Last updated: August 21, 2025
Experience the beautiful August weather in Hanko, Finland, where the temperature gracefully ranges from a maximum of 23°C (73°F) to a minimum of 11°C (51°F), with a comfortable average of 17°C (63°F). This month brings a modest precipitation total of 94 mm (3.7 in), spread over 13 days, contributing to the lush green landscape typical of this coastal region. With an humidity level of 83%, the air feels pleasantly fresh, inviting outdoor adventures and serene moments by the sea.
In Hanko, Finland, August presents a delightful transition from summer's warmth to the cooler embrace of autumn. With minimum temperatures around 11°C (51°F) and averages peaking at 17°C (63°F), this month offers comfortable conditions perfect for enjoying outdoor activities. The maximum temperatures can reach up to 23°C (73°F), allowing for pleasant days filled with sunshine. Compared to the previous months, a gradual decline in temperatures can be observed as Hanko gracefully shifts from the highs of July, yet August retains a lovely warmth that lingers in the air. This transitional period makes August a splendid time to experience the natural beauty and charm of Hanko before the crispness of fall sets in.
August marks a notable peak in precipitation in Hanko, Finland, receiving an impressive 94 mm (3.7 in) of rain over 13 days. This significant increase from the previous months underscores a transition into the wetter season, as July's rainfall of 57 mm (2.2 in) over just 8 days gives way to more substantial August downpours. Following the relatively dry spring months, August not only revitalizes the lush landscapes but also sets the stage for September's consistent rainfall of 71 mm (2.8 in). As autumn approaches, the trend reveals a gradual escalation in both the amount and frequency of precipitation, enhancing the region’s vibrant natural beauty.
In Hanko, Finland, the August humidity is typically around 83%, reflecting a slight rise from the summer months of July and June, both at 80%. This subtle increase signals a transition as the warm season gives way to the cooler, more humid months ahead. Throughout the year, humidity remains relatively high, peaking in the winter with 92% in January and gradually decreasing to its lowest at 76% in May. As summer concludes, August's humidity is not only higher than the preceding months but also sets the stage for the approaching autumn, characterized by a gradual climb back towards 87% in September and beyond. This cyclical trend highlights Hanko's consistently moist climate, ensuring the coastal town remains lush and vibrant even as the seasons shift.
In August, Hanko, Finland experiences a UV Index of 5, indicating a moderate exposure category. This marks a slight decrease from the higher levels seen in the summer months of June and July, when the index peaked at 7. Despite the drop, sun safety remains important, as the average burn time at this index is around 30 minutes. As the season transitions from the high summer sun towards autumn, it’s essential to remain aware of UV radiation levels. For further insights into the UV index throughout the year, check out Hanko UV Index.
UV Risk Categories
August in Hanko, Finland, continues the trend of summer’s lingering warmth, basking in 418 hours of glorious sunshine. This month marks a noticeable decline from the peak brightness of June with 490 hours, yet it remains significantly brighter than the dreary days of winter. As the season shifts toward autumn, the sunlight gradually diminishes, but August still provides ample opportunity for outdoor activities under the sun-drenched skies. The light, combined with the stunning coastal scenery, makes this month a special time to savor the last golden days before the sun retreats further, heralding the transition to shorter days ahead.
In Hanko, Finland, August brings a moderate chance of sunny weather, with the likelihood of sunshine sitting at 38%. This figure marks a decrease from July's peak of 61%, suggesting that while summer is still in full swing, the sunny days may start to thin out as autumn approaches. Interestingly, the trend shows a general rise in sunny prospects from winter months, with January hovering around a mere 5%, climbing steadily to the summer months. After experiencing the warmest and sunniest days of July, visitors can expect a pleasant, albeit less predictably bright, August as the days gradually shorten.
In Hanko, Finland, August marks a gentle shift in daylight as the sun graces the sky for about 15 hours each day. This month sits comfortably between the peak of summer in June, with its impressive 18 hours of daylight, and the gradual retreat of sunlight seen in September. As the vibrant long days of July cool to a more moderate length, August still offers ample opportunities for outdoor adventures and enjoying the natural beauty of the region. As the year progresses, daylight begins its steady decline, foreshadowing the cozy embrace of autumn. This rhythmic seasonal cycle encapsulates the charm of Hanko, where each month brings its own unique ambiance and atmosphere.
As the summer wanes and August unfolds in Hanko, Finland, the average wind speed reaches a pleasant 7.1 m/s (16 mph), providing a refreshing breeze that hints at seasonal change. This month sees a modest uptick from the calmer winds of June and July, where speeds dipped to their annual lows of 4.8 m/s (11 mph) and 5.8 m/s (13 mph), respectively. With August's winds becoming more robust, there’s a transition towards the vigorous gales of autumn, which will peak in October at 9.3 m/s (21 mph). Overall, August strikes a balance, subtly reminding residents and visitors alike that the vibrant energy of summer is giving way to the invigorating briskness of fall.
Weather in Hanko varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Hanko, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January showcase stark contrasts in weather. In August, temperatures hover between a minimum of 11°C (51°F) and a maximum of 23°C (73°F), accompanied by an average of 17°C (63°F). The month experiences significant rainfall, with 94 mm (3.7 in) of precipitation over approximately 13 days, and humidity levels are relatively high at 83%. In contrast, January presents a much colder climate, with temperatures ranging from a biting -13°C (8°F) to a maximum of 8°C (46°F) and an average of just 1°C (33°F). Despite receiving less precipitation at 56 mm (2.2 in) across 14 days, the humidity remains elevated at 92%. For a detailed look at January weather in Hanko, you can visit Hanko weather in January.
August and February present stark contrasts in weather conditions. In August, temperatures range from a mild 11°C (51°F) to a comfortable maximum of 23°C (73°F), with an average of 17°C (63°F). The month experiences significant precipitation, totaling 94 mm (3.7 in) over approximately 13 days, accompanied by high humidity levels of 83%. In contrast, February brings much colder temperatures, with a minimum of -13°C (10°F) and a maximum of just 6°C (43°F), averaging -1°C (31°F). Precipitation in February is lower at 49 mm (1.9 in), spread over about 11 days, and the humidity is slightly higher at 91%. For more detailed insights, check Hanko weather in February.
August and March present stark contrasts in weather conditions. In August, temperatures range from a minimum of 11°C (51°F) to a maximum of 23°C (73°F), making it a warmer month with an average of 17°C (63°F). The humidity is relatively high at 83%, with precipitation occurring on 13 days, totaling 94 mm (3.7 in). In contrast, March experiences much colder temperatures, with a minimum of -10°C (13°F) and a maximum of only 7°C (44°F), averaging around 0°C (33°F). Although March has slightly lower precipitation at 50 mm (2.0 in) over 10 days, the humidity remains high at 90%. For more details on March weather specifically, you can visit Hanko weather in March.
When comparing the weather in August and April, it's clear that August offers significantly warmer temperatures, with averages around 17°C (63°F) compared to April's chilly average of just 3°C (38°F). The maximum temperature in August reaches up to 23°C (73°F), making it a much more pleasant time for outdoor activities compared to April's maximum of 9°C (49°F). However, August experiences higher precipitation, with 94 mm (3.7 in) falling over 13 days, whereas April sees only 28 mm (1.1 in) across 7 days. Despite its lower precipitation, April has slightly higher humidity at 87%, compared to August's 83%. For specific details about April weather, you can refer to Hanko weather in April.
In comparing the weather between May and August, notable differences emerge. August boasts warmer temperatures, with averages reaching 17°C (63°F) and maximums of 23°C (73°F), while May experiences cooler conditions, averaging only 8°C (46°F) and peaking at 18°C (64°F). Additionally, August is characterized by higher humidity levels at 83% compared to 76% in May, contributing to a more muggy atmosphere. Precipitation also varies significantly; August sees 94 mm (3.7 in) over 13 days, while May has just 36 mm (1.4 in) spread over 7 days, making May typically the drier month. For more details, you can check Hanko weather in May.
When comparing the weather in August and June, it is evident that August tends to be slightly warmer and wetter. In August, temperatures range from a minimum of 11°C (51°F) to a maximum of 23°C (73°F), with an average of 17°C (63°F). The month sees an average of 94 mm (3.7 in) of precipitation over about 13 days, and humidity levels are relatively high at 83%. In contrast, June offers cooler temperatures, with a minimum of 6°C (44°F) and a maximum of 22°C (73°F), averaging 14°C (57°F). It has significantly less rainfall, totaling 37 mm (1.5 in) spread across only 6 days, and slightly lower humidity at 80%. For more detailed information, visit Hanko weather in June.
In comparing the weather between July and August, July tends to be slightly warmer, with maximum temperatures reaching 25°C (76°F) compared to August's peak of 23°C (73°F). Both months have similar average temperatures of 17°C (63°F), but July experiences a bit lower minimum temperature of 12°C (53°F), while August dips slightly to 11°C (51°F). Precipitation in August is notably higher, amounting to 94 mm (3.7 in) over 13 days, compared to July's 57 mm (2.2 in) over just 8 days, leading to a slightly more humid atmosphere in August with humidity levels around 83%, compared to 80% in July. For a more detailed look at July weather, check out Hanko weather in July.
August tends to offer warmer temperatures, with an average of 17°C (63°F) compared to September's cooler average of 14°C (57°F). The maximum temperatures in August reach up to 23°C (73°F), while September peaks at 20°C (68°F). In terms of precipitation, August is wetter, receiving 94 mm (3.7 in) over 13 days of rain, while September has a reduced total of 71 mm (2.8 in) over 14 days. Humidity is slightly higher in September at 87%, compared to 83% in August. For more detailed insights on September weather, check out Hanko weather in September.
In comparing the weather of August and October, a noticeable shift in temperature and conditions can be observed. August typically enjoys milder temperatures, with an average of 17°C (63°F) and maximums reaching up to 23°C (73°F), making it quite pleasant despite a fair amount of precipitation at 94 mm (3.7 in) over 13 days and a high humidity level of 83%. In contrast, October brings a chillier atmosphere, with average temperatures dropping to 10°C (49°F) and maximums peaking at just 16°C (61°F). The month also sees an increase in precipitation to 123 mm (4.8 in) across 19 days and a slight rise in humidity to 90%. For a detailed look at October's weather patterns, you can check Hanko weather in October.
August and November present distinctly different weather patterns. In August, temperatures are relatively mild, with an average of 17°C (63°F) and a maximum of 23°C (73°F), accompanied by a substantial amount of precipitation—94 mm (3.7 in) spread over 13 days, and a humidity level of 83%. In contrast, November is significantly colder, with temperatures ranging from a minimum of -3°C (26°F) to an average of 6°C (43°F), peaking at 13°C (56°F). Moreover, November sees slightly less precipitation at 82 mm (3.2 in), but it occurs over a longer period of 17 days, along with increased humidity at 91%. For more details about November weather in Hanko, you can check out Hanko weather in November.
August and December present striking contrasts in weather. In August, temperatures range from a mild 11°C (51°F) at night to a warm 23°C (73°F) during the day, with an average of 17°C (63°F). The month sees about 94 mm (3.7 in) of rainfall spread over approximately 13 days, accompanied by a comfortable humidity level of 83%. In contrast, December brings chillier conditions, with temperatures dropping to a minimum of -9°C (17°F) and peaking at only 8°C (46°F), averaging around 2°C (36°F). Although precipitation is slightly lower at 80 mm (3.1 in), it occurs over more days—about 19—with humidity reaching a high of 90%. For more details on December weather, check out Hanko weather in December.
As August unfolds in Hanko, the weather begins to transition, offering a blend of lingering summer warmth and the refreshing hints of autumn. With an average temperature around a comfortable 17°C, days are still pleasant but noticeably cooler compared to the peak summer months. While precipitation increases, with about 94 mm of rain over 13 days, this added moisture contributes to the lush greenery surrounding the area. Coupled with a high humidity level of 83%, the air feels notably more invigorating. For an in-depth look at how Hanko's weather evolves throughout the year, visit Hanko Climate.