30°C (87°F), with an average of 16°C (62°F). This month typically experiences about 68 mm (2.7 in) of precipitation over 11 days and a higher humidity level of 73%. In contrast, September features a slightly warmer average temperature of 18°C (65°F), with maximum highs reaching 34°C (94°F). This month is much drier, with only 28 mm (1.1 in) of precipitation spread over 6 days and a lower humidity level of 62%. For a more detailed look at September weather, check out Iasi weather in September.
May and October present contrasting weather conditions, showcasing the transition from spring to autumn. In May, temperatures range from a chilly 3°C (38°F) at night to a warm 30°C (87°F) during the day, averaging around 16°C (62°F). The month experiences relatively high humidity at 73% and an average of 68 mm (2.7 in) of rainfall over 11 days. In stark contrast, October features cooler temperatures, with nighttime lows dropping to 0°C (32°F) and daily highs reaching up to 27°C (81°F), averaging around 12°C (54°F). The month is drier, with only 33 mm (1.3 in) of precipitation spread over just 4 days, albeit with slightly higher humidity at 80%. For more detailed insights, you can check Iasi weather in October.
May and November present contrasting weather patterns. In May, temperatures range from a chilly 3°C (38°F) to a warm 30°C (87°F), with an average of around 16°C (62°F). The month sees more precipitation, totaling 68 mm (2.7 in) over 11 days, accompanied by a moderate humidity of 73%. In contrast, November experiences cooler temperatures, with a minimum of -6°C (21°F) and an average of just 6°C (43°F). The maximum temperature reaches 24°C (76°F), but the overall conditions are drier with only 31 mm (1.2 in) of precipitation over 6 days, and a higher humidity of 89%. For more details, you can check this link: Iasi weather in November.
May and December present contrasting weather conditions. In May, temperatures range from a minimum of 3°C (38°F) to a maximum of 30°C (87°F), with an average of 16°C (62°F), making it a pleasantly warm month. The humidity is moderate at 73%, and the month sees around 68 mm (2.7 inches) of precipitation over 11 days. In sharp contrast, December experiences much colder temperatures, ranging from a minimum of -13°C (8°F) to a maximum of 16°C (61°F), with an average temperature of only 2°C (35°F). This month also has higher humidity at 90% and slightly lower precipitation, totaling 53 mm (2.1 inches) across the same number of rainy days. For more details, visit Iasi weather in December.
In May, Iasi experiences a delightful transition into warmer weather, with temperatures consistently climbing and a refreshing average of 16°C. Compared to the chillier months preceding it, this month shines with a newfound vibrancy, making outdoor activities increasingly appealing. Nonetheless, May also brings some rain, with 11 days of precipitation contributing to a humidity level of 73%, which makes the air feel quite fresh. Although the occasional shower may dampen plans, the mild warmth and blooming landscapes make May a charming month to embrace the beauty of Iasi. For a deeper dive into Iasi’s weather patterns, explore Iasi Climate.