Last updated: August 21, 2025
August in Vaasa, Finland offers a delightful mix of summer warmth and refreshing breezes. With maximum temperatures reaching up to 29°C (85°F) and an average of 15°C (60°F), outdoor enthusiasts can enjoy longer days filled with sunshine. However, prepare for the occasional rainfall, as the month sees 84 mm (3.3 in) of precipitation over 13 days, contributing to a humidity level of 82%. Whether you're exploring the vibrant landscapes or indulging in local festivities, August is a captivating time to experience the unique charm of Vaasa.
In Vaasa, Finland, August marks a delightful transition into late summer, showcasing mild temperatures that warmly embrace both locals and visitors. With minimums resting at a comfortable 5°C (41°F) and averages around 15°C (60°F), the city enjoys a pleasant warmth that peaks at a maximum of 29°C (85°F). This month stands in stark contrast to the frigid depths of winter that plunge below -24°C in January. As the vibrant days of June and July set the stage, August retains a taste of summer, making it an ideal time for outdoor activities and enjoying the natural beauty of this coastal gem. The gradual cooling towards late summer hints at the impending autumn, but for now, Vaasa basks in the joyous warmth of August.
In August, Vaasa, Finland experiences a notable rise in precipitation, recording 84 mm (3.3 in) of rainfall over 13 days. This significant increase follows the milder summer months of June and July, which saw around 57 mm (2.2 in) and 59 mm (2.3 in) of rain respectively. As summer transitions into autumn, the shift toward wetter conditions becomes apparent, with both the amount of precipitation and the number of rainy days rising. This trend continues into September, where 75 mm (2.9 in) of rain falls over the same number of days, indicating a pattern of increasing rainfall that characterizes the region's late summer and early fall months. Overall, August serves as a pivotal month, marking a transition toward a wetter season in Vaasa.
In August, Vaasa experiences a moderate humidity level of 82%, a slight increase from the summer month of July at 80%. This uptick marks a seasonal trend where humidity begins to rise again after dipping to its lowest point in June (74%). As summer wanes, the air retains more moisture, effortlessly transitioning towards the fall months, where September sees humidity climbing further to 88%. Overall, August serves as a pivotal bridge in Vaasa's humidity trends, maintaining a balance between the warm summer and the imminent cooler seasons, while still feeling quite moist compared to the milder levels of late spring.
In August, Vaasa experiences a UV Index of 5, falling into the moderate exposure category. This indicates a shift from the higher summer indices seen in June and July, where the UV levels reached 6 and required a burn time of just 25 minutes. In August, residents and visitors should be aware that while the sun is still strong enough to cause skin damage, the burn time lengthens back to 30 minutes, allowing for slightly more time outdoors before taking precautions. This trend in the UV Index illustrates the gradual transition from summer to autumn, where protection from the sun remains essential. For detailed information and daily updates, visit Vaasa UV Index.
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In Vaasa, Finland, August shines brightly, contributing 430 hours of glorious sunshine to the summer months. Following the peak of summer in June with over 500 hours of light, the sunshine begins to wane in August, yet still offers a robust glow that rivals the earlier months of the season. This is a significant contrast to the winter months, where January barely sees 48 hours of sunlight. The trends in sunshine hours reveal a gradual crescendo from February's timid 148 hours to the warm embrace of summer, captivating those who revel in the sun-drenched days of early autumn. As September and October approach, Vaasa's days of radiance shrink, yet August stands out as a lingering reminder of summer's vibrant embrace.
In Vaasa, Finland, August offers a moderate chance of sunshine, with a 36% likelihood of clear skies. This marks a dip from the previous months of July, which boasts the highest sunshine probability at 55%. As summer starts to wane, the chance of sun decreases compared to the warmer mid-summer months, aligning with the trends observed throughout the year. After the peak in July, the descent in sunny days continues into September, which sees only a 24% chance. Overall, while August may not deliver an abundance of sun like July, it still retains a decent opportunity for enjoying warm and bright days before the arrival of autumn.
In August, Vaasa, Finland, enjoys a substantial 16 hours of daylight, a gentle tapering from the bright summer months. This gradual decrease reflects a trend seen throughout the year, where the length of daylight peaks in June with an impressive 20 hours before starting its slow descent. As the warmth of May and June gives way to the cooler days of fall, August still offers ample time to embrace the outdoors, bridging the vibrant energy of summer with the quieter rhythms of early autumn. The 12-hour daylight in September further signifies the transition, reminding us of the fleeting nature of summer's long, sunlit days.
In August, Vaasa experiences a slight uptick in average wind speed, averaging around 3.6 m/s (8 mph), which mirrors the conditions of the preceding month and September. This gentle breeze marks a transition, as the city shifts from the stillness of summer to the brisker winds of autumn. Compared to the earlier summer months, where winds dipped to their lowest at 3.2 m/s (7 mph) in July, August offers a refreshing change. Looking ahead, the average wind speed is set to increase significantly into the autumn months, surging to 4.8 m/s (11 mph) by October. This trend showcases Vaasa's dynamic climate, where the winds dance playfully, preparing the way for the vibrant colors and cooler temperatures of the fall season ahead.
Weather in Vaasa varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Vaasa, focusing on differences in temperature, rainfall, humidity, and UV levels.
The contrast between the weather in August and January is striking. August experiences mild temperatures, ranging from a minimum of 5°C (41°F) to a pleasant maximum of 29°C (85°F), with average temperatures around 15°C (60°F). It also has relatively high humidity at 82% and sees 84 mm of precipitation over 13 days. In stark contrast, January presents a much colder scenario, with temperatures plunging to a minimum of -24°C (-11°F) and averaging around -3°C (26°F), peaking at only 8°C (47°F). The air is much more humid at 95%, but it receives less precipitation, totaling 38 mm over just 9 days. For more details on the winter weather conditions, you can check Vaasa weather in January.
August and February present stark contrasts in weather. In August, temperatures range significantly from a minimum of 5°C (41°F) to a maximum of 29°C (85°F), with an average of 15°C (60°F). The month experiences relatively high humidity at 82% and receives 84 mm (3.3 in) of precipitation over approximately 13 days. Conversely, February is characterized by much colder conditions, with temperatures dipping as low as -22°C (-8°F) and averaging -5°C (24°F), reaching a maximum of only 7°C (44°F). The winter month has lower precipitation at 43 mm (1.7 in) across just 7 days, but it is marked by a higher humidity level of 93%. For a more detailed look at February weather, you can check out Vaasa weather in February.
The weather in August contrasts sharply with that of March. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 29°C (85°F), with an average of 15°C (60°F), and the month experiences about 84 mm (3.3 in) of precipitation spread over 13 days, accompanied by relatively high humidity at 82%. In contrast, March is characterized by much colder conditions, with temperatures dropping as low as -25°C (-13°F) and averaging -1°C (30°F), reaching a maximum of 10°C (49°F). Precipitation in March is lower at 41 mm (1.6 in) across 11 days, and the humidity is slightly higher at 91%. For a more detailed look at March weather specifics, you can visit Vaasa weather in March.
When comparing the weather in August and April, we can see a notable difference in temperatures and precipitation levels. August enjoys a warmer average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F), while April has a much cooler average temperature of just 3°C (37°F) and can drop as low as -13°C (9°F). Precipitation is more frequent in August, with rain falling on 13 days and accumulating to 84 mm (3.3 in), compared to April's 39 mm (1.5 in) over 7 days. Interestingly, the humidity levels are quite similar, with August at 82% and April slightly higher at 85%. For more detailed insights on April weather, check out Vaasa weather in April.
In comparing the weather in August and May, August is generally warmer, with average temperatures ranging from a chilly 5°C (41°F) to a high of 29°C (85°F), while May exhibits a smaller temperature range, with minimums dipping to -4°C (26°F) and maximums reaching only 25°C (78°F). August also experiences significantly more precipitation, averaging 84 mm (3.3 in) over about 13 days, compared to May’s 42 mm (1.6 in) spread over just 7 days. Despite its lower overall temperatures, May has slightly lower humidity at 77% compared to August's higher 82%. For more detailed information, visit Vaasa weather in May.
August weather is generally warmer than June, with average temperatures lingering around 15°C (60°F) and reaching a maximum of 29°C (85°F) in both months. However, August experiences slightly higher minimum temperatures, starting at 5°C (41°F), compared to June's cooler minimum of 1°C (34°F). Furthermore, August tends to be wetter, with 84 mm (3.3 in) of precipitation over 13 days, while June sees less rainfall at 57 mm (2.2 in) across 10 days. Additionally, humidity levels rise in August to 82%, compared to 74% in June, marking a more humid end to the summer season. For more details on June weather, you can check Vaasa weather in June.
In comparing the weather between July and August, August tends to be slightly cooler, with average temperatures dropping from July's 17°C (63°F) to 15°C (60°F). While both months share similar minimum temperatures of around 5°C, August experiences a lower maximum temperature of 29°C (85°F) compared to July's peak of 32°C (90°F). Additionally, August sees increased precipitation, totaling 84 mm (3.3 in) over 13 days, while July has 59 mm (2.3 in) occurring over 10 days, indicating a wetter month. Humidity levels are relatively close, with August at 82% and July at 80%. For a more detailed look at July's weather, you can check Vaasa weather in July.
August and September present a noticeable transition in weather patterns. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 29°C (85°F), with an average of 15°C (60°F), while September sees cooler temperatures, with lows dipping to 0°C (32°F) and highs reaching only 24°C (75°F), averaging at 11°C (52°F). Precipitation is slightly lower in September at 75 mm (2.9 in) compared to August's 84 mm (3.3 in), although both months experience rainfall on 13 days. Humidity increases from 82% in August to 88% in September, adding to the crispness of the air. For more details on September weather, visit Vaasa weather in September.
August and October present markedly different weather profiles. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 29°C (85°F), with an average of 15°C (60°F). The month experiences some precipitation, totaling 84 mm (3.3 in) over approximately 13 days, with humidity levels around 82%. In contrast, October sees much cooler temperatures, with minimums dropping to -9°C (17°F) and an average of only 6°C (43°F), peaking at 17°C (64°F). Despite similar precipitation totals of 84 mm (3.3 in), October experiences rain across 15 days, and humidity rises to 92%. For a more detailed look at October weather, check out Vaasa weather in October.
In August, the weather is significantly warmer, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 29°C (85°F) and an average of 15°C (60°F). The humidity sits at a comfortable 82%, although there is some precipitation, totaling 84 mm (3.3 in) over 13 days. In contrast, November brings a stark change, with much colder temperatures that dip to a minimum of -17°C (2°F), an average of 2°C (36°F), and a maximum of 12°C (53°F). Despite a lower total precipitation of 57 mm (2.2 in) over 10 days, the humidity rises to 92%, making the air feel even chillier. For detailed information, you can check out Vaasa weather in November.
August and December present stark contrasts in weather. August boasts warmer temperatures, with a minimum of 5°C (41°F) and an average around 15°C (60°F), peaking at 29°C (85°F). It experiences significant precipitation, totaling 84 mm (3.3 in) over roughly 13 rainy days, accompanied by a relatively high humidity of 82%. In contrast, December plunges into the cold, with temperatures ranging from a frigid minimum of -24°C (-11°F) to a maximum of just 6°C (43°F), averaging -2°C (29°F). This month receives less precipitation, about 53 mm (2.1 in) over 14 days, but the humidity is higher at 93%. For more detailed insights into December weather, visit Vaasa weather in December.
As summer draws to a close, August in Vaasa showcases a delightful transition in weather, offering a mix of warmth and occasional rain. With peak temperatures reaching a comfortable 29°C (85°F) and a cool average hovering around 15°C (60°F), this month stands out as a vibrant end to the season. However, it also brings increased humidity and precipitation, with about 13 days of rain contributing to the lush landscape. This combination makes August unique compared to the milder and drier months of summer. For a deeper understanding of what to expect throughout the year, explore the details at Vaasa Climate.