Last updated: August 21, 2025
In September, Pargas, Finland, experiences a delightful transition from summer to autumn. Daily maximum temperatures reach a comfortable 22°C (72°F) while averaging around 13°C (55°F), giving a taste of lingering warmth. As the month progresses, nighttime lows can dip to 1°C (35°F), reminding residents of the approaching chill. Frequent rainfall, totaling 65 mm (2.6 in) over 11 days, adds to the lushness of the landscape, while the high humidity levels of 86% contribute to a refreshing atmosphere. This month is characterized by a beautiful interplay of vibrant fall colors and invigorating weather, making it a perfect time to enjoy the natural beauty of Pargas.
In September, Pargas, Finland, welcomes the transition from the warmth of summer to the crispness of autumn. With minimum temperatures hovering around 1°C (35°F) and average daily highs reaching a pleasant 22°C (72°F), the month offers a soothing blend of mildness perfect for outdoor activities. As the days grow shorter, the average temperature sits at a comfortable 13°C (55°F), allowing for a refreshing escape from the warmer months. While temperatures are on the decline compared to the peak of summer, the early fall still presents a gorgeous landscape, making it a delightful time to experience the local flora and indulge in seasonal activities before the chill sets in for good.
September in Pargas, Finland, brings a notable shift as the summer warmth begins to fade, with precipitation totaling 65 mm (2.6 in) over 11 days. This increase in rainfall follows August's peak and sets the stage for the wetter autumn months ahead. While the overall precipitation amount is significant, it's interesting to see a drop from August’s impressive 79 mm (3.1 in) despite having two more rainy days. As the transition into fall continues, it’s clear that September marks a turning point—laying the groundwork for the seasonal changes that define Pargas' climate. With October looming, a further uptick in rainfall is anticipated, emphasizing the region's shift toward the more pronounced wet season that characterizes the later months of the year.
As summer fades into autumn, September in Pargas, Finland, experiences a notable shift in humidity levels. After months of relatively stable but low humidity—hovering around 77% to 79% from May to August—September witnesses a rise to 86%, signaling the onset of the wetter fall season. This increase reflects a broader trend of escalating humidity that often accompanies shorter days and cooler temperatures, setting the stage for the approaching autumn months. With October and November expected to bring even higher humidity levels at 90% and 91% respectively, September serves as a bridge, hinting at the lush, damp conditions characteristic of the Finnish fall.
In September, Pargas, Finland experiences a moderate UV Index of 4, indicating a slight increase in sun exposure as summer transitions into autumn. With a burn time of 30 minutes, residents and visitors alike should take care to protect their skin during outdoor activities, especially during peak sunlight hours. This month marks a gradual decline from the high levels seen in the heart of summer, emphasizing the need for continued sun safety even as temperatures begin to cool. As the days shorten, it's essential to stay informed and prepared—check out more details about the local UV Index at Pargas UV Index.
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September in Pargas, Finland, offers a delightful transition into autumn, with 313 hours of sunshine lighting up the landscape. As the summer months wane, the sun still graces the area generously, following a peak in June with 495 hours and a slight decline through July and August. This month reflects a significant drop compared to May’s 458 hours and June’s zenith, yet it stands as a vibrant farewell to the warmth of summer. As the sunshine hours dwindle into October, which averages only 209 hours, September serves as a perfect bridge, allowing residents to savor the remnants of summer while welcoming the cool embrace of fall. It's a time of changing colors under the soft, golden rays—an invitation to enjoy both the sun and the emerging beauty of autumn.
In Pargas, Finland, the likelihood of sunny weather in September presents a modest 32% chance. While this percentage is a slight dip from the summer months of June and July—when the sun graces the skies with over half its presence—it still holds its ground compared to the earlier late summer month's average of 34% in August. As autumn approaches, the transition from the vibrant sunshine of summer becomes more noticeable, reflected in the declining trend of sunny days. Although September offers fewer sunny moments than summer, it's important to remember that this period still resides above the gloomy statistics found in the colder months, where chances of sun tumble significantly. This makes September a charming, albeit less radiant, time to experience Pargas’ natural beauty.
As summer fades into autumn, September in Pargas, Finland sees a gentle decline in daylight duration, offering about 12 hours of light each day. This month marks a transition from the long, sun-drenched days of summer—where daylight peaks at 18 hours in June—to the shorter, cozier days of fall, gradually shifting towards the 10 hours of daylight in October. The clear trend of decreasing daylight continues as the year progresses, reminding residents of the changing seasons and inviting them to embrace the rich hues of early autumn while they still can.
As September rolls into Pargas, Finland, the average wind speed settles at a brisk 4.8 m/s (11 mph), mirroring the winds of August and suggesting a seamless transition into autumn. This consistency follows a summer marked by gentler breezes, as June recorded the lowest speeds of the year at 3.7 m/s (8 mph). The winds begin to pick up as the days shorten, paving the way for October when gusts rise significantly to 6.3 m/s (14 mph). Overall, the wind patterns reflect an invigorating shift towards cooler months, inviting the crisp embrace of autumn while hinting at the more robust winds to come.
Weather in Pargas varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Pargas, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present dramatically different weather conditions. In September, temperatures range from a chilly 1°C (35°F) to a pleasant high of 22°C (72°F), with an average of 13°C (55°F). This month experiences about 65 mm (2.6 in) of precipitation over 11 days, coupled with a humidity level of 86%. In contrast, January is much colder, with temperatures plummeting to a minimum of -19°C (-1°F) and an average of -1°C (30°F), reaching a maximum of 8°C (46°F). Although it has slightly less precipitation at 50 mm (2.0 in) over 10 days, the humidity rises to 92%, adding to the chill in the air. For more detailed information, you can check Pargas weather in January.
September and February present stark contrasts in weather conditions. September boasts milder temperatures, with averages around 13°C (55°F) and maximums reaching 22°C (72°F), while February experiences frigid conditions, averaging a chilling -3°C (28°F) and peaking at just 7°C (44°F). Precipitation is more abundant in September, totaling 65 mm (2.6 in) over 11 days, compared to February's slightly lower 42 mm (1.7 in) over 8 days. Additionally, humidity levels are slightly higher in February at 90%, compared to September's 86%. For those looking to know more about February weather specifics, check out Pargas weather in February.
In comparing September and March, it's clear that these months offer contrasting weather experiences. September boasts milder temperatures, with minimums around 1°C (35°F) and averages of 13°C (55°F), peaking at a comfortable 22°C (72°F). This month also sees higher precipitation at 65 mm (2.6 in) spread over 11 days, accompanied by relatively high humidity at 86%.
In contrast, March presents a much chillier climate, with temperatures dipping to a minimum of -20°C (-5°F) and averaging around 0°C (32°F), which is a significant drop. The maximum temperature reaches only 11°C (52°F). March experiences less precipitation, totaling 45 mm (1.8 in) over 10 days, but has slightly higher humidity at 89%. For more details, you can check Pargas weather in March. Overall, September is characterized by warmth and moisture, while March is marked by cold and a more subdued amount of precipitation.
In September, the weather is generally milder with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 22°C (72°F), providing a pleasant average of 13°C (55°F). The month experiences more precipitation, with about 65 mm (2.6 in) falling over 11 days, accompanied by high humidity levels around 86%. Conversely, April sees cooler temperatures, with a minimum of -12°C (12°F) and a maximum of 19°C (67°F), averaging at 4°C (40°F). Precipitation is lighter in April, totaling 30 mm (1.2 in) over 8 days, and the humidity is slightly lower at 85%. For a closer look at the specific weather conditions in April, you can visit Pargas weather in April.
September and May both present distinct weather contrasts. September typically experiences milder temperatures, with averages around 13°C (55°F) and a maximum reaching 22°C (72°F), while May is cooler with an average of 9°C (49°F) and peaks at 25°C (78°F). Additionally, September sees higher humidity levels at 86% compared to May’s 77%, contributing to a more oppressive feel in early autumn. Precipitation is also greater in September, with 65 mm (2.6 in) over 11 days, compared to May’s 41 mm (1.6 in) over just 7 days. For a closer look at the weather patterns specific to May, you can refer to this link: Pargas weather in May.
The weather in September tends to be cooler than in June, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 22°C (72°F) and an average of 13°C (55°F). In contrast, June offers milder conditions, with temperatures starting at a minimum of 4°C (40°F) and reaching up to 27°C (81°F), averaging 16°C (61°F). Additionally, September experiences more precipitation, totaling 65 mm (2.6 in) over 11 days, while June has only 37 mm (1.5 in) spread across 7 days. The humidity in September is higher at 86%, compared to June’s 78%. For a detailed look at June weather in Pargas, you can check out Pargas weather in June.
Comparing the weather in September and July reveals distinct seasonal contrasts. In July, temperatures are significantly warmer, with averages around 18°C (65°F) and peaks reaching up to 31°C (88°F), making it the warmest month. Conversely, September experiences a cooler climate, with average temperatures around 13°C (55°F) and highs of 22°C (72°F). Both months receive similar amounts of rainfall, with July seeing about 60 mm (2.4 in) over 9 days and September slightly wetter at 65 mm (2.6 in) across 11 days. Additionally, September exhibits higher humidity levels at 86%, compared to July’s 78%, making the late summer month feel a bit more intense despite its milder temperatures. For a detailed look at July's weather in this region, you can visit Pargas weather in July.
In comparing the weather of September and August, September experiences cooler temperatures, with a minimum of 1°C (35°F), an average of 13°C (55°F), and a maximum of 22°C (72°F), while August features milder conditions, ranging from a minimum of 7°C (46°F) to a maximum of 28°C (82°F). While both months see significant rainfall, September's precipitation totals 65 mm (2.6 in) over 11 days, making it slightly drier than August, which has 79 mm (3.1 in) over 14 days. Additionally, September has a higher humidity level at 86%, compared to August's 79%. For a detailed look at the climate in August, you can refer to Pargas weather in August.
Comparing the weather in September and October reveals a noticeable shift as autumn progresses. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 22°C (72°F), with an average of 13°C (55°F). The month receives about 65 mm (2.6 in) of precipitation over 11 days and has a humidity level of 86%. In contrast, October experiences cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 16°C (61°F), averaging only 8°C (47°F). Precipitation increases to 87 mm (3.4 in) over 16 days, and humidity rises slightly to 90%. This transition underscores the clear shift toward colder, wetter conditions as the season progresses. For more details, you can check out Pargas weather in October.
In September, the weather generally has warmer temperatures, with a minimum of 1°C (35°F) and an average of 13°C (55°F), peaking at 22°C (72°F). This month also sees around 65 mm (2.6 in) of precipitation over 11 days, accompanied by humidity levels of 86%. In contrast, November brings significantly cooler temperatures, starting from a minimum of -7°C (19°F) and averaging 5°C (41°F), with a maximum of 13°C (56°F). The precipitation remains quite similar at 63 mm (2.5 in) across 13 days, and humidity increases to 91%, creating a damp atmosphere. For more detailed insights, you can check Pargas weather in November.
September and December present starkly contrasting weather conditions. In September, temperatures range from a mild 1°C (35°F) at night to a pleasant 22°C (72°F) during the day, with an average of 13°C (55°F). The month sees about 65 mm (2.6 in) of rainfall over approximately 11 days, and humidity levels are relatively high at 86%. In contrast, December brings much colder temperatures, with a chilling minimum of -16°C (4°F) and a maximum of only 7°C (45°F), leading to an average of just 1°C (34°F). Rainfall increases slightly to 79 mm (3.1 in) over 16 days, and humidity remains high at 89%. For more details about the weather in December, you can visit Pargas weather in December.
As September unfolds in Pargas, the transition from summer to autumn becomes evident. While the mild temperatures provide a gentle farewell to summer, those cooler nights remind us that fall is approaching. The increased precipitation and higher humidity levels contrast sharply with the drier summer months, creating a refreshing atmosphere that invigorates both the landscape and its visitors. Although the vibrant colors of autumn are starting to emerge, September's unique blend of warmth and moisture contributes to a dynamic weather experience. To learn more about the overall climate in this beautiful region, visit Pargas Climate.