September Weather in Llanes, Spain

Last updated: February 6, 2025

In September, the charming coastal town of Llanes, Spain experiences a pleasant mix of weather, characterized by maximum temperatures reaching up to 27°C (80°F) and an average temperature of around 19°C (66°F). With a minimum temperature of 13°C (56°F), visitors can enjoy comfortable days and cooler nights. However, it's important to note that rainfall is common, with 124 mm (4.9 in) of precipitation over 15 days, resulting in a humidity level of 77%. This blend of warm temperatures and frequent showers adds to the lush beauty of the region, making September an ideal time for travelers seeking both relaxation and adventure in this picturesque setting.

September Temperature in Llanes

In September, Llanes embraces the tail end of summer with pleasant temperatures. The month begins with a comfortable minimum of 13°C (56°F), rising to a delightful average of 19°C (66°F), and reaching a maximum of 27°C (80°F). This warmth signals a transition; while the summer days linger, the cooling evenings hint at the approaching autumn. As the air remains mild, September is an ideal time to explore the stunning landscapes and coastal beauty of this charming Spanish town before temperatures start to dip in October. Overall, the gradual shift from the height of summer into early autumn makes September a fabulous month for both locals and visitors alike.

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

The chart illustrates September temperature patterns in Llanes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec515252545863676866625654
Data source: Temperature data for Llanes 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 Llanes

September in Llanes, Spain, welcomes a notable shift in the weather pattern, as the month experiences 124 mm (4.9 in) of precipitation over approximately 15 days. This increase in rainfall serves as a transitional prelude to the more intense wet season ahead, particularly when compared to the drier summer months, with July and August averaging only 94 mm (3.7 in) and 100 mm (3.9 in) respectively. The substantial rainfall in September not only highlights a trend towards increased moisture, but also sets the stage for the following months, which are known for their significantly higher precipitation levels. This seasonal shift is a vital component of Llanes’ climate, ensuring that the landscape remains lush and vibrant even as autumn approaches.

September Precipitation Trends in Llanes

The chart displays monthly precipitation patterns in Llanes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec13112511810511211794100124152226214
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Llanes

In September, Llanes, Spain experiences a notable drop in humidity, with levels at 77%, marking the lowest point of the year. This decline follows the humid summer months of July and August, which see humidity levels peaking at 87% and 82% respectively. As autumn approaches, the gradual decrease in moisture in the air creates a more comfortable climate, hinting at the seasonal transition. This trend of diminishing humidity continues into October, where levels rise slightly to 80%, but still remain lower than the summer highs. Overall, September serves as a refreshing prelude to the milder conditions that the coming months will bring.

September Average Humidity in Llanes

This chart illustrates the average monthly humidity levels in Llanes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%81%81%83%87%82%77%80%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Llanes

As summer fades into autumn, the September UV Index in Llanes, Spain, reflects a gradual decline, reaching a UV Index of 7, categorized as high. This marks a shift from the intense very high levels experienced in the preceding months of June, July, and August, where precautions were crucial with burn times as short as 15 minutes. In September, outdoor enthusiasts can enjoy a more forgiving 25-minute burn time, allowing for a balance between soaking up the sun and practicing sun safety. It's a reminder of the changing seasons, where the sun's intensity decreases, yet vigilance remains important. To stay informed on daily UV levels, check out Llanes UV Index.

Maximum UV Index Levels in Llanes for September

The chart shows the monthly maximum UV Index (UVI) for Llanes 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.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Llanes 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 Llanes

As summer gracefully transforms into autumn, September brings a delightful blend of warmth and sunshine to Llanes, Spain, boasting 335 hours of radiant daylight. This marks a slight decrease from the sun-drenched days of July and August, which enjoyed peaks of 408 and 381 hours, respectively. However, September retains more sunlight than many winter months, as it stands out against October's 298 hours and November’s further decline at 238 hours. This transition creates a charming atmosphere, perfect for exploring the town's coastal beauty, with the lingering summer warmth inviting outdoor adventures amidst the backdrop of vibrant fall colors. Whether strolling along the beach or enjoying the local cuisine, September in Llanes offers an enchanting blend of light and charm.

Monthly Sunshine Duration in Llanes: September Highlighted

The September sunshine duration represents the total number of hours Llanes 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.
JanFebMarAprMayJunJulAugSepOctNovDec184h243h319h350h389h388h408h381h335h298h238h223h
Data source: Llanes September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Llanes During September

In Llanes, Spain, the likelihood of sunny weather in September stands at 31%, which reflects a moderate chance of sunshine as summer transitions into autumn. While this figure is higher than the gloomy winter months of January and February, it is on the lower side compared to the sunnier peak of July and August, both hovering around 40-41%. As the year progresses, the chance of sun sees a noticeable uptick in October at 43%, suggesting that while September can feel a bit unpredictable, it leads into a season where sunshine becomes more frequent again. Overall, though September marks a gentle dip from summer brightness, the warmth of the lingering sun still offers a pleasant backdrop for outdoor exploration.

Percentage of Sunny Days in September in Llanes

The chart illustrates the percentage of sunny days in Llanes 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 Llanes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%22%41%37%31%33%41%40%31%43%29%38%
Data source: Llanes September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Llanes in September

As summer gives way to autumn, September in Llanes, Spain, sees a delightful shift in daylight duration, offering an average of 12 hours of light. This marks a gradual decline from the sun-drenched heights of 15 hours in June and July, as the days begin to shorten. The transition is evident as August wraps up with 13 hours, leading into September's slightly dimmer embrace. With daylight still plentiful, visitors can enjoy a myriad of outdoor activities, but the rhythmic reduction foreshadows the cozy ambiance of the cooler months ahead. As daylight dwindles to 10 hours in October, the rhythm of nature prepares to usher in a tranquil autumn, inviting reflections on the seasonal changes.

Average Daylight Hours in Llanes for September

The chart illustrates the variation in daylight duration in Llanes throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 21m10h 30m11h 57m13h 26m14h 42m15h 20m15h13h 52m12h 27m10h 58m9h 40m9h
Data source: Llanes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Llanes

In September, the wind in Llanes, Spain begins to calm, averaging 3.1 m/s (7 mph), which marks the lowest point of the year. This gentle breeze gently sweeps through the coastal town, creating a serene backdrop as summer transitions into autumn. Compared to the more vigorous winds of the earlier months, September offers a peaceful respite that encourages outdoor exploration. As fall approaches, the winds pick up again in November, reaching 4.2 m/s (9 mph), signaling a shift in the seasonal rhythm. Overall, the trend reflects the cyclical nature of Llanes' climate, where every month brings its unique atmosphere, inviting both tranquility and anticipation for what lies ahead.

Average September Wind Speed in Llanes

The chart displays monthly wind speed patterns in Llanes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.73.43.53.43.53.43.53.1 m/s3.44.24.6
Data source: Llanes September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Llanes Compares to Other Months

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

September and January present quite contrasting weather patterns. In September, temperatures range from a comfortable minimum of 13°C (56°F) to a pleasant maximum of 27°C (80°F), with an average of 19°C (66°F). The month experiences moderate rainfall of 124 mm (4.9 in) over approximately 15 days, along with a humidity level of 77%. In stark contrast, January features cooler temperatures, with a minimum of 4°C (40°F), an average of 10°C (51°F), and a maximum of 17°C (64°F). Despite being slightly wetter, with 131 mm (5.2 in) of precipitation spread across 14 days and a higher humidity of 85%, January’s chilliness offers a markedly different climate. For a more detailed look at what to expect during this winter month, visit Llanes weather in January.

September and February present distinctly different weather patterns. In September, temperatures are generally milder, with averages around 19°C (66°F) and highs reaching 27°C (80°F), creating a warm atmosphere perfect for outdoor activities. In contrast, February experiences cooler conditions, with average temperatures dipping to 11°C (53°F) and maximums of only 20°C (68°F), which is a stark reminder that winter is still lingering. Both months see a similar amount of rainfall, approximately 124 mm (4.9 in), but February shows slightly higher humidity at 83% compared to September's 77%. For more details on February weather in Llanes, you can visit Llanes weather in February.

In September, temperatures tend to be significantly warmer, with averages around 19°C (66°F) and maximums reaching 27°C (80°F). The month also sees a relatively high level of precipitation, with 124 mm (4.9 in) falling over about 15 days, paired with a humidity of 77%. In contrast, March presents a much cooler climate, with temperatures averaging only 11°C (53°F) and maximums up to 19°C (67°F). The precipitation levels are slightly lower at 118 mm (4.7 in) over 16 days, but humidity rises to 82%. For more detailed information about March weather, you can visit Llanes weather in March.

September and April present distinct weather patterns, with September generally offering warmer temperatures. In September, the minimum temperature hovers around 13°C (56°F), peaking at 27°C (80°F), while April starts out cooler with a minimum of just 5°C (41°F) and a maximum of 20°C (69°F). Precipitation levels are somewhat comparable, with September receiving 124 mm (4.9 in) over 15 days, and April slightly less at 105 mm (4.1 in) over the same number of days. Humidity is slightly higher in April at 81%, compared to 77% in September. For a more detailed look at April weather, visit Llanes weather in April.

When comparing the weather in September and May, September tends to be warmer, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (80°F), while May has cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 24°C (75°F). In terms of precipitation, September averages 124 mm (4.9 in) over 15 days, slightly wetter than May, which sees 112 mm (4.4 in) spread across 16 days. Humidity levels are also relatively high for both months, with September at 77% and May at 81%, making both months feel quite humid. For more detailed information about the weather in Llanes during May, you can visit Llanes weather in May.

When comparing the weather in June and September, we can see some notable differences. September typically enjoys slightly warmer temperatures, with an average of 19°C (66°F) compared to June's average of 17°C (63°F). The maximum temperatures in September can reach up to 27°C (80°F), while June's peak is a bit lower at 26°C (78°F). However, precipitation levels are quite similar, with September receiving 124 mm over about 15 days, slightly more than June's 117 mm across 16 days. Humidity is also higher in June at 83%, compared to 77% in September. For a more detailed look at June weather, you can check out Llanes weather in June.

When comparing the weather in September and July, we see some interesting similarities and differences. Both months have a minimum temperature around 13-14°C (56-58°F) and an average maximum of 27°C (80°F), providing mild summer warmth. However, September tends to be slightly wetter, with 124 mm (4.9 in) of precipitation over 15 days, compared to 94 mm (3.7 in) over 14 days in July. Additionally, September's humidity at 77% is lower than July's more humid 87%, making the latter feel a bit stickier. For more details, check out Llanes weather in July.

In September, temperatures are slightly lower than in August, with a minimum of 13°C (56°F) compared to August's 15°C (59°F) and an average of 19°C (66°F) versus August's 20°C (68°F). The maximum temperatures remain similar, reaching up to 27°C (80°F) in both months. However, September sees higher precipitation levels, with 124 mm (4.9 in) falling over 15 days, while August experiences 100 mm (3.9 in) over 14 days. Additionally, humidity remains high in both months, but is marginally lower in September at 77% compared to August's 82%. For more detailed information, you can visit Llanes weather in August.

In September, temperatures range from a mild 13°C (56°F) to a warm 27°C (80°F), with an average of 19°C (66°F). The month sees considerable rainfall, totaling 124 mm (4.9 in), spread over 15 days, and the humidity is relatively high at 77%. In contrast, October experiences cooler temperatures, with a minimum of 8°C (46°F) and an average of 17°C (62°F), while the maximum can still reach 28°C (83°F). Rainfall increases slightly to 152 mm (6.0 in) over the same number of days, and humidity rises to 80%. For a deeper look at weather patterns during this month, check out Llanes weather in October.

In comparing the weather between September and November, September tends to be milder with average temperatures around 19°C (66°F) and maximums reaching up to 27°C (80°F). In contrast, November sees a noticeable drop, with average temperatures dropping to 14°C (57°F) and maximums only reaching 20°C (69°F). Additionally, November is wetter, with a total precipitation of 225 mm (8.9 in) over 17 days, compared to September's 124 mm (4.9 in) across 15 days. Humidity levels also rise slightly from September's 77% to November's 83%. For more specific details about the weather conditions, you can visit Llanes weather in November.

In September, the weather typically features milder temperatures, with averages around 19°C (66°F) and highs reaching up to 27°C (80°F), making it a pleasant time to enjoy outdoor activities. However, this month also experiences significant rainfall, with 124 mm (4.9 in) over 15 days and humidity levels hovering at 77%. In contrast, December brings cooler conditions, with average temperatures dropping to 12°C (54°F) and maximums of 18°C (64°F). This month is also wetter, with 214 mm (8.4 in) of precipitation over 18 days and a slightly higher humidity of 85%. For more detailed insights, check out Llanes weather in December.

Compare Llanes's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Llanes

As summer gradually fades, September in Llanes presents a delightful transition with comfortably warm temperatures and a mix of sun and occasional rain. Unlike the scorching heat of July and August, the average temperature cools to a refreshing 19°C, making it an ideal month for outdoor activities. However, it also brings increased humidity and a notable amount of precipitation, with around half the month experiencing rain. This balance of warmth and occasional showers creates lush landscapes and vibrant scenery in the region. For those seeking to explore Llanes during this enchanting month, understanding the local climate patterns is essential; learn more at Llanes Climate.