September Weather in Ribeira Brava, Portugal

Last updated: February 24, 2025

September in Ribeira Brava, Portugal, offers a delightful blend of warm temperatures and refreshing sea breezes. The maximum temperature hovers around 27°C (81°F), while the average settles comfortably at 21°C (70°F). Nights cool down to a refreshing 17°C (63°F), providing perfect conditions for restful evenings. Although precipitation totals 18 mm (0.7 in) across 6 days, the overall humidity is relatively high at 81%, enveloping the area in a lush, tropical atmosphere. Visitors can enjoy pleasant days ideal for exploring the stunning coastal scenery while savoring the occasional refreshing shower.

September Temperature in Ribeira Brava

As summer fades into fall, Ribeira Brava, Portugal experiences a delightful transition in September, with temperatures remaining pleasantly warm. This month showcases a minimum of 17°C (63°F), aligning with the latter part of August, while the average temperature hovers around 21°C (70°F). As the days progress, the maximum temperature gently tapers to 27°C (81°F), still inviting for beachgoers and outdoor enthusiasts. Compared to the height of summer, September offers a comfortable climate, making it an ideal time for visitors to enjoy both the vibrant local culture and beautiful natural surroundings without the scorching heat. The gradual cooling hints at the upcoming autumn, yet it still feels like summer is lingering, creating a perfect balance for those seeking warmth and relaxation.

September Weather in Ribeira Brava: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ribeira Brava, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec585858596265687169676360
Data source: Temperature data for Ribeira Brava generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ribeira Brava

In September, Ribeira Brava experiences a modest precipitation of 18 mm (0.7 in), marking a subtle uptick from the exceedingly dry summer months of July and August, which recorded just 7 mm and 8 mm, respectively. With approximately 6 days of rainfall, September serves as a transitional month, as the region prepares for the wetter autumn ahead. This pattern reflects a gradual increase in rainfall, leading into October, which typically sees a significant rise to 57 mm (2.3 in) across about 10 days of precipitation. Overall, the data illustrates a clear trend of increasing moisture as the year progresses, setting the stage for the lush landscapes that characterize Ribeira Brava during the fall season.

September Precipitation Trends in Ribeira Brava

The chart displays monthly precipitation patterns in Ribeira Brava, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3860525623368818576758
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Ribeira Brava

In Ribeira Brava, Portugal, September heralds a slight dip in humidity, averaging around 81%, which is a step down from the peak levels of 83% recorded in both July and August. This transitional month reflects the gradual shift from the summer's steamy atmosphere towards the milder conditions of autumn. Notably, humidity levels generally rise from a comfortable 75% in the winter months of January and February, reaching their zenith during the summer. As the year progresses, September's humidity further illustrates this trend, hinting at nature's preparation for the cooler October, which settles at 80%. Overall, Ribeira Brava experiences a marked rhythm of humidity, with September sitting squarely in the balance between the sultry summer and the refreshing autumn air.

September Average Humidity in Ribeira Brava

This chart illustrates the average monthly humidity levels in Ribeira Brava, 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.
JanFebMarAprMayJunJulAugSepOctNovDec75%75%78%78%77%80%83%83%81%80%75%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ribeira Brava

As summer transitions to autumn in Ribeira Brava, Portugal, the UV Index begins to decline, yet remains significant. In September, the UV Index stands at 10, classifying it as very high with a burn time of just 15 minutes. This marks a gradual reduction from the peak extremes seen in the summer months, but vigilance is still crucial. Throughout the year, the UV levels exhibit a clear trend: rising from a moderate 4 in January to an extreme 12 by June, before tapering off again as winter approaches. This pattern underscores the importance of sun protection, even during early fall. For more detailed insights on UV levels, visit Ribeira Brava UV Index.

Maximum UV Index Levels in Ribeira Brava for September

The chart shows the monthly maximum UV Index (UVI) for Ribeira Brava 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.
JanFebMarAprMayJunJulAugSepOctNovDec468101112111110864
Data source: Ribeira Brava 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 Ribeira Brava

As the summer fades, September in Ribeira Brava, Portugal offers a delightful blend of warmth and sunshine, with an impressive 338 hours of sunlight illuminating the scenic vistas. This month marks a transition as the sun begins to set earlier, yet it still boasts significant brightness, rivaling the peak summer months. Interestingly, the sunshine hours decrease from the heights of July and August, while remaining notably higher than the winter months, creating a cozy atmosphere ideal for enjoying the lush landscapes and vibrant culture. With a gradual decline into October's 321 hours, September invites visitors to savor the lingering warmth before autumn makes its full entrance, ensuring that the beauty of Ribeira Brava remains captivating throughout the year.

Monthly Sunshine Duration in Ribeira Brava: September Highlighted

The September sunshine duration represents the total number of hours Ribeira Brava 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.
JanFebMarAprMayJunJulAugSepOctNovDec191h244h299h352h373h376h391h380h338h321h260h246h
Data source: Ribeira Brava September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ribeira Brava During September

In Ribeira Brava, Portugal, September marks a delightful transition where the summer sun begins to wane but remains prominent, boasting a 45% chance of sunny weather. This month is a refreshing contrast to the peak summer months of July and August, which enjoy higher probabilities of sun at 63% and 60%, respectively. As the year progresses into autumn, the likelihood of sunshine gradually stabilizes, with October slightly up to 50%. September’s weather strikes a balance, often offering warm days perfect for outdoor activities while hinting at the cooler, cloudier days ahead. Thus, it's an ideal time for visitors to savor the lingering summer warmth in this picturesque coastal town.

Percentage of Sunny Days in September in Ribeira Brava

The chart illustrates the percentage of sunny days in Ribeira Brava 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 Ribeira Brava experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%44%43%38%44%43%63%60%45%50%37%32%
Data source: Ribeira Brava September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ribeira Brava in September

As summer gently transitions into autumn, September in Ribeira Brava, Portugal, offers a delightful 12 hours of daylight. This marks a slight decrease from the robust 13 hours experienced in August, reflecting the gradual retreat of summer’s long days. Throughout the year, the region showcases a clear pattern: daylight peaks in June and July with an impressive 14 hours, while the winter months of November and December are accompanied by the shortest days, each providing only 10 hours. The trend illustrates a rhythmic ebb and flow of daylight, enhancing the charm of Ribeira Brava's coastal landscape as it prepares for the cozy embrace of fall.

Average Daylight Hours in Ribeira Brava for September

The chart illustrates the variation in daylight duration in Ribeira Brava throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 15m11h11h 59m13h13h 50m14h 15m14h 2m13h 17m12h 19m11h 19m10h 27m10h
Data source: Ribeira Brava daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ribeira Brava

As summer transitions into autumn, the winds in Ribeira Brava in September offer a gentle embrace, with an average speed of 2.8 m/s (6 mph). This slight dip from the more robust gusts often experienced in the earlier months reflects a seasonal trend: after peaking in the warmer months of July and June, the winds begin to ease. Interestingly, September's conditions mirror those of January and August, creating a consistent, calming atmosphere perfect for leisurely strolls along the coast. As the year progresses, the winds gradually shift, with October seeing a further decrease, yet November welcomes the return of stronger breezes at 2.9 m/s (7 mph), hinting at the dynamic nature of Ribeira Brava's climate as it prepares for the winter months.

Average September Wind Speed in Ribeira Brava

The chart displays monthly wind speed patterns in Ribeira Brava, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.93.22.73.03.13.22.72.8 m/s2.52.93.4
Data source: Ribeira Brava September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ribeira Brava Compares to Other Months

The weather in Ribeira Brava 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 Ribeira Brava and find detailed weather information for every month.

In September, the weather is generally warmer, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 27°C (81°F), creating a pleasant and inviting atmosphere. The month sees relatively low precipitation, with only 18 mm (0.7 in) over an average of 6 days, and humidity levels are higher at 81%. In contrast, January offers cooler temperatures, with an average range from a minimum of 9°C (49°F) to a maximum of 22°C (71°F). While it experiences slightly more rainfall, totaling 38 mm (1.5 in) over about 7 days, humidity is a bit lower at 75%. For more details on January weather in Ribeira Brava, you can check this link: Ribeira Brava weather in January.

September offers a warmer climate with average temperatures ranging from 17°C (63°F) at night to a comfortable 27°C (81°F) during the day, accompanied by low precipitation at 18 mm (0.7 in) over just six days. In contrast, February brings cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 22°C (72°F), along with significantly higher rainfall of 60 mm (2.4 in) across nine days. Despite the drop in temperature, February maintains moderate humidity levels at 75%, compared to September's higher humidity of 81%. For more specific details on February weather, you can check Ribeira Brava weather in February.

September typically offers warmer temperatures, with a minimum of 17°C (63°F) and an average high of 27°C (81°F), making it a pleasant month with relatively low precipitation of 18 mm (0.7 in) over 6 days. In contrast, March experiences cooler weather, with temperatures dipping to a minimum of 8°C (47°F) and averaging 14°C (58°F), though it can reach a maximum of 24°C (76°F). March also sees more rainfall, totaling 52 mm (2.1 in) over 9 days, and a slightly lower humidity level of 78%. For more details about March weather, you can check Ribeira Brava weather in March.

When comparing the weather in September to that of April, it's evident that September enjoys warmer temperatures, with averages around 21°C (70°F) and highs reaching 27°C (81°F), while April typically sees cooler averages of 15°C (60°F) and maximums of 23°C (74°F). Additionally, September experiences significantly lower precipitation, with only 18 mm (0.7 in) over about 6 days, contrasting with April's wetter conditions, where 56 mm (2.2 in) falls over approximately 12 days. Humidity levels are relatively similar, with September at 81% and April slightly lower at 78%. For more detailed insights on April's weather, you can visit Ribeira Brava weather in April.

In comparing the weather patterns of September and May, September tends to be warmer, featuring an average temperature of 21°C (70°F) compared to May's cooler average of 17°C (62°F). The maximum temperatures in September also reach higher levels, peaking at 27°C (81°F), while May sees a maximum of 26°C (78°F). Precipitation levels are somewhat lower in September at 18 mm (0.7 in) versus May's 23 mm (0.9 in), although both months experience rainfall on approximately six days. Additionally, humidity levels are slightly higher in September at 81%, compared to 77% in May. For more detailed information, you can check Ribeira Brava weather in May.

In comparing the weather of September and June, September tends to be warmer, with average temperatures of 21°C (70°F) compared to June's 18°C (65°F). The maximum temperature in September reaches up to 27°C (81°F), whereas June peaks at 26°C (79°F). Precipitation is generally lower in September with only 18 mm (0.7 in) over 6 days, compared to June's 36 mm (1.4 in) spread over 7 days. Both months experience high humidity, but September slightly edges out with 81% compared to June's 80%. For further specifics on June weather, check out Ribeira Brava weather in June.

When comparing the weather in September to that in July, we notice some distinct differences. September tends to be slightly warmer, with an average temperature of 21°C (70°F), compared to July's average of 20°C (68°F). Both months experience maximum temperatures around 27°C (81°F to 82°F), but September sees a higher minimum temperature of 17°C (63°F) compared to July's 16°C (62°F). Additionally, September is wetter, with 18 mm (0.7 in) of precipitation over 6 days, while July is much drier, only receiving 7 mm (0.3 in) of rain over just 1 day. Humidity levels are relatively similar, with September at 81% and July at 83%. For a closer look at July's weather specifics, you can check this link: Ribeira Brava weather in July.

In comparing the weather of September and August, we observe some notable differences. Both months share similar minimum temperatures at 17°C (63°F) and average temperatures around 21°C (70°F), but August typically experiences warmer maximum temperatures, peaking at 29°C (84°F), compared to September's 27°C (81°F). Furthermore, September sees an increase in precipitation, with 18 mm (0.7 in) over 6 days, while August has a drier climate with only 8 mm (0.3 in) across just 2 days. Humidity levels are relatively similar, hovering around 81% in September and 83% in August. For a more detailed look at the weather conditions in August, you can visit Ribeira Brava weather in August.

September generally offers warmer temperatures with an average of 21°C (70°F) and a maximum of 27°C (81°F), while October sees a slight decrease in the average to 20°C (67°F) but can still reach a maximum of 28°C (82°F). While September experiences less precipitation at 18 mm (0.7 in) over 6 days, October brings significantly more rain, totaling 57 mm (2.3 in) over 10 days. Humidity levels remain similar, with September at 81% and October just a touch lower at 80%. For a more detailed look at October weather, you can check Ribeira Brava weather in October.

In comparing the weather of September and November, September enjoys warmer temperatures, with a minimum of 17°C (63°F) and an average of 21°C (70°F), while November sees a drop in the minimum temperature to 10°C (51°F) and an average of 17°C (63°F). Although both months feature a maximum temperature of around 26-27°C (79-81°F), November experiences significantly more precipitation, with 67 mm (2.6 in) falling over 15 days compared to just 18 mm (0.7 in) over 6 days in September. Humidity levels are slightly lower in November, at 75%, compared to September's 81%. For more detailed information, you can check Ribeira Brava weather in November.

September and December present quite different weather patterns. September enjoys milder temperatures, with a minimum of 17°C (63°F) and an average of 21°C (70°F), reaching a maximum of 27°C (81°F). In contrast, December is cooler, featuring minimum temperatures of 10°C (51°F) and an average of 16°C (61°F), peaking at 21°C (70°F). September experiences less rainfall, with only 18 mm (0.7 in) over about 6 days, while December sees significantly increased precipitation at 58 mm (2.3 in) across 11 days. Humidity levels are also slightly lower in December at 75% compared to September's 81%. For more information on December weather, check out Ribeira Brava weather in December.

Compare Ribeira Brava's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ribeira Brava

As September unfolds in Ribeira Brava, the weather presents a pleasantly mild transition from the intensity of summer. With temperatures averaging around 21°C (70°F), it’s a delightful time to explore the vibrant landscapes, as the heat subsides yet remains warm enough for outdoor activities. Unlike the wetter winter months, September brings a modest 18 mm of rain over a few days, allowing for ample sunshine while keeping the lush greenery vibrant. The humidity remains relatively high at 81%, which adds a refreshing feel to the atmosphere. Overall, September stands out as a perfect blend of warmth and comfort, making it an ideal time to experience the beauty of Madeira. For more details on what you can expect throughout the year, check out Ribeira Brava Climate.