September Weather in Sal Rei, Cabo Verde

Last updated: August 21, 2025

September in Sal Rei, Cabo Verde offers warm and inviting weather, with maximum temperatures reaching 30°C (86°F) and an average of 27°C (80°F), providing the perfect backdrop for sun-soaked adventures. Evenings cool down to a comfortable minimum of 24°C (76°F), ensuring a pleasant atmosphere for relaxation. While this month sees 28 mm (1.1 in) of rainfall over approximately five days, the tropical humidity remains high at 84%, enhancing the lush landscapes that define this stunning destination. Embrace the vibrant climate of Sal Rei as you explore its natural beauty and local culture!

September Temperature in Sal Rei

As September arrives in Sal Rei, Cabo Verde, temperatures begin to rise, reflecting the transition into the tail end of summer. During this month, the minimum temperature hovers around 24°C (76°F), while the average temperature reaches a warm 27°C (80°F), peaking at a balmy 30°C (86°F). This trend marks a noticeable increase from August's highs, making September one of the hottest months of the year. The consistently warm climate invites beachgoers and outdoor enthusiasts to revel in the sunshine, providing the perfect backdrop for relaxation or adventure in this stunning archipelago. The pleasant warmth combined with the cooling ocean breezes creates an inviting atmosphere, ideal for those seeking both comfort and a taste of vibrant island life.

September Weather in Sal Rei: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sal Rei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sal Rei, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec727070717273757880797773
Data source: Temperature data for Sal Rei 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 Sal Rei

September marks a notable shift in precipitation patterns for Sal Rei, Cabo Verde, as the island experiences an increase in rainfall after the dry summer months. With 28 mm (1.1 in) of rainfall occurring over 5 days, this month supports the transition towards the wetter season. Although August typically sees the highest precipitation levels, September’s rainfall still represents a substantial quantity, showcasing a dramatic change from the preceding months when rainfall was nearly nonexistent. This uptick in moisture not only refreshes the landscape but also signals the approaching autumn, hinting at the shift in weather patterns that characterizes the region's climate.

September Precipitation Trends in Sal Rei

The chart displays monthly precipitation patterns in Sal Rei, 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. In Sal Rei, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec021000233281012
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sal Rei

In September, humidity in Sal Rei, Cabo Verde, remains relatively high at 84%, a slight dip from the previous month but still consistent with the tropical climate of the region. Throughout the year, the humidity shows a trend of gradually increasing from January's 75% to a peak of 85% in both April and the summer months before tapering off as the year progresses. This pattern highlights a humid environment that is characteristically stable, with only minor fluctuations. As autumn approaches, the humidity begins to decline, paving the way for a drier climate in the latter part of the year.

September Average Humidity in Sal Rei

This chart illustrates the average monthly humidity levels in Sal Rei, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Sal Rei is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%79%83%85%85%84%85%85%84%83%80%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sal Rei

In September, Sal Rei, Cabo Verde, continues to experience extreme UV levels, with a UV Index peaking at 13. This level signifies a notable consistency in the summer months, as both August and September share the same intense exposure category. With a rapid burn time of just 10 minutes, it's crucial for visitors and residents alike to take precautions against overexposure to the sun. Following a trend established earlier in the year, where the UV Index typically hovers between 10 and 13, September is no exception, highlighting the importance of sun safety amidst the beautiful Cabo Verdean sun. To stay informed about the UV Index throughout the year, check out Sal Rei UV Index.

Maximum UV Index Levels in Sal Rei for September

The chart shows the monthly maximum UV Index (UVI) for Sal Rei 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. In September, the maximum UV index in Sal Rei typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9101213121112131311109
Data source: Sal Rei 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 Sal Rei

As summer gently gives way to autumn, September in Sal Rei, Cabo Verde, enjoys a delightful average of 315 hours of sunshine. This marks a slight dip from the sun-soaked highs of 355 hours in May and the vibrant 336 hours in August, yet it remains luminous compared to the cooler months ahead. The trend showcases a gradual transition, where the sunshine hours decrease slightly while still offering abundant bright days. In the context of the year, September bridges the gap between the sun-drenched summer and the mellowed tones of autumn, making it perfect for those seeking both warmth and tranquility at this enchanting destination.

Monthly Sunshine Duration in Sal Rei: September Highlighted

The September sunshine duration represents the total number of hours Sal Rei 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.
JanFebMarAprMayJunJulAugSepOctNovDec242h283h334h335h355h334h326h336h315h322h293h286h
Data source: Sal Rei September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sal Rei During September

In Sal Rei, Cabo Verde, September presents a notable shift in weather patterns, as the likelihood of sunny days stands at 56%. This month offers a pleasant balance, falling in between the sunnier summer months of June (77%) and the more variable conditions of November (31%). While September doesn't boast the highest sunshine probability, it remains consistently favorable compared to the tail end of summer, providing visitors with a decent chance to bask in the sun. As autumn approaches, this gradual transition in weather can make September an appealing time to enjoy the island's stunning landscapes and vibrant culture.

Percentage of Sunny Days in September in Sal Rei

The chart illustrates the percentage of sunny days in Sal Rei 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 Sal Rei experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%64%61%63%64%77%59%50%56%65%31%45%
Data source: Sal Rei September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sal Rei in September

In Sal Rei, Cabo Verde, the September daylight duration showcases a delightful consistency, offering 12 hours of sunlight each day. This month aligns perfectly with the late summer and early autumn transition, maintaining the extended daylight that characterizes the peak of the year from June to August. As the year progresses, daylight gradually begins to shorten, dipping to 11 hours in October, signaling the impending change of seasons. Overall, September stands out as a reliable month for enjoying the sun, continuing a trend of ample daylight that enhances the allure of this beautiful destination.

Average Daylight Hours in Sal Rei for September

The chart illustrates the variation in daylight duration in Sal Rei throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 16m11h 36m12h 2m12h 29m12h 52m13h 3m12h 57m12h 37m12h 11m11h 44m11h 21m11h 10m
Data source: Sal Rei daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Sal Rei

As the summer fades, September in Sal Rei, Cabo Verde ushers in a gentle breeze with an average wind speed of 5.2 m/s (12 mph). This slight increase from the languid winds of August reflects the onset of the transitional season, where the tropical retreat begins to make way for more invigorating gusts. Prior to September, the wind had settled into a lull, peaking earlier in the year around January with speeds of 7.6 m/s (17 mph), and steadily declining through the peak summer months of July and August, which saw the lowest averages of 4.6 m/s (10 mph) and 4.5 m/s (10 mph), respectively. As the region approaches October, anticipation builds as winds are set to pick up again, hinting at an energetic change in the air, inviting adventurers and nature lovers alike to embrace the dynamic beauty of Cabo Verde.

Average September Wind Speed in Sal Rei

The chart displays monthly wind speed patterns in Sal Rei, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.68.17.97.56.96.54.64.55.2 m/s6.46.07.0
Data source: Sal Rei September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Sal Rei Compares to Other Months

Weather in Sal Rei varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sal Rei, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in September and January, September stands out as the warmer and more humid month. With temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), it averages around 27°C (80°F). Additionally, September experiences about 28 mm (1.1 in) of precipitation over five days, leading to a high humidity level of 84%. In contrast, January features cooler temperatures, with a minimum of 18°C (66°F) and a maximum of 26°C (80°F), averaging 22°C (72°F). Notably, January is much drier, with no recorded precipitation and lower humidity at 75%. For more detailed information, you can check out Sal Rei weather in January.

September in Sal Rei is characterized by warmer temperatures, with a minimum of 24°C (76°F) and averages reaching up to 27°C (80°F). The weather is quite humid at 84%, and there's modest precipitation of about 28 mm (1.1 in) spread over five days. In contrast, February presents a milder climate, with minimum temperatures dropping to 18°C (65°F) and an average of 21°C (71°F). This month sees significantly less rainfall, with only 2 mm (0.1 in) and no precipitation days, along with slightly lower humidity at 79%. For more details, you can check Sal Rei weather in February.

In comparing the weather between September and March, September tends to be warmer and more humid. With average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), it creates a distinctly tropical feel. Additionally, September experiences some precipitation, averaging 28 mm (1.1 in) over about 5 days, contributing to the humidity level of 84%. In contrast, March is milder, featuring average temperatures from a minimum of 18°C (65°F) to a maximum of 26°C (79°F), and it rarely sees rain, with only 1 mm (0.0 in) over 0 days, maintaining a slightly lower humidity of 83%. For those interested in detailed insights about March weather, you can check Sal Rei weather in March.

In comparing the weather between September and April, September tends to be warmer, with minimum temperatures around 24°C (76°F) and average highs reaching 30°C (86°F). Additionally, this month sees some rainfall, averaging 28 mm over about five days, and humidity levels are quite high at 84%. In contrast, April features cooler temperatures, with a minimum of 18°C (65°F) and maximums up to 26°C (79°F), and it boasts completely dry weather, receiving no precipitation throughout the month. The humidity in April remains slightly elevated at 85%. For more specific details about April weather in Sal Rei, you can visit Sal Rei weather in April.

When comparing the weather in September and May, September tends to be warmer, with average temperatures around 27°C (80°F) and highs reaching up to 30°C (86°F). In contrast, May has a milder average temperature of 22°C (72°F) and maximums of 26°C (80°F). September also sees a modest amount of precipitation, with about 28 mm (1.1 in) falling over five days, while May remains completely dry with no recorded precipitation. Humidity levels are quite similar, with September at 84% and May at 85%, creating a consistently humid atmosphere in both months. For a detailed look at May's weather, check out Sal Rei weather in May.

September typically presents warmer weather compared to June, with average temperatures rising from 23°C (74°F) in June to 27°C (80°F) in September. While both months share a similar humidity level of 84%, September experiences increased precipitation, averaging 28 mm (1.1 in) over about 5 days, unlike the completely dry weather in June, which has 0 mm of precipitation across 0 days. For more detailed insights on June weather, you can check Sal Rei weather in June.

In comparing the weather between September and July, September experiences warmer temperatures with an average of 27°C (80°F), peaking at 30°C (86°F), whereas July has a cooler average of 24°C (76°F) and a maximum of 28°C (83°F). Additionally, September is marked by increased precipitation, averaging 28 mm (1.1 in) over five days, in contrast to July's dry conditions, which see only 2 mm (0.1 in) across no rainy days. Both months maintain high humidity levels, with September at 84% and July slightly lower at 85%. For more detailed insights, you can check Sal Rei weather in July.

In comparing the weather between August and September, we notice a slight increase in temperature in September, with average temperatures reaching 27°C (80°F) compared to August's 26°C (78°F). September also sees higher maximum temperatures, peaking at 30°C (86°F) versus August's maximum of 29°C (85°F). Precipitation levels are slightly lower in September at 28 mm (1.1 in) over 5 days compared to August's 33 mm (1.3 in) over 4 days, despite a marginally higher humidity in August at 85% compared to 84% in September. For those interested in more details, you can check out Sal Rei weather in August.

September and October present a mild transition in weather conditions. In September, temperatures ranged from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), with an average of 27°C (80°F). This month saw a higher level of precipitation at 28 mm (1.1 in) over 5 days, coupled with relatively high humidity at 84%.

In contrast, October offers a slightly cooler average temperature of 26°C (80°F) and a maximum of 31°C (87°F), while maintaining the same minimum of 24°C (75°F). The month is characterized by significantly less rainfall, with only 10 mm (0.4 in) over just 1 day, and a slightly lower humidity of 83%. For more details on October weather, check out Sal Rei weather in October.

September typically features warmer temperatures, with an average of 27°C (80°F) and maximums reaching 30°C (86°F). The month also sees moderate rainfall, averaging 28 mm (1.1 in) spread over five days, along with a high humidity level of 84%. In contrast, November experiences slightly cooler temperatures, averaging 25°C (77°F) and peaking at 29°C (85°F). Notably, November is much drier, with only 1 mm (0.1 in) of precipitation and no rainy days, while humidity dips slightly to 80%. For a more detailed look at November's weather, check out Sal Rei weather in November.

September and December exhibit notable differences in weather patterns. In September, the temperatures are generally warmer, with a minimum of 24°C (76°F) and an average of 27°C (80°F), reaching a maximum of 30°C (86°F). The month also sees higher humidity at 84% and more frequent precipitation, averaging 28 mm (1.1 in) over about 5 days. In contrast, December enjoys milder temperatures, with a minimum of 20°C (68°F) and an average of 23°C (74°F), peaking at 28°C (82°F). This month features significantly less rainfall, totaling only 2 mm (0.1 in) over 0 days, along with a lower humidity level of 73%. For more specific insights on December weather, view the detailed forecast here: Sal Rei weather in December.

Compare Sal Rei's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Sal Rei

As September unfolds in Sal Rei, the weather brings a delightful blend of warmth and occasional rain, setting it apart from the drier months of the year. With average temperatures peaking at a comfortable 27°C (80°F), it offers a pleasant escape from the summer heat. The slight increase in humidity often adds a tropical touch, while the 28 mm of rain over just a few days keeps the landscape lush and vibrant. This month serves as a gentle transition toward the cooler, more settled climate of the upcoming autumn. For more details on how September fits into the yearly weather pattern, explore Sal Rei Climate.