Last updated: August 21, 2025
In Vaasa, Finland, May brings a delightful transition into spring, with maximum temperatures reaching a warm 25°C (78°F) while the average rests at a comfortable 8°C (47°F). However, cool evenings may dip to a brisk -4°C (26°F). During this month, residents can expect a moderate precipitation total of 42 mm (1.6 in) over approximately 7 days, contributing to a humidity level of around 77%. As flora awakens and the days get longer, May is a vibrant time to experience the scenic beauty of Vaasa.
As May unfolds in Vaasa, Finland, temperatures experience a delightful transformation, marking a clear departure from the deep chill of winter. The month begins with a minimum of -4°C (26°F), but as the days progress, the average temperature rises to a pleasant 8°C (47°F) and can peak at a warm 25°C (78°F). This range signifies a significant warming trend when compared to the preceding months, making May a breath of fresh air after the harshness of winter. The transition is palpable as the city transitions from the subzero temperatures of early spring to the cusp of summer warmth, inviting residents and visitors alike to embrace outdoor activities and the blooming beauty of nature.
In May, Vaasa experiences a moderate precipitation level of 42 mm (1.6 in), maintaining a steady trend observed through the spring months, with rainfall comparable to April's 39 mm (1.5 in). This month also sees 7 days of rain, aligning with the trend of occasional showers that define the late spring atmosphere. As the region transitions into summer, May’s precipitation lays a foundation for lush greenery, topping off the wetter months of March and April while foreshadowing the eventual rise in rainfall during June and July. The consistency in rain patterns, while not excessive, ensures that nature flourishes, making May a vibrant time for residents and visitors alike in this charming Finnish city.
In May, Vaasa, Finland experiences a refreshing shift with humidity dipping to 77%, marking a distinct departure from the frigid, moisture-laden months of winter. This reduction hints at the approach of summer, offering a more comfortable environment after the consistently high humidity levels of earlier months—95% in January and 93% in February. As spring unfolds, humidity steadily declines, reaching its lowest point in June at 74% before gradually rising again in the summer months. The overall trend indicates a transition from the heavy dampness of winter towards the lighter, more breathable air of late spring, making May a pleasant time to enjoy the natural beauty of Vaasa.
As May arrives in Vaasa, Finland, the UV Index begins to climb, reaching 5, which falls into the moderate exposure category. This indicates a shift from the lower levels seen during the winter months, where the UV Index languished at 1. With a burn time of just 30 minutes, outdoor enthusiasts should take note—it's a reminder that sun safety is important even in the cooler northern climate. Following May, the UV Index peaks in June and July, escalating to 6—considered high exposure—before tapering off again in August. For those enjoying the longer days of spring and early summer, keeping an eye on the UV levels is crucial to protect their skin. For more details, check out the Vaasa UV Index.
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As spring transitions into summer, May shines brightly in Vaasa, Finland, boasting an impressive 463 hours of sunshine, a significant jump from the 362 hours recorded in April. This increase not only underscores May as a vibrant month filled with daylight but also sets the tone for the sun-soaked days of June, which typically reaches the highest average at 509 hours. The progressive rise in sunshine hours from January's mere 48 hours through to May illustrates a beautiful awakening of light, perfectly mirroring the blossoming of nature in this scenic coastal town. Residents eagerly anticipate the longer days, embracing the warmth as it heralds the onset of summer after the long, dark winter months.
In Vaasa, Finland, the likelihood of sunny weather experiences a notable shift as the seasons progress. Starting with a mere 5% chance of sunshine in January, the odds gradually increase, reaching 50% by April. However, May presents a slight dip, with the chance of sun dropping to 35%. This fluctuation signifies a transition as spring gives way to summer, but the month still offers a fair share of brightness compared to the earlier months. The trend continues upward in June and July, highlighting the sunny potential that summer brings to the region. Overall, while May may not boast peak sunshine, it remains a promising month in the journey towards the glorious summer days ahead.
In Vaasa, Finland, the transition from winter to summer is vividly marked by a significant increase in daylight hours, creating a dramatic progression that captivates residents and visitors alike. Beginning January with a mere 5 hours of daylight, the city gradually awakens as February brings 8 hours, and by March, sunlight extends to 11 hours. The momentum builds as April approaches 15 hours, signaling the arrival of spring. May is particularly enchanting with 18 hours of daylight, as the days grow longer and vibrant nature beckons outdoor activities. This upward trend peaks in June with an impressive 20 hours, before gradually receding in the subsequent months. As July sees another 18 hours, August follows closely with 16 hours, leading to a soft decline through September’s 12 hours and October’s 9 hours. As the year winds down, November offers 6 hours, and the cycle returns to December’s limited 4 hours. This seasonal rhythm not only marks the changing face of nature but also influences the lifestyle and mood of the community throughout the year.
May in Vaasa, Finland, often brings a gentle breeze with an average wind speed of 3.4 m/s (8 mph), slightly lower than the preceding months. This trend reflects a gradual decrease in wind speeds as spring settles in, with March peaking at 4.5 m/s (10 mph) as winter waned. As the days grow longer and warmer, the winds soften, providing a serene backdrop for outdoor activities. The consistent winds throughout early spring hint at the distinctive seasonal transitions in Vaasa, culminating in the warmer months where wind speeds reach their annual low before picking up again in the fall. Overall, May's calm winds create a delightful atmosphere, perfect for enjoying the blossoming nature of this beautiful Finnish coastal city.
Weather in Vaasa varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Vaasa, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between May and January, we see a stark contrast in temperatures and conditions. May experiences a range from a chilly minimum of -4°C (26°F) to a pleasant maximum of 25°C (78°F), with an average temperature of 8°C (47°F) and relatively moderate humidity at 77%. In contrast, January is much colder, with minimum temperatures plunging to -24°C (-11°F) and a maximum of only 8°C (47°F). The average temperature for January stands at -3°C (26°F), coupled with high humidity at 95%. Both months see similar precipitation levels—42 mm (1.6 in) in May and 38 mm (1.5 in) in January—but January has a slightly longer duration of rainfall, occurring over 9 days versus 7 days in May. For a closer look at January’s conditions, refer to Vaasa weather in January.
When comparing the weather in May and February, there is a stark contrast in temperatures and overall climate conditions. May experiences a wide temperature range, with minimums at -4°C (26°F), average highs reaching 25°C (78°F), and an average of 8°C (47°F), accompanied by a relatively moderate humidity of 77%. In contrast, February is significantly colder, with minimum temperatures dropping to -22°C (-8°F) and average highs only reaching 7°C (44°F). Additionally, February has a higher humidity level at 93% and similar precipitation levels, with 43 mm (1.7 in) over 7 days. For more details, you can check Vaasa weather in February.
March and May present stark contrasts in weather conditions. In March, temperatures can plummet to as low as -25°C (-13°F), with an average of -1°C (30°F) and a maximum of 10°C (49°F). The month also sees greater humidity levels at 91% and experiences precipitation on 11 days, accumulating 41 mm (1.6 in) of moisture. In contrast, May offers a much milder climate, with temperatures ranging from a minimum of -4°C (26°F) to a pleasant maximum of 25°C (78°F), averaging around 8°C (47°F). The precipitation in May is slightly higher at 42 mm (1.6 in), but it occurs over fewer days (7 days), and the humidity level is a relatively lower 77%. For a more detailed look at March weather, visit Vaasa weather in March.
In comparing the weather patterns of April and May, it’s evident that May experiences milder temperatures, with an average of 8°C (47°F), compared to April's average of just 3°C (37°F). While April can still drop to a chilly minimum of -13°C (9°F), May's temperatures rarely fall below -4°C (26°F). Both months see similar levels of precipitation, around 39 mm (1.5 in) in April and 42 mm (1.6 in) in May, with rain occurring on roughly 7 days in each month. However, May tends to have slightly lower humidity at 77%, compared to April's 85%, making it feel a bit more comfortable. For more detailed information, you can check Vaasa weather in April.
May and June exhibit notable differences in weather patterns. May experiences cooler temperatures, with a minimum of -4°C (26°F) and an average of 8°C (47°F), while June sees warmer conditions, starting from a minimum of 1°C (34°F) and reaching an average of 15°C (59°F). The maximum temperature in May can reach up to 25°C (78°F), whereas June enjoys highs of 29°C (85°F). In terms of precipitation, June is wetter, receiving 57 mm (2.2 in) over 10 days, compared to May’s 42 mm (1.6 in) spread across 7 days. Humidity levels remain relatively high in both months, but June is slightly lower at 74% compared to May's 77%. For more details on June weather specifically, you can check Vaasa weather in June.
In comparing May and July weather, May showcases a broader temperature range with minimums dipping to -4°C (26°F) and maximums reaching up to 25°C (78°F), averaging around 8°C (47°F). This month experiences 42 mm (1.6 in) of precipitation over approximately 7 days and boasts a humidity level of 77%. In contrast, July has a more temperate climate, featuring minimum temperatures of 5°C (42°F) and a striking maximum of 32°C (90°F), with an average temperature of 17°C (63°F). Rainfall increases slightly to 59 mm (2.3 in) spread over 10 days, while humidity edges up to 80%. For more detailed insights on July weather specifically, check out Vaasa weather in July.
The weather in May and August showcases a notable shift as spring transitions into summer. In May, temperatures range from a chilly minimum of -4°C (26°F) to a pleasant maximum of 25°C (78°F), with an average of 8°C (47°F), while humidity sits at 77%. Precipitation in May amounts to 42 mm (1.6 in) over about 7 days.
Conversely, August brings a warmer climate, with temperatures starting at a minimum of 5°C (41°F), averaging 15°C (60°F), and reaching up to 29°C (85°F). This month also experiences increased rainfall, totaling 84 mm (3.3 in) over approximately 13 days, accompanied by slightly higher humidity at 82%. For a more detailed overview of the weather in August, you can visit Vaasa weather in August.
May and September present distinct weather profiles. In May, temperatures range from a brisk -4°C (26°F) to a comfortable max of 25°C (78°F), with an average of 8°C (47°F). The month experiences relatively low precipitation at 42 mm (1.6 in) over about 7 days, accompanied by a humidity level of 77%. In contrast, September sees a slightly higher average temperature of 11°C (52°F) with daily highs reaching up to 24°C (75°F) and lows around 0°C (32°F). However, it is wetter, recording 75 mm (2.9 in) of rainfall over 13 days and higher humidity at 88%. For a closer look at the September weather, you can visit Vaasa weather in September.
When comparing the weather in May and October, notable differences emerge in both temperature and precipitation patterns. May enjoys a wider temperature range, with minimums around -4°C (26°F) and maximums reaching up to 25°C (78°F), contributing to an average of 8°C (47°F). In contrast, October is significantly cooler, featuring minimums of -9°C (17°F) and maximums that cap at 17°C (64°F), resulting in an average of just 6°C (43°F). Additionally, October experiences heavier rainfall, with 84 mm (3.3 in) of precipitation over 15 days, compared to May's 42 mm (1.6 in) over only 7 days. The humidity also rises in October to 92%, compared to May's 77%. For more details on the weather in October, you can check Vaasa weather in October.
May and November present contrasting weather conditions, with May typically enjoying milder temperatures and more sunshine. In May, temperatures range from a minimum of -4°C (26°F) to a maximum of 25°C (78°F), with an average of 8°C (47°F), and precipitation totaling 42 mm (1.6 in) over about 7 days, accompanied by a humidity level of 77%. In stark contrast, November experiences much colder temperatures, with a minimum of -17°C (2°F) and a maximum of 12°C (53°F), averaging around 2°C (36°F). November also sees increased precipitation of 57 mm (2.2 in) spread over 10 days and higher humidity at 92%. For more detailed insights into this season's weather, you can check Vaasa weather in November.
May and December offer stark contrasts in weather. In May, temperatures range from a minimum of -4°C (26°F) to a pleasant maximum of 25°C (78°F), with an average of 8°C (47°F). The humidity sits at a comfortable 77%, and precipitation is relatively low at 42 mm (1.6 in) over about 7 days. In contrast, December features much colder conditions, with temperatures dropping to a minimum of -24°C (-11°F) and an average of -2°C (29°F), reaching a maximum of just 6°C (43°F). December also brings increased precipitation of 53 mm (2.1 in) spread across 14 days, and the humidity rises to 93%, making the air feel even colder. For more information, check Vaasa weather in December.
As spring blossoms into May, Vaasa experiences a welcome shift in weather that sets it apart from the earlier months of the year. With temperatures gradually rising, days become more enjoyable, with averages hovering around a comfortable 8°C, and maximums reaching up to 25°C on warmer days. The rainfall is modest, with only about 42 mm spread over just 7 days, which keeps the scenery lush but still allows for plenty of sunshine. The humidity remains fairly high at 77%, contributing to that refreshing spring atmosphere. Overall, May is a vibrant transition month, bridging the chilly remnants of winter with the warmer joys of summer. For a deeper understanding of what to expect, check out Vaasa Climate.