Last updated: February 24, 2025
Experience the September weather in Furnas, Portugal, where temperatures range from a pleasant 17°C (63°F) to a warm 27°C (82°F), with an average of 22°C (71°F). This picturesque month brings about 64 mm (2.5 in) of precipitation, spanning 17 days, creating a lush and vibrant landscape. The air is infused with a comfortable 81% humidity, making it an ideal time to explore the stunning natural beauty of the Açores while enjoying the mild and refreshing climate.
In Furnas, Portugal, September marks the transition from summer to autumn, showcasing pleasantly warm temperatures that make it an ideal time to explore the region. With minimums around 17°C (63°F) and highs reaching up to 27°C (82°F), the month boasts an average temperature of 22°C (71°F), providing a comfortable climate for outdoor activities. As the month progresses, the warmth begins to mellow, hinting at the cooler months ahead; however, September still retains a gentle touch of summer’s lingering heat. This trend reflects a gradual decline from the peak summer temperatures observed in August, making it a delightful time to enjoy the lush landscapes and vibrant culture of Furnas before autumn fully takes hold.
In September, Furnas experiences a noteworthy shift in precipitation patterns, with an accumulation of 64 mm (2.5 in) of rain over 17 days. This amount reflects a return to more substantial moisture following the drier summer months, particularly July and June, where rainfall dipped to just 25 mm (1.0 in) and 44 mm (1.7 in), respectively. The increase in wet days emphasizes the transitional nature of early autumn, signaling a vibrant shift in the region's climate as it prepares for the wetter months ahead. This trend highlights a gradual progression toward the October peak, where precipitation surges to 92 mm (3.6 in), marking a definitive end to the drier summer and the onset of a lush fall.
In September, Furnas, Portugal, experiences a comfortable humidity level of 81%, slightly lower than the peak summer months. This figure reflects a notable trend, as the humidity remains relatively stable throughout the year, fluctuating between 79% and 84% across the seasons. While winter months typically see higher humidity readings, notably 84% in December, autumn begins with a gentle transition as the summer humidity of 82-83% subsides. Overall, September’s humidity offers a balmy experience, bridging the vibrant warmth of summer with the crispness of fall, making it an appealing time to enjoy the lush landscapes and geothermal wonders that Furnas is renowned for.
September in Furnas, Portugal continues the trend of summer's intense sun, featuring a very high UV Index of 9. After the peak UV levels of June and July, the sunlight remains strong, demanding careful exposure management with a burn time of just 15 minutes. While the days are still warm and inviting, the gradual decline in UV intensity hints at the approaching autumn, as October will bring a drop to a high UV Index of 7. Those planning outdoor activities should remain vigilant during this month—after all, protecting your skin is crucial even as summer fades. For detailed UV forecasts, visit Furnas UV Index.
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September in Furnas, Portugal bids farewell to summer with a splendid 323 hours of sunshine, making it one of the sunniest months of the year. As the days transition from the scorching heights of July and June, which boast 379 and 360 hours respectively, September still offers a delightful warmth, perfect for outdoor adventures and soaking in the stunning landscapes. This month marks a gentle decline in sunlight compared to August's impressive 361 hours, hinting at the upcoming shift toward fall. However, the abundant sunshine lingers, ensuring that September remains a charming time to experience the natural beauty and unique geothermal wonders of Furnas, setting the stage for a smooth transition into the cozier atmosphere of autumn.
As summer fades, September in Furnas, Portugal showcases a delightfully high chance of sunshine, boasting 44% sunny days—an inviting prospect for outdoor enthusiasts. This month exhibits a noticeable trend of increasing sunlight, with July and August reaching peaks of 35% and 50% respectively, making September a smooth transition into fall. Following the summer months, September’s sunlit days cater to those looking to bask in the pleasant weather before the cooler temperatures set in; it's a time when the landscape still enjoys the warmth of the sun, offering a perfect backdrop for exploration and relaxation.
As summer transitions to autumn in Furnas, Portugal, September heralds a shift in daylight, offering approximately 12 hours of sunlight. This marks a gradual decline from the peak of 14 hours experienced during the summer months of June through August. While the daylight diminishes, the change is a gentle one, allowing for plenty of warmth and brightness before the arrival of the shorter days of October and November. As the year progresses, daylight duration ebbs and flows, with January and December echoing the briefest moments of light at just 9 hours. This rhythmic dance of daylight not only influences the beauty of Furnas’ landscapes but also enriches the experiences of those who visit, encouraging outdoor exploration and appreciation of the natural wonders that define this charming locale.
In September, the wind in Furnas, Portugal, whispers gently at an average speed of 3.7 m/s (8 mph), marking a subtle decline from the summer breezes of previous months. This trend mirrors the gradual cooling of the season, as the winds have shown a consistent decrease since their peak in February. As the year transitions into autumn, the softer gusts invite visitors to relish the serene beauty of the landscape, where the lush greenery meets the tranquil coast. With October promising a slight uptick in wind activity at 4.0 m/s (9 mph), you can expect the breezes to playfully dance with the falling leaves, enhancing the idyllic charm of this picturesque locale.
The weather in Furnas 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 Furnas and find detailed weather information for every month.
September in Furnas is characterized by warmer temperatures, with an average of 22°C (71°F) and highs reaching 27°C (82°F). The month experiences significant humidity at 81%, along with 64 mm (2.5 in) of precipitation spread over 17 days. In contrast, January brings cooler weather, with average temperatures around 15°C (59°F), peaking at 19°C (67°F) and dipping to a minimum of 9°C (49°F). Despite both months receiving similar precipitation levels of 64 mm (2.5 in), January has slightly fewer rainy days at 13, while maintaining a higher humidity of 82%. For more information on January weather trends, check out Furnas weather in January.
September typically boasts warmer temperatures, ranging from a minimum of 17°C (63°F) to a maximum of 27°C (82°F), with an average of 22°C (71°F). In contrast, February experiences much cooler weather, with temperatures ranging from 9°C (48°F) to 19°C (67°F) and an average of 14°C (58°F). While September sees approximately 64 mm (2.5 in) of precipitation over 17 days, February has slightly higher precipitation at 78 mm (3.1 in) across 12 days. The humidity levels are quite similar, with September at 81% and February at 80%. For more details on February weather, you can check Furnas weather in February.
September generally boasts warmer weather compared to March, with average temperatures peaking at 22°C (71°F) and maxing out at 27°C (82°F). In contrast, March experiences a cooler climate, with an average temperature of 14°C (58°F) and a maximum of 20°C (68°F). While September has a higher precipitation total of 64 mm (2.5 in) spread over 17 days, March is slightly drier with 56 mm (2.2 in) over just 11 days. Humidity remains relatively consistent between the two months, with September at 81% and March at 82%. For more detailed information, you can check Furnas weather in March.
In comparing the weather of September and April, it’s clear that September enjoys warmer temperatures, with an average of 22°C (71°F), compared to April's cooler average of 15°C (59°F). While September sees a comfortable range from a minimum of 17°C (63°F) to a maximum of 27°C (82°F), April's temperatures only stretch from a low of 9°C (49°F) to a high of 20°C (69°F). Precipitation levels in April are slightly higher, with 80 mm (3.1 in) over 16 days, compared to September’s 64 mm (2.5 in) over 17 days. Humidity remains similar, hovering around 81% in September and 83% in April, making both months relatively humid. For a deeper dive into April's specific weather patterns, you can check this link: Furnas weather in April.
September and May present distinct weather patterns, reflecting the transitional nature of these months. September typically enjoys warmer temperatures, with minimums around 17°C (63°F) and average highs reaching up to 27°C (82°F), while May starts cooler, featuring minimums of 10°C (50°F) and maximums of 23°C (73°F). Additionally, September sees a bit more rainfall, accumulating about 64 mm (2.5 in) over 17 days, compared to May’s 56 mm (2.2 in) over 11 days. Despite the differences in temperature and precipitation, both months share a similar humidity level of 81%. For more detailed insights into the weather during this time, you can check out Furnas weather in May.
In September, the weather tends to be warmer compared to June, featuring a minimum temperature of 17°C (63°F) and an average of 22°C (71°F), while June starts off cooler with a minimum of 12°C (54°F) and an average of 19°C (67°F). The maximum temperatures in September reach up to 27°C (82°F), which is slightly higher than June's peak of 26°C (79°F). Additionally, September experiences more precipitation, accumulating 64 mm (2.5 in) over 17 days, compared to June's 44 mm (1.7 in) over just 10 days. Both months share high humidity levels, with September at 81% and June slightly higher at 82%. For a closer look at June weather specifics, check out Furnas weather in June.
In comparing the weather of September and July, both months experience relatively mild temperatures, with September having a slightly warmer average of 22°C (71°F) compared to July's 21°C (70°F). However, September tends to be more humid, with humidity levels at 81% compared to July's 83%. The rainfall also differs significantly; September sees more precipitation with 64 mm (2.5 in) spread over 17 days, while July has only 25 mm (1.0 in) over 9 days, making it drier overall. For a more detailed look at July’s conditions, you can check out Furnas weather in July.
In comparing the weather between September and August, we notice that September experiences slightly cooler temperatures, with a minimum of 17°C (63°F) and an average of 22°C (71°F), compared to August's minimum of 18°C (65°F) and an average of 23°C (73°F). Both months share the same maximum temperature of 28°C (82°F). However, September sees increased precipitation, totaling 64 mm (2.5 in) over 17 days, while August has less rain at 48 mm (1.9 in) across 11 days. Interestingly, humidity levels remain consistent at 81% for both months. For more detailed insights into August weather, visit Furnas weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 27°C (82°F), with an average of 22°C (71°F), accompanied by relatively high humidity at 81%. The month also sees considerable precipitation, totaling 64 mm (2.5 in) over 17 days. In contrast, October experiences cooler temperatures, with minimums dropping to 14°C (57°F) and maximums peaking at 25°C (78°F), while the average temperature is 20°C (68°F). Although October has slightly more precipitation at 92 mm (3.6 in) across 14 days, the humidity remains lower at 79%. For more specific insights into October weather, you can refer to Furnas weather in October.
September and November display distinct weather characteristics. In September, temperatures are generally warmer, with a minimum of 17°C (63°F) and an average of 22°C (71°F), reaching up to 27°C (82°F). This month also experiences considerable humidity at 81%, alongside 64 mm (2.5 in) of precipitation over 17 days. In contrast, November sees cooler temperatures, with a minimum of 11°C (52°F) and an average of 17°C (63°F), peaking at 24°C (75°F). While November has slightly more precipitation at 87 mm (3.4 in), it falls over fewer days (12 days) and has a slightly lower humidity of 79%. For those interested in specific weather details for this time, check out Furnas weather in November.
In September, temperatures are warmer, with a minimum of 17°C (63°F) and an average of 22°C (71°F), peaking at 27°C (82°F). The month sees lower precipitation at 64 mm (2.5 in) over 17 days and a humidity level of 81%. In contrast, December brings cooler weather, with a minimum temperature of 10°C (50°F) and an average of 16°C (61°F), reaching a maximum of 20°C (69°F). December experiences higher precipitation at 109 mm (4.3 in) across 12 days and slightly increased humidity at 84%. For a deeper look into the conditions in December, you can check Furnas weather in December.
As September unfolds in Furnas, the weather begins to transition towards the cooler months, bringing with it a refreshing change from the sweltering summer days. With average temperatures settling around a mild 22°C (71°F), the warmth lingers, yet the noticeable increase in humidity (81%) and precipitation (64 mm over 17 days) introduces a more vibrant atmosphere, enveloping the landscape in lush greenery. This month often sees rain more frequently than its predecessors, making it a unique blend of summer's warmth and autumn's charm. For those eager to explore the exquisite climate of Furnas throughout the year, further insights can be found at Furnas Climate.