Last updated: August 21, 2025
Hamina, Finland, in October offers a refreshingly brisk climate as temperatures fluctuate between a maximum of 16°C (62°F) and a minimum of -4°C (26°F), yielding an average of 7°C (45°F). With approximately 84 mm (3.3 in) of rainfall spread over 16 days, the month is characterized by high humidity levels at 94%, creating a mellow, misty atmosphere. This blend of cool temperatures and frequent precipitation sets the stage for vibrant autumn foliage, making it an enchanting time to explore this charming coastal town.
In Hamina, Finland, October marks a significant transition as autumn deepens into winter. The temperatures during this month dip to a minimum of -4°C (26°F), with an average temperature hovering around 7°C (45°F) and peaking at a maximum of 16°C (62°F). This shift leads to a crispness in the air, foreshadowing the chillier months ahead. With day temperatures gradually falling from the warmer early autumn weeks of September, residents and visitors alike can expect a refreshing coolness that makes for perfect sweater weather. As nature transitions, the stunning fall foliage becomes a vibrant backdrop, inviting exploration and appreciation of the serene landscapes that characterize this scenic Finnish town.
In Hamina, Finland, October marks a notable shift in precipitation patterns. With approximately 84 mm (3.3 in) of rain accumulated over 16 days, this month sees one of the highest rainfall totals of the year, following the wettest summer months in July and August. The steady increase in rainfall during the fall highlights a transition from summer's lush greenery to the stark winter landscape that follows. This increase in wet days, compared to just 12 days in September, indicates October is a significant month for moisture, setting the stage for the higher precipitation levels of the coming winter months. It’s a time when the landscape transforms, embracing the deeper shades of autumn, all while the skies gift the town with a robust curtain of rain.
As October arrives in Hamina, Finland, the atmosphere feels crisp with a humidity level of 94%, slightly elevated from 90% in September. The transition into autumn brings a subtle increase in moisture, following a consistent trend of high humidity throughout the year. Starting from 98% in January and gradually decreasing to 75% in May, humidity begins to rise again during the summer months, peaking at 85% in August. This slight uptick in October signals the onset of colder seasons, with humidity levels expected to remain steady at 94% into November, reflecting the region's characteristic dampness as winter approaches. Overall, the data illustrates a pattern of elevated humidity levels, which contribute to the unique charm of Hamina's crisp fall climate.
As we move into October, Hamina experiences a noticeable shift in the UV Index, dropping to a low exposure category with a value of 2. This decrease follows the higher UV levels of the summer months, where indices peaked at 7 in June and July, necessitating shorter safe sun exposure times of just 25 minutes. With the arrival of autumn, residents can enjoy up to 45 minutes in the sun without significant risk, much like in January and February. Overall, the trend shows a steady decline in UV exposure from the vibrant summer months to the calmer tones of fall, making October a comfortable time to enjoy the outdoors while remaining mindful of UV safety. For more detailed information on UV levels throughout the year, visit Hamina UV Index.
UV Risk Categories
October in Hamina, Finland, showcases a gentle transition as daylight starts to wane, offering 201 hours of sunshine. This month embodies a shift from the vibrant energy of summer, where July and June bask in nearly 490 hours of sunlight, to the more subdued glow of November, which sees a sharp decline to just 107 hours. As autumn deepens, the sunlit hours gradually retreat, echoing the patterns of nature as leaves turn and fall. October’s sunshine, while limited compared to the summer months, is still a cherished reprieve, inviting residents to enjoy the crisp air and vibrant foliage before winter blankets the landscape.
In Hamina, Finland, the likelihood of sunny weather sees a steady ebb and flow throughout the year, with October landing at a modest 22% chance of sun. As the seasons shift from the brightness of summer—where July boasts a peak of 59%—to the more overcast months of fall, sunshine takes a noticeable dip. Following the summer months, September shows a slight decline to 23%, and by October, residents experience one of the year’s lower probabilities for sunny days. This trend highlights the transition into the darker months, emphasizing the importance of embracing the fleeting sunny moments as autumn settles in.
As October unfolds in Hamina, Finland, the days begin to contract, reducing daylight to about 10 hours. This follows a gradual decline from the sun-drenched peaks of summer, where residents enjoyed 18 hours of light in June and July. As autumn progresses, daylight diminishes further, transitioning from a robust 15 hours in August down to 12 hours in September. The shift serves as a gentle reminder of nature's rhythm, leading to the quieter, darker months of November and December, where daylight dwindles to a mere 7 and 5 hours respectively. This seasonal dance highlights the stark contrast between the long, bright summer days and the more subdued illumination of fall and winter, inviting a unique appreciation for each phase of the year.
As October arrives in Hamina, Finland, the winds pick up, showcasing an invigorating average speed of 5.6 m/s (13 mph)—the highest recorded in the year. This month marks a noticeable shift, as winds become more prominent compared to the calmer summer months. Following August's peak of 4.7 m/s (10 mph) and September's slight decrease to 4.2 m/s (9 mph), October's gusts signal the transition into deeper autumn. Interestingly, while winter months like November and December experience a slight drop in wind speed, October stands out as a vibrant reminder of nature's dynamic changes, making it an exhilarating time for those who relish the fresh autumn air.
Weather in Hamina varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Hamina, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present stark contrasts in weather conditions. October experiences milder temperatures, ranging from a minimum of -4°C (26°F) to a maximum of 16°C (62°F), with an average of 7°C (45°F). It also sees considerable precipitation, totaling 84 mm (3.3 in) over 16 days, and has a humidity level of 94%. In contrast, January brings much colder conditions, with temperatures plunging to a minimum of -24°C (-10°F) and averaging -3°C (27°F), reaching a maximum of 7°C (46°F). While January has lower precipitation at 55 mm (2.2 in) across 12 days, it features a higher humidity level of 98%. For further information about January weather, you can check Hamina weather in January.
October and February present striking contrasts in weather conditions. In October, temperatures range from a chilly -4°C (26°F) at night to a pleasant 16°C (62°F) during the day, averaging around 7°C (45°F). With 84 mm (3.3 in) of precipitation over 16 days and high humidity at 94%, October often feels damp and cool. In contrast, February experiences much colder temperatures, with minimums plummeting to -28°C (-18°F) and daytime highs averaging just -4°C (25°F), peaking at 7°C (44°F). This winter month sees less precipitation at 56 mm (2.2 in) over 11 days, but the humidity remains high at 96%. To explore more about February weather specifically, you can check Hamina weather in February.
When comparing the weather in October and March, notable differences emerge. October experiences milder temperatures with a minimum of -4°C (26°F) and an average of 7°C (45°F), while March is considerably colder, recording a minimum of -22°C (-7°F) and an average of -1°C (30°F). Precipitation levels are higher in October, with 84 mm (3.3 in) spread over 16 days, compared to March's 50 mm (2.0 in) over 11 days. Humidity levels remain quite similar, with October at 94% and March at 93%. For a more detailed look at March weather specifically, you can visit Hamina weather in March.
When comparing the weather in October and April, one can observe notable differences. In October, temperatures range from a minimum of -4°C (26°F) to a maximum of 16°C (62°F), with an average of 7°C (45°F). This month experiences around 84 mm (3.3 in) of precipitation over approximately 16 days, accompanied by high humidity levels at 94%. In contrast, April starts off colder, with a minimum temperature of -12°C (10°F) and an average of 4°C (39°F); however, it can reach a maximum of 19°C (67°F). Precipitation is significantly lower in April, totaling 43 mm (1.7 in) over about 10 days, and humidity is somewhat lower at 87%. For more detailed information about conditions in April, check out Hamina weather in April.
October and May present contrasting weather patterns. In October, temperatures range from a chilly -4°C (26°F) to a mild 16°C (62°F), with an average of 7°C (45°F). This month is characterized by higher humidity at 94% and considerable precipitation of 84 mm (3.3 in) over 16 days. In contrast, May offers a more temperate experience, with temperatures between -3°C (27°F) and a warm 26°C (79°F), resulting in an average of 10°C (50°F). May sees less rainfall, accumulating only 49 mm (1.9 in) across 9 days, and a lower humidity level of 75%. For a more detailed look at weather conditions in May, you can visit Hamina weather in May.
October and June present striking contrasts in weather. In October, temperatures can drop to a chilling minimum of -4°C (26°F), with an average of 7°C (45°F) and a maximum of just 16°C (62°F). The month is characterized by significant precipitation, averaging 84 mm (3.3 in) over 16 days, and high humidity at 94%. In contrast, June offers a much warmer climate, where temperatures range from a minimum of 2°C (35°F) to an average of 16°C (61°F), peaking at 30°C (87°F). Precipitation in June is considerably lower, at 48 mm (1.9 in) over 10 days, with a more moderate humidity level of 74%. For a detailed look at the weather in June, you can check Hamina weather in June.
When comparing the weather in October and July, it's clear that the two months present quite different climates. October typically features cooler temperatures, with a minimum of -4°C (26°F), an average of 7°C (45°F), and a maximum of 16°C (62°F), while July boasts much warmer weather, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 31°C (88°F) and an average of 18°C (65°F). Additionally, July experiences slightly less precipitation, averaging 82 mm (3.2 in) over 11 days, compared to October's 84 mm (3.3 in) over 16 days, which indicates that October tends to be wetter. Finally, the humidity in October is significantly higher at 94%, compared to July's 80%, contributing to a feeling of chilliness that contrasts sharply with July's warmer, more comfortable conditions. For more detailed information on July weather, check out Hamina weather in July.
In October, the weather takes a significant turn as temperatures drop, with a minimum of -4°C (26°F) and an average of 7°C (45°F), compared to much warmer August, which sees a minimum of 7°C (45°F) and an average of 17°C (62°F). While October experiences a chillier atmosphere and higher humidity at 94%, August enjoys more comfort with 85% humidity and pleasant highs reaching up to 30°C (87°F). Precipitation is almost similar between the two months, with October receiving 84 mm (3.3 in) over 16 days and August recording 90 mm (3.5 in) over 13 days. For a detailed look at Hamina's weather during this time, you can check Hamina weather in August.
October experiences significantly cooler temperatures compared to September, with average highs dropping from 22°C (73°F) in September to just 16°C (62°F) in October. The minimum temperatures also reflect this change, plunging to -4°C (26°F) in October from a milder 0°C (32°F) in September. Additionally, October sees a higher total rainfall of 84 mm (3.3 in) over 16 days, compared to 67 mm (2.6 in) over 12 days in September, contributing to an increase in humidity from 90% to 94%. For more detailed insights about the weather patterns, you can check Hamina weather in September.
October and November feature notable differences in temperature and precipitation. In October, temperatures range from a minimum of -4°C (26°F) to a maximum of 16°C (62°F), with an average of 7°C (45°F) and a total precipitation of 84 mm (3.3 in) over 16 days. In contrast, November experiences cooler temperatures, with a minimum of -8°C (18°F) and a maximum of 12°C (54°F), resulting in an average of 3°C (38°F). Precipitation in November is lower at 65 mm (2.6 in) but occurs over 14 days. Both months share high humidity levels of 94%, creating a consistently damp atmosphere. For more detailed information, you can visit Hamina weather in November.
October and December exhibit notable differences in weather characteristics. In October, temperatures range from a minimum of -4°C (26°F) to a maximum of 16°C (62°F), with an average of 7°C (45°F). The month sees around 84 mm (3.3 in) of precipitation across 16 days, accompanied by high humidity levels of 94%. In contrast, December is significantly colder, with temperatures plummeting to a minimum of -18°C (0°F) and an average temperature of -1°C (30°F). The maximum temperature in December reaches only 6°C (44°F), and while precipitation amounts remain similar at 82 mm (3.2 in) over 16 days, humidity slightly increases to 96%. For more specific details on the weather conditions during this month, visit Hamina weather in December.
As October arrives in Hamina, the weather begins to transform, marking a shift from the lingering warmth of September to the crisp embrace of autumn. With average temperatures settling around 7°C, the month is characterized by cooler days and chilly nights, making it one of the colder times of the year. Precipitation becomes more frequent, with about half the month seeing rain, resulting in a notable increase in humidity levels that can reach up to 94%. This blend of wet and chilly conditions sets October apart, creating a unique atmosphere that beckons residents and visitors alike to embrace the changing seasons. For a deeper dive into the seasonal patterns and characteristics of Hamina's climate, visit Hamina Climate.