Last updated: August 21, 2025
September in Savonlinna, Finland brings a notable transition as summer gives way to autumn. Temperatures range from a comfortable maximum of 23°C (73°F) to a cool minimum of 0°C (32°F), with an average of 11°C (51°F) that sets a brisk tone for the month. Visitors should be prepared for frequent rainfall, totaling 74 mm (2.9 in) over approximately 13 rainy days, contributing to a humidity level of 90% that enhances the crisp, fresh air. Whether exploring the stunning lake views or wandering through charming streets, September offers a unique experience in this picturesque Finnish town.
September in Savonlinna, Finland marks a refreshing transition as summer gracefully yields to autumn. With temperatures ranging from a minimum of 0°C (32°F) to a maximum of 23°C (73°F), this month offers visitors a comfortable average of 11°C (51°F). The warm days linger, inviting outdoor exploration, while the cooler nights hint at the approaching chill of autumn. This delightful shift provides a perfect backdrop for enjoying the city's stunning lakes and rich historical sites, making September a captivating time to experience the natural beauty of Savonlinna as it begins to embrace the colorful hues of fall.
In September, Savonlinna experiences a notable shift in weather as the summer warmth begins to wane. With 74 mm (2.9 in) of precipitation spread over 13 days, the month underscores a transition from the wetter, more humid conditions of August, which received 88 mm (3.5 in). This slightly reduced rainfall coincides with the onset of autumn, setting a tone of crispness that characterizes the region. Comparatively, September's precipitation is on par with October's 73 mm (2.9 in), hinting at consistent autumnal rain patterns. As the days grow shorter and temperatures drop, this time of year is marked by the gentle embrace of moisture that enriches the landscape, preparing Savonlinna for the colder months ahead.
As September rolls in Savonlinna, Finland, the humidity levels reach 90%, marking a shift toward the wetter months. This increase from August's 84% reflects a trend of rising humidity as autumn approaches, following a summer characterized by milder conditions with lower averages of 75%-84%. The transition is evident as the humidity begins to climb again, reminiscent of the winter months when levels peak around 98% in January. Overall, September serves as a reminder of nature’s cyclic retreat into the cozy embrace of fall, setting the stage for the crisp air and vibrant colors that lie ahead.
As September rolls into Savonlinna, Finland, the UV Index settles at a moderate level of 3, indicating a gradual transition from the summer highs. With a burn time of 30 minutes, it's essential to take precautions during outdoor activities, although the risk remains manageable. This month marks a notable decrease from the peak values seen in July and June, where UV ratings reached as high as 6 and 7 respectively. Overall, September's UV Index reflects a comforting return to lower exposure categories that characterize the autumn months. For more detailed insights on UV levels throughout the year, check out Savonlinna UV Index.
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September in Savonlinna, Finland, welcomes a beautiful transition as the days gradually shorten, boasting 272 hours of sunlight—a remarkable glow that lingers from the summer months. As we trace the journey from a sun-kissed June with 490 hours, sunlight begins to recede, yet September retains a vibrant charm, outshining the winter months ahead. The drop from 394 hours in August signals the end of summer’s peak, but the milder days of early autumn still invite outdoor exploration and appreciation of the breathtaking Finnish landscapes. As the leaves begin to change and the air turns crisp, September serves as a gentle reminder of the fleeting nature of summer light, a perfect balance before the darker days of October settle in with only 182 hours on the horizon.
In Savonlinna, Finland, the likelihood of sunny weather experiences a notable ebb and flow throughout the year. As winter fades, February sees a modest 10% chance of sunshine, which steadily climbs to a pleasant 36% by March. The arrival of spring ushers in more sun, peaking at 55% in July, the sunniest month. However, as summer transitions into autumn, the chances of sunshine begin to dwindle, with September offering only a 23% likelihood. This downward trend continues into October, where the sun becomes even more elusive. Overall, while Savonlinna enjoys glimmers of sunshine in September, it’s clear that the warmest months are behind, ushering in a cooler, cloudier season.
As summer gives way to autumn in Savonlinna, Finland, September heralds a shift in daylight hours. With a generous 12 hours of daylight, this month offers a beautiful balance as the community transitions from the long, sun-soaked days of June and July, which basked in nearly 19 hours of light, to the shorter, more subdued days of October, bringing only 9 hours. After the vibrant, lively months of summer, September serves as a poignant reminder of nature's rhythms, allowing residents to savor the moderate daylight before winter's early evenings descend. The gradual decline in daylight is a gentle invitation to embrace the changing seasons, making it an ideal time for reflection and preparation.
As September unfolds in Savonlinna, Finland, the average wind speed hovers around 3.5 m/s (8 mph), which is consistent with the gentle breezes felt in late summer. Remarkably, this marks a slight uptick from August's 3.8 m/s, signaling a subtle shift towards cooler weather as autumn approaches. Throughout the earlier months of the year, wind speeds varied, with a noticeable rise in force during October, reaching 4.5 m/s (10 mph). The transitions from summer's calmness to the briskness of fall illustrate a rhythmic pattern, culminating in a refreshing gust that invites locals and visitors alike to embrace the changing seasons. As the days grow shorter and the air crisper, these winds carry hints of forthcoming autumnal beauty, making September a delightful time to experience Savonlinna's enchanting surroundings.
Weather in Savonlinna varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Savonlinna, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures in Savonlinna range from a minimum of 0°C (32°F) to a maximum of 23°C (73°F), with an average of 11°C (51°F). The month typically sees 74 mm (2.9 in) of precipitation over about 13 days and maintains a relatively high humidity level of 90%. In contrast, January experiences much colder temperatures, with lows plummeting to -27°C (-16°F), and an average temperature of -5°C (23°F), peaking at just 6°C (43°F). Although precipitation is lower at 46 mm (1.8 in) over 12 days, the humidity is slightly higher at 98%. For a detailed look at the January climate, visit Savonlinna weather in January.
When comparing the weather in September and February, there is a stark contrast in temperature and overall conditions. In September, temperatures range from a chilly 0°C (32°F) at night to a mild maximum of 23°C (73°F) during the day, accompanied by an average temperature of 11°C (51°F). The month experiences about 74 mm (2.9 in) of precipitation over 13 days, with humidity levels around 90%.
In contrast, February is significantly colder, with temperatures plummeting from a minimum of -26°C (-15°F) to a maximum of just 5°C (41°F), averaging -6°C (21°F). Precipitation in February is lower at 47 mm (1.8 in) over 11 days, but the humidity is slightly higher at 96%. For more detailed insights on February weather, you can check Savonlinna weather in February.
September and March present stark contrasts in weather patterns. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 23°C (73°F), with an average of 11°C (51°F). The month sees a total precipitation of 74 mm (2.9 in) over 13 days, coupled with a humidity level of 90%. In contrast, March experiences much colder temperatures, with a minimum of -24°C (-10°F) and a maximum of just 9°C (49°F), averaging -3°C (27°F). March receives less precipitation, totaling 45 mm (1.8 in) across 12 days, but the humidity is slightly higher at 93%. For more details on March weather, you can visit Savonlinna weather in March.
When comparing the weather in September and April, we see distinct differences in temperature and precipitation. September enjoys milder temperatures, ranging from a chilly 0°C (32°F) at night to a comfortable 23°C (73°F) during the day, with an average of 11°C (51°F) and higher humidity levels at 90%. Conversely, April is colder, with minimum temperatures dropping to -11°C (12°F) and averaging just 2°C (36°F), while daytime highs can reach 19°C (66°F). Additionally, April experiences less precipitation at 43 mm (1.7 in) over 11 days compared to September's 74 mm (2.9 in) across 13 days. For more specific insights into April’s weather, check out Savonlinna weather in April.
In comparing the weather of September and May, we notice some distinct differences. September typically has a milder atmosphere with average temperatures ranging from a chilly 0°C (32°F) to a pleasant maximum of 23°C (73°F), while May often experiences a wider range, with lows of -4°C (25°F) and daytime highs reaching up to 27°C (80°F). Although September sees more rainfall, averaging 74 mm (2.9 in) over 13 days, May's precipitation is lower at 54 mm (2.1 in) across 10 days. Additionally, September's humidity levels are higher at 90%, compared to May’s more comfortable 77%. For more detailed weather insights, you can explore Savonlinna weather in May.
September and June present contrasting weather patterns. In September, temperatures range from a chilly minimum of 0°C (32°F) to a comfortable maximum of 23°C (73°F), with an average of 11°C (51°F). The month is marked by a higher level of humidity at 90% and considerable precipitation, totaling 74 mm (2.9 in) over 13 days. In contrast, June enjoys warmer temperatures, with minimums around 2°C (36°F) and maximums peaking at 31°C (89°F), averaging 16°C (61°F). Precipitation is slightly lower in June, with 60 mm (2.3 in) falling over 11 days and humidity at 75%. For a more detailed look at June’s weather, visit Savonlinna weather in June.
In comparison to July, September experiences cooler temperatures, with a minimum of 0°C (32°F) and an average of 11°C (51°F), contrasting with July's milder minimum of 8°C (46°F) and an average of 18°C (64°F). While both months receive similar precipitation levels, with July slightly edging out at 73 mm (2.9 in) compared to September's 74 mm (2.9 in), the humidity remains relatively high in September at 90%, compared to 82% in July. Thus, September's weather can feel more damp and chilly, while July typically offers warmer and more comfortable summer conditions. For more detailed insights on July weather, check Savonlinna weather in July.
In comparing the weather of September to that of August, a notable transition occurs as summer gives way to autumn. September exhibits cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 23°C (73°F), presenting an average of 11°C (51°F). In contrast, August is warmer overall, with minimum temperatures of 8°C (46°F) and a maximum of 28°C (83°F), leading to an average of 16°C (61°F). While both months experience significant precipitation, September with 74 mm (2.9 in) over 13 days is slightly drier than August's 88 mm (3.5 in) over 15 days. Additionally, September's humidity is higher at 90%, compared to August's 84%. For more specific details on August weather, you can visit Savonlinna weather in August.
In September, the weather is generally milder, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 23°C (73°F) and an average of 11°C (51°F). While the month experiences significant humidity at 90% and records about 74 mm (2.9 in) of precipitation across 13 days, the weather feels comparatively pleasant. In contrast, October brings a more pronounced chill, with temperatures dropping to a minimum of -5°C (23°F) and averaging 6°C (42°F), while the maximum reaches 17°C (63°F). Despite nearly identical precipitation (73 mm or 2.9 in) over the same number of days, the humidity increases slightly to 93%, adding to the crisp autumn atmosphere. For more detailed insights, you can check Savonlinna weather in October.
September and November showcase a striking contrast in weather patterns. In September, temperatures range from a chilly 0°C (32°F) at night to a pleasant 23°C (73°F) during the day, with an average of 11°C (51°F). The month sees 74 mm (2.9 in) of precipitation over 13 days, while humidity levels are relatively high at 90%. In contrast, November brings much colder conditions, with temperatures dipping to a minimum of -12°C (10°F) and only reaching a maximum of 10°C (50°F), averaging just 1°C (34°F). Although it has slightly less precipitation at 51 mm (2.0 in) over the same number of days, humidity rises to 93%, adding to the chilly atmosphere. For a detailed overview of the conditions, check out Savonlinna weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a chilly 0°C (32°F) at night to a pleasant high of 23°C (73°F) during the day, with an average of 11°C (51°F). The month receives about 74 mm (2.9 in) of precipitation over 13 days, accompanied by a humidity level of 90%. In contrast, December's weather is much colder, with temperatures plummeting to a minimum of -22°C (-7°F) and an average of -4°C (26°F), peaking at just 4°C (40°F). Precipitation remains similar at 70 mm (2.8 in), but it occurs over 15 days, and humidity rises to 95%. For a deeper dive into December's weather patterns, check out Savonlinna weather in December.
As September unfolds in Savonlinna, the transition from the balmy warmth of summer to the crispness of autumn becomes palpable. With maximum temperatures still reaching a pleasant 23°C (73°F), the days are wonderfully mild, but evenings can dip to a brisk 0°C (32°F), signaling the changing season. This month brings about an increase in precipitation, with about 13 days of rain, contributing to the overall humidity level of 90%. While other months may boast more consistent warmth or dryness, September is characterized by its beauty and unpredictability, making it an ideal time to witness the lush landscapes as they begin to transform. For a deeper understanding of seasonal patterns, explore the full details at Savonlinna Climate.