Last updated: August 21, 2025
In Turku, Finland, the weather in May showcases the transition into warmer months, with maximum temperatures reaching an invigorating 28°C (83°F). The average temperature hovers around a comfortable 10°C (50°F), while chilly nights can dip to as low as -5°C (24°F). May also brings a moderate level of precipitation, totaling 48 mm (1.9 in) over approximately 10 days, complemented by a humidity level of 77% that adds a refreshing touch to the air. This blend of warmth and moisture creates perfect conditions for the lush beauty of spring to flourish in this picturesque Finnish city.
In Turku, Finland, May marks a distinct transition into milder temperatures, shedding the harshness of winter. With minimum temperatures rising to -5°C (24°F) and an average hovering around 10°C (50°F), the city begins to awaken from its frosty slumber. The peaks can reach a delightful 28°C (83°F), inviting residents and visitors alike to embrace the blossoming outdoors. This significant shift from the preceding months, where averages were often below freezing, showcases May as a vibrant prelude to summer, making it an ideal time for exploration and outdoor activities as nature bursts into life.
In May, Turku experiences a total precipitation of 48 mm (1.9 in), mirroring the dampness of January while also contributing to an overall spring revival. With 10 days of rainfall, May acts as a transitional canvas, bridging the crispness of early spring and the lushness of summer. This month features a notable consistency in precipitation patterns, as it holds steady with past averages, contrasting sharply with the wettest months ahead, such as July and August. Overall, May signifies a time when rain nurtures the awakening flora, setting the stage for the vibrant landscapes that lie ahead in the Finnish summer.
May in Turku, Finland marks a notable shift in humidity, with levels dipping to 77%. This decrease follows a gradual decline from the winter months, where humidity hovered around 92% in January and 90% in February. As spring unfolds, humidity begins to ease, leading into the summer months with consistently stable levels around 78%. The transition into May indicates a welcome relief from the higher moisture content of the previous months, making it a refreshing time for residents and visitors alike. While humidity does rise again in the fall, the warmth of May brings a pleasant break, showcasing the cyclical nature of Turku's climate.
As spring blossoms in Turku, May brings a notable shift in the UV Index, reaching a value of 5, which falls into the moderate exposure category. This trend marks a progression from the lower UV levels experienced during the winter months, where January and February recorded indices of 1 and 2, respectively. The increasing sunlight in May allows for a burn time of approximately 30 minutes, urging residents and visitors to enjoy the outdoor beauty of the season while taking necessary sun protection precautions. As summer approaches, the UV Index is set to rise even further in June and July, emphasizing the importance of staying informed about UV levels. For more details on how to stay safe in the sun, check out the full guide on the Turku UV Index.
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As spring transitions into summer, May brings a vibrant surge of sunshine to Turku, Finland, with 458 hours of daylight illuminating the city. This remarkable increase from the 372 hours in April underscores a notable trend—each month, as winter recedes, the hours of sunlight steadily climb, creating longer, brighter days. Following May, June reaches its peak with 495 hours, but the journey of increased sunlight is evident, with an encouraging growth from just 62 hours in January to this sunlit peak just a few months later. This upward trajectory signifies the awakening of nature and the joy of outdoor activities, making May an enchanting time in Turku as the city basks in longer days and the promise of summer.
In Turku, Finland, the likelihood of sunny weather experiences a noticeable shift as the seasons change. After a gradual rise in sun probability from a mere 10% in January to 52% by April, May sees a slight dip to 32%. This fluctuation suggests that while the month is often a bridge to more consistently sunny days ahead, with June and July boasting chances of sun at 55% and 56% respectively, May retains its charm amid the unpredictability. Overall, the trend highlights the arrival of spring, where longer days and warmer temperatures can still yield a mix of sunshine and cloud cover.
In Turku, Finland, daylight duration undergoes a remarkable transformation as the year progresses. Starting in January with a mere 6 hours of daylight, the length gradually increases, reaching 17 hours by May. This month truly marks the transition into summer as the sun shines brighter and longer, inviting residents and visitors alike to indulge in outdoor activities and enjoy the vibrant ambiance. As June and July continue this trend with a peak of 18 hours of daylight, the long summer days foster a unique sense of joy and vitality. However, by August, the daylight begins to wane, transitioning back to a more subdued 15 hours, and further down to 12 hours in September. This gradual decrease signals the approach of autumn, as the embrace of longer nights returns, leading to a cozy atmosphere and a shift in seasonal activities. Through this cycle, Turku experiences a beautiful dance of daylight, deeply influencing the rhythms of life in this charming Finnish city.
In May, Turku experiences a gentle breeze, with an average wind speed of 3.2 m/s (7 mph), maintaining a consistent and mild atmosphere as spring unfolds. This aligns closely with February’s and July’s breezy conditions, showcasing a subtle yet persistent wind pattern that prevails into the warmer months. As the weather shifts from the chill of winter to the more refreshing spring air, May’s winds are slightly calmer than the 4.0 m/s (9 mph) gusts often felt in March, hinting at a tranquility that complements the budding flora. Looking ahead, the wind speeds gradually decline until they dip to their lowest in June, suggesting a serene transition into the summer. Overall, May stands out as a harmonious blend of gentle winds, making it an ideal time to enjoy the blooming landscapes of Turku.
Weather in Turku varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Turku, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present significantly contrasting weather conditions. In May, temperatures range from a chilly minimum of -5°C (24°F) to a pleasant maximum of 28°C (83°F), with an average of 10°C (50°F). The month sees about 48 mm (1.9 in) of precipitation over roughly 10 days, accompanied by a moderate humidity of 77%. In stark contrast, January experiences much harsher conditions, with temperatures plummeting to a minimum of -25°C (-13°F) and an average of -2°C (28°F), only reaching a maximum of 8°C (47°F). Similar to May, January also records 48 mm (1.9 in) of precipitation but does so over just 9 days, with a higher humidity level of 92%. For more specific details on the conditions in January, you can visit Turku weather in January.
May and February present stark contrasts in weather. In May, temperatures range from a chilly minimum of -5°C (24°F) to a warm maximum of 28°C (83°F), with an average of 10°C (50°F). The month sees approximately 48 mm (1.9 in) of precipitation over 10 days, and humidity sits at 77%. In comparison, February is much colder, with temperatures ranging from a minimum of -24°C (-11°F) to a maximum of just 7°C (45°F) and an average of -3°C (26°F). Precipitation in February is slightly less at 42 mm (1.7 in) over 8 days, but humidity is higher at 90%, reflecting the chilly, damp conditions. For more details on February weather, visit Turku weather in February.
May and March present a stark contrast in weather conditions. May experiences milder temperatures, ranging from a low of -5°C (24°F) to a high of 28°C (83°F), with an average temperature of 10°C (50°F). In contrast, March is much colder, with temperatures plummeting from a minimum of -25°C (-12°F) to a maximum of 13°C (55°F), averaging around 0°C (31°F). While both months see about 10 days of precipitation, March has slightly less rainfall at 45 mm (1.8 in) compared to May's 48 mm (1.9 in). Additionally, humidity levels are higher in March at 89%, compared to 77% in May, contributing to the overall colder and more damp feel during that month. For more detailed insights on March weather, visit Turku weather in March.
In comparing the weather of May and April, May tends to be warmer and more variable, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 28°C (83°F), while April's temperatures range from -12°C (10°F) to 21°C (71°F). The average temperature in May is significantly higher at 10°C (50°F) compared to April's average of 4°C (40°F). Precipitation also increases slightly in May, with 48 mm (1.9 in) over 10 days, compared to April's 34 mm (1.3 in) over 9 days. Interestingly, humidity remains relatively high in both months, at 77% in May and 85% in April, making both months feel moist. For more specific insights into April's weather patterns, visit Turku weather in April.
In May, the weather typically sees a broader temperature range, with minimums dropping as low as -5°C (24°F) and maximums reaching up to 28°C (83°F). The average temperature hovers around 10°C (50°F), accompanied by about 48 mm (1.9 in) of precipitation over 10 days, with humidity at 77%.
In contrast, June offers milder conditions, where minimum temperatures rise to 2°C (36°F) and maximums reach up to 30°C (86°F). The average temperature increases to 16°C (61°F) with slightly lower precipitation at 45 mm (1.8 in) occurring over just 7 days. Humidity remains relatively stable at 78%.
For a more detailed look at the weather in June, check out Turku weather in June.
May and July present quite a contrast in weather. In May, temperatures can dip as low as -5°C (24°F), with an average of 10°C (50°F) and highs reaching 28°C (83°F). The month sees about 48 mm (1.9 in) of precipitation over approximately 10 days and maintains a humidity level of 77%. In stark comparison, July typically has milder temperatures, with a minimum of 5°C (40°F), an average of 18°C (64°F), and peak temperatures around 33°C (91°F). Rainfall increases in July to 85 mm (3.4 in) over 11 days, alongside a slightly higher humidity of 78%. For more detailed insights into the weather conditions, check this link: Turku weather in July.
May and August present contrasting yet enjoyable weather patterns. In May, temperatures range from a chilly -5°C (24°F) at the lowest to a pleasant 28°C (83°F) at the highest, with an average of 10°C (50°F). The month sees about 48 mm (1.9 in) of precipitation spread over 10 days, and humidity hovers around 77%. In stark contrast, August brings slightly milder conditions, characterized by a minimum temperature of 4°C (40°F) and a maximum of 29°C (84°F), averaging 16°C (62°F). However, it proves to be wetter, with 95 mm (3.7 in) of rain over 13 days and a humidity level of 79%. This transition from May to August reflects a shift toward warmer but more humid and rain-prone weather. For more detailed insights on August weather, you can check Turku weather in August.
May and September present distinct weather patterns that highlight the transition of seasons. In May, temperatures range from a chilly -5°C (24°F) to a pleasant 28°C (83°F), averaging around 10°C (50°F), while the humidity sits at a moderate 77%. The month experiences about 48 mm (1.9 in) of precipitation over roughly 10 days.
In contrast, September offers slightly warmer average temperatures, from a low of -3°C (28°F) to a high of 23°C (74°F), with an average of 12°C (54°F). However, it is also wetter, with 69 mm (2.7 in) of rain spread over about 12 days and a higher humidity level of 86%. For a detailed look at weather patterns during this month, you may check Turku weather in September.
May and October present distinct contrasts in weather patterns. In May, the temperatures range from a chilly -5°C (24°F) at night to a warm 28°C (83°F) during the day, with an average of 10°C (50°F). The month sees moderate precipitation, totaling 48 mm (1.9 in) over approximately 10 days and a humidity level of 77%. In contrast, October experiences cooler temperatures, with a minimum of -6°C (21°F), an average of 7°C (45°F), and a maximum of only 17°C (63°F). Precipitation increases to 78 mm (3.1 in) over about 15 days, accompanied by higher humidity at 90%. For more details, visit Turku weather in October.
In May, temperatures range from a brisk -5°C (24°F) at night to a warm 28°C (83°F) during the day, with an average of 10°C (50°F). The month experiences about 48 mm (1.9 in) of precipitation over 10 days, coupled with a humidity level of 77%. In contrast, November brings cooler weather, with temperatures dipping from -9°C (15°F) to a maximum of 13°C (56°F) and an average of only 3°C (38°F). Precipitation in November slightly increases to 54 mm (2.1 in), while humidity rises to 91%. For a more detailed look at the weather patterns in November, you can check Turku weather in November.
May and December present starkly contrasting weather conditions. In May, temperatures range from a chilly -5°C (24°F) at night to a warm average of 10°C (50°F) during the day, peaking at 28°C (83°F). The month experiences around 48 mm (1.9 in) of precipitation over approximately 10 days, with humidity averaging 77%. In contrast, December brings much harsher conditions, with nighttime lows plummeting to -21°C (-5°F) and an average temperature of 0°C (31°F), climbing only to a maximum of 7°C (45°F). Higher precipitation levels of 74 mm (2.9 in) occur over 14 days, accompanied by increased humidity at 89%. For more details on the severe weather conditions in December, check out Turku weather in December.
As May arrives in Turku, the city transitions gracefully into milder temperatures, showcasing a striking contrast to the cooler months that precede it. With maximum temperatures reaching up to 28°C (83°F), it's a time of vibrant blooms and longer daylight hours. While the average may linger around a cozy 10°C (50°F), the occasional chill is a reminder of winter’s tail end, with lows dipping to -5°C (24°F). Precipitation becomes more frequent, with about 10 days marked by rain, yet the overall humidity at 77% keeps the air feeling fresh. This unique blend makes May a lovely prelude to summer, setting the stage for the warmer months ahead. For a deeper dive into the climatic patterns of this charming Finnish city, check out Turku Climate.