Last updated: March 17, 2025
In Siglufjoerdur, Iceland, September presents a captivating tapestry of weather characterized by a maximum temperature of 13°C (56°F) and an average of 7°C (46°F), while nighttime chills can drop to a brisk 1°C (35°F). This transitional month sees considerable precipitation, with 159 mm (6.3 in) falling over 19 days, resulting in a particularly humid environment, boasting a remarkable 91% humidity. Visitors can expect a blend of cool temperatures and wet conditions, making it an ideal time for those who appreciate the dramatic beauty of Iceland's landscapes draped in autumn colors.
In September, Siglufjöður, Iceland welcomes a crisp transition into autumn, with temperatures reflecting the changing season. The month begins with a minimum of 1°C (35°F), climbing to an average of 7°C (46°F), and peaking at a comfortable 13°C (56°F). This marks a gentle shift from the warmer summer months, where August's highs reached 17°C (63°F). As September unfolds, the days gradually cool down, setting the stage for the chillier temperatures that October brings. With these mild temperatures, September offers a perfect opportunity to enjoy the stunning landscapes of this charming Icelandic town before winter sets in.
September in Siglufjoerdur, Iceland, marks a significant uptick in precipitation, with 159 mm (6.3 in) accumulated over 19 days—the highest for any month so far. This substantial rainfall signals a departure from the relatively dry summer months, where precipitation dipped to as low as 59 mm (2.3 in) in May. As autumn sets in, the trend suggests increasing moisture, setting the stage for the wetter conditions that characterize the later months, notably October and November. With the landscape receiving a generous dose of rain, September not only revitalizes the surrounding nature but also prepares Siglufjoerdur for the coming winter months, highlighting its dynamic climate transition.
September in Siglufjörður, Iceland, continues the trend of high humidity that characterizes much of the year, holding steady at 91%. As summer transitions into autumn, the humidity remains consistently elevated, reflecting the region’s coastal climate. Over the months, from January's peak of 92% down to October's slight drop to 90%, it’s clear that humidity in Siglufjörður remains predominantly high. Overall, the gradual decline from summer's peak reflects a subtle shift, but September stands firm as a reminder of the rich, damp air that is synonymous with this beautiful fishing town.
September in Siglufjoerdur, Iceland, sees a moderate UV Index of 3, signaling a gentle reminder to enjoy the outdoors while taking precautions. As summer draws to a close, the UV levels begin to taper off from the previous months, where July peaked at a UV Index of 5. The burn time during this month is about 30 minutes, a slight reduction compared to the height of summer, making it important to use sunscreen and seek shade during peak hours. This shift in UV exposure reflects a broader trend throughout the year, where late spring and summer months experience higher indices, fostering a vibrant atmosphere for outdoor activities. For those venturing into the stunning landscapes of Siglufjoerdur, staying informed about the UV Index can ensure a safe and enjoyable experience. Discover more about the UV conditions at Siglufjoerdur UV Index.
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As summer gently gives way to autumn, September in Siglufjoerdur, Iceland showcases a significant shift in daylight, with 159 hours of sunshine illuminating the landscape. This month marks a notable decrease from the sun-drenched heights of summer, where July and August basked in nearly 283 to 270 hours of sunlight, respectively. However, compared to the dimming days ahead in October and November, which feature only 90 and 37 hours of sun, September stands as a beautiful transition point. Embracing the changing colors of the landscape, this month's sunlight creates a picturesque backdrop that invites exploration and appreciation of Iceland’s stunning natural beauty before winter's embrace sets in.
In September, the likelihood of sunny weather in Siglufjoerdur, Iceland, dips to 14%, marking one of the cloudiest months of the year. This trend is a continuation of a gradual decline in sunshine hours from the more vibrant summer months, where the peak chance of sun reaches 35% in May. As autumn approaches, sunshine is less frequent, emphasizing the shift from the bright days of summer to the colder, more overcast conditions of fall and winter. Thus, while early autumn can still bring lovely days, travelers should be prepared for the potential of gray skies and embrace the unique beauty that Iceland's weather offers.
As summer fades in Siglufjoerdur, Iceland, September ushers in a notable transition in daylight duration. After basking in nearly 24 hours of sunlight during June, the days gradually shorten, offering 13 hours of light in September. This reduction reflects the natural rhythm of the seasons, where the lingering warmth of summer gives way to the crispness of autumn. Following the peak of 19 hours in May and the gradual decline through August, September marks a pivotal moment where the days still hold a generous amount of sunlight, yet hint at the approaching darkness of winter with October's 9 hours looming just ahead. The shift invites a sense of reflection, as the vibrant landscapes begin their transformation, embodying the enchanting beauty of Icelandic fall.
As summer fades into autumn, September in Siglufjörður brings a refreshing shift in the wind. With an average speed of 7.7 m/s (17 mph), the winds pick up noticeably compared to the gentle breezes of July and August, which often hover around 4 to 5 m/s. This uptick mirrors the transition many experience across the seasons, as the landscape prepares for the chill of winter. The wind's strength continues to rise in October, reaching 9.3 m/s (21 mph), hinting at a more dynamic climate ahead. In contrast to the milder spring months, this September wind serves as a reminder of nature's ever-changing rhythm, creating a vibrant atmosphere for locals and visitors alike.
The weather in Siglufjoerdur 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 Siglufjoerdur and find detailed weather information for every month.
September and January present distinctly different weather experiences. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 13°C (56°F), while January sees colder conditions with temperatures dropping to a minimum of -8°C (18°F) and peaking at 9°C (48°F). September is characterized by higher average temperatures of 7°C (46°F), compared to January’s chilly average of 1°C (34°F). Additionally, September receives more precipitation at 159 mm (6.3 in) over 19 days, while January has slightly less at 118 mm (4.6 in), also over 19 days. Both months feature high humidity levels, with September at 91% and January slightly higher at 92%. For more information on January weather specifics, you can check out Siglufjoerdur weather in January.
September and February present distinct weather contrasts. In September, temperatures range from a mild 1°C (35°F) to a maximum of 13°C (56°F), with an average of 7°C (46°F). The month is relatively wet, experiencing 159 mm (6.3 in) of precipitation over 19 days, coupled with a high humidity of 91%. In contrast, February typically feels colder, with temperatures spanning from -5°C (23°F) to a maximum of 9°C (48°F), averaging around 1°C (34°F). It sees less precipitation at 104 mm (4.1 in) across 17 days, although humidity remains high at 93%. For a closer look at the February weather specific to Siglufjoerdur, visit Siglufjoerdur weather in February.
When comparing the weather in September and March, notable differences emerge in temperature and precipitation. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 13°C (56°F), with an average of 7°C (46°F). This month experiences 159 mm (6.3 in) of precipitation over 19 days, accompanied by high humidity at 91%. In contrast, March is colder, with temperatures dipping as low as -8°C (19°F) and averaging just 1°C (34°F), peaking at 8°C (46°F). While March has less rainfall, with 101 mm (4.0 in) over the same 19 days, it is slightly more humid at 94%. For a closer look at conditions in this month, you can check Siglufjoerdur weather in March.
In comparing the weather of September and April, we see distinct seasonal differences. September boasts a milder climate with average temperatures ranging from 1°C to 13°C (35°F to 56°F), while April’s temperatures are colder, averaging between -8°C and 8°C (18°F to 47°F). Additionally, September experiences significantly more precipitation at 159 mm (6.3 in) over 19 days compared to April's 79 mm (3.1 in) across 14 days. Both months have high humidity, with September at 91% and April slightly higher at 92%. To explore more about the weather in April, you can visit Siglufjoerdur weather in April.
When comparing the weather in September and May, September generally features milder temperatures, with an average of 7°C (46°F) and a maximum of 13°C (56°F), whereas May is cooler, averaging 4°C (39°F) and peaking at 12°C (53°F). September experiences significantly higher precipitation, totaling 159 mm (6.3 in) over 19 days, in contrast to May’s 59 mm (2.3 in) across 13 days. Both months share the same high humidity level of 91%, creating a damp atmosphere. For more detailed insights into the weather, you can check Siglufjoerdur weather in May.
In comparing the weather of September and June, both months exhibit similar average temperatures, with September typically ranging from 1°C (35°F) to a maximum of 13°C (56°F) and June slightly higher, with temperatures from 2°C (36°F) to the same maximum. However, September experiences significantly more precipitation, with 159 mm (6.3 in) over 19 days, compared to June's 72 mm (2.8 in) across 15 days. Additionally, humidity levels remain high in both months, with September at 91% and June at 90%. For a more detailed look at June's weather, you can visit Siglufjoerdur weather in June.
In comparing the weather between September and July, we notice that both months have a similar humidity level of 91%, but September is generally cooler. While July sees minimum temperatures around 4°C (40°F) and an average of 9°C (48°F), September’s temperatures drop slightly, with a minimum of 1°C (35°F) and an average of 7°C (46°F). Additionally, September experiences significantly higher precipitation, with 159 mm (6.3 in) over 19 days compared to July's 88 mm (3.5 in) over 15 days. This means that September is not only cooler but also wetter than July, making the latter a milder option for outdoor activities. For more detailed weather information, visit Siglufjoerdur weather in July.
In September, the weather cools significantly compared to August, with minimum temperatures dropping to 1°C (35°F) and average highs only reaching 13°C (56°F), whereas August sees a milder minimum of 5°C (41°F) and an average maximum of 17°C (63°F). Additionally, September experiences much higher precipitation, totaling 159 mm (6.3 in) over 19 days, compared to August's 84 mm (3.3 in) over just 13 days. Despite the increased rainfall, both months maintain a consistent humidity level of 91%. For more details on August weather, you can check Siglufjoerdur weather in August.
In comparing the weather of September and October, we see a notable drop in temperatures as autumn progresses. September features a milder temperature range with a minimum of 1°C (35°F) and an average of 7°C (46°F), while October sees temperatures dipping further, with a minimum of -2°C (29°F) and an average of 5°C (41°F). Precipitation levels remain relatively close, with September receiving 159 mm (6.3 in) over 19 days and October experiencing 147 mm (5.8 in) across 20 days. Both months maintain high humidity levels, with September at 91% and October slightly lower at 90%. For more specific details on October weather, you can check the Siglufjoerdur weather in October.
September and November display contrasting weather patterns as the seasons transition from late summer into early winter. September typically has milder temperatures, ranging from a minimum of 1°C (35°F) to a maximum of 13°C (56°F), with an average of 7°C (46°F). It also experiences higher precipitation levels of 159 mm (6.3 in) over 19 days and maintains a high humidity of 91%. In contrast, November brings cooler temperatures, with lows reaching -3°C (28°F) and highs of 10°C (49°F), resulting in an average of 2°C (37°F). The month sees reduced precipitation at 116 mm (4.6 in) over 18 days and slightly lower humidity at 90%. For a more detailed look at November weather, you can visit Siglufjoerdur weather in November.
September and December present distinct weather patterns, showcasing the transition from early autumn to winter. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 13°C (56°F), with an average of 7°C (46°F) and considerable rainfall amounting to 159 mm (6.3 in) over 19 days, all accompanied by high humidity at 91%. Conversely, December experiences colder conditions, with temperatures dropping to a minimum of -5°C (24°F) and an average of just 1°C (35°F), while reaching a maximum of 10°C (50°F). Precipitation decreases slightly to 138 mm (5.4 in) over 20 days, with humidity remaining high at 90%. Overall, December is significantly colder than September, setting the stage for winter weather. For a detailed look at the conditions in December, you can check Siglufjoerdur weather in December.
As September unfolds in Siglufjörður, the weather takes on a distinct character, setting itself apart from the warmer summer months. With max temperatures dipping to a crisp 13°C and average temperatures settling around 7°C, the arrival of autumn is palpable. This month also witnesses an increase in precipitation, with nearly 20 days graced by rain, contributing to a humid atmosphere that hovers around 91%. The blend of cooler temperatures and frequent showers offers a refreshing change, inviting both locals and visitors to embrace the season's vibrant beauty. For more detailed information, explore the Siglufjoerdur Climate.