Last updated: August 27, 2025
In September, Hel, Poland experiences a delightful transition into autumn, showcasing a remarkable range of temperatures. Daytime highs can reach a warm 29°C (85°F), while the average settles around a comfortable 16°C (60°F), dipping to a cool 7°C (46°F) at night. Although the weather is generally pleasant, residents and visitors can expect scattered rainfall, accumulating to 77 mm (3.0 in) over approximately 12 days of the month. The 81% humidity level adds a touch of moisture to the air, contributing to the refreshing and crisp feel of early autumn. Overall, September in Hel offers a charming blend of warmth and refreshing breezes, perfect for outdoor exploration.
As September arrives in Hel, Poland, temperatures start to showcase the gentle transition from summer to autumn. With minimums around 7°C (46°F) and an average of 16°C (60°F), the early weeks retain a touch of warmth, making it pleasant for outdoor activities. Highs reaching up to 29°C (85°F) can still be enjoyed, particularly in the first half of the month. However, as the days shorten, the crispness of fall begins to set in, hinting at the cooler temperatures to come in October. This gradual shift creates a beautiful backdrop for exploration, as the vibrant foliage complements the mild climate, inviting residents and visitors alike to soak in the changing season.
In September, Hel, Poland, experiences a notable increase in precipitation, with a total of 77 mm (3.0 in) spread over 12 days. This marked rise follows the summer months, where rainfall peaks in July at 89 mm (3.5 in) and starts to taper off in August. Compared to the drier early months, such as April with only 34 mm (1.3 in), September reflects a transition into the more variable weather of autumn. As the region moves into October, the precipitation climbs even higher, reaching 82 mm (3.2 in), suggesting a trend of increasing wet days as the year progresses. Overall, September's rainfall sets the stage for the upcoming cooler months, balancing the warmth of summer with the lushness of fall.
As summer fades into autumn in Hel, Poland, September brings a noticeable shift in humidity, settling at 81%. This marks a subtle increase from the drier months of June through August, where humidity levels consistently hovered around 76%. The transition signals the return to higher moisture levels, reminiscent of the chillier months ahead—October and November, typically characterized by humidity rates climbing back to the more familiar 86% and 89%. Overall, September's humidity serves as a gentle reminder of seasonal change, bridging the warm, summer air with the crispness of fall.
As September rolls around in Hel, Poland, the UV Index sees a slight dip to 5, categorizing the exposure as moderate. This marks a transition from the high summer months of July and August, which experienced UV levels of 6 and 7 respectively. As a result, the recommended burn time increases to 30 minutes, allowing for safer outdoor activities. This month offers a wonderful balance, providing ample sunlight while also reminding residents and visitors to remain cautious during peak hours. For more detailed insights on UV levels throughout the year, check out Hel UV Index.
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September in Hel, Poland, offers a delightful transition into autumn with 308 hours of sunshine, a vibrant contrast to the preceding summer months. As the warm days of June and July—with 447 and 433 hours of sunlight—begin to wane, September still boasts a significant amount of sunlight, ensuring ample opportunities for outdoor adventures. While the sunshine hours decrease from the heights of summer, this month retains a charm of its own, blending the lingering warmth of summer with the crispness of fall. The gradual decline continues into October, which sees 240 hours, signaling nature's shift. Thus, September beckons visitors to enjoy the pleasantly mild conditions before winter's embrace, making it a picturesque time to explore the scenic beauty of Hel.
As summer fades and autumn begins, the likelihood of sunny weather in Hel, Poland sees a gentle decline. September boasts a 36% chance of sunshine, marking a transition from the vibrant warmth of summer. This figures sits below the peak of 62% typically enjoyed in June but closely follows the 43% likelihood of sunshine seen in July. Interestingly, while September offers more sun compared to the waning days of August at 31%, it signals the onset of shorter days and cooler temperatures. Overall, though sun-soaked days may be less frequent as the month progresses, the early weeks of September can still provide plenty of delightful weather for those looking to enjoy the serene coastal beauty of Hel.
As summer fades into autumn, September in Hel, Poland, offers a delightful transition in daylight hours, with the sun gracing the skies for approximately 12 hours each day. Following the bright 17 hours of daylight in June, the gradual decline becomes evident, as daylight slowly wanes. This month stands as a bridge between the long, sun-soaked summer days and the shorter, cozier autumn days ahead. With October bringing even shorter daylight at 10 hours, September allows residents and visitors to enjoy the last bursts of warmth and sunlight before the more subdued months of the year set in. Embrace the gentle shift in seasons while basking in the comforting light that September has to offer.
As summer gives way to autumn, September winds in Hel, Poland maintain a gentle yet invigorating pace, averaging 4.9 m/s (11 mph). This slight uptick from the quieter months of July and August signals a transition, with wind speeds beginning to rise again in anticipation of the blustery days ahead. The early fall breeze carries with it the crispness of changing leaves, while still retaining a touch of summer warmth. In the broader context of the annual wind patterns, September's winds hint at the approaching seasonal shift, setting the stage for October's more robust gusts that can reach up to 5.9 m/s (13 mph). Overall, September is a month of balance, where the remnants of summer mingle with the promise of autumn's more spirited winds.
Weather in Hel varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hel, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather. In September, temperatures range from a mild 7°C (46°F) at night to a warm 29°C (85°F) during the day, with an average temperature of 16°C (60°F). Despite receiving 77 mm (3.0 in) of precipitation over 12 days, the humidity is a comfortable 81%. In contrast, January is characterized by much colder conditions, with temperatures plunging as low as -12°C (11°F) and averaging only 2°C (35°F). Even the maximum temperature reaches just 10°C (51°F). Although January receives less precipitation at 52 mm (2.0 in), the humidity is slightly higher at 89%, contributing to a particularly frosty atmosphere. For more detailed weather conditions, check Hel weather in January.
September and February offer starkly contrasting weather conditions. In September, temperatures range from a mild 7°C (46°F) to a warm 29°C (85°F), with an average of 16°C (60°F) and relatively high humidity at 81%. Rainfall is notable, with about 77 mm (3.0 in) of precipitation spread over 12 days. In contrast, February experiences much colder temperatures, with lows plunging to -12°C (11°F) and a maximum of only 12°C (55°F), resulting in an average of just 1°C (35°F). Precipitation decreases to 42 mm (1.7 in) over 11 days, while humidity rises slightly to 89%. For more detailed weather insights, you can check Hel weather in February.
In September, temperatures range from a minimum of 7°C (46°F) to a maximum of 29°C (85°F), with an average of 16°C (60°F), creating a pleasantly warm atmosphere. The month's precipitation totals 77 mm (3.0 in) over 12 days, and humidity hovers around 81%. In contrast, March is much colder, with temperatures ranging from a frigid -12°C (12°F) to a mild 15°C (59°F) and an average of just 3°C (38°F). Although March sees lower precipitation at 47 mm (1.8 in) over the same number of days, humidity rises slightly to 88%. For a more detailed understanding of what to expect during March, you can refer to Hel weather in March.
When comparing the weather in September and April, there are notable differences in temperature and precipitation. September enjoys a warmer climate with average temperatures around 16°C (60°F) and highs reaching up to 29°C (85°F), while April's temperatures are significantly cooler, averaging only 7°C (45°F) with maximums of 20°C (69°F). Additionally, September sees more precipitation, with 77 mm (3.0 in) falling over 12 days compared to April's 34 mm (1.3 in) over just 8 days. Both months have similar humidity levels, with September at 81% and April slightly higher at 84%. For more details on April weather, you can check Hel weather in April.
September and May present distinct weather patterns that reflect the transition from summer to autumn in the region. In September, temperatures range from a cool 7°C (46°F) to a warm 29°C (85°F), with an average of 16°C (60°F), resulting in higher humidity levels of 81%. The month experiences more rainfall, accumulating 77 mm (3.0 in) over 12 days. In contrast, May offers a milder climate, with temperatures fluctuating between 1°C (34°F) and a comfortable 25°C (77°F), averaging 12°C (53°F). Precipitation in May is slightly less, totaling 58 mm (2.3 in) across the same number of rainy days, accompanied by a slightly lower humidity of 76%. For further details on the weather trends in this period, you can check Hel weather in May.
In comparing the weather between September and June, we observe that both months feature similar minimum temperatures, with September at 7°C (46°F) and June slightly cooler at 7°C (45°F). However, June typically boasts a higher average temperature of 18°C (64°F) compared to September's 16°C (60°F), and both months see similar maximum temperatures around 30°C (87°F) in June and 29°C (85°F) in September. Precipitation levels are relatively lower in June with 56 mm (2.2 in) over 9 days versus September's 77 mm (3.0 in) across 12 days. Additionally, humidity is slightly lower in June at 76% compared to September's 81%, contributing to a different feel for the two months. For a closer look at the weather specifics for June, you can check out Hel weather in June.
In comparing the weather of September and July, September experiences a cooler temperature range with minimums of 7°C (46°F) and maximums reaching 29°C (85°F), averaging around 16°C (60°F). In contrast, July typically has warmer temperatures, with minimums of 11°C (51°F) and maximums peaking at 32°C (89°F), averaging 19°C (66°F). Both months see similar precipitation levels, with September receiving 77 mm (3.0 in) over 12 days and July slightly higher at 89 mm (3.5 in) also over 12 days. Additionally, September is characterized by higher humidity at 81%, compared to July's 76%. For more details about July weather, you can check this link: Hel weather in July.
In comparing the weather of September and August, September shows a notable drop in minimum temperatures, averaging around 7°C (46°F) compared to August's milder 11°C (51°F). The average temperature in September is 16°C (60°F), while August is warmer at 19°C (67°F). Although the maximum temperatures are similar, with September reaching a max of 29°C (85°F) and August at 30°C (87°F), the overall feel of September tends to be cooler and more humid, with a humidity level of 81% compared to August's 76%. Additionally, September experiences slightly higher precipitation with 77 mm (3.0 in) over 12 days, contrasted with August's 67 mm (2.6 in) over 14 days. To gain more insights into August's weather patterns, you can visit Hel weather in August.
In September, the weather typically features a minimum temperature of 7°C (46°F), with an average high reaching up to 29°C (85°F), making it a warmer month overall. However, as September transitions into October, temperatures drop significantly, with October averaging a minimum of 3°C (39°F) and a maximum of 21°C (70°F). Additionally, October experiences slightly more precipitation, totaling 82 mm (3.2 in) over 15 days compared to September's 77 mm (3.0 in) over 12 days, and the humidity increases to 86%. For more detailed information, you can check out Hel weather in October.
September and November present a striking contrast in weather conditions. In September, temperatures range from a mild 7°C (46°F) at night to a warm 29°C (85°F) during the day, with an average of 16°C (60°F), making it a vibrant month that still feels like summer. However, it experiences higher precipitation at 77 mm (3.0 in) over 12 days, paired with a humidity level of 81%. In contrast, November brings a chill, with temperatures dropping significantly to a minimum of -3°C (27°F) and a maximum of 15°C (60°F), averaging only 7°C (45°F). This month sees less precipitation at 54 mm (2.1 in) over 13 days, although the humidity rises to 89%, resulting in a damp, cool atmosphere. For more detailed insights into November weather, check Hel weather in November.
In September, the weather tends to be much milder, with average temperatures ranging from a low of 7°C (46°F) to a warm high of 29°C (85°F). With 77 mm (3.0 in) of precipitation over about 12 days, the month experiences moderate rainfall, accompanied by a humidity level of 81%. In contrast, December brings a significant drop in temperatures, with an average range from a chilly -8°C (18°F) to a maximum of 10°C (51°F). Although precipitation decreases slightly to 63 mm (2.5 in) over approximately 15 days, the humidity rises to 89%, creating a damp and cold atmosphere. For more insights on the weather in December, check out Hel weather in December.
As September rolls in, Hel experiences a notable shift in its weather patterns, setting the stage for a true autumn ambiance. The days are still pleasantly warm, but a crispness in the air hints at the changing season. With rainfall increasing and humidity levels peaking, this month stands out for its refreshing unpredictability compared to the drier summer months. Combined with cooler evenings, September invites both locals and visitors to enjoy the stunning natural beauty of the area, making it a unique time to explore. To learn more about how the weather varies throughout the year in this coastal gem, check out Hel Climate.