Last updated: February 24, 2025
In September, Ericeira, Portugal, experiences a pleasant transition into autumn, characterized by a maximum temperature of 24°C (75°F) and an average of 18°C (65°F), offering refreshing warmth for both locals and visitors. The weather remains largely enjoyable, with just two days of light precipitation totaling 32 mm (1.3 in), ensuring ample opportunities for outdoor activities. Humidity levels hover around 67%, adding to the comfortable nuances of the coastal climate. This delightful mix of temperatures and minimal rainfall makes Ericeira an appealing destination for those looking to enjoy the beauty of the Portuguese coast during this time of year.
In September, Ericeira, Portugal, welcomes a delightful transition as summer begins to ease into autumn. With temperatures ranging from a minimum of 15°C (59°F) to a comfortable maximum of 24°C (75°F), the weather is ideal for both beach days and exploring the charming coastal town. The average temperature settles at around 18°C (65°F), mirroring the pleasant warmth of August but without the intense heat, making it a prime time for outdoor activities. As the month progresses, you’ll notice that the evenings start to cool down, hinting at the refreshingly crisp air of fall on the horizon. Visitors can revel in the lingering summer vibes while enjoying a more tranquil atmosphere that September brings.
In September, Ericeira experiences a gentle transition from the dry summer months to the slightly wetter autumn season. With precipitation totaling 32 mm (1.3 in) over just two days, September marks a noticeable increase from the nearly dry summer, although it remains relatively light. This uptick indicates the preparation for the wetter months ahead, especially as October looms with its average of 63 mm (2.5 in) expected over six days. The gradual rise in rainfall not only enriches the landscape but also rejuvenates the local climate, hinting at the vibrant changes nature will soon unveil as the region gears up for the fall.
As summer transitions to autumn in Ericeira, Portugal, September brings a notable shift in humidity levels, averaging around 67%. This marks a slight increase from the drier months of July and August, which both enjoy a lower humidity of 60%. However, it still remains significantly lower than the winter months, where humidity levels soar to over 80% in November and December. This gradual rise in September's humidity is a precursor to the wetter conditions ahead, as the coastal town prepares for the lush landscapes characteristic of autumn. Overall, September strikes a balance, offering a refreshing change while hinting at the more humid months to come.
As summer transitions to autumn in Ericeira, Portugal, the UV Index shows a gradual decline in exposure levels. In September, the UV Index reaches 8, categorizing it as very high with a burn time of just 15 minutes, indicating that even as the warm weather wanes, caution is still necessary when spending time outdoors. This reduction follows a peak in June at 11, transitioning through July and August, where it remained notably high. The pattern reflects nature's cycle, reminding us to be mindful of sun safety as we enjoy the early signs of fall. For more detailed insights, check out Ericeira UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Ericeira, Portugal still basks in a generous 349 hours of sunshine, offering a delightful retreat for sun-seekers. Following the peak of July, which shines with a dazzling 420 hours, the sun's embrace remains warm yet gentle, gradually yielding to the crispness of October. Compared to the vibrant summer months, September reflects a slight decrease in sunlight, yet it maintains a balance that ensures plenty of opportunity for beach outings and outdoor adventures. This month serves as a perfect bridge, allowing visitors to enjoy the lingering warmth while the crowds start to thin, making it an ideal time to experience the beauty of Ericeira’s coastline.
In September, Ericeira, Portugal, enjoys a notably high chance of sunny weather, with a 63% likelihood of sunshine that reflects a consistent trend of brightening skies as summer draws to a close. This marks one of the sunniest months of the year, just slightly behind the peak summer months of July and August, which boast probabilities of 64% and 61%, respectively. The transition into autumn does not significantly diminish the sunny disposition, as October holds a respectable 54% chance of clear days, suggesting that visitors can still bask in the warm coastal charm well into the fall. As such, September stands out as a delightful time to experience Ericeira's beaches and vibrant culture under mostly sunny skies.
As summer fades into autumn, September in Ericeira, Portugal, offers a delightful transition with around 12 hours of daylight. This marks a subtle yet significant decrease from the sun-drenched months of June, July, and August, each basking in a full 14 hours of light. While the days begin to shorten, the lingering warmth of summer ensures that September still offers ample opportunity for outdoor adventures and beach escapades. Following this month, daylight will gradually wane further as October brings 11 hours of light, hinting at the coming winter months. This rhythm of changing daylight not only signifies the shift in seasons but also invites residents and visitors alike to savor each precious hour under the sun before the shorter days of autumn set in.
In September, Ericeira, Portugal, experiences a gentle transition in its wind patterns, with an average wind speed of 5.4 m/s (12 mph). This marks a notable reduction from the breezy July and August months, where winds were consistently around 6.0 to 6.7 m/s (13-15 mph). As summer wanes, the cooling gusts prepare the landscape for autumn, averaging lower than the earlier months but still offering suitable conditions for outdoor activities. This trend of diminishing winds continues into October, which sees an even further decline to 5.0 m/s (11 mph), signaling a shift towards the calmer days of fall. As September unfolds, the serene breezes create a perfect backdrop for enjoying the stunning coastal scenery and vibrant local culture of this charming Portuguese town.
The weather in Ericeira 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 Ericeira and find detailed weather information for every month.
In September, the weather is generally mild with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 24°C (75°F), averaging around 18°C (65°F). The month sees relatively low precipitation, with only about 32 mm (1.3 in) falling over just 2 days and humidity levels at 67%. In contrast, January presents a cooler climate, with temperatures dipping to a minimum of 7°C (45°F) and averaging 13°C (55°F), peaking at 18°C (64°F). This month experiences higher precipitation at 48 mm (1.9 in) spread over 7 days, alongside increased humidity at 85%. For a detailed look at what to expect, check out Ericeira weather in January.
September and February present quite distinct weather patterns. In September, temperatures are generally milder, with a minimum of 15°C (59°F) and an average of 18°C (65°F), peaking at 24°C (75°F). The month experiences relatively low precipitation, totaling 32 mm (1.3 in) over just 2 days, accompanied by a moderate humidity level of 67%. In contrast, February sees cooler temperatures with a minimum of 9°C (48°F) and an average of 13°C (56°F), reaching a maximum of 17°C (63°F). It is also considerably wetter, with precipitation reaching 63 mm (2.5 in) over 9 days and higher humidity at 75%. For more details on February's climate in this region, you can check Ericeira weather in February.
When comparing the weather in September and March, it is evident that September tends to be warmer and drier. In September, temperatures range from a minimum of 15°C (59°F) to a maximum of 24°C (75°F), with an average of 18°C (65°F) and only 32 mm (1.3 in) of precipitation over just 2 days. In contrast, March is cooler, with temperatures varying from 9°C (48°F) to 19°C (66°F) and an average of 13°C (56°F). It is also wetter in March, receiving 69 mm (2.7 in) of precipitation spread over 9 days. Additionally, March's humidity is slightly higher at 72% compared to September's 67%. For more details, you can check Ericeira weather in March.
When comparing the weather in September and April, September tends to be warmer with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 24°C (75°F), while April features cooler conditions with temperatures between 9°C (49°F) and 21°C (69°F). Additionally, September experiences less precipitation, with only 32 mm (1.3 in) over approximately 2 days, whereas April sees significantly more rain, totaling 77 mm (3.0 in) over about 12 days. Humidity levels are similar in both months, hovering around 67% in September and 70% in April. For a detailed look at April weather, you can check Ericeira weather in April.
When comparing the weather in September to that of May, we see that September tends to be slightly warmer, with average temperatures of 18°C (65°F) compared to May's 16°C (61°F). Both months can reach a maximum of 24°C (75°F and 76°F respectively), but September enjoys a higher minimum temperature of 15°C (59°F) versus May's 11°C (52°F). Precipitation is also noteworthy: September experiences less rainfall with only 32 mm (1.3 in) over just 2 days, while May sees 39 mm (1.5 in) spread across 4 days. Additionally, humidity levels are quite similar, with September at 67% and May slightly higher at 70%. For more specific insights on May weather in this region, check out Ericeira weather in May.
In comparing the weather of September and June, September tends to be slightly warmer, with an average temperature of 18°C (65°F) compared to June's 17°C (62°F). The maximum temperatures are also higher in September, reaching 24°C (75°F), while June peaks at 21°C (71°F). Regarding precipitation, September has 32 mm (1.3 in) over just 2 days, which is considerably more than June's 16 mm (0.6 in) across 4 days. Humidity levels are fairly similar, with September at 67% and June at 63%. For those interested in specific June weather patterns, you can find more details here: Ericeira weather in June.
In comparing the weather of September and July, we can observe some interesting differences. September typically experiences a slightly wider temperature range, with average temperatures hovering around 18°C (65°F) and maximums reaching up to 24°C (75°F). In contrast, July offers a somewhat cooler maximum temperature of 22°C (72°F), although both months have the same minimum temperature of around 15°C (59°F). While September sees more precipitation at 32 mm (1.3 in) over two days, July remains notably dry, with just 6 mm (0.2 in) of rain and no rainy days at all. Additionally, humidity is higher in September at 67%, compared to July’s 60%. For a detailed look at July's weather, you can visit Ericeira weather in July.
In comparing the weather between August and September, we see a slight drop in temperatures, with September recording a minimum of 15°C (59°F) compared to August's 16°C (61°F). Both months share an average temperature of around 18°C (65°F), but September tends to be a bit warmer at its maximum, reaching 24°C (75°F) versus August's 23°C (73°F). Precipitation levels in September are notably higher at 32 mm (1.3 in) over 2 days, while August has a much drier profile with only 6 mm (0.2 in) of rain over just 1 day. Furthermore, September experiences a higher humidity level of 67% compared to August’s 60%. For a closer look at the weather specifics, you can visit this link: Ericeira weather in August.
In September, the weather features mild temperatures with a minimum of 15°C (59°F), an average of 18°C (65°F), and a maximum of 24°C (75°F), alongside low precipitation levels of 32 mm (1.3 in) over just 2 days. The humidity stands at a comfortable 67%. In contrast, October experiences slightly cooler temperatures with a minimum of 11°C (51°F), an average of 17°C (63°F), and the same maximum of 24°C (75°F), but it brings a significant increase in precipitation to 63 mm (2.5 in) distributed over 6 days, and higher humidity levels at 74%. For a more detailed overview of October's weather, check out Ericeira weather in October.
September weather is generally milder, with average temperatures around 18°C (65°F) and maximums reaching up to 24°C (75°F). The month experiences relatively low precipitation, with just 32 mm (1.3 in) over about 2 days, and humidity levels at 67%. In contrast, November sees a significant drop in temperatures, with an average of 15°C (60°F) and maximums around 20°C (67°F). However, the month is much wetter, receiving 99 mm (3.9 in) of rain over approximately 12 days, and the humidity rises to 83%. For a detailed look at November weather, you can visit Ericeira weather in November.
September and December exhibit quite different weather patterns. In September, temperatures range from a mild minimum of 15°C (59°F) to a pleasant maximum of 24°C (75°F), with an average of 18°C (65°F). The month sees relatively low precipitation, with just 32 mm (1.3 in) over only 2 days, and humidity levels around 67%. In contrast, December brings cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 17°C (63°F), averaging at 14°C (58°F). The month is wetter, with precipitation totaling 82 mm (3.2 in) across 11 days, and higher humidity levels at 85%. For a more detailed look at December conditions, you can visit Ericeira weather in December.
As summer transitions to fall, September in Ericeira brings a delightful blend of warmth and mildness, offering a refreshing departure from the peak heat of the preceding months. With average temperatures hovering around a comfortable 18°C, visitors can enjoy pleasant days softened by gentle breezes. Rainfall is minimal, typically gracing the area for just a couple of days, ensuring the landscape remains vibrant without the dampness that often accompanies the winter months. Humidity levels sit at a moderate 67%, creating a cozy atmosphere perfect for exploring the coastal beauty. For more insights on Ericeira's climate throughout the year, check out Ericeira Climate.