September Weather in Mindelo, Cabo Verde

Last updated: August 21, 2025

September in Mindelo, Cabo Verde offers a delightful coastal climate characterized by mild temperatures that range from a minimum of 23°C (73°F) to a comfortable maximum of 26°C (80°F), with an average temperature of 25°C (77°F). While the month welcomes some variability, bringing about 37 mm (1.5 in) of rainfall spread over 5 days, the humidity remains relatively high at 84%, creating a warm and inviting atmosphere. Whether you're exploring the vibrant local culture or enjoying the stunning landscapes, September presents a pleasant environment for both relaxation and adventure.

September Temperature in Mindelo

In September, Mindelo, Cabo Verde, basks in the warm embrace of late summer, with temperatures steadily climbing. The minimum temperature rises to a comfortable 23°C (73°F), while the average hovers at a pleasant 25°C (77°F), peaking with a maximum of 26°C (80°F). This marks a notable increase from previous months, mirroring the broader trend of rising temperatures as summer transitions to autumn. As the days grow warmer, the evenings remain deliciously mild, offering the perfect backdrop for enjoying Mindelo's vibrant culture and stunning coastal vistas. Whether you're lounging at the beach or exploring local markets, the inviting warmth of September makes for an unforgettable experience in this paradise.

September Weather in Mindelo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mindelo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mindelo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec696867687071727577767471
Data source: Temperature data for Mindelo 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 Mindelo

In Mindelo, Cabo Verde, September marks a notable shift in the weather as it experiences its highest precipitation of the year, with 37 mm (1.5 in) of rainfall spread over five days. This increase follows a gradual rise from the arid conditions of earlier months, where rainfall was scant—January through August recorded minimal amounts, with August being the precursor to September's deluge at 24 mm (1.0 in). The transition into September not only signifies a peak in rainfall but also highlights a crucial change in the region’s dry season patterns. As the rain pours down, it rejuvenates the landscape, making it a pivotal month for both ecology and local agriculture.

September Precipitation Trends in Mindelo

The chart displays monthly precipitation patterns in Mindelo, 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 Mindelo, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec27311282437645
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mindelo

In Mindelo, Cabo Verde, September ushers in a slight dip in humidity, settling at 84%, down from the peak summer months of 85% in both July and August. This subtle decline signals a transition towards the cooler months, as the humidity begins to pave the way for the refreshing changes of autumn. Notably, the trend shows that humidity levels generally rise from early in the year, starting at 77% in January and peaking at 85% during the height of summer. As the year progresses, humidity gradually decreases once more, concluding with drier months in December, showcasing Cabo Verde's rhythmic climatic patterns. This natural ebb and flow of moisture in the air creates a unique atmosphere that is both lively and comfortable for locals and visitors alike.

September Average Humidity in Mindelo

This chart illustrates the average monthly humidity levels in Mindelo, 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 Mindelo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%79%82%85%84%83%85%85%84%83%81%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mindelo

In September, Mindelo, Cabo Verde, experiences an extremely high UV Index of 13, with a burn time of just 10 minutes, consistent with the intense sunlight characteristic of the preceding months. Unlike the milder conditions found in the late fall and winter months, the relentless UV levels indicate a region where sun safety is paramount year-round. Notably, September marks the tail end of the high UV season, maintaining the elevated values seen from April through August. As visitors and locals alike bask in the warm sun, it's essential to stay vigilant about sun protection. For updated UV information, check out Mindelo UV Index.

Maximum UV Index Levels in Mindelo for September

The chart shows the monthly maximum UV Index (UVI) for Mindelo 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 Mindelo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911121313121213131199
Data source: Mindelo 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 Mindelo

September in Mindelo, Cabo Verde, continues the trend of abundant sunshine, boasting 320 hours of glorious daylight. As summer transitions into fall, the sunny days remain plentiful, falling just shy of the peak summer months of May and August, which each exceeded 330 hours. This month exemplifies the region's robust light pattern, showing a slight dip from the summer peak yet still offering ample opportunities for sun-soaked adventures. Following closely behind, October maintains this radiant ambiance, promising 321 hours of sun. Overall, the data indicates a distinctively sunny year, with Mindelo delightfully illuminated from January's 238 hours to the vibrant May heights, illustrating the continuity of its inviting coastal charm well into autumn.

Monthly Sunshine Duration in Mindelo: September Highlighted

The September sunshine duration represents the total number of hours Mindelo 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.
JanFebMarAprMayJunJulAugSepOctNovDec238h272h324h328h349h323h326h338h320h321h296h283h
Data source: Mindelo September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mindelo During September

In Mindelo, Cabo Verde, September sees a fairly optimistic 55% chance of sunny weather, allowing for a delightful blend of sun and shade as the summer season transitions into fall. This percentage reflects a slight dip from the peak summer months, but it's still a noticeable improvement over the cooler months that follow. As you wander the vibrant streets or relax on the stunning beaches, it's worth noting that September continues a trend of relatively favorable weather—with chances of sunshine being noticeably higher than in the later months of the year. If you're seeking a sun-soaked getaway, this month presents a lovely opportunity to enjoy Cabo Verde's beauty before the clouds begin to dominate the winter sky.

Percentage of Sunny Days in September in Mindelo

The chart illustrates the percentage of sunny days in Mindelo 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 Mindelo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%74%58%57%66%70%58%52%55%71%35%49%
Data source: Mindelo September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mindelo in September

In Mindelo, Cabo Verde, the rhythm of daylight unfolds gracefully throughout the year. Starting from 11 hours in January and February, the days gradually lengthen, reaching a peak with 13 hours in both June and July. As summer wanes, daylight returns to 12 hours in September, echoing the long days of earlier months. This trend of maximizing sunlight during the heart of summer provides a vibrant backdrop for the island's activities, before a gentle decline begins again in October, when daylight decreases to 11 hours. The cyclical nature of daylight not only marks the passage of time but also shapes the island's lively culture and serene landscapes.

Average Daylight Hours in Mindelo for September

The chart illustrates the variation in daylight duration in Mindelo throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 13m11h 34m12h 2m12h 31m12h 55m13h 6m13h12h 39m12h 12m11h 43m11h 19m11h 7m
Data source: Mindelo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Mindelo

As September unfolds in Mindelo, Cabo Verde, the gentle breezes begin to shift from the more vigorous gusts of summer. With an average wind speed of 6.8 m/s (15 mph), this month marks a subtle uptick from the languid winds of August, hinting at the transitional dance between the warmer months and the forthcoming autumn. Notably, wind speeds are significantly lower from July through August, where they dip to around 6.2 m/s (14 mph), showcasing a seasonal trend towards calmer conditions. However, as the island embraces September, the winds offer a refreshing reprieve, preparing for a gradual ascent into the slightly brisker autumn winds ahead. This interplay of breezes creates an enchanting atmosphere, ideal for both exploration and relaxation, as the island's vibrant culture continues to thrive in harmony with nature's rhythms.

Average September Wind Speed in Mindelo

The chart displays monthly wind speed patterns in Mindelo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.59.38.98.28.18.16.26.16.8 m/s7.76.78.1
Data source: Mindelo September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Mindelo Compares to Other Months

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

In September, the weather is notably warmer, featuring a minimum temperature of 23°C (73°F) and an average of 25°C (77°F), with maximums reaching 26°C (80°F). This month experiences moderate rainfall, with 37 mm (1.5 in) spread over five days and a high humidity level of 84%. In contrast, January brings cooler temperatures, with a minimum of 18°C (64°F), an average of 20°C (69°F), and a maximum of 23°C (74°F). Additionally, January is much drier, recording only 1 mm (0.1 in) of precipitation over zero days and a slightly lower humidity of 77%. For more details, check out Mindelo weather in January.

September and February present distinct weather patterns in terms of temperature and precipitation. In September, the warm temperatures range from a minimum of 23°C (73°F) to a maximum of 26°C (80°F), with an average of 25°C (77°F). This month also records a relatively high humidity level of 84% and experiences approximately 37 mm (1.5 in) of rainfall over about 5 days. In contrast, February offers cooler temperatures, with a minimum of 17°C (64°F) and a maximum of 23°C (74°F), resulting in a lower average of 20°C (68°F). Additionally, February is much drier, with only 7 mm (0.3 in) of rain falling on just one day and a humidity level of 79%. For more details on February weather, you can visit Mindelo weather in February.

In September, the weather tends to be warmer with minimum temperatures around 23°C (73°F) and maximum temperatures reaching 26°C (80°F), averaging 25°C (77°F). This month also experiences more precipitation, with 37 mm (1.5 in) falling over approximately five days, contributing to a humidity level of 84%. In contrast, March is cooler, boasting a minimum temperature of 18°C (64°F) and a maximum of 22°C (71°F), with an average of 19°C (67°F). Notably, March sees significantly less precipitation—only 3 mm (0.1 in) over zero days—resulting in slightly lower humidity at 82%. For more details, you can check Mindelo weather in March.

In September, temperatures average a warm 25°C (77°F) with a minimum of 23°C (73°F) and a maximum of 26°C (80°F). The month sees some rainfall, with an average precipitation of 37 mm (1.5 in) over about five days, maintaining a high humidity level of 84%. In contrast, April features cooler temperatures, averaging around 20°C (68°F), with a minimum of 17°C (64°F) and a maximum of 22°C (72°F). Remarkably, April experiences very little rainfall, with only 1 mm (0.1 in) and no rainy days, while also holding the same humidity level of 84%. For more detailed insights, check Mindelo weather in April.

September and May present distinct weather characteristics. In September, temperatures are warmer, with a minimum of 23°C (73°F) and an average of 25°C (77°F), while May offers slightly cooler conditions, boasting a minimum of 19°C (66°F) and an average of 21°C (70°F). September also sees more precipitation, with 37 mm (1.5 in) over five days, compared to May's virtually dry spell of only 1 mm (0.0 in) over no rainy days. Humidity levels remain similar, with September at 84% and May at 83%. For detailed weather insights specific to May, you can visit Mindelo weather in May.

In June, the weather is slightly cooler with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 24°C (76°F), and the average temperature resting at 22°C (71°F). This month experiences very little rainfall, with just 2 mm (0.1 in) over zero days, leading to a humidity of 83%. In contrast, September brings warmer conditions, with temperatures ranging from 23°C (73°F) to a maximum of 26°C (80°F), and an average of 25°C (77°F). However, it also sees increased precipitation of 37 mm (1.5 in) over five days, resulting in a slightly higher humidity level of 84%. This makes September feel more humid and wetter compared to the drier, cooler days of June. For more detailed information, you can check Mindelo weather in June.

In comparing the weather between September and July, September tends to be warmer with minimum temperatures around 23°C (73°F) and an average of 25°C (77°F), while July has slightly cooler temperatures with a minimum of 20°C (68°F) and an average of 22°C (73°F). The maximum temperatures in September reach up to 26°C (80°F), compared to 25°C (77°F) in July. Precipitation also varies significantly; September experiences more rainfall with 37 mm (1.5 in) over 5 rainy days, while July is much drier, receiving only 8 mm (0.3 in) on just 1 day. Humidity levels are fairly similar, with September at 84% and July at 85%. For a more detailed look at July weather, you can visit Mindelo weather in July.

September experiences slightly warmer temperatures compared to August, with an average of 25°C (77°F) compared to August's 24°C (75°F). The minimum temperatures are also higher in September, averaging at 23°C (73°F) versus 21°C (71°F) in August. Both months see a maximum temperature of 26°C (79°F in August and 80°F in September), indicating consistent warmth. However, September receives more precipitation at 37 mm (1.5 in) over 5 days, compared to August's 24 mm (1.0 in) over the same number of days. Humidity levels are quite similar, with September at 84% and August at 85%. For more details on August weather, check out Mindelo weather in August.

In comparing the weather of September and October, both months display warm temperatures, with September showing a slightly higher average of 25°C (77°F) compared to October's 24°C (76°F). However, October experiences a marginal increase in maximum temperatures, reaching up to 27°C (80°F), compared to September's high of 26°C (80°F). Precipitation significantly decreases from 37 mm (1.5 in) over 5 days in September to just 6 mm (0.2 in) with no rainy days in October, resulting in drier conditions. Humidity remains fairly consistent, slightly dropping from 84% in September to 83% in October. For more details, you can visit Mindelo weather in October.

In September, the weather is relatively warm, with average temperatures ranging from a minimum of 23°C (73°F) to a maximum of 26°C (80°F). The month experiences more frequent precipitation, totaling 37 mm (1.5 in) over about five days, coupled with high humidity levels at 84%. In contrast, November sees slightly cooler temperatures, with averages between 21°C (70°F) and 25°C (78°F). It boasts a much drier climate, bringing only 4 mm (0.2 in) of precipitation across zero rainy days and slightly lower humidity at 81%. For more detailed information, check out Mindelo weather in November.

September weather is characterized by warmer temperatures, with a minimum of 23°C (73°F) and an average of 25°C (77°F), peaking at a maximum of 26°C (80°F). The month receives a considerably higher amount of precipitation, recording 37 mm (1.5 in) over about five days, and maintains a high humidity level of 84%. In contrast, December experiences milder conditions, with a minimum temperature of 19°C (66°F) and an average of 21°C (71°F), reaching a maximum of 24°C (76°F). Precipitation in December drops significantly to just 5 mm (0.2 in), occurring on only one day, and humidity levels are slightly lower at 77%. For more detailed information, you can visit Mindelo weather in December.

Compare Mindelo's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Mindelo

As September rolls in, Mindelo experiences a delightful balance of warmth and refreshing breezes, making it a standout month in comparison to the hotter summer season. With average temperatures hovering around a comfortable 25°C (77°F), this month marks a subtle transition toward cooler weather. While precipitation does increase slightly, resulting in about five days of rain, it serves to enhance the lushness of the landscape rather than detract from outdoor activities. The humidity remains high at 84%, yet the ocean air provides a pleasant alleviation. This blend of warm days and occasional rain creates an inviting atmosphere, perfect for enjoying the vibrant culture and stunning surroundings. For a deeper dive into Mindelo's varied climate throughout the year, visit Mindelo Climate.