Last updated: February 26, 2025
September in Helgoland, Germany, showcases a mild yet variable climate, where average temperatures hover around 16°C (61°F), peaking at a pleasant 21°C (71°F). However, the month is also marked by the likelihood of rain, with 107 mm (4.2 in) falling over 13 days, contributing to a high humidity level of 84%. Visitors can expect a blend of sun and occasional showers, creating an inviting atmosphere for exploring the stunning coastal landscapes and the island's unique charm. Whether you are strolling along the shore or enjoying a cozy café, Helgoland offers a delightful September experience.
In September, Helgoland begins to transition into the cooler embrace of autumn, with temperatures providing a comfortable end to summer. The minimum temperature settles at 11°C (52°F), while the average rises to 16°C (61°F), peaking at a pleasant 21°C (71°F) during the day. This month marks a delightful balance, as the warmth of August lingers, yet there's a discernible shift towards brisker days ahead. With these mild temperatures, September invites visitors to explore the island's vibrant landscapes before the chill of winter sets in, making it a perfect time for outdoor activities and soaking in the natural beauty of the surroundings.
September marks a significant uptick in precipitation on Helgoland, Germany, with an average of 107 mm (4.2 inches) falling over 13 days. This shift heralds the transition from the summer's moderate rainfall to the wetter months ahead. Comparatively, it exceeds August's 91 mm (3.6 inches) and foreshadows October's even higher average of 139 mm (5.5 inches), indicating an escalating pattern of wet weather as autumn sets in. The increase in rainfall days reflects the island's move into a more turbulent climatic phase, with 19 anticipated rainy days in November, suggesting that residents and visitors can expect a distinctly soggy seasonal change. This trend highlights the dramatic moisture changes typical for coastal regions during this time of year, making September a pivotal month in Helgoland's annual weather cycle.
As autumn approaches, September in Helgoland, Germany, sees a slight rebound in humidity, settling at 84%. This marks an increase from the drier summer months of July and August, where humidity dipped to 76% and 77%, respectively. The trend suggests that the transition from summer to fall brings back a more humid atmosphere, reminiscent of the higher levels experienced during the winter months. Compared to the earlier part of the year, where humidity hovered consistently around 89% in January and 88% in February, September offers a refreshing balance, bridging the gap between the sultry summer and the brisk autumn air. As the landscape begins to change, the air thickens, providing a hint of the upcoming seasonal shifts.
As summer transitions into autumn, September in Helgoland, Germany, presents a moderate UV Index of 5, indicating a shift from the high levels experienced during the peak summer months. With a burn time of 30 minutes, sun seekers should still take precautions while enjoying the crisp, sunny days of early fall. This decrease from August's high UV Index reflects the gradual fading of summer's intensity, but it's a reminder to keep sun safety in mind as outdoor activities become more appealing. For more details on UV levels throughout the year, explore the Helgoland UV Index.
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September in Helgoland, Germany, shines brightly with 320 hours of sunshine, painting the landscape in golden hues before autumn settles in. As summer bids farewell, this month stands as a testament to the gradual decline in daylight hours, following a peak of 434 hours in July. While September's sunshine is less abundant than the summer months, it remains a significant improvement compared to the winter months, where daylight drops drastically to as low as 101 hours in January. The trend reveals a gradual transition from the sun-soaked days of summer to the cozy, overcast afternoons of winter, making September a delightful choice for those seeking a blend of warmth and tranquility amidst nature's changing palette.
In Helgoland, Germany, September presents a moderate 33% chance of sunny weather, marking a slight upturn compared to the summer months. This time of year signifies the transition from the balmy days of August, which saw a 38% likelihood of sunshine, to the more overcast conditions expected in October, where the chances dip to 28%. While the sunny prospects are less robust than the spring peak in April at 51%, September still offers a pleasant opportunity for outdoor activities. As the seasons shift, the sun retreats, but you can still catch glimpses of bright days interspersed among the cooler, cloudier stretches, making it a unique time for exploration on this charming island.
As summer fades into autumn, September in Helgoland, Germany, ushers in a transition marked by a gentle decline in daylight duration. With approximately 12 hours of daylight, September strikes a balance between the longer days of summer and the shorter days that loom ahead in October. This month follows a peak in daylight that reaches its zenith in June with nearly 17 hours, showcasing the region's vibrant and sun-drenched summer. As we move from the blazing days of May and June into the crispness of fall, the gradual reduction in sunlight serves as a poignant reminder of nature's cyclical rhythm, inviting locals and visitors alike to savor the remaining warmth and beauty before the days grow significantly shorter in late autumn.
As summer transitions to autumn, September in Helgoland experiences a gentle shift in wind patterns, with an average wind speed of 6.7 m/s (15 mph). This marks a noticeable drop from the summer months, where wind speeds hovered between 6.3 m/s (14 mph) and 7.6 m/s (17 mph). Following the gradual decline seen from June's light breezes at 5.5 m/s (12 mph), September’s winds start to pick up again as the island braces for the brisk conditions of October, which showcases a significant increase to 9.4 m/s (21 mph). Overall, September serves as a transitional month, blending the softer winds of summer with the more vigorous gusts that autumn brings, thus reflecting the island's ever-changing maritime climate.
The weather in Helgoland changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Helgoland and find detailed weather information for every month.
September and January offer dramatically different weather experiences. In September, temperatures are considerably milder, averaging around 16°C (61°F) and reaching a maximum of 21°C (71°F), while January’s chill sees averages drop to just 5°C (41°F) with highs of only 10°C (51°F). Despite being a transition to autumn, September has a higher humidity level of 84% and experiences about 107 mm (4.2 in) of rainfall over 13 days. In contrast, January, typically the coldest month, has slightly lower precipitation at 80 mm (3.2 in) but over a longer span of 15 days, coupled with a much higher humidity of 89%. For a closer look at the winter conditions, you can check Helgoland weather in January.
September and February exhibit strikingly different weather patterns. In September, temperatures range from a mild 11°C (52°F) at night to a pleasant peak of 21°C (71°F) during the day, with an average of 16°C (61°F). The month also experiences significant rainfall, totaling 107 mm (4.2 inches) over approximately 13 days, accompanied by a high humidity level of 84%. In contrast, February is much cooler, with temperatures dropping to a minimum of -4°C (26°F) and only reaching a maximum of 11°C (52°F), averaging around 4°C (40°F). Precipitation is less prevalent in February at 71 mm (2.8 inches) over 12 days, and humidity is slightly higher at 88%. For more detailed information, you can check Helgoland weather in February.
September presents a milder climate, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), while experiencing higher precipitation levels at 107 mm (4.2 in) over 13 days. In contrast, March is significantly colder, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 10°C (50°F) and a total precipitation of 65 mm (2.5 in) over 11 days. Additionally, March features slightly higher humidity at 87%, compared to September's 84%. For more detailed information about the weather conditions in March, you can check Helgoland weather in March.
Comparing the weather between September and April reveals notable differences. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), with an average of 16°C (61°F). The month sees around 107 mm (4.2 in) of precipitation across 13 days, maintaining a humidity level of 84%. In contrast, April experiences cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 14°C (58°F), averaging just 7°C (45°F). Additionally, April receives less rainfall, totaling 42 mm (1.7 in) over 8 days, while also maintaining the same humidity level of 84%. For more specific weather details, check out Helgoland weather in April.
Comparing the weather in September and May reveals some notable differences. September typically experiences milder temperatures, with an average of 16°C (61°F) and maximums reaching up to 21°C (71°F), while May sees cooler averages at 11°C (52°F) with a maximum of 20°C (69°F). However, September is also characterized by higher precipitation, totaling 107 mm (4.2 in) over 13 days, compared to May's 42 mm (1.7 in) over 8 days. Additionally, September has a slightly higher humidity level at 84%, while May's humidity is at 79%. To explore more about the weather in May, you can visit Helgoland weather in May.
In comparing the weather of September and June, we see some interesting similarities and contrasts. Both months experience a maximum temperature of 21°C (71°F), but September has a higher average temperature of 16°C (61°F) compared to June's 15°C (60°F). Additionally, September is generally wetter, with 107 mm (4.2 in) of precipitation over 13 days, while June sees only 56 mm (2.2 in) over 8 days. Furthermore, the humidity levels are higher in September at 84%, compared to 75% in June, creating a more humid atmosphere in the autumn months. For more details on the June weather specifically, you can visit Helgoland weather in June.
In comparing the weather of July and September, notable differences emerge in temperature, precipitation, and humidity. July tends to be warmer, with daily temperatures ranging from a minimum of 13°C (55°F) to a maximum of 24°C (76°F), whereas September is cooler, with temperatures ranging from 11°C (52°F) to 21°C (71°F). Precipitation is also more pronounced in September, accumulating to 107 mm (4.2 in) over 13 days, compared to July's 66 mm (2.6 in) over 12 days. Additionally, September's higher humidity at 84% creates a distinct, damp atmosphere, in contrast to July's more comfortable 76%. For more detailed insights on July weather, visit Helgoland weather in July.
Comparing the weather in September and August reveals a noticeable shift towards cooler and wetter conditions. In September, the temperatures range from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), with an average of 16°C (61°F). In contrast, August offers warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 24°C (76°F), averaging 18°C (65°F). Additionally, September experiences higher precipitation, with 107 mm (4.2 in) over 13 days, compared to August's 91 mm (3.6 in) across 14 days. This change is further emphasized by increased humidity levels in September at 84%, compared to 77% in August. For a more detailed look at August weather, you can check Helgoland weather in August.
September and October present noticeable differences in weather patterns. While September typically sees mild temperatures ranging from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), October experiences a cooler range, with a minimum of 6°C (43°F) and a maximum of 19°C (66°F). Moreover, October records higher precipitation levels, totaling 139 mm (5.5 in) over 18 days, compared to September's 107 mm (4.2 in) across 13 days. Humidity also increases slightly from 84% in September to 87% in October, contributing to a more damp and chillier atmosphere. For more detailed insights on October weather, you can visit Helgoland weather in October.
September's weather is generally milder, with temperatures ranging from a minimum of 11°C to a maximum of 21°C, creating a comfortable average of 16°C. In contrast, November brings noticeably cooler temperatures, with averages dropping to 9°C and maximal temperatures only reaching 16°C. Precipitation is quite similar in both months, with September receiving 107 mm over 13 days and November slightly less at 100 mm but over a longer duration of 19 days, indicating more frequent rainy days. Additionally, humidity rises from 84% in September to 88% in November, contributing to a colder and damp feel as the seasons transition. For more details, check out Helgoland weather in November.
September and December offer starkly different weather experiences. In September, temperatures are milder, ranging from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), with an average of 16°C (61°F). The month sees considerable precipitation, totaling 107 mm (4.2 in) over about 13 days, and humidity levels are relatively high at 84%. In contrast, December brings much cooler conditions, with temperatures dropping to a minimum of -1°C (30°F) and peaking at just 11°C (52°F), averaging 7°C (44°F). The month has a similar total precipitation of 102 mm (4.0 in), but it falls over a greater number of days—20 in total—resulting in an even higher humidity level of 87%. For more details on December weather specifics, you can refer to Helgoland weather in December.
As summer gives way to autumn, September on Helgoland showcases a distinct shift in weather patterns. With average temperatures settling around a mild 16°C, this month offers a refreshing warmth that contrasts sharply with the cooler days ahead. However, expect more frequent rain, evidenced by the 107 mm of precipitation over the month, which contributes to the island's lush, verdant beauty. The humidity remains high at 84%, adding a slight chill to the sea breeze that envelops the island. This delightful interplay of warmth and moisture provides an enchanting backdrop for those seeking the unique charm of Helgoland during this transitional period. For a deeper dive into Helgoland's weather nuances, explore Helgoland Climate.