Last updated: August 27, 2025
May in Cluj-Napoca, Romania, offers a delightful mix of spring warmth and occasional rainfall. With maximum temperatures reaching up to 27°C (81°F) and an average of 14°C (57°F), the month invites residents and visitors alike to enjoy the blossoming landscapes. However, be prepared for cooler nights, as minimum temperatures can drop to -1°C (30°F). Rainfall is notable, with 115 mm (4.5 in) accumulated over 19 days, contributing to an overall humidity level of 71%. This weather pattern sets the stage for a vibrant and refreshing month characterized by the beauty of nature in full blossom.
As spring fully unfolds in Cluj-Napoca, Romania, May brings a delightful transition in temperatures, setting the stage for warmer days ahead. The month starts with a chilly minimum of -1°C (30°F), but quickly warms up to an inviting average of 14°C (57°F). With daytime highs reaching 27°C (81°F), May is a time when the city begins to buzz with outdoor activities and vibrant life. Compared to the preceding months, there's a noticeable shift, as temperatures rise sharply from the lingering cold of April, making May one of the most enjoyable months to explore this charming city. Whether you're sipping coffee in a sun-drenched plaza or wandering the picturesque streets, the pleasant warmth of May invites residents and visitors alike to soak in the beauty of Cluj-Napoca.
May in Cluj-Napoca marks a significant shift in rainfall patterns, as it boasts the highest precipitation of the year at 115 mm (4.5 in) across 19 days. This increase follows a relatively steady stream of rainfall during the preceding months, where averages hovered around 34 mm to 56 mm. The surge in May signifies the transition into the lushness of late spring, contributing to vibrant greenery throughout the city. As the rain continues into June, maintaining a similar volume, it becomes clear that this month not only sets the stage for the summer months but also underscores the region's role in fostering a dynamic, temperate climate characterized by frequent and generous showers.
May marks a notable shift in humidity for Cluj-Napoca, Romania, as it dips to 71%, reflecting a trend of decreasing moisture as spring transitions to summer. This is a significant drop from the 79% observed in April, showcasing an overall decline from the more humid winter months, where levels hovered around 93% in January and 88% in February. The consistency in humidity levels seems to stabilize in June, maintaining the 71% mark, suggesting a balanced climate as warmer days approach. This gradual decline paves the way for the drier summer months ahead, particularly August, when humidity can fall to a refreshing 55%.
As May rolls into Cluj-Napoca, Romania, residents can expect a significant spike in UV exposure, with the UV Index soaring to 8, categorized as very high. This marks a notable shift from the preceding months, where the burn time gradually decreased as spring unfolded. In May, the recommended burn time dips to just 15 minutes, highlighting the need for sun protection during outdoor activities. This trend of increasing UV intensity typically continues into June and July, with the UV Index peaking at 9. As summer approaches, it's essential for locals and visitors alike to stay informed about UV levels and safeguard their skin. For a detailed view of the UV Index throughout the year, check out Cluj-Napoca UV Index.
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As spring gracefully transitions into summer, May in Cluj-Napoca shines particularly bright with 392 hours of sunlight, marking a peak in the city's luminous journey. This month boasts a significant increase from the 347 hours in April, highlighting a clear upward trend as daylight extends and nature thrives. Following May, the sun continues to generously bathe the city, with June and July recording even higher levels, reaching 411 and 426 hours, respectively. This pattern not only enhances the vibrant atmosphere of Cluj-Napoca but also invites locals and visitors alike to revel in the outdoors, enjoying the full splendor of the season. As the year progresses, the gradual decline in sunshine hours post-July serves as a gentle reminder of the cyclical beauty of Cluj-Napoca's climate.
As May arrives in Cluj-Napoca, the likelihood of sunny weather hovers around 38%, marking a slight increase from the chillier months of April, which sits at 37%. While this percentage indicates a moderate chance of sunshine, it remains lower than the sunnier months of June and July, which boast probabilities of 50% and 52%, respectively. This gradual trend towards brighter days showcases the region's transition into summer, bridging the gap between the cool, overcast winter months and the more radiant days ahead. Thus, residents and visitors alike can anticipate a gradual warming and an uptick in delightful sunny spells as the month unfolds, even if stormy surprises are still possible.
In Cluj-Napoca, Romania, daylight duration experiences a remarkable transformation throughout the year. As winter wanes, January and February offer only 8 to 10 hours of light, yet by March, the sun begins to linger longer, granting 11 hours of daylight. The most significant change occurs in spring, with April bringing an inviting 13 hours that intensifies to 15 hours in May. This peak in daylight persists through the summer months of June and July, where residents enjoy the luxury of long evenings basked in sunlight. As August arrives, the daylight begins to slowly recede, dropping to 14 hours, and continues its downward trend into fall, with 12 hours in September and trailing to 10 hours by October. This cyclical dance of light serves as a captivating reminder of the changing seasons in this vibrant city, fostering a deep appreciation for longer, sunnier days.
In May, Cluj-Napoca enjoys a gentle breeze that complements the vibrant bloom of spring. With an average wind speed of 2.4 m/s (5 mph), conditions remain consistently mild, marking a slight uptick from the previous months. This late spring wind is moderate compared to the full spectrum of the year, maintaining a refreshing atmosphere ideal for outdoor activities and leisurely strolls. As the months progress into summer, a gradual decline in wind speed begins, suggesting a transition to warmer, calmer days. Overall, May serves as a delightful midpoint in Cluj-Napoca’s climatic rhythm, where soothing winds enhance the city’s lush landscapes.
Weather in Cluj-Napoca varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Cluj-Napoca, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January offer starkly contrasting weather in Cluj-Napoca. In May, temperatures range from a minimum of -1°C (30°F) to a pleasant maximum of 27°C (81°F), with an average of 14°C (57°F). The month experiences significant precipitation of 115 mm (4.5 in) over about 19 days, coupled with a humidity level of 71%. In contrast, January is much colder, with temperatures dipping to a minimum of -21°C (-6°F) and only reaching a maximum of 12°C (53°F), averaging -3°C (28°F). Precipitation is much lower at 34 mm (1.3 in) across just 9 days, although the humidity remains high at 93%. For more details, you can check Cluj-Napoca weather in January.
May and February showcase starkly contrasting weather patterns. In May, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 27°C (81°F), with an average of 14°C (57°F). In contrast, February experiences much colder temperatures, with a minimum of -14°C (8°F) and a maximum of only 16°C (61°F), averaging just 1°C (34°F). Precipitation levels also differ significantly; May sees 115 mm (4.5 in) spread over 19 days, while February has a lighter 49 mm (1.9 in) over 11 days. The humidity is notably higher in February at 88%, compared to May's 71%. For a closer look at February's weather, visit Cluj-Napoca weather in February.
When comparing the weather between May and March, there are significant differences. May typically experiences milder temperatures, with lows around -1°C (30°F) and average highs reaching up to 27°C (81°F). In contrast, March is much colder, with minimum temperatures dropping to -19°C (-1°F) and average highs of 22°C (72°F). Additionally, May has higher precipitation levels, averaging 115 mm (4.5 in) over 19 days, compared to March's 56 mm (2.2 in) across 11 days, although March has a higher humidity level at 86% versus May's 71%. For more details on March weather, you can visit Cluj-Napoca weather in March.
In comparing the weather patterns of April and May, it is evident that May experiences a significant rise in average temperatures, with minimums around -1°C (30°F) and maximums reaching up to 27°C (81°F), while April's temperatures range from a minimum of -7°C (20°F) to a maximum of 26°C (80°F). May also sees increased precipitation at 115 mm (4.5 in) over 19 days, compared to April's more modest 52 mm (2.0 in) over just 12 days. This results in May being warmer but slightly wetter, despite April having a higher overall humidity level at 79% compared to May's 71%. For more detailed information about April weather, you can visit Cluj-Napoca weather in April.
May and June exhibit a noticeable shift in weather patterns. In May, temperatures range from a chilly -1°C (30°F) at night to a comfortable maximum of 27°C (81°F) during the day, with an average of 14°C (57°F). Precipitation is relatively high, totaling 115 mm (4.5 in) over 19 days, leading to a humid environment with a consistent 71% humidity. In contrast, June brings warmer temperatures with a minimum of 6°C (42°F) and a maximum of 32°C (90°F), averaging around 18°C (65°F). Rainfall slightly decreases to 110 mm (4.3 in) over 18 days, while the humidity remains steady at 71%. This transition marks June as a warmer and drier month compared to May. For more details, check Cluj-Napoca weather in June.
In comparing the weather patterns of May and July, it's evident that July typically experiences milder nighttime temperatures, with a minimum of 7°C (45°F) compared to May's chilly minimum of -1°C (30°F). The average daily temperature in July rises to 19°C (67°F), while May's average sits lower at 14°C (57°F). July also boasts warmer maximum temperatures, peaking at 32°C (89°F) compared to May's high of 27°C (81°F). Furthermore, precipitation decreases slightly in July, with 100 mm (3.9 in) falling over 16 days, compared to May's 115 mm (4.5 in) over 19 days, and July's humidity is somewhat lower at 64% versus May's 71%. For more details, check out Cluj-Napoca weather in July.
Comparing the weather in May and August reveals significant differences in temperature and precipitation patterns. May experiences a wider temperature range, with minimums dropping to -1°C (30°F) and maximums reaching 27°C (81°F), while August maintains warmer temperatures, with lows of 6°C (43°F) and highs peaking at 35°C (95°F). Additionally, May is characterized by higher precipitation, totaling 115 mm (4.5 in) over 19 days, contrasting with August's drier conditions, where only 74 mm (2.9 in) falls over 11 days. The humidity in May averages 71%, making it feel quite humid, while August's humidity is lower at 55%, contributing to a more comfortable atmosphere. For more detailed information about August weather, visit Cluj-Napoca weather in August.
May and September offer contrasting weather experiences. In May, temperatures range from a chilly -1°C (30°F) at night to a warm 27°C (81°F) during the day, with an average of 14°C (57°F). The month is characterized by significant rainfall, totaling 115 mm (4.5 in) over 19 days and a higher humidity level of 71%. In contrast, September brings slightly warmer average temperatures, peaking at 29°C (85°F) and dropping to a minimum of -1°C (31°F), while enjoying a more comfortable average of 15°C (59°F). Rainfall is notably lower in September at 59 mm (2.3 in) across just 8 days, and humidity decreases to 64%. For more detailed insights, check out Cluj-Napoca weather in September.
In comparing the weather between May and October, May generally offers warmer temperatures, with a minimum of -1°C (30°F), an average of 14°C (57°F), and a maximum of 27°C (81°F). In contrast, October tends to be cooler, featuring a minimum of -4°C (25°F), an average of 10°C (50°F), and a maximum of 24°C (76°F). May is also wetter, with 115 mm (4.5 in) of precipitation over 19 days, while October sees significantly less rain at 53 mm (2.1 in) across just 7 days. Additionally, October has a higher humidity level of 83%, compared to May's 71%. For more details, check out Cluj-Napoca weather in October.
May and November showcase contrasting weather patterns. In May, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 27°C (81°F), with an average of 14°C (57°F). The month experiences significant rainfall, with 115 mm (4.5 in) falling over 19 days, and the humidity sits at 71%. In contrast, November brings cooler temperatures, with a minimum of -8°C (19°F) and an average of 5°C (41°F), peaking at 22°C (73°F). Precipitation is considerably lower at 41 mm (1.6 in), occurring over just 9 days, but humidity rises to 91%. For more details, you can check Cluj-Napoca weather in November.
May and December present markedly different weather patterns. In May, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 27°C (81°F), with an average temperature of 14°C (57°F). The month is relatively wet, featuring about 115 mm (4.5 in) of precipitation over 19 days, and humidity levels around 71%. In contrast, December experiences much colder conditions, with temperatures dipping as low as -13°C (9°F) and averaging around 0°C (33°F), reaching a maximum of 12°C (54°F). Precipitation is lower in December at 65 mm (2.6 in) over 13 days, but humidity is significantly higher at 92%. For more detailed information on December weather, check out Cluj-Napoca weather in December.
As May unfolds in Cluj-Napoca, it marks a vibrant transition from the chill of winter to the warmth of summer. With a welcoming average temperature of 14°C and maximums reaching up to 27°C, the city begins to bask in pleasant sunlight, making it a great time for outdoor activities. However, May is also characterized by its significant precipitation, with rain gracing the city on nearly two-thirds of the days, ensuring that the landscape remains lush and green. As humidity levels rise, the air carries a freshness that invigorates both residents and visitors alike. For those looking to explore Cluj-Napoca's weather patterns throughout the year, visit Cluj-Napoca Climate for a deeper understanding.