Last updated: August 25, 2025
In September, the picturesque village of Pas de la Casa, Andorra experiences a delightful transitional climate, with maximum temperatures reaching a comfortable 23°C (73°F) and an average hovering around 11°C (51°F). This month is typically marked by a chill as the minimum temperatures can dip to -3°C (26°F), especially during the night. Rainfall is common, with about 80 mm (3.1 in) spread over 13 days, contributing to the lush, vibrant landscape that characterizes the region. Humidity levels linger around 73%, adding a slight crispness to the air, making September an ideal time for nature lovers and outdoor enthusiasts to explore the breathtaking scenery of the Pyrenees.
In September, Pas de la Casa experiences a transition from the summer warmth to the crispness of autumn. The minimum temperature hovers around -3°C (26°F), while the average settles at a comfortable 11°C (51°F), allowing for pleasant outdoor activities. Daytime highs reach up to 23°C (73°F), providing a perfect backdrop for hiking and exploring the stunning Andorran landscapes. As the month progresses, you can sense the cool embrace of early autumn, foreshadowing the colder months ahead, and contrasting sharply with the summer peaks. This delightful shift creates an inviting atmosphere, making September an exciting time to visit this picturesque mountain destination.
September in Pas de la Casa, Andorra, typically brings a moderate rainfall of about 80 mm (3.1 in), with precipitation occurring on approximately 13 days. This marks a slight decrease from the wetter months of summer, yet still reflects the region's lush landscape as it transitions into autumn. Following August's rainfall of 83 mm, September's precipitation hints at the lingering effects of summer storms while preparing for the increased moisture of October, which averages 90 mm. This pattern suggests that although the summer heat begins to wane, the mountain climate continues to nurture the surrounding flora, maintaining the vibrant Alpine beauty that Pas de la Casa is celebrated for.
As September rolls into Pas de la Casa, Andorra, the humidity begins to settle at 73%, a slight uptick from the summer lows of 70% in August. This gradual increase signals the transition from the dry warmth of summer to the cooler, more humid conditions of autumn. Throughout the year, humidity tends to peak in the winter months, hitting a high of 88% in December, while it remains lower during the peak summer, reaching its annual low of 72% in July. However, September's relative humidity serves as a gentle reminder of nature's shift, bridging the gap toward the wetter months that follow, ultimately setting the stage for the brisk winter chill that lies ahead.
As summer transitions into autumn, September in Pas de la Casa, Andorra still boasts a very high UV Index of 8, indicating that sun exposure remains significant. With a burn time of just 15 minutes, it's crucial to maintain sun safety practices, especially as the previous month's extreme UV levels begin to fade. This pattern signifies a gradual decline from the peak of 11 seen in July and June, yet the risk remains elevated compared to earlier months. As the sun continues its descent towards winter, the landscape may change, but the importance of sun protection remains clear. For more insights on managing your UV exposure throughout the year, visit Pas de la Casa UV Index.
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In September, Pas de la Casa basks in a glorious 343 hours of sunshine, marking a transition into autumn that is both vibrant and inviting. This month showcases a gentle yet significant decline in sunlight compared to the summer peak of 427 hours in July, yet it remains a splendid time for outdoor enthusiasts. The trend from May through August tells a compelling story of abundant daylight, culminating in an idyllic late-summer atmosphere. As the days shorten and the cooler breezes begin to weave through the valley, September’s basking sun continues to charm, inviting visitors to embrace the crisp mountain air and the stunning natural backdrop of Andorra's peaks.
In Pas de la Casa, Andorra, the likelihood of sunny weather in September dips to a modest 21%, marking it as one of the least sunny months of the year. As summer wanes, the chances of sun decline significantly from the peak seen in July and August, which boast probabilities of 45% and 47% respectively. This trend highlights a transition from the vibrant sunlight of summer to the cooler days of autumn. Interestingly, October experiences a rebound, climbing back to 45%, suggesting that while September may bring fewer sunny days, the surrounding months offer more optimistic prospects for those seeking sunshine in the breathtaking Pyrenees.
As summer gently wanes into autumn, September in Pas de la Casa, Andorra, offers a delightful balance of daylight, with approximately 12 hours of sunshine. Following the peak of 15 hours in June, the gradual decline in daylight hours reflects the transition into the cooler months, with daylight gradually diminishing from 14 hours in July and 13 hours in August. This rhythm of changing light sets the stage for a stunning autumn landscape, where the vibrant colors of nature begin to take center stage. As the days shorten into October, the allure of September lies not just in its generous light, but in the promise of the crisp, refreshing days that follow—a perfect time for exploration and adventure in this picturesque alpine setting.
In September, the winds in Pas de la Casa gently taper off, with an average speed of 1.4 m/s (3 mph), making it one of the calmest months of the year. This marks a noticeable decline from the summer months, as playful breezes give way to a more tranquil atmosphere, signaling the approach of autumn. As the seasons transition, it’s clear that the wind speeds gradually decrease from 1.7 m/s (4 mph) in the summer to this low point in September. Observing this trend, one can appreciate how the serene winds perfectly complement the stunning landscapes, inviting visitors to enjoy the crisp mountain air in a peaceful retreat before the onset of winter.
Weather in Pas de la Casa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Pas de la Casa, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is generally milder, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 23°C (73°F) and an average of 11°C (51°F). The month sees about 80 mm (3.1 in) of precipitation over 13 days, and the humidity averages around 73%. In contrast, January is significantly colder, with temperatures dipping as low as -21°C (-6°F) and reaching a maximum of 11°C (52°F), averaging -3°C (27°F). While precipitation levels are slightly higher at 81 mm (3.2 in), it occurs over just 10 days, and humidity rises to 87%. For more detailed information, you can check Pas de la Casa weather in January.
September and February present stark contrasts in weather. September typically enjoys a milder climate, with temperatures ranging from a minimum of -3°C (26°F) to a pleasant maximum of 23°C (73°F), while averaging around 11°C (51°F). It also experiences more precipitation, with 80 mm (3.1 in) over approximately 13 days and a humidity level of 73%. In contrast, February is much colder, with temperatures dipping as low as -19°C (-3°F) and peaking at only 12°C (54°F), averaging 0°C (32°F). February is drier with 58 mm (2.3 in) of precipitation over 9 days but has a higher humidity of 83%. For more details on February weather, visit Pas de la Casa weather in February.
In September, temperatures range from a chilly -3°C (26°F) at night to a warm 23°C (73°F) during the day, with an average of 11°C (51°F). The month experiences about 80 mm (3.1 in) of precipitation over 13 days, with humidity levels around 73%. In contrast, March presents cooler temperatures, with nighttime lows dropping to -11°C (12°F) and daytime highs reaching 15°C (58°F), averaging at 1°C (34°F). Precipitation slightly increases to 86 mm (3.4 in) over 14 days, while humidity rises to 80%. For a detailed look at March weather, visit Pas de la Casa weather in March.
September and April present contrasting weather patterns, with September typically enjoying milder temperatures and less severe conditions. In September, temperatures range from a minimum of -3°C (26°F) to a comfortable average of 11°C (51°F) and a maximum of 23°C (73°F), alongside 80 mm (3.1 in) of precipitation over 13 days at a humidity level of 73%. In contrast, April experiences colder conditions, with temperatures seeing a minimum of -13°C (8°F) and an average of just 3°C (38°F), peaking at 14°C (58°F). Precipitation also increases slightly to 98 mm (3.9 in) over 14 days, accompanied by a higher humidity of 77%. This variability in temperature and precipitation highlights the transitional nature of spring in April compared to the more stable conditions of early autumn in September. For more details about April weather in Pas de la Casa, you can visit Pas de la Casa weather in April.
September and May present distinctly different weather patterns. In September, temperatures range from a minimum of -3°C (26°F) to a pleasant maximum of 23°C (73°F), with an average of 11°C (51°F). The month experiences moderate rainfall, totaling 80 mm (3.1 in) across 13 days, accompanied by a humidity level of 73%. In contrast, May is cooler overall, with minimum temperatures dipping to -10°C (15°F) and an average of 7°C (45°F), while the maximum reaches 22°C (72°F). Precipitation is higher in May, totaling 118 mm (4.6 in) over 18 days, with a slightly elevated humidity of 75%. These differences highlight a transition from the late summer warmth of September to the lingering chill of spring in May. For more details, check out Pas de la Casa weather in May.
When comparing the weather in September and June, there are some notable differences. September generally has a broader temperature range, with a minimum of -3°C and a maximum of 23°C, while June features a slightly lower minimum of -4°C but a higher maximum of 28°C. Precipitation levels are also higher in June, totaling 128 mm over 14 days compared to September’s 80 mm across 13 days. Both months experience similar humidity levels, hovering around 73-74%. For more specifics on June weather, you can check Pas de la Casa weather in June.
When comparing the weather between July and September, July tends to be slightly warmer with average temperatures ranging from 2°C (36°F) to a maximum of 25°C (77°F), while September features cooler temperatures, with a minimum of -3°C (26°F) and an average of 11°C (51°F). Both months experience similar levels of precipitation, with July receiving 79 mm (3.1 in) over 11 days and September slightly higher at 80 mm (3.1 in) over 13 days. Humidity remains fairly constant, hovering around 72% in July and 73% in September. For more specific details on July's conditions, you can check Pas de la Casa weather in July.
In comparing the weather between September and August, we observe some notable differences in temperature and precipitation. September experiences cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 23°C (73°F), while August boasts a slightly warmer range with a minimum of -1°C (31°F) and a maximum of 27°C (80°F). Both months have comparable precipitation, with September receiving 80 mm (3.1 in) over 13 days and August slightly more at 83 mm (3.3 in) over 12 days. Humidity levels are also similar, at 73% in September and 70% in August. For more detailed insights, you can check the Pas de la Casa weather in August.
September weather is generally milder, with average temperatures ranging from a minimum of -3°C (26°F) to a maximum of 23°C (73°F) and a moderate precipitation of 80 mm (3.1 in) spread over 13 days. In contrast, October brings cooler temperatures, with the average dipping to 7°C (44°F) and a maximum of 20°C (69°F), while the minimum can reach a chilly -12°C (11°F). Precipitation increases slightly to 90 mm (3.5 in) but occurs over fewer days, totaling just 10. Additionally, humidity rises from 73% in September to 82% in October, making the air feel a bit heavier. For more detailed insights into the October weather, you can visit Pas de la Casa weather in October.
In comparing the weather between September and November, it's clear there is a significant drop in temperatures. September experiences milder conditions, with average temperatures around 11°C (51°F), peaking at 23°C (73°F), while November sees a chilling average of 0°C (33°F) and lows plummeting to -16°C (4°F). Precipitation levels are comparable, with September recording 80 mm (3.1 in) and November slightly higher at 87 mm (3.4 in), both spread over 13 days. Notably, November also brings increased humidity at 87%, compared to September's 73%. For more detailed information, you can check out the Pas de la Casa weather in November.
In September, the weather is relatively mild, with average temperatures around 11°C (51°F) and a maximum of 23°C (73°F), making it a comfortable time for outdoor activities. However, as we transition into December, temperatures drop significantly, averaging -1°C (30°F), with lows reaching -15°C (5°F). Precipitation remains consistent between the two months, with September seeing 80 mm (3.1 in) over 13 days and December experiencing slightly more at 89 mm (3.5 in) across 12 days. Additionally, December exhibits higher humidity at 88%, compared to September's 73%. For a closer look at the winter conditions, check out Pas de la Casa weather in December.
As summer gives way to autumn in Pas de la Casa, September showcases a delightful transition in weather. With mild maximum temperatures that can reach 23°C, visitors can still enjoy outdoor activities, but the cooler average and crisp nights remind you that winter is on the horizon. Unlike the drier summer months, September brings increased precipitation, with roughly 13 rainy days throughout the month, making the air feel fresh and the landscape lush. Additionally, the humidity level remains notable at 73%, adding a layer of comfort to the cool mountain air. For those planning a visit, understanding this dynamic climate is key; you can learn more about it at Pas de la Casa Climate.