Last updated: August 21, 2025
August in Joensuu, Finland offers a delightful blend of summer warmth and occasional rainfall. With maximum temperatures soaring up to 29°C (85°F) and an average of 15°C (60°F), this month invites outdoor adventures amid lush landscapes. However, be prepared for the unpredictable, as 99 mm (3.9 in) of rain falls over 16 days, creating a vibrant, refreshing atmosphere. The high humidity at 88% adds a touch of softness to the air, making the evenings perfect for leisurely strolls by the water. While sunshine may be interspersed with clouds, August remains a picturesque time to explore the natural beauty of Joensuu.
In Joensuu, Finland, August marks a transition into the embrace of late summer, offering a pleasant respite from the harsher temperatures of winter. With minimum temperatures averaging around 7°C (45°F) and soaring to a comfortable 29°C (85°F), the month showcases a delightful warmth that encourages outdoor activities and exploration. The average temperature stabilizes at 15°C (60°F), striking a balance that makes late evenings particularly inviting. As the month progresses, however, subtle hints of autumn begin to emerge, with cooling evenings hinting at the seasonal shift to come, paving the way for the crisp air of September. This gradual transition means that August is a prime time to enjoy the tail end of summer's warmth before the landscape changes to fall's stunning hues.
August in Joensuu, Finland, marks a notable peak in precipitation, with 99 mm (3.9 in) of rainfall recorded over 16 days. This increase compared to the previous months highlights a distinct trend as summer transitions into autumn. Following a relatively wet July, August's rainfall represents the culmination of the warmer months, contributing significantly to the overall annual totals. The consistent pattern of rainy days in August not only saturates the vibrant landscapes but also sets the stage for the changing seasons ahead, reflecting a landscape in constant transformation as it prepares for the cooler months.
August in Joensuu, Finland, brings a noticeable shift in humidity, with levels rising to 88%. This marks a slight increase from the drier summer months of June and July, which hover at 75% and 83%, respectively. As the year progresses, the humidity levels typically fluctuate, peaking in the colder months—January and February boast impressive levels of 99% and 98%. August serves as a transitional month, bridging the warmth of summer with the approaching autumn's dampness, as humidity levels begin to edge closer to the consistently high percentages typical of the fall and winter. This pattern reflects the dynamic climate of Joensuu, where the interplay between temperature and humidity shapes the region’s unique seasonal experience.
In August, Joensuu experiences a UV Index of 5, indicating a moderate level of solar radiation that warrants some caution. As summer peaks, the city's residents enjoy longer days but must remain mindful of their sun exposure, with a recommended burn time of 30 minutes. This is a slight decline from the higher indices seen in June and July, where the UV Index reached 6. The trends throughout the year reveal a gradual increase in UV levels from winter's low readings of 1 in January and February to a maximum of 6 during the summer months. As we transition towards autumn, the UV Index in September drops to 3, reminding us to adapt our sun protection habits as the daylight hours wane. To stay informed about UV levels year-round, visit Joensuu UV Index.
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In Joensuu, Finland, the month of August brings a delightful shift as the summer days begin to wane, offering 383 hours of sunshine. This marks a significant decline from the sun-drenched June peak of 493 hours, yet it remains a vibrant culmination of the summer season. July sees a slight dip to 477 hours, but August maintains a respectable glow, providing ample daylight for outdoor activities and exploration. As the landscape transitions into autumn, the hours of sunshine quickly taper off in September and October, reinforcing the fleeting nature of summer in this beautiful northern town. The gradual increase in sunlight from January's mere 34 hours to the midsummer highs highlights the beauty of seasonal change in Joensuu, making August a particularly cherished month for residents and visitors alike.
In Joensuu, Finland, the likelihood of sunny weather experiences notable fluctuations throughout the year. Starting at a mere 2% in January, the chances gradually rise, peaking in the heart of summer with a 53% likelihood in July. However, as August rolls in, the chances of sunshine dip to 26%. This trend signifies that while the summer months generally bring brighter days, the transition into late summer can lead to a decline in sunny weather. As autumn approaches, the likelihood continues to diminish, with only 22% in September and further plummeting through the fall. This cyclical pattern highlights Joensuu's distinct seasonal character, where the fleeting warmth of summer is cherished before the cooler months set in.
In Joensuu, Finland, August marks a significant transitional phase in daylight hours, as the city experiences about 15 hours of sunlight—a notable drop from the prolonged 19 hours of daylight in June. This month showcases a graceful descent towards autumn, beginning to relinquish the long, vibrant days of summer. As residents bask in the lingering light, they can feel the subtle shift in daylight that heralds the coming of September, which offers only 12 hours of sunshine. This pattern of daylight variation not only defines the natural rhythm of life in Joensuu but also beautifully illustrates the contrast between the exuberance of summer and the approaching coziness of fall.
In August, Joensuu experiences a notable uptick in wind speed, averaging 3.6 m/s (8 mph). This increase from the calmer summer months—where July sees a gentle breeze of just 2.9 m/s (6 mph)—signals a transition towards the more dynamic autumn season. While August offers a refreshing gust, it does not reach October’s peak of 4.3 m/s (10 mph), indicating a gradual buildup in windiness as the leaves begin to turn. Overall, the wind trends from late summer to autumn in Joensuu reflect a rhythmic dance between calm and brisk conditions, inviting both locals and visitors to appreciate the changing atmosphere.
Weather in Joensuu varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Joensuu, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in August is characterized by warmer temperatures, with a minimum of 7°C (45°F) and a maximum of 29°C (85°F), and an average of 15°C (60°F). During this month, precipitation occurs on about 16 days, totaling 99 mm (3.9 in), paired with high humidity levels at 88%. In stark contrast, January brings frigid conditions, with temperatures ranging from a minimum of -29°C (-19°F) to a maximum of just 5°C (41°F), while averaging -6°C (21°F). Precipitation in January is lower, at 48 mm (1.9 in), over 13 days, but humidity remains very high at 99%. For a detailed look at January’s chilly climate, visit Joensuu weather in January.
The contrast between August and February weather is striking. In August, temperatures range from a chilly 7°C (45°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (60°F). This month experiences significant humidity at 88% and receives about 99 mm (3.9 in) of rainfall over 16 days. In stark contrast, February brings much harsher conditions, with temperatures plummeting to a minimum of -27°C (-17°F) and peaking at just 4°C (40°F), resulting in an average temperature of -7°C (20°F). Additionally, this winter month has lower precipitation at 48 mm (1.9 in) over 12 days, but the humidity remains high at 98%. For a more in-depth look at February conditions, you can visit Joensuu weather in February.
The weather in August contrasts sharply with that of March. In August, temperatures range from a mild 7°C (45°F) to a warm maximum of 29°C (85°F), along with significant humidity at 88%, making it a lush and vibrant month. In contrast, March experiences much colder conditions, characterized by temperatures that can plummet to a chilling -25°C (-14°F) and average around -3°C (26°F). While March receives less precipitation at 50 mm (2.0 in) over 12 days, it also boasts a high humidity level of 95%, creating a starkly different atmosphere. For more detailed information about March weather, you can refer to Joensuu weather in March. Overall, August invites outdoor activities and warmth, while March holds onto the lingering cold of winter.
When comparing the weather in August and April, it's clear that August offers much warmer temperatures, with an average of 15°C (60°F) compared to April's chilly average of just 1°C (35°F). In August, temperatures can reach a high of 29°C (85°F), while April sees its maximum at only 17°C (64°F). Precipitation is also notably higher in August, with 99 mm (3.9 in) falling over 16 days, versus April's 41 mm (1.6 in) over just 9 days. Humidity levels remain relatively similar, with August at 88% and April at 87%. For more detailed insights into April weather, you can visit Joensuu weather in April.
When comparing the weather in August and May, we can see significant differences in temperature and humidity. August typically experiences milder conditions, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 29°C (85°F), whereas May starts much colder, with minimums around -4°C (25°F) and maximums of 26°C (79°F). Additionally, August is generally wetter, with 99 mm of precipitation over 16 days compared to May's 55 mm over 11 days. The humidity is also higher in August at 88%, compared to 78% in May. For more detailed insights on May weather, check out Joensuu weather in May.
When comparing the weather in August and June, it is clear that August tends to be warmer overall, with maximum temperatures reaching up to 29°C (85°F), while June sees a slightly higher maximum of 31°C (87°F). However, the average temperatures for both months are the same at 16°C (60°F). August also experiences higher precipitation, totaling 99 mm (3.9 in) over 16 days, compared to June's 58 mm (2.3 in) over 11 days. Additionally, humidity is noticeably higher in August at 88%, compared to 75% in June, making August feel more muggy and damp. For more detailed information, you can check Joensuu weather in June.
In comparing the weather of August to that of July, August tends to be slightly cooler with an average temperature of 15°C (60°F), while July boasts a warmer average of 17°C (63°F). The maximum temperatures in August reach 29°C (85°F), compared to July's peak of 31°C (88°F). Additionally, August experiences more precipitation, totaling 99 mm (3.9 in) over 16 days, whereas July sees 89 mm (3.5 in) over 12 days. The humidity is also slightly higher in August at 88%, compared to July's 83%. For a more detailed look at July's weather, you can visit Joensuu weather in July.
August and September present notable differences in weather patterns. In August, temperatures range from a minimum of 7°C (45°F) to a maximum of 29°C (85°F), and the month sees an average temperature of 15°C (60°F). However, with 99 mm (3.9 in) of precipitation over 16 days and an average humidity of 88%, August can feel quite damp. In contrast, September brings cooler temperatures, with a minimum of 0°C (32°F), an average of 10°C (51°F), and a maximum of 22°C (72°F). While it has slightly less precipitation at 87 mm (3.4 in) over 14 days, the humidity increases to 92%. For a closer look at September's conditions, you can visit Joensuu weather in September.
August and October showcase a stark contrast in weather conditions. In August, temperatures range from a minimum of 7°C (45°F) to a maximum of 29°C (85°F), with an average of 15°C (60°F), creating a warm climate perfect for summer activities. However, October brings a significant drop in temperatures, with minimums reaching -6°C (21°F) and an average of only 5°C (41°F), while the maximum temperature peaks at 17°C (62°F). Both months experience similar levels of precipitation, with August recording 99 mm (3.9 in) and October slightly less at 86 mm (3.4 in), though October has a higher humidity at 95% compared to August's 88%. For more detailed information, check out Joensuu weather in October.
In August, temperatures in Joensuu range from a mild 7°C (45°F) to a warm 29°C (85°F), with an average of 15°C (60°F). The month sees frequent rainfall, totaling 99 mm (3.9 in) over 16 days, combined with high humidity at 88%. Conversely, November presents a stark contrast, where temperatures drop dramatically, with a minimum of -16°C (3°F) and an average of just 1°C (33°F), reaching a maximum of 10°C (50°F). Precipitation decreases to 64 mm (2.5 in) over 13 days, while humidity rises slightly to 94%. For more detailed insights, check out Joensuu weather in November.
In August, temperatures in Joensuu experience a wide range, with lows around 7°C (45°F) and highs reaching up to a warm 29°C (85°F), averaging around 15°C (60°F). The month sees considerable humidity at 88% and receives about 99 mm (3.9 in) of precipitation over 16 days, making for a humid summer experience. In stark contrast, December brings frigid conditions, with minimum temperatures plunging to -23°C (-9°F) and a maximum of just 3°C (38°F), averaging -4°C (25°F). While December has less precipitation at 73 mm (2.9 in), the humidity is even higher at 98%, contributing to the chilly climate. For more details on the December weather, check out Joensuu weather in December.
As summer transitions into autumn, August in Joensuu presents a compelling mix of warm days and cooling nights. The atmosphere is characterized by high humidity, creating a lush, vibrant environment, yet it also brings along a fair amount of rainfall. With occasional warm spells and the average temperature trailing behind the peak summer months, August offers a unique blend of weather patterns that differentiate it from earlier in the season. Those looking to explore the beauty of Joensuu in this transitional month can expect a refreshing experience, although the frequent rain may require some indoor plans. For a deeper dive into the city's weather patterns, visit Joensuu Climate.