Last updated: March 17, 2025
In May, Zagreb, Croatia, offers a delightful transition from spring to summer, with maximum temperatures reaching 31°C (89°F) and an average of 16°C (62°F). While days may start warm, early mornings can be brisk, dipping to 3°C (37°F). Visitors can expect 120 mm (4.7 in) of rain spread over 17 days, contributing to the city's lush greenery but also prompting a need for umbrellas. With a humidity level of 70%, the atmosphere can feel quite warm and sticky, perfect for enjoying the vibrant outdoor cafés and parks that blossom during this lively month.
In May, Zagreb welcomes warmer weather as it transitions fully into spring. With temperatures ranging from a brisk 3°C (37°F) at night to a balmy 31°C (89°F) during the day, the city basks in an average temperature of 16°C (62°F). This month demonstrates a significant shift from the cooler months of early spring, marked by a rise in both minimum and maximum temperatures. The pleasant days and mild evenings invite locals and visitors alike to explore outdoor cafes and parks, making May a perfect time to enjoy Zagreb's vibrant atmosphere.
May in Zagreb ushers in a significant increase in precipitation, with 120 mm (4.7 in) of rain falling over 17 days. This surge marks the wettest month of the year, reflecting a vibrant transition into spring and early summer. The nearly doubled rainfall compared to April's 68 mm (2.7 in) suggests a shift in weather patterns, likely driven by warmer temperatures and increased moisture. Such conditions not only nourish the lush greenery that envelops the city but also contribute to the lively atmosphere as locals and visitors enjoy the refreshing rainfall. This trend of heightened precipitation continues into June, yet May remains the month where Zagreb truly awakens to its blooming splendor, underscoring its blend of urban vibrancy and natural beauty.
In Zagreb, Croatia, May marks the transition to a more comfortable climate, with humidity levels dropping to 70%. This reduction from the wetter months of early spring suggests a shift towards drier conditions as summer approaches. The trend observed through the year indicates that humidity is at its peak in the winter months, averaging a substantial 89% in January and gradually decreasing as the seasons change. By May, residents and visitors alike can enjoy increasingly pleasant weather, paving the way for outdoor activities and exploration. As the city continues to warm in June and July, humidity levels further decline to 69% and 64%, enhancing the appeal of Zagreb’s beautiful parks and urban spaces during the summer months.
As spring unfolds into summer in Zagreb, the UV Index in May reaches a striking 8, categorizing it as very high and significantly increasing the risk of skin damage. This marks a notable rise from April’s UV Index of 6, where sun protection is crucial. With a burn time slashed to just 15 minutes, May serves as a reminder for residents and visitors alike to stay vigilant and protect their skin, especially as the sunny days urge everyone outdoors. The upward trend in UV exposure continues as June and July follow suit, making it essential to embrace sun safety practices throughout the season. For more detailed insights, visit Zagreb UV Index.
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In May, Zagreb basks in an impressive 371 hours of sunshine, establishing itself as a delightful springtime destination. This rise in sunlight marks a significant leap from the earlier months, showcasing a shift from just 162 hours in January to a radiant April with 335 hours. May's sunny days herald the approaching warmth of summer, where sunlight peaks in June at 406 hours. This upward trend emphasizes not only longer days but also the city's vibrant outdoor scene, inviting residents and visitors alike to embrace the lush landscapes and charming streets of Croatia's capital. As the sunlight brightens, so too does the city's pulse, promising an energizing atmosphere perfect for exploration and leisure.
In May, Zagreb welcomes the early hints of summer with a 39% chance of sunny weather, reflecting a slight dip from the sunnier days of April when the likelihood peaked at 41%. This month showcases a transitional period, where the sunshine is becoming more sporadic as spring bows to the pre-summer warmth. Compared to earlier months, May still holds its own, though it sees a notable drop from the brighter days of March, which recorded a robust 58% chance of sun. As the city approaches June, which enjoys a 57% probability of sunny skies, May serves as a gentle reminder that while sunshine is on the rise, it’s still intertwined with spring's unpredictable charm. The fluctuating patterns of light are a prelude to the glorious summer, ultimately enticing visitors and locals alike to embrace the beauty amidst occasional clouds.
As spring transitions into summer, May brings a delightful increase in daylight to Zagreb, reaching an impressive 14 hours. This is a significant leap from the 13 hours of daylight in April, reflecting the city's vibrant awakening after the winter months. Following May, June and July maintain this high threshold, offering the longest days of the year at 15 hours. However, as summer gives way to autumn, the daylight gradually begins to dwindle, dropping to 12 hours in September before settling back down to 10 hours in October. This cyclical pattern emphasizes the charm of Zagreb's lengthy May days, encouraging residents and visitors alike to savor the extended hours of sunshine before the shorter days of the colder months return.
In May, Zagreb experiences a gentle breeze with an average wind speed of 2.3 m/s (5 mph), reflecting a subtle uptick from the 2.4 m/s of April. This consistency signifies the city’s transition into warmer months, as the wind remains fairly moderate compared to the preceding winter months. Following the trend of rising temperatures and blossoming nature, May's mild winds create a pleasant atmosphere that invites residents and visitors alike to explore the beautiful outdoor spaces. As summer approaches, the winds begin to ease into their lowest speeds, peaking just before the warmest months, but May stands out as a delightful period where both calm and refreshing breezes harmonize with the vibrant surroundings.
The weather in Zagreb changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Zagreb and find detailed weather information for every month.
May and January present strikingly different weather patterns. In May, temperatures range from a mild 3°C (37°F) to a warm 31°C (89°F), with an average of 16°C (62°F). Rainfall is relatively high at 120 mm (4.7 in) over about 17 days, accompanied by a humidity level of 70%. In contrast, January experiences much colder conditions, with temperatures dipping from a minimum of -12°C (11°F) to a maximum of 16°C (62°F), resulting in an average of just 1°C (34°F). Precipitation is lower at 39 mm (1.5 in) over about 8 days, while humidity is notably higher at 89%. For more details on January weather, check out Zagreb weather in January.
May and February exhibit stark differences in weather patterns. In May, temperatures range from a chilly 3°C (37°F) at night to a warm 31°C (89°F) during the day, with an average of 16°C (62°F). The month experiences a significant amount of rainfall, totaling 120 mm (4.7 in) over 17 days, accompanied by a humidity level of 70%. In contrast, February is much colder, with nighttime lows dipping to -10°C (14°F) and daytime highs reaching 21°C (69°F), averaging around 4°C (40°F). Precipitation during February is lower, at 66 mm (2.6 in) over 9 days, but humidity is relatively high at 83%. For more details, visit Zagreb weather in February.
In comparing the weather between March and May, significant differences emerge in both temperature and precipitation. March tends to be much colder, with minimum temperatures dropping to -15°C (6°F) and average temperatures hovering around 7°C (46°F). In contrast, May showcases a milder climate with a minimum temperature of 3°C (37°F) and an average of 16°C (62°F), reaching highs of up to 31°C (89°F). When it comes to precipitation, March experiences less rain, with 52 mm (2.1 in) falling over 8 days, while May is wetter, receiving 120 mm (4.7 in) over 17 days. Interestingly, humidity levels are slightly higher in March at 75% compared to May's 70%. For more detailed information on March weather, you can visit Zagreb weather in March.
May generally experiences milder temperatures compared to April, with a minimum of 3°C (37°F) and an average of 16°C (62°F), contrasted with April's lower minimum of -6°C (21°F) and average of 12°C (54°F). However, May can reach a higher maximum of 31°C (89°F) compared to April's 29°C (85°F). Precipitation is more frequent in May, with 120 mm (4.7 in) spread over 17 days, while April sees less rain, totaling 68 mm (2.7 in) over just 9 days. Both months maintain similar humidity levels, with May at 70% and April slightly higher at 72%. For more detailed information, check out Zagreb weather in April.
In comparing the weather between May and June, it's evident that June experiences warmer temperatures overall. May sees a minimum of 3°C (37°F) and can rise to a maximum of 31°C (89°F), with an average of 16°C (62°F). In contrast, June starts off warmer, with minimum temperatures of 8°C (47°F) and can reach up to 37°C (99°F), averaging 22°C (72°F). Additionally, June has slightly less precipitation, totaling 96 mm (3.8 in) over 12 days, compared to May's 120 mm (4.7 in) over 17 days. Humidity levels remain relatively similar, with May at 70% and June at 69%. For a more detailed overview, you can refer to Zagreb weather in June.
The weather in May is characterized by cooler temperatures, with a minimum of 3°C and an average of 16°C, contrasting sharply with July's minimum of 10°C and an average of 23°C. While May experiences a higher amount of precipitation at 120 mm over 17 days, July is drier, with only 88 mm over 11 days. Additionally, humidity levels are higher in May at 70%, compared to 64% in July, making July feel a bit more comfortable and warm. For a detailed overview of the weather in July, you can check Zagreb weather in July.
May and August showcase notable differences in weather patterns. In May, temperatures range from a chilly minimum of 3°C (37°F) to a warm average of 16°C (62°F), peaking at 31°C (89°F). The month is characterized by relatively high precipitation, recording 120 mm (4.7 in) over 17 days, accompanied by a humidity level of 70%. In contrast, August experiences milder temperatures, with a minimum of 9°C (49°F) and an average of 23°C (74°F), soaring to a maximum of 39°C (103°F). This month sees significantly less rainfall at 74 mm (2.9 in) over only 10 days, and a lower humidity level of 51%. For more detailed insights, visit Zagreb weather in August.
In May, the weather is characterized by a broader temperature range, with minimums as low as 3°C (37°F) and maximums reaching up to 31°C (89°F). This month also sees higher precipitation levels, averaging 120 mm (4.7 in) over 17 days, along with a humidity level of 70%. In contrast, September offers a slightly warmer average temperature of 18°C (64°F) with maximums soaring up to 34°C (93°F). Precipitation decreases to 98 mm (3.9 in) spread across just 10 days, and humidity is more comfortable at 62%. For more details on September's weather, visit Zagreb weather in September.
In May, temperatures begin to rise significantly, ranging from a minimum of 3°C (37°F) to a maximum of 31°C (89°F), with an average temperature of 16°C (62°F). The month experiences considerable rainfall, with about 120 mm (4.7 in) spread over 17 days, and humidity levels around 70%. In contrast, October sees cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 27°C (80°F), averaging at 12°C (55°F). Precipitation decreases to 84 mm (3.3 in) over just 9 days, coupled with slightly higher humidity at 81%. For detailed information on the weather in October, visit Zagreb weather in October.
May and November present a stark contrast in weather patterns. In May, temperatures range from a mild 3°C (37°F) at night to a warm 31°C (89°F) during the day, with an average of 16°C (62°F). The month sees considerable rainfall, accumulating 120 mm (4.7 in) over 17 days, accompanied by a humidity level of 70%. In contrast, November brings cooler conditions, with temperatures dropping to a minimum of -5°C (24°F) and peaking at 22°C (71°F), averaging around 7°C (46°F). The month experiences less precipitation at 89 mm (3.5 in) over just 10 days, but the humidity increases to 87%, creating a damp atmosphere. For more detailed insights on November weather, you can check Zagreb weather in November.
May and December present stark contrasts in weather patterns. May boasts warmer temperatures, with averages around 16°C (62°F) and highs reaching up to 31°C (89°F), while December's average temperature drops to a chilly 3°C (38°F) and can plunge as low as -6°C (21°F). Additionally, May experiences significantly more precipitation, totaling 120 mm (4.7 in) over 17 days, compared to December's 86 mm (3.4 in) over just 10 days. Humidity levels are also higher in December at 88%, compared to May's 70%, creating a decidedly damp and cold atmosphere. For more detailed information on December weather in Zagreb, you can visit Zagreb weather in December.
As spring unfolds in Zagreb, May brings a delightful transition from the cooler temperatures of earlier months, with warmer days that can peak at a sunny 31°C. However, visitors should prepare for a mix of weather, as the city experiences about 17 days of precipitation, contributing to an overall humidity of 70%. This unique blend of warmth and occasional rain sets May apart from the drier and more stable conditions of summer, making it an ideal time for those who enjoy the vibrancy of blooming nature and the charm of lingering spring showers. To learn more about what to expect throughout the year, check out Zagreb Climate.