Last updated: February 26, 2025
In September, Spiekeroog, Germany, experiences a delightful transition from summer to autumn, characterized by maximum temperatures reaching 26°C (79°F) and a pleasantly mild average of 16°C (61°F). As the month progresses, minimums can dip to 10°C (51°F), creating a comfortable yet crisp atmosphere. Although the island sees precipitation totaling 85 mm (3.4 in) spread over approximately 12 days, this mainly contributes to the lush landscapes and vibrant flora. With an average humidity of 81%, visitors may encounter a refreshing coastal breeze, making it an inviting month for exploring the island's natural beauty.
As summer gracefully transitions into autumn, September in Spiekeroog boasts a delightful climate that reflects this seasonal shift. With minimum temperatures hovering around 10°C (51°F) and a mild average of 16°C (61°F), it's a comfortable time to explore the island's natural beauty. The days can still feel quite warm, reaching a maximum of 26°C (79°F), reminiscent of the lingering summer warmth. This month marks a significant increase from the early months of the year, paving the way for cooler days ahead, while still allowing locals and visitors alike to enjoy the gentle embrace of early fall. With the blend of warm days and refreshing evenings, September invites outdoor adventures, making it a perfect time to soak in Spiekeroog’s charm before winter settles in.
In September, Spiekeroog experiences a notable shift in its weather pattern, with 85 mm (3.4 in) of precipitation spread across 12 days. This marks a slight decrease from the preceding month of August, which saw the highest rainfall of the year at 101 mm (4.0 in) over 16 days. With the arrival of autumn, September's precipitation hints at the transition towards wetter months, yet it remains relatively moderate compared to October, which typically brings the year’s peak rainfall at 125 mm (4.9 in). This month’s weather serves as a reminder of the island's maritime climate, where gentle rain becomes more frequent, setting a serene backdrop for the changing seasons.
In September, Spiekeroog, Germany, experiences a notable transition in humidity, with levels averaging 81%. This marks an increase from the summer months, where humidity dipped to a comfortable 66%-67% in June through August. As the festive autumn air begins to settle in, the humidity levels start their gradual ascent towards the winter peaks, reflecting a natural rhythm in Spiekeroog's climate. The approaching cooler months see humidity levels rising again, with October and December expected to hover around 86% and 90%, respectively. This trend highlights the island’s dynamic seasonal shifts, where September serves as a bridge between the warm, dryer days of summer and the more humid, crisp air of fall.
As September rolls in, the UV Index in Spiekeroog, Germany settles at a moderate level of 5, signaling a gentle shift from the peak sun exposure of summer. With a burn time of 30 minutes, it's essential to remain mindful of sun protection. While this month's UV levels are lower compared to the highs of July and August, they still warrant caution, especially as autumn approaches. Historically, from May to August, UV Index figures consistently peaked at high levels, emphasizing the importance of sun safety during those sunny months. Looking ahead, the UV Index will gradually decline as we transition into cooler months like October, where it drops to 3. For a more detailed analysis of UV exposure throughout the year, visit Spiekeroog UV Index.
UV Risk Categories
As summer gracefully transitions into early autumn, September in Spiekeroog, Germany, offers a delightful blend of sunshine and serene coastal charm. After basking in peak daylight hours during the vibrant summer months, where July shines the brightest with an impressive 417 hours, September still gifts us with 315 hours of sun. This marks a noteworthy decline from August's 393 hours, yet it remains a generous offering for outdoor enthusiasts. The gradual decrease in sunshine hours is a signal of the changing seasons, enhancing September's cozy yet invigorating atmosphere. Visitors can relish pleasant days filled with exploration, as the island's natural beauty remains illuminated by the sun's warm golden rays, making it a captivating time to embrace Spiekeroog's tranquil allure.
In September, Spiekeroog, Germany, experiences a 33% chance of sunny weather, maintaining a consistent trend observed in the summer months. After a peak in April, where sunny days rise to 45%, the likelihood gently tapers off into late summer, mirroring the subdued sunshine of July and August. While September doesn't herald the onset of overcast conditions just yet, it signals a shift towards the milder autumn ambiance. Despite the decreasing probabilities as the year progresses, the chance of sunshine in September reflects a commendable position among the preceding months, hinting at pleasant days to enjoy before the harsher weather arrives.
As summer gradually fades into fall, September in Spiekeroog, Germany, offers a gentle transition with approximately 12 hours of daylight. This marks a noticeable decline from the sun-drenched days of July and August, which basked in an impressive 16 and 14 hours of sunlight, respectively. The month showcases the shifting seasons, as daylight diminishes further in October and November, dipping to 10 and 8 hours. The rhythm of the year is evident, with longer days giving way to the cozy embrace of shorter daylight hours, inviting residents and visitors to relish the last warm hues of the season before winter's grip sets in.
As summer fades into autumn, September on Spiekeroog welcomes a gentle shift in the breeze, with an average wind speed of 5.3 m/s (12 mph). This marks a noticeable drop from the more robust gusts of the preceding months, where June and July saw winds reach 4.5 m/s (10 mph) and 5.1 m/s (12 mph), respectively. After a peak towards the end of summer, August's winds at 6.3 m/s (14 mph) offer a comforting transition, embracing the island's serene charm. With the approach of October, wind speeds are anticipated to rise once again to 7.5 m/s (17 mph), heralding the season’s return to blustery conditions. This rhythm of fluctuating winds not only enriches Spiekeroog’s coastal landscape but also sets the stage for the magical beauty of autumn.
The weather in Spiekeroog 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 Spiekeroog and find detailed weather information for every month.
In September, the weather tends to be much milder, with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 26°C (79°F), alongside a total precipitation of 85 mm (3.4 in) over 12 days. The humidity is relatively high at 81%, contributing to a comfortable yet damp atmosphere. In contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -5°C (24°F) and peaking at 11°C (53°F). The precipitation is slightly lower at 80 mm (3.1 in) but occurs over a longer stretch of 15 days, and the humidity rises to 91%, resulting in a chillier, more penetrating dampness. For a detailed look at January conditions, check out Spiekeroog weather in January.
September and February showcase quite different weather patterns, reflecting the transition from summer to winter. In September, temperatures range from a comfortable 10°C (51°F) at night to a warm 26°C (79°F) during the day, with an average of 16°C (61°F). Although the month experiences 85 mm (3.4 in) of precipitation over about 12 days, humidity hovers around a moderate 81%. In contrast, February is much colder, with temperatures dipping to a chilly -5°C (22°F) at night and reaching a maximum of 12°C (54°F) during the day, averaging only 4°C (40°F). This month sees slightly less precipitation at 72 mm (2.8 in) over 13 days, along with higher humidity at 89%. For more details on February weather, you can visit Spiekeroog weather in February.
September and March present distinctly contrasting weather patterns. In September, temperatures typically range from a mild 10°C (51°F) to a warm 26°C (79°F), with an average of around 16°C (61°F). The month experiences about 85 mm (3.4 in) of precipitation over 12 days, accompanied by a relative humidity of 81%. In contrast, March is significantly colder, with temperatures ranging from a low of -7°C (20°F) to a high of only 13°C (56°F) and an average of 5°C (42°F). Though it has slightly less precipitation at 71 mm (2.8 in) over 13 days, the humidity is a touch higher at 87%. For more detailed information, refer to Spiekeroog weather in March.
When comparing the weather in September and April, it's clear that September tends to be significantly warmer. In September, temperatures range from a minimum of 10°C (51°F) to a maximum of 26°C (79°F), with an average of 16°C (61°F). In contrast, April experiences cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 17°C (63°F), leading to an average temperature of just 8°C (46°F).
In terms of precipitation, September sees more rain with 85 mm (3.4 in) across approximately 12 days, while April has only 45 mm (1.8 in) over about 10 days. Both months have high humidity levels, with September at 81% and April slightly lower at 82%. For more detailed information on April’s weather, you can visit Spiekeroog weather in April.
When comparing the weather in September and May, we see notable differences in both temperature and precipitation. September enjoys warmer temperatures, with averages around 16°C (61°F) and highs reaching up to 26°C (79°F), while May is cooler, with averages of 11°C (53°F) and maximums of 21°C (71°F). Additionally, September experiences higher humidity at 81% compared to May's 73%. Rainfall is also more common in September, accumulating to 85 mm (3.4 in) over 12 days, contrasted with May’s 55 mm (2.2 in) during the same number of days. To explore May weather more extensively, visit Spiekeroog weather in May.
When comparing the weather in September to that in June, it's notable that both months share strikingly similar average temperatures, sitting at around 16°C (61°F). However, September features a slightly wider temperature range, with minimums reaching 10°C (51°F) and maximums climbing to 26°C (79°F), compared to June's minimum of 9°C (49°F) and maximum of 25°C (77°F). September also tends to be wetter, with 85 mm (3.4 in) of precipitation occurring over 12 days, compared to June's 68 mm (2.7 in) over 11 days. Furthermore, humidity levels are higher in September at 81%, compared to June’s 66%, making the latter month feel drier overall. For a more detailed look at June's weather, you can check this link: Spiekeroog weather in June.
When comparing the weather in September and July, both months exhibit similar maximum temperatures, peaking at 26°C (79°F). However, September tends to be slightly cooler overall, with an average temperature of 16°C (61°F) compared to July's 17°C (63°F). Precipitation levels are comparable, with September receiving 85 mm (3.4 in) over 12 days versus July's 86 mm (3.4 in) over 13 days. Additionally, September experiences higher humidity at 81%, while July's humidity is lower at 66%. For a more detailed look at July weather, you can visit Spiekeroog weather in July.
In comparing the weather conditions of September to those of August, we see some notable differences. September experiences slightly cooler temperatures overall, with a minimum of 10°C (51°F) and an average of 16°C (61°F), compared to August's minimum of 12°C (54°F) and average of 18°C (65°F). Both months have the same maximum temperature of 26°C (79°F), but September tends to have more rainfall, with 85 mm (3.4 in) across 12 days, while August sees 101 mm (4.0 in) over 16 days. Furthermore, September's humidity is notably higher at 81%, contrasting with the 67% humidity typically present in August. For a more detailed look at August's weather, you can visit Spiekeroog weather in August.
In September, temperatures typically range from a minimum of 10°C (51°F) to a maximum of 26°C (79°F), with an average of 16°C (61°F). Precipitation is moderate at 85 mm (3.4 in) over about 12 days, and humidity hovers around 81%. In contrast, October brings cooler weather, with temperatures averaging 13°C (55°F), dipping as low as 5°C (41°F) and reaching a maximum of 21°C (70°F). Rainfall increases to 125 mm (4.9 in) over approximately 17 days, alongside a slight rise in humidity to 86%. For more detailed information about the weather in October, you can check out Spiekeroog weather in October.
September typically offers a mild climate with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 26°C (79°F), making it a warmer month with an average temperature of 16°C (61°F). The month experiences about 85 mm (3.4 in) of precipitation spread over 12 days, accompanied by a humidity level of 81%. In contrast, November sees a significant drop in temperatures, with a minimum of 1°C (34°F) and a maximum of 17°C (63°F), leading to a cooler average of 8°C (47°F). Although the total precipitation is slightly lower at 82 mm (3.2 in), it is spread over more days, totaling 17 days of rain, and the humidity rises to 90%. For a closer look at what to expect, check out Spiekeroog weather in November.
When comparing the weather in September and December, a stark contrast emerges. September enjoys milder temperatures, with averages around 16°C (61°F) and a maximum of 26°C (79°F), while December sees much colder conditions, with averages dropping to 6°C (43°F) and highs only reaching 11°C (52°F). Precipitation levels are also noteworthy; September experiences lighter rain, totaling 85 mm (3.4 in) over 12 days, compared to December’s 96 mm (3.8 in) spread over 17 days. Additionally, humidity levels rise slightly in December, averaging 90% compared to September’s 81%. For more details on December weather, visit Spiekeroog weather in December.
As summer gives way to autumn, September on Spiekeroog presents a delightful transition, blending warm days with a gentle coolness. With maximum temperatures that can still reach a pleasant 26°C, the island invites both relaxation and exploration. However, the lingering humidity at 81% combined with an average temperature of 16°C marks a noticeable shift from the sizzling summer months. Rain becomes more frequent with about 12 days of precipitation, accumulating to 85 mm throughout the month, urging visitors to embrace the coziness of indoor activities and the charm of seaside strolls under a shifting sky. For a deeper dive into Spiekeroog's weather patterns, explore the detailed insights at Spiekeroog Climate.