Last updated: August 27, 2025
In Sortavala, Russian Federation, September ushers in a dynamic shift in weather, showcasing a maximum temperature of 22°C (72°F) and an average of 11°C (52°F). As the month progresses, temperatures can dip to a brisk minimum of 1°C (34°F), reminding residents of the impending autumn. This transitional period is marked by 74 mm (2.9 in) of rainfall over 13 days, contributing to a notably high humidity level of 91%. Visitors and locals alike can expect a blend of mild warmth and refreshing, crisp air, painting a picturesque early autumn landscape.
As September unfolds in Sortavala, the temperatures begin to transition from the warmth of summer into the crispness of autumn. The month starts with a minimum of around 1°C (34°F), perfect for enjoying the early fall colors, while the average temperature hovers at a comfortable 11°C (52°F). As the days progress, one can expect pleasant afternoons with highs reaching up to 22°C (72°F), making this a delightful time for outdoor activities. Notably, this shift marks a considerable drop from the summer highs, yet September retains a mild charm that invites exploration. The gradual cool-down paves the way for October’s chill, showcasing the beautiful seasonal transition in this picturesque Russian locale.
September in Sortavala, Russian Federation, marks a notable transition in precipitation patterns as the summer's high moisture begins to wane. With 74 mm (2.9 in) of rainfall occurring over 13 days, the month maintains a robust contribution to the annual totals, yet it falls short of the peak seen in August. As temperatures cool, this pattern hints at the seasonal shift toward autumn, characterized by increased precipitation days compared to the drier months of early summer. Following September, October brings even heftier rain, indicating a trend where early autumn prepares for the wetter, chillier months ahead. Overall, September serves as a bridge in Sortavala's climate, balancing the tail end of summer's lushness with the impending embrace of fall.
In September, Sortavala experiences a notable shift in humidity, with levels sitting at 91%. This marks a slight increase from the summer months, where humidity dipped to a comfortable 76% in June, before climbing back to 86% in August. As autumn sets in, the trend of rising humidity continues, reflecting the transition from warmer to cooler months. This gradual increase is consistent with the overall pattern in Sortavala, where the year begins with high humidity, peaking in the depths of winter at 98% in January. However, September's humidity showcases the region's unique climatic nuances, as it balances between the lingering warmth of summer and the approaching chill of fall.
In September, Sortavala experiences a moderate UV Index of 3, indicating that sun exposure carries some risk and a burn time of approximately 30 minutes is advised. This marks a noticeable decline from the high levels observed during the summer months of June and July, where the UV Index reached 6. As autumn sets in, sun protection remains essential, particularly during midday hours. This trend highlights the transition from the sun-soaked days of summer to the gentle rays of early fall, making September a month where residents and visitors alike should be mindful of UV levels. For more information on UV exposure throughout the year, check out Sortavala UV Index.
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As summer fades and autumn approaches, September in Sortavala offers a delightful transition with 288 hours of sunshine, showcasing its vibrant seasonal shift. Following the summer peak in June with its impressive 502 hours, the sunlight begins to gently wane, yet remains inviting enough to retain the warm essence of summer. The sunshine hours steadily decrease from the height of 441 hours in May to September’s more moderate total, signaling the arrival of cooler days ahead. This trend highlights the gradual but noticeable transition into fall, leading into October’s more subdued 182 hours, marking a time of reflection as nature prepares for the winter months.
In Sortavala, the likelihood of sunny weather experiences a notable shift as the year progresses. After enjoying the peak of sunny days in July at 56%, the chances begin to decline through the late summer and into autumn. By September, the probability of sunshine drops to 23%, reflecting the transition to cooler months. This declining trend continues into October, with only an 18% chance, before plummeting further in the winter months. Overall, while September offers a modest chance of sunny weather, it signals the beginning of a period where gray skies and lower weather conditions dominate.
As September rolls into Sortavala, the days start to noticeably shorten, offering around 12 hours of daylight compared to the long, sun-drenched days of summer. This transition marks a shift from the vibrant 19 hours of daylight in June, as the region moves towards autumn's embrace. The gradual decline in daylight hours through the months reveals nature's rhythm, with September serving as a bridge between the lush brightness of summer and the looming coolness of fall. Following the increased daylight in May and June, this month invites a reflective pause, heralding the cozy moments of October, when daylight dips to just 9 hours. The diminishing light serves as a reminder of the cyclical beauty of the seasons in this picturesque corner of the Russian Federation.
In September, Sortavala experiences a gentle average wind speed of 4.0 m/s (9 mph), maintaining a comfortable breeze as the seasons transition. This month marks a slight uptick from the calmer winds of summer, where July and June recorded their lowest speeds at 3.0 m/s and 3.1 m/s, respectively. As autumn approaches, the winds begin to pick up again, foreshadowing the brisk weather of October, which sees speeds rise to 5.2 m/s (12 mph). Overall, September’s winds encapsulate a thoughtful balance, bridging the lingering warmth of summer with the invigorating chill of autumn, creating a refreshing atmosphere for both locals and visitors alike.
Weather in Sortavala varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sortavala, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in September is relatively mild, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 22°C (72°F) and an average of 11°C (52°F). The month experiences about 74 mm (2.9 in) of precipitation over 13 days and has a high humidity level of 91%. In contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -25°C (-12°F) and peaking at only 6°C (44°F), averaging around -5°C (24°F). Despite having slightly less precipitation at 58 mm (2.3 in) over the same number of days, January's humidity is higher at 98%. These stark contrasts highlight the significant seasonal shifts experienced in Sortavala, making it essential to prepare appropriately for each month. For more details, you can check Sortavala weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), with an average of 11°C (52°F). The month experiences significant humidity at 91% and precipitation of 74 mm (2.9 in) over 13 days. In contrast, February features much colder temperatures, with lows plunging to -25°C (-13°F) and highs peaking at just 6°C (43°F), averaging -5°C (23°F). This month has slightly lower precipitation at 61 mm (2.4 in) spread across 14 days, accompanied by even higher humidity at 96%. For a more detailed look at February weather specifics, visit Sortavala weather in February.
The weather in September and March presents a stark contrast, showcasing the transition from summer to early spring. In September, temperatures range from a mild 1°C (34°F) at night to a comfortable maximum of 22°C (72°F) during the day, accompanied by relatively high humidity of 91%. The month experiences 74 mm (2.9 in) of precipitation over 13 days.
In contrast, March features much colder temperatures, with nighttime lows plunging to -22°C (-7°F) and daytime highs reaching just 11°C (52°F). This month sees slightly less precipitation at 55 mm (2.2 in) spread over 12 days, and it maintains a higher humidity level of 94%. For a detailed look at the specific conditions, visit Sortavala weather in March.
When comparing the weather in September and April, it's clear that September is generally milder with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), while April presents a colder climate, with temperatures dipping as low as -11°C (13°F) and peaking at 19°C (66°F). September also experiences higher average humidity at 91%, compared to April's 88%, and sees a greater amount of precipitation at 74 mm (2.9 in) over 13 days, versus April's 47 mm (1.8 in) over 10 days. For more detailed information, you can check out Sortavala weather in April.
When comparing the weather in September and May, one can observe notable differences in temperature and precipitation. September typically features a milder average temperature of 11°C (52°F), with highs reaching up to 22°C (72°F), while May has a cooler average of 8°C (47°F), with maximum temperatures climbing to 27°C (81°F). In terms of precipitation, September experiences more rain, with 74 mm (2.9 in) over approximately 13 days, compared to May's 49 mm (1.9 in) spread over about 10 days. Additionally, the humidity in September is higher at 91%, compared to May’s 78%. These contrasts highlight the transition from the warmer, drier spells of late spring to the cooler, wetter conditions of early autumn. For a more detailed look at May weather specifically, you can visit Sortavala weather in May.
In comparing the weather between September and June, notable differences emerge. September experiences cooler temperatures with a minimum of 1°C (34°F) and a maximum of 22°C (72°F), while June enjoys milder conditions with minimums around 3°C (37°F) and a maximum of 28°C (83°F). Additionally, September sees higher precipitation, totaling 74 mm (2.9 in) over 13 days, compared to June's 44 mm (1.7 in) across just 9 days. Humidity levels also differ significantly, with September registering a high of 91%, while June's humidity is notably lower at 76%. For a more detailed look at June weather, visit Sortavala weather in June.
When comparing the weather in September and July, it's clear that July tends to be warmer and sunnier. In July, temperatures range from a minimum of 7°C (45°F) to a maximum of 31°C (88°F), with an average of 17°C (64°F). In contrast, September experiences cooler temperatures, ranging from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), and an average of 11°C (52°F). Both months see similar precipitation levels, with July receiving 76 mm (3.0 in) over 11 days and September 74 mm (2.9 in) over 13 days, but July boasts lower humidity at 83% compared to September's high of 91%. For more detailed insights on July's weather, you can refer to Sortavala weather in July.
In comparing the weather between September and August, September experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 11°C (52°F), while August sees milder conditions, with temperatures ranging from a minimum of 7°C (46°F) to an average of 16°C (61°F). The maximum temperatures also reflect this shift, as August reaches up to 29°C (84°F), compared to September's peak of 22°C (72°F). Precipitation is slightly higher in August, totaling 99 mm (3.9 in) over 15 days, compared to September's 74 mm (2.9 in) over 13 days. Humidity levels are also notable, with September being slightly more humid at 91%, compared to August's 86%. For more detailed insights, you can visit Sortavala weather in August.
September experiences milder temperatures, with average highs around 22°C (72°F) and lows not dropping below 1°C (34°F). In contrast, October ushers in cooler weather, with average highs of 18°C (64°F) and lows plummeting to -5°C (24°F). Precipitation slightly increases in October to 85 mm (3.3 in), occurring on 14 days compared to September's 74 mm (2.9 in) over 13 days. Humidity also rises marginally, from 91% in September to 93% in October, contributing to a noticeably chillier and wetter atmosphere. For a more detailed look at October weather, visit Sortavala weather in October.
September and November showcase a notable shift in weather conditions. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), with an average of 11°C (52°F). The month experiences higher temperatures, along with a significant amount of rainfall of 74 mm (2.9 in) spread over 13 days and a humidity level of 91%. In contrast, November sees a drop in average temperatures to a mere 2°C (36°F), with maximums only reaching 11°C (52°F) and minimums dipping as low as -10°C (14°F). Though precipitation decreases slightly to 61 mm (2.4 in) over the same number of days, humidity rises to 93%. This illustrates a transition from the mild, damp weather of early autumn to the colder, more winter-like conditions characteristic of late fall. For more detailed information, you can visit Sortavala weather in November.
In September, the weather is generally mild with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), averaging around 11°C (52°F). It experiences around 74 mm (2.9 in) of precipitation over approximately 13 days, with a humidity level of 91%. In contrast, December brings much colder conditions, as temperatures drop significantly, ranging from a minimum of -22°C (-7°F) to a maximum of 5°C (42°F), with an average of -2°C (28°F). Precipitation increases to 94 mm (3.7 in) over about 20 days, accompanied by a humidity level that rises slightly to 95%. For more detailed information about December weather, you can visit Sortavala weather in December.
As September unfolds in Sortavala, the weather presents a significant transition, marking the shift from the warmth of summer to the coolness of autumn. With lingering warmth during the day, temperatures gradually decline, leading to cooler nights that can surprise visitors. This month is characterized by heightened humidity and frequent rainfall, contributing to the picturesque, misty landscapes that define this time of year. As precipitation becomes more common, with nearly half the month seeing some rain, it’s essential to embrace the unpredictability of Sortavala's September weather. For a deeper look into the overall climate of this beautiful region, explore Sortavala Climate.