Last updated: August 21, 2025
In October, Porvoo, Finland, experiences a compelling shift in weather, characterized by a maximum temperature of 17°C (64°F) and a notable average of 7°C (44°F). As the month progresses, temperatures can dip to a chilly minimum of -5°C (23°F), signaling the advent of winter. With 80 mm (3.2 in) of precipitation spread across 15 days, the atmosphere is often laden with moisture and a high humidity level of 94%, creating a distinctively crisp but sometimes damp environment. This climate invites both locals and visitors to embrace the beauty of autumn in this charming Finnish town.
As October settles into Porvoo, Finland, the transition towards colder days becomes evident. This month typically sees temperatures ranging from a chilly -5°C (23°F) at night to a mild 17°C (64°F) during the day, with an average of 7°C (44°F). Compared to the warmer late summer months, October's temperatures mark a significant drop, signaling the onset of autumn's embrace. While the maximum temperature could still reach a comfortable 17°C, the crisp air is a reminder of the winter chill approaching, making it an ideal time for cozy sweaters and warm drinks as the landscape begins to shift into vibrant fall hues. As Porvoo prepares for the colder months ahead, the beauty of autumn in this historical town is sure to captivate visitors and locals alike.
October marks a notable transition in Porvoo, Finland, as it registers the highest precipitation of the year at 80 mm (3.2 in), accompanied by 15 rainy days. This uptick in rainfall sets the stage for the onset of winter, pulling away from the relatively drier early months. As the leaves change and the days grow shorter, the increase in both precipitation amount and frequency reflects the shift to a wetter, more atmospheric season. The contrast with September's 63 mm (2.5 in) and 12 rainy days emphasizes October's role as a pivotal month, where the landscape transforms under a soothing blanket of autumn rain.
In October, humidity levels in Porvoo, Finland settle at a comfortable 94%, continuing the trend of relatively high moisture during the autumn months. As the year progresses, there's a noticeable decline from the peak winter humidity of 98% in January, tapering down to about 75% in May, when spring begins to take hold. The onset of summer sees a slight drop to 74% in June, with July and August bringing a modest rebound as the air retains more moisture. However, September marks a transition back to higher humidity, setting the stage for October's comparatively stable levels. This pattern reflects the region's characteristic climate, where humidity remains a significant feature through the fall months, creating a crisp yet damp atmosphere as winter approaches.
As October arrives in Porvoo, Finland, the UV Index falls to a low level of 2, with a burn time of 45 minutes for fair-skinned individuals. This is a noticeable drop from the summer months when UV levels peaked at 7 in both June and July, indicating a higher risk of harm from sun exposure. As autumn sets in, the days grow shorter and the sun's power diminishes, leading to more comfortable outdoor activities without the constant worry of sunburn. It's a perfect time to enjoy the vibrant fall colors while remaining mindful of UV protection. For more detailed information on UV levels year-round, check out Porvoo UV Index.
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As the crisp autumn air settles over Porvoo, October greets the city with approximately 193 hours of sunshine, a delightful contrast to the dimmer days that follow in November. This month marks a gentle decline from September's 289 hours, highlighting a trend of diminishing daylight as winter approaches. However, compared to the early months of the year, when sunlight barely graced the landscape—only 52 hours in January—October's brightness is a welcome reminder of the abundant light enjoyed earlier in the year. This gradual transition from long, sun-filled days in summer to the shorter, more subdued shines of fall encapsulates the beauty of seasonal change in this charming Finnish locale.
As autumn deepens in Porvoo, Finland, the likelihood of sunny weather in October stands at a modest 18%. This marks a notable decline from the sunnier days of summer, where July enjoys the highest sun chance at 57%. Unlike the lively brightness of early spring, which peaks in April with a 44% chance, October's overcast skies reflect the transition towards winter. As the days grow shorter and temperatures dip, the fleeting moments of sunshine become more treasured, emphasizing the beauty of Porvoo's autumnal landscapes amidst the increasingly frequent clouds.
As October unfolds in Porvoo, Finland, daylight lingers with approximately 10 hours each day, marking a notable shift from the bright, sun-drenched days of summer. After basking in nearly 18 hours of daylight during June and July, the city begins a gradual descent into the darker months, with the sun setting earlier and the days increasingly shortening. Following the vibrant hues of September, which still offered 12 hours of daylight, October serves as a gentle reminder of the impending winter, where daylight will dwindle further to just 7 hours in November. This transition illustrates nature's rhythm, as the long summer days gracefully give way to the cozy, reflective tone of autumn in Porvoo.
As October sweeps into Porvoo, Finland, it brings a refreshing breath of air, with an average wind speed of 4.5 m/s (10 mph), marking it as one of the windiest months of the year. This noticeable uptick in wind speed, compared to the previous months, signals a shift in the seasons, as the gentle breezes of summer give way to a brisk, invigorating chill. The winds in October not only enhance the beauty of Porvoo’s scenic landscapes adorned in autumn's vibrant hues but also invite residents and visitors alike to embrace the outdoors. As the leaves dance in the gusts, the October wind becomes a defining feature of the month, harmonizing with the onset of the crisp Finnish autumn.
Weather in Porvoo varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Porvoo, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present striking contrasts in weather conditions. In October, temperatures range from a minimum of -5°C (23°F) to a maximum of 17°C (64°F), making it a much milder month with an average of 7°C (44°F). The precipitation is relatively high at 80 mm (3.2 in), occurring over about 15 days, with a humidity level of 94%. In contrast, January experiences far colder temperatures, with an average of -3°C (27°F) and minimums plunging to -25°C (-13°F). Although January sees less precipitation at 54 mm (2.1 in) over about 11 days, the humidity is slightly higher at 98%. These differences highlight the transition from autumn’s cool, damp days to winter’s harsh, frigid conditions. For a more detailed look, check out Porvoo weather in January.
October and February present stark contrasts in weather conditions. In October, temperatures range from a low of -5°C (23°F) to an average of 7°C (44°F), peaking at a mild 17°C (64°F). The month experiences around 80 mm (3.2 in) of precipitation over approximately 15 days, coupled with a high humidity level of 94%. In contrast, February plunges into much colder territory, with temperatures dipping as low as -25°C (-13°F) and averaging -4°C (25°F), while reaching a maximum of 8°C (46°F). Precipitation in February is lighter at 48 mm (1.9 in), occurring over about 10 days, yet the humidity remains slightly higher at 96%. For more specific details on February weather, you can visit Porvoo weather in February.
When comparing the weather in October and March, there are notable differences in temperature and precipitation. October generally boasts milder conditions, with average temperatures ranging from a minimum of -5°C (23°F) to a maximum of 17°C (64°F), while March experiences colder averages, peaking at just 13°C (55°F) and dipping as low as -23°C (-10°F). In terms of precipitation, October sees more rainfall at 80 mm (3.2 in) over approximately 15 days, compared to the 49 mm (1.9 in) spread across 12 days in March. Both months have high humidity, but October's 94% slightly edges out March's 93%. For a closer look at specific conditions, check out the detailed information here: Porvoo weather in March.
When comparing the weather in October and April, October tends to be milder with average temperatures ranging from -5°C (23°F) to 17°C (64°F), while April experiences cooler overall conditions, with temperatures ranging from a minimum of -14°C (7°F) to a maximum of 21°C (70°F). Despite April having a higher maximum temperature, October's higher average temperature of 7°C (44°F) makes it feel more temperate overall. Precipitation is more frequent in October, accumulating about 80 mm (3.2 in) over 15 days, compared to April, which receives 48 mm (1.9 in) over 11 days. Additionally, October's humidity level is slightly higher at 94%, compared to April’s 87%, contributing to a more damp environment in the fall. For more detailed insights on April's weather, check out Porvoo weather in April.
In October, the weather is notably cooler with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 17°C (64°F), resulting in an average of just 7°C (44°F). The month is characterized by higher humidity at 94% and increased precipitation, receiving about 80 mm (3.2 in) over 15 days. In contrast, May offers milder temperatures, with a minimum of -4°C (26°F) and a much warmer maximum of 29°C (84°F), leading to an average temperature of 11°C (51°F). Additionally, May sees less rainfall at 50 mm (2.0 in) over 10 days and lower humidity at 75%. For a more detailed look at May's climate, check out Porvoo weather in May.
October and June present contrasting weather experiences. In October, temperatures can dip as low as -5°C (23°F), with an average of 7°C (44°F) and a maximum of 17°C (64°F). The month is also characterized by higher humidity at 94% and significant rainfall, accumulating to about 80 mm (3.2 in) over 15 days. In contrast, June enjoys milder conditions with minimum temperatures around 2°C (35°F) and averages soaring to 17°C (62°F), peaking at a warm 32°C (89°F). Precipitation is lighter in June, totaling 56 mm (2.2 in) over just 11 days, accompanied by a more comfortable humidity level of 74%. For more details, you can check Porvoo weather in June.
October and July showcase contrasting weather patterns, reflecting the transition from summer to autumn. In October, temperatures range from a chilly -5°C (23°F) to a maximum of 17°C (64°F), with an average of 7°C (44°F). This month also sees increased precipitation, totaling 80 mm (3.2 in) over 15 days, accompanied by high humidity at 94%. In stark contrast, July boasts milder conditions, with temperatures varying from 7°C (44°F) to a warm 32°C (89°F) and an average of 18°C (65°F). The rainfall in July is somewhat lighter at 71 mm (2.8 in) over 12 days, and the humidity is lower at 80%. For more detailed insights into the warmth and activities typical of the month, you can visit Porvoo weather in July.
October and August present contrasting weather patterns. In October, temperatures range from a chilly -5°C (23°F) at night to a mild 17°C (64°F) during the day, with an average temperature of 7°C (44°F). The month also experiences higher humidity levels at 94% and more frequent precipitation, with rain on about 15 days, totaling 80 mm (3.2 in).
In comparison, August enjoys much warmer conditions, with temperatures varying from a minimum of 6°C (43°F) to a maximum of 31°C (87°F) and an average of 16°C (62°F). The month sees slightly less rainfall, with 78 mm (3.1 in) over 12 days and a lower humidity level of 85%. For more details on weather specifics, you can check Porvoo weather in August.
In comparing the weather between October and September, October presents a decidedly cooler and wetter profile. While September enjoys a milder average temperature of 12°C (53°F) with a maximum of 24°C (75°F), October's average dips to 7°C (44°F) and peaks at a much cooler 17°C (64°F). Additionally, October experiences more precipitation at 80 mm (3.2 in) over 15 days, compared to September's 63 mm (2.5 in) spread across 12 days. Humidity also rises in October to 94%, up from 90% in September, making the atmosphere feel even chillier. For a detailed look at September's climate, you can refer to Porvoo weather in September.
October and November present a notable transition in weather patterns. October generally features milder temperatures, with an average of 7°C (44°F) and highs reaching up to 17°C (64°F). This month experiences more precipitation, totaling around 80 mm (3.2 in) over 15 days, while maintaining high humidity levels at 94%. In contrast, November sees a drop in both temperatures and precipitation; the average temperature falls to 3°C (37°F), with maximums around 12°C (54°F) and minimums dipping to -8°C (18°F). This month also sees reduced rainfall, accumulating 56 mm (2.2 in) over 12 days, but humidity remains consistent at 94%. For more detailed information, you can refer to Porvoo weather in November.
October and December weather present distinct contrasts, particularly in temperature and overall conditions. In October, temperatures fluctuate between a chilly -5°C (23°F) at night and a mild average of 7°C (44°F) during the day, peaking at 17°C (64°F). However, this month experiences substantial precipitation, with 80 mm (3.2 in) falling over 15 days, alongside high humidity at 94%.
In contrast, December plunges into winter, with temperatures dropping significantly, ranging from a minimum of -20°C (-3°F) to a daytime average of -1°C (30°F) and a maximum of 7°C (44°F). Precipitation is somewhat lower at 73 mm (2.9 in) over 16 days, and humidity remains slightly higher at 96%. For more detailed insights about December weather, check Porvoo weather in December.
As October rolls into Porvoo, the weather takes a notable turn, embracing the full depth of autumn. This month brings cooler temperatures, with maximums drifting down and average lows hinting at the onset of winter, creating a distinct shift from the mild warmth of September. In addition, October is marked by a higher degree of humidity and frequent rain, showcasing the beauty and unpredictability of fall in this charming Finnish town. With almost half the month seeing precipitation, the landscape becomes rich and vibrant, wrapped in an atmospheric embrace. For more insights into Porvoo's climate throughout the year, visit Porvoo Climate.