September Weather in Vik i Myrdal, Iceland

Last updated: March 17, 2025

September in Vík í Mýrdal, Iceland offers a uniquely brisk experience, with temperatures ranging from a maximum of 11°C (51°F) to a chilly minimum of -1°C (30°F). The average temperature settles around 6°C (44°F), providing a cool backdrop for exploration. Visitors should prepare for wet weather, as the region experiences 305 mm (12.0 in) of precipitation over 20 days, contributing to its lush landscapes. With an 87% humidity level, the atmosphere feels refreshing yet damp, making September a month of dramatic weather contrasts and stunning natural beauty.

September Temperature in Vik i Myrdal

As September rolls into Vik í Mýrdal, Iceland, the temperatures begin to show a subtle transition toward autumn. With a minimum of -1°C (30°F) and a maximum of 11°C (51°F), the month offers a cooler average of 6°C (44°F), providing a refreshing contrast to the warmer summer months. This slight dip in temperature signifies a shift from the mild conditions of August, which recorded similar lows but higher maximums. As the days shorten, this early autumn air not only brings a crispness to the landscape but also sets the stage for stunning seasonal changes, inviting visitors to explore the dramatic scenery of Iceland's southern coast.

September Weather in Vik i Myrdal: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Vik i Myrdal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333334363943464744393534
Data source: Temperature data for Vik i Myrdal generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Vik i Myrdal

In September, Vik i Myrdal experiences a notable increase in precipitation, with 305 mm (12.0 in) of rainfall over 20 days, marking it as a significant transitional month. This surge from the more subdued summer months hints at the encroaching autumn weather patterns, which typically deliver heavier and more frequent rains. Compared to August's 143 mm (5.6 in) of rain, September reminds us of Iceland's dynamic climate, as it prepares for the wetter months ahead, such as October and November, where averages hover around 250-262 mm. This trend illustrates the shift from milder summer conditions to the more robust, moisture-laden atmosphere characteristic of the fall season.

September Precipitation Trends in Vik i Myrdal

The chart displays monthly precipitation patterns in Vik i Myrdal, 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.
JanFebMarAprMayJunJulAugSepOctNovDec249347231256218138134144305250262282
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vik i Myrdal

In September, Vik i Myrdal, Iceland, experiences a notable humidity level of 87%, reflecting a slight dip from the peak summer months of July and August, which both reached 88%. This month often transitions the coastal town from the warmth of summer into the crisper autumn air, while still retaining an undulating sense of moisture in the atmosphere. The humidity begins to stabilize as the region shifts towards winter, with levels in September closely mirroring those of October. Overall, the trend throughout the year showcases a fairly consistent pattern, with humidity levels hovering in the mid to high 80s and peaking in the heart of summer, providing a unique backdrop to Vik's breathtaking landscapes.

September Average Humidity in Vik i Myrdal

This chart illustrates the average monthly humidity levels in Vik i Myrdal, 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.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%84%81%84%84%88%88%87%87%84%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vik i Myrdal

As summer fades into autumn, September in Vik i Myrdal sees a transition in UV exposure, with a moderate UV Index of 3. This marks a decrease from the high levels experienced during the peak summer months of June and July, which had an index of 6. As the days grow shorter and cooler, the burn time also shifts, allowing for about 30 minutes of unprotected sun exposure before the risk of skin damage increases. Comparatively, the UV index begins to decline further in October, signaling the approach of winter's lower UV exposure. For those planning outdoor activities, September offers a perfect opportunity to enjoy the stunning landscapes of Iceland while staying mindful of the sun. For more detailed information, visit Vik i Myrdal UV Index.

Maximum UV Index Levels in Vik i Myrdal for September

The chart shows the monthly maximum UV Index (UVI) for Vik i Myrdal 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.
JanFebMarAprMayJunJulAugSepOctNovDec112456653211
Data source: Vik i Myrdal 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 Vik i Myrdal

September in Vik i Myrdal, Iceland, offers a delightful transition as summer begins its gentle fade. With 205 hours of sunlight, this month stands out as a period of vibrant change, following a peak in sunlight during June and July. As autumn approaches, the daylight diminishes, yet September holds on to the warmth of the summer months, providing a beautiful backdrop for exploring the stunning landscapes. The gradual decline from the summer's bounty showcases the enchanting allure of Iceland, inviting visitors to revel in its natural beauty before the long winter. This captivating interplay of light and shadow makes September a unique time to experience Vik i Myrdal's charm.

Monthly Sunshine Duration in Vik i Myrdal: September Highlighted

The September sunshine duration represents the total number of hours Vik i Myrdal 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.
JanFebMarAprMayJunJulAugSepOctNovDec44h91h188h220h308h341h320h310h205h142h81h35h
Data source: Vik i Myrdal September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Vik i Myrdal During September

In September, Vik i Myrdal experiences a modest 15% chance of sunny weather. This statistic places it on par with August, which also sees a similar likelihood, indicating a trend of reduced sunshine as the summer months wane. Notably, the sunniest months, April and May, boast around 31%, welcoming longer, brighter days, while the onset of autumn signals a gradual decline in sunny spells. With September's figures hovering closely to those of earlier fall months like October and November, it's evident that while sunshine is possible, travelers should also prepare for the iconic Icelandic unpredictability in weather.

Percentage of Sunny Days in September in Vik i Myrdal

The chart illustrates the percentage of sunny days in Vik i Myrdal 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 Vik i Myrdal experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%13%20%31%31%19%24%15%16%19%20%18%
Data source: Vik i Myrdal September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Vik i Myrdal in September

As summer fades into autumn in Vik i Myrdal, Iceland, September brings a gentle transition with 12 hours of daylight. Following the long, sunlit days of June and July, which boast nearly 20 hours of sunlight, September serves as a bridge to the shorter days ahead. With daylight gradually diminishing from the vibrant 18 hours of May and settling at 12 in September, there's a noticeable shift in the atmosphere, inviting the crispness of fall. As the month progresses, the charm of Iceland's landscapes transforms, embracing the golden hues of early autumn, while hinting at the long, reflective nights to come.

Average Daylight Hours in Vik i Myrdal for September

The chart illustrates the variation in daylight duration in Vik i Myrdal throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec5h 46m8h 40m11h 50m15h 4m18h 14m20h 19m19h 7m16h 4m12h 54m9h 43m6h 38m4h 41m
Data source: Vik i Myrdal daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Vik i Myrdal

As summer gracefully transitions to autumn in Vik i Myrdal, September showcases a noticeable uptick in wind activity, with an average wind speed of 5.3 m/s (12 mph). This marks a shift from the calm breezes of August, where the winds slowed to a gentle 3.7 m/s (8 mph). The winds tend to pick up again in October, reaching 5.9 m/s (13 mph), indicating an impending seasonal shift that infuses the landscape with dynamic energy. Overall, September serves as a pivotal moment in the rhythm of the seasons, bridging the tranquility of summer with the brisk, invigorating winds of autumn, setting the stage for nature's vibrant transformation.

Average September Wind Speed in Vik i Myrdal

The chart displays monthly wind speed patterns in Vik i Myrdal, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.27.45.15.04.25.03.83.75.3 m/s5.96.55.9
Data source: Vik i Myrdal September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Vik i Myrdal Compares to Other Months

The weather in Vik i Myrdal 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 Vik i Myrdal and find detailed weather information for every month.

In comparing the weather of September and January, September tends to be milder with average temperatures around 6°C (44°F) and maximums reaching 11°C (51°F), while January experiences colder conditions with average temperatures of 0°C (33°F) and highs only reaching 7°C (45°F). Precipitation in September is notably higher at 305 mm (12.0 in) over 20 days, contributing to a humid atmosphere with humidity levels at 87%. In contrast, January sees less precipitation at 249 mm (9.8 in) across 17 days and slightly lower humidity at 83%. Overall, September offers a more temperate climate, while January presents a chillier, yet somewhat drier experience. For a more detailed look, check out the Vik i Myrdal weather in January.

In September, Vik i Myrdal experiences relatively milder temperatures, with averages around 6°C (44°F) and maximums reaching 11°C (51°F). Precipitation is significant during this month, totaling about 305 mm (12.0 in) across approximately 20 days, coupled with high humidity levels of 87%. In contrast, February brings colder conditions, where temperatures drop, averaging around 1°C (33°F) and peaking at 7°C (45°F). The month sees even higher precipitation, measuring 347 mm (13.7 in) over 24 days, though humidity is slightly lower at 81%. For more details on the weather during this winter month, you can visit Vik i Myrdal weather in February.

In comparing the weather between September and March, we see distinct differences in both temperature and precipitation. September offers a milder climate with average temperatures around 6°C (44°F) and peak highs of 11°C (51°F), while March is colder, with average temperatures dropping to 1°C (34°F) and maximums of only 7°C (44°F). Precipitation is higher in September, totaling 305 mm (12.0 in) over 20 days, compared to March's 231 mm (9.1 in) across 23 days. Humidity levels remain relatively close, with September at 87% and March at 84%. For a closer look at March conditions in Iceland, you can check Vik i Myrdal weather in March.

When comparing the weather in September and April, there are notable differences in temperature and precipitation. September typically sees milder temperatures, with a minimum of -1°C (30°F) and an average of 6°C (44°F), while April, on the other hand, can be chillier with a minimum of -11°C (13°F) and an average of 2°C (36°F). Both months experience a similar number of rainy days, with precipitation lasting about 20 days, but September generally receives more rainfall at 305 mm (12.0 in) compared to April's 256 mm (10.1 in). Humidity levels in September are also higher at 87%, compared to April’s 81%. For more information on the weather specifics in April, check out Vik i Myrdal weather in April.

When comparing the weather of September and May, September experiences slightly milder temperatures with an average of 6°C (44°F) and maximums reaching 11°C (51°F), whereas May sees a lower average of 4°C (39°F) with maximum temperatures up to 12°C (54°F). Precipitation is more pronounced in September, with 305 mm (12.0 in) falling over 20 days compared to May’s 218 mm (8.6 in) over 22 days. The humidity levels are relatively similar, at 87% in September and 84% in May, contributing to a consistently damp atmosphere during both months. For more detailed insights into May weather, check out Vik i Myrdal weather in May.

In September, the weather is characterized by a cooler temperature range, with minimums dropping to -1°C (30°F) and a maximum of only 11°C (51°F). This month also experiences significantly higher precipitation at 305 mm (12.0 in) across approximately 20 days, contributing to higher humidity levels at 87%. In contrast, June sees slightly warmer temperatures, with minimums starting at 2°C (36°F) and maximums reaching 12°C (54°F), alongside reduced rainfall, totaling 138 mm (5.4 in) over about 16 days and maintaining a humidity level of 84%. For further insights on June weather patterns, you can check Vik i Myrdal weather in June.

In comparing the weather of September and July, September is noticeably colder, with daytime temperatures averaging around 6°C (44°F) compared to July's average of 8°C (47°F). The temperature peaks are also lower in September, reaching a maximum of 11°C (51°F) compared to July's 14°C (57°F). Additionally, September experiences significantly more precipitation, totaling 305 mm (12.0 in) over roughly 20 days, while July sees only 134 mm (5.3 in) over 16 days. Humidity levels remain fairly consistent, with September at 87% and July slightly higher at 88%. For more detailed insights, check out Vik i Myrdal weather in July.

In comparing the weather of September to that of August, it's clear that September is significantly cooler, with average temperatures dropping from 8°C (47°F) in August to just 6°C (44°F) in September. The minimum and maximum temperatures also reflect this shift, with September reaching a maximum of only 11°C (51°F) compared to August's 13°C (55°F). Additionally, September experiences considerably more precipitation, totaling 305 mm (12.0 in) over 20 days, while August sees just 143 mm (5.6 in) across 16 days. Humidity levels remain similar, with September at 87% and August slightly higher at 88%. For a more detailed look at August weather in this region, check out Vik i Myrdal weather in August.

In comparing the weather between September and October, we notice a slight drop in temperatures, with September averaging 6°C (44°F) compared to October's average of 4°C (40°F). The minimum temperatures also decrease, from -1°C (30°F) in September to -5°C (23°F) in October. While both months experience the same number of rainy days (20), October sees reduced precipitation at 250 mm (9.8 in) compared to September's 305 mm (12.0 in). Interestingly, humidity remains consistent at 87% in both months, making the air feel equally damp despite the cooler temperatures in October. For more details, you can check Vik i Myrdal weather in October.

September experiences slightly milder temperatures compared to November, with average highs reaching 11°C (51°F) and lows around -1°C (30°F). In contrast, November sees colder averages, with maximum temperatures peaking at 8°C (47°F) and minimums dropping to -5°C (23°F). While September is wetter, recording 305 mm (12.0 in) of precipitation over 20 days, November has a bit less rainfall at 262 mm (10.3 in) over 19 days. Despite the slight decrease in humidity from September (87%) to November (84%), both months remain quite damp and cool. For a more detailed look at November's weather specifics, check out Vik i Myrdal weather in November.

In September, temperatures in Vik i Myrdal range from a chilly -1°C (30°F) at night to a moderate 11°C (51°F) during the day, with an average temperature of 6°C (44°F). The month experiences significant rainfall, with 305 mm (12.0 in) over approximately 20 days, contributing to a high humidity level of 87%. In contrast, December sees colder conditions, with minimum temperatures dropping to -7°C (19°F) and a maximum of 7°C (45°F), resulting in a lower average of 1°C (34°F). Precipitation slightly decreases to 282 mm (11.1 in), maintaining the frequency of rain over 20 days, while humidity remains relatively high at 83%. Overall, December weather is colder and slightly drier compared to September. For more specifics, visit Vik i Myrdal weather in December.

Compare Vik i Myrdal's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Vik i Myrdal

As September unfolds in Vik i Myrdal, the weather transitions from the warmth of summer, marked by cooler temperatures and increased precipitation. With an average temperature of 6°C, this month brings a noticeable chill, hinting at the approaching autumn. Expect cloudy days and frequent rain, as September witnesses a significant rise in precipitation compared to the preceding summer months. The high humidity of 87% further contributes to the damp atmosphere, making it essential for visitors to prepare for varied conditions. Embrace the beauty of this coastal village during a month filled with dramatic landscapes and shifting weather. To learn more about the overall climate in this enchanting area, visit Vik i Myrdal Climate.