September Weather in Patreksfjoerdur, Iceland

Last updated: March 17, 2025

September in Patreksfjörður, Iceland offers a brisk and atmospheric retreat, where temperatures range from a maximum of 13°C (55°F) to a minimum of 2°C (35°F), with an average hovering around 8°C (46°F). This month sees significant rain with 176 mm (6.9 in) of precipitation over approximately 20 days, contributing to the lush, green landscape that characterizes this coastal village. Humidity levels are high at 89%, enhancing the crispness in the air and creating a perfectly dramatic backdrop for outdoor adventures. Embrace the unique charm of early autumn as the scenery transforms under the overcast skies typical of September.

September Temperature in Patreksfjoerdur

As September rolls into Patreksfjörður, Iceland, temperatures begin to reflect the transition from summer to autumn. With minimums averaging around 2°C (35°F) and maximums reaching about 13°C (55°F), this month offers a refreshing chill compared to the warmth of August. The average temperature of 8°C (46°F) signifies the start of cooler days, hinting at the encroaching winter months ahead. Compared to earlier summer temperatures, where highs reached up to 17°C (62°F) in July, September brings a noticeable drop, characterized by crisp air and a beautiful interplay of autumnal colors in the landscape. As the days shorten and the temperature cools, it's a perfect time for visitors to experience the stunning scenery that Iceland is renowned for.

September Weather in Patreksfjoerdur: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Patreksfjoerdur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333333364045495046423734
Data source: Temperature data for Patreksfjoerdur generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Patreksfjoerdur

In September, Patreksfjörður experiences a notable surge in precipitation, with 176 mm (6.9 in) falling over the month, marking it as one of the wettest times of the year. Not only does this generous rainfall exceed that of the preceding months, but it also coincides with an increase in rainy days, totaling 20. This pattern highlights the transition into autumn, where shorter days and cooler temperatures enhance the frequency of showers. As summer's warmth fades, the landscape transforms under the relentless embrace of rain, making September a vivid month for nature's display but also a reminder of Iceland’s variable weather.

September Precipitation Trends in Patreksfjoerdur

The chart displays monthly precipitation patterns in Patreksfjoerdur, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec12312710511381849890176112106102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Patreksfjoerdur

In September, Patreksfjörður experiences a consistent humidity level of 89%, aligning closely with the highest figures of the winter months, January and February. This trend indicates that as summer fades, the air retains a significant amount of moisture, reminiscent of the damp chill that accompanies the changing seasons. Interestingly, September stands out with its stable humidity, following a typically humid August, but it reflects a gradual decline from June's slightly lower 85%. The overall pattern shows a humid climate throughout the year, with subtle fluctuations, reassuring visitors of the lush, vibrant landscapes that Iceland is known for, even as autumn begins to settle in.

September Average Humidity in Patreksfjoerdur

This chart illustrates the average monthly humidity levels in Patreksfjoerdur, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%90%86%87%85%88%89%89%88%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Patreksfjoerdur

In September, Patreksfjoerdur experiences a moderate UV Index of 3, indicating a cautious approach to sun exposure is advisable with a burn time of approximately 30 minutes for fair-skinned individuals. As the summer months transition to autumn, this marks a gradual decrease from the higher indices of 5 seen in July and August. Despite this reduction, it's essential to maintain sun protection habits established during the sunnier months, as UV radiation can still pose a risk. Overall, the trend reflects a shift towards lower UV levels as the year progresses, with October expected to drop further to an index of 2. For detailed insights and tips on managing sun exposure throughout the year, visit Patreksfjoerdur UV Index.

Maximum UV Index Levels in Patreksfjoerdur for September

The chart shows the monthly maximum UV Index (UVI) for Patreksfjoerdur in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec112355543211
Data source: Patreksfjoerdur September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Patreksfjoerdur

September in Patreksfjörður, Iceland, marks a gentle transition as summer begins to wane. With 157 hours of sunshine, this month's daylight still shines brightly, although it shows a clear decline compared to the peak of 321 hours enjoyed in May. The gradual decrease from the sun-drenched summer months is consistent, as daylight dwindles heading into autumn. Interestingly, this trend continues sharply into October, where only 104 hours are expected. As September unfolds, visitors can enjoy a beautiful blend of lingering warmth and the beginnings of fall, making it a charming time to experience the rugged landscapes bathed in soft, golden light.

Monthly Sunshine Duration in Patreksfjoerdur: September Highlighted

The September sunshine duration represents the total number of hours Patreksfjoerdur experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec20h64h166h215h321h277h270h245h157h104h46h17h
Data source: Patreksfjoerdur September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Patreksfjoerdur During September

In Patreksfjörður, Iceland, September offers a modest 15% chance of sunny weather, placing it on par with the drizzly summer months of July and August. As the summer fades, the likelihood of sunshine decreases significantly from the peak 47% in May, reflecting a general trend toward cooler, cloudier days as autumn approaches. However, September also marks a transition compared to the darker winter months when the chances of sun range between 17% to 28%. Despite its slight dip in optimism for sunny skies, this coastal town still entices with the dramatic beauty of its landscapes, making even the cloudier days worth savoring.

Percentage of Sunny Days in September in Patreksfjoerdur

The chart illustrates the percentage of sunny days in Patreksfjoerdur throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Patreksfjoerdur experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%17%15%29%47%25%13%14%15%25%20%25%
Data source: Patreksfjoerdur September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Patreksfjoerdur in September

September marks a transitional period in Patreksfjörður, Iceland, as daylight begins to wane from the exuberant brightness of summer. The town enjoys 12 hours of daylight this month, a significant reduction from the long 20 hours of July. This gradual shift is a part of the natural rhythm of the seasons, where the longer days of June and July give way to the more moderate lengths of autumn. As the days shorten, the landscape transforms, showcasing the vibrant hues of fall while inviting a sense of coziness as longer nights approach. This trend of diminishing daylight will continue into October, signaling the advent of winter's embrace.

Average Daylight Hours in Patreksfjoerdur for September

The chart illustrates the variation in daylight duration in Patreksfjoerdur throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec4h 51m8h 18m11h 49m15h 24m19h 10m22h 25m20h 23m16h 33m12h 59m9h 28m5h 55m3h 24m
Data source: Patreksfjoerdur daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Patreksfjoerdur

In September, Patreksfjörður experiences a notable uptick in wind speed, averaging 8.2 m/s (18 mph), which contrasts sharply with the calming breezes of summer. As the lush landscapes begin to shift towards autumn, this surge in wind anticipates the more blustery months ahead. Following the lowest point in August at 4.4 m/s (10 mph), September serves as a transition, setting the stage for the increase that follows in October, when winds reach 8.8 m/s (20 mph). This dynamic not only invigorates the scenery but also hints at the seasonal changes influencing the region, making September a pivotal moment for both nature and the visitor's experience.

Average September Wind Speed in Patreksfjoerdur

The chart displays monthly wind speed patterns in Patreksfjoerdur, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec8.07.57.95.85.15.95.24.48.2 m/s8.87.37.1
Data source: Patreksfjoerdur September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Patreksfjoerdur Compares to Other Months

The weather in Patreksfjoerdur 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 Patreksfjoerdur and find detailed weather information for every month.

September and January present distinctly different weather conditions. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 13°C (55°F), with an average of 8°C (46°F). This month experiences significant rainfall, totaling 176 mm (6.9 inches) over 20 days, while maintaining high humidity at 89%. In contrast, January is much colder, with temperatures dipping to a minimum of -7°C (20°F) and averaging around 0°C (33°F). The maximum temperature reaches 7°C (46°F), accompanied by lower precipitation levels of 123 mm (4.8 inches) over 17 days, yet the humidity remains consistent at 89%. For more details on January weather specifically, you can check Patreksfjoerdur weather in January.

September and February present starkly different weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 13°C (55°F), with an average of 8°C (46°F). This month experiences significant rainfall, with 176 mm (6.9 in) of precipitation occurring over 20 days. In contrast, February is much colder, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 6°C (44°F) and an average of 0°C (33°F). Though February sees less precipitation at 127 mm (5.0 in) over 18 days, the humidity remains constant at 89%, making both months feel damp and cool. For more detailed information, you can check Patreksfjoerdur weather in February.

September and March showcase contrasting weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 13°C (55°F), with an average temperature of 8°C (46°F). This month receives considerable rainfall, with 176 mm (6.9 in) over about 20 days, and high humidity at 89%. In contrast, March experiences colder conditions, with temperatures dipping as low as -9°C (17°F), peaking at 6°C (43°F) and averaging around 0°C (33°F). The precipitation is also lower at 105 mm (4.1 in) over 16 days, while humidity hovers at 90%. For a deeper look into the weather specifics of March, you can visit Patreksfjoerdur weather in March.

When comparing the weather in September and April, it’s evident that September is generally milder, with average temperatures ranging from 2°C (36°F) to a maximum of 13°C (55°F), while April experiences cooler temperatures, with lows reaching -8°C (17°F) and a maximum of just 10°C (50°F). Precipitation is higher in September, totaling 176 mm (6.9 in) over approximately 20 days, compared to April's 112 mm (4.4 in) spread across 16 days. Humidity levels are fairly similar, with September's humidity at 89% and April's slightly lower at 86%. For a closer look at the specifics, you can check out the Patreksfjoerdur weather in April.

When comparing the weather in September and May, it's evident that both months experience cool temperatures, but September tends to be slightly milder. In September, the temperatures range from a minimum of 2°C (35°F) to a maximum of 13°C (55°F), with an average of 8°C (46°F). In contrast, May showcases a cooler range, with temperatures dipping to a minimum of -2°C (29°F) and peaking at 12°C (53°F), averaging 5°C (41°F). Additionally, September is notably wetter, receiving 176 mm (6.9 in) of precipitation over 20 days, compared to May's 81 mm (3.2 in) over just 13 days. Humidity levels are relatively high in both months, with September at 89% and May at 87%. For more detail on the weather specifics, you can check Patreksfjoerdur weather in May.

In comparing the weather of September and June, we can observe notable differences in temperature and precipitation. September typically features slightly cooler temperatures, with a minimum of 2°C (35°F) and an average of 8°C (46°F), while June has a minimum of 3°C (37°F) and an average of 7°C (46°F). Although both months share similar average temperatures, September experiences more rainfall, with a total precipitation of 176 mm (6.9 in) over 20 days compared to June's 84 mm (3.3 in) over 14 days. Humidity levels are also higher in September at 89%, while June maintains a lower humidity of 85%. For more details on June weather patterns, you can explore Patreksfjoerdur weather in June.

When comparing the weather between July and September, notable differences emerge. July typically enjoys a milder climate, with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 17°C (62°F). In contrast, September experiences cooler conditions, with temperatures averaging between 2°C (35°F) and 13°C (55°F). Additionally, precipitation levels are higher in September, totaling 176 mm (6.9 in) over 20 days, whereas July sees 98 mm (3.8 in) across 16 days. Humidity remains relatively consistent, with September at 89% and July slightly lower at 88%. For a detailed look at the conditions during July, you can visit Patreksfjoerdur weather in July.

September weather tends to be cooler and wetter compared to August. The minimum temperature in September drops to 2°C (35°F), while August maintains a milder minimum of 6°C (42°F). Average temperatures also reflect this shift, with September averaging 8°C (46°F) compared to August's 10°C (50°F). In terms of precipitation, September is notably wetter, receiving 176 mm (6.9 in) over 20 days, whereas August sees only 90 mm (3.6 in) over 12 days. Humidity levels are similar, with September at 89% and August slightly lower at 88%. For a closer look at August weather, you can check Patreksfjoerdur weather in August.

In September, the weather is generally milder with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 13°C (55°F), along with significant precipitation of 176 mm (6.9 in) over about 20 days, and high humidity at 89%. In contrast, October brings cooler temperatures, with lows dipping to -1°C (30°F) and highs reaching only 10°C (50°F). Precipitation decreases to 112 mm (4.4 in) over 17 days and humidity remains slightly lower at 88%. For more detailed insights about the weather in October, you can visit Patreksfjoerdur weather in October.

September and November present distinct weather patterns, reflecting the shift from early autumn to late fall. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 13°C (55°F), with an average of 8°C (46°F). The month is relatively wet, with 176 mm (6.9 in) of precipitation over 20 days, and high humidity at 89%. In contrast, November brings cooler temperatures, featuring a minimum of -3°C (27°F) and a maximum of 9°C (49°F), with an average of 3°C (37°F). Precipitation decreases to 105 mm (4.2 in) over 17 days, accompanied by slightly lower humidity at 87%. For a more detailed look at the weather in November, you can check this link: Patreksfjoerdur weather in November.

September weather is characterized by milder temperatures, with a minimum of 2°C (35°F) and an average of 8°C (46°F), peaking at 13°C (55°F). The month sees significant rainfall, with 176 mm (6.9 in) of precipitation across 20 days, contributing to a high humidity of 89%. In contrast, December features colder conditions, with temperatures dipping to a minimum of -6°C (21°F), an average of 1°C (35°F), and a maximum of 8°C (46°F). While it experiences less rainfall than September, totaling 102 mm (4.0 in) over 16 days, the humidity remains relatively high at 87%. For more information on the weather in this month, check out Patreksfjoerdur weather in December.

Compare Patreksfjoerdur's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Patreksfjoerdur

As September unfolds in Patreksfjörður, the weather takes a distinct turn, signaling the transition from summer to autumn. With an average temperature hovering around 8°C, this month is noticeably cooler compared to the balmy warmth of July and August. The frequent precipitation, accumulating to about 176 mm over approximately 20 days, contributes to the lush, dramatic landscapes that define this period. Coupled with a high humidity level of 89%, the air feels crisp and invigorating, perfect for exploring the breathtaking fjords. For a deeper understanding of how these conditions shape the region, check out the comprehensive details on the Patreksfjoerdur Climate.