September Weather in Cape Verde - 2025

Cape Verde, also known as Cabo Verde, a tiny archipelago of scenic islands is located in the central Atlantic Ocean. It is made up of 10 volcanic islands belonging to the Micronesia ecoregion along with the Canary Islands, the Savage Isles, and the Azores. The official language spoken in Cape Verde is Portuguese as up until the 15th century, most of the archipelago was uninhabited until the Portuguese explorers discovered it. The majority of the locals also speak Cape Verdean Creole. 

Cape Verde was a shipping route for transatlantic trade from the 17^th century where several merchants, pirates, and trade ships would dock, resupply their ships and trade their wares before moving on to other destinations. Cape Verde was also the first European settlement in the tropics. One of the most fascinating things about this wonderful archipelago is how diverse and unique each island is which is definitely a treat snowbirds will enjoy.

September weather in Cape Verde

To get a good overview of the type of weather you can expect in September in Cape Verde, we will look at the day and night temperature, minimum and maximum water temperature, and if September is comfortable or humid

Generally, September in Cape Verde will be really nice. Historical data shows that you can expect an average temperature of around 78°F / 26°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will cool down to around 77°F / 25°C. Many will prefer a location with air conditioning due to the night temperature, and the high humidity level.

Cape Verde has rainy days in September. You can expect around 9 rainy days, with on average 2.4 inches / 60 mm of rain during the whole month.

But remember that rain can be short and heavy for many tropical locations, particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.

September weather in Cape Verde in more detail

To get a better feeling for the type of weather, you can expect in September in Cape Verde, we will look at the temperature, rain, wind, humidity, water temperature, and sun and clouds

- What will the temperature be in Cape Verde in September

Generally, you can expect in September an average temperature of 78°F / 26°C during the day and an average of 77°F / 25°C during the night. In September, during the warmest part of the afternoon, the temperature can often get as high as 80°F / 27°C, and at the end of the night, it can get as low as 73°F / 23°C.

When looking at the whole year, March is the coldest month, with an average temperature of around 69°F / 21°C. August, September and October are the hottest months, with an average temperature of around 78°F / 26°C. When comparing September with the temperature in the month before and after, this is equal to August, which sees an average maximum temperature of around 78°F / 26°C. And equal to October, which sees an average maximum temperature of around 78°F / 26°C.

But average temperatures only tell half of the story. It is also good to check the maximum and minimum temperatures. When looking at the whole year, August, September, October and November are the hottest months, with a temperature of around 80°F / 27°C. February, March, April and May are the coldest months, with a temperature of around 73°F / 23°C. When comparing September with the temperature in the month before and after, this is equal to August, which sees an average maximum temperature of around 80°F / 27°C. And equal to October, which sees an average maximum temperature of around 80°F / 27°C.

In the following graph, you can see how many cold and hot days you can expect in Cape Verde each month:

- Can you expect rain in September in Cape Verde?

Generally, you can expect about 9 rain days in September, with on average 2.4 inches / 60 mm of rain.

When looking at the whole year, January, March, April and May are the driest months, with an average rainfall of around 0 inches / 0 mm. September is the wettest month, with an average rainfall of around 2.4 inches / 60 mmmm. When comparing September with the month before and after, this is a lot more than August, which sees around 1.3 inches / 32 mm of rain. And a lot more than October, which sees around 0.6 inches / 16 mm of rain

If we look at the number of days with rain, April is the month with the least amount of rain days with an average of between 0 and 1 days. September is the month with the most rain days with an average of between 8 and 9 days. When comparing September with the month before and after, this is almost equal to August, which sees around 7 days of rain. And slightly more than October, which sees an average of between 3 and 4 days of rain

There is one thing that is important to know, in many tropical destinations rain can be short and heavy, particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.

- What will the water temperature be in Cape Verde for September

You can expect in September, the water temperature for Cape Verde to be between 84°F / 29°C and 78°F / 26°C.

To compare the water temperature we will use the maximum water temperature. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water.

October has the highest water temperature, with around 84°F / 29°C. March has the lowest water temperature, with an average of between 75°F / 24°C and 77°F / 25°C. When comparing the water temperature from September with the month before and after, September has a water temperature almost equal to August, with a water temperature of an average of between 82°F / 28°C and 84°F / 29°C. And almost equal to the water temperature from October, that is around 84°F / 29°C.

- Can you expect in September a lot of sunny days in Cape Verde

Generally, you can expect around 3 sunny days in September and around 15 partly sunny days. The remaining days will be cloudy.

When looking at the whole year, February and March And are the months with the higest number of sunny days, with around 7 sunny days. July is the month with the lowest number of sunny days, with an average of between 0 and 1 sunny days. When comparing September with the number of sunny days in the month before and after, it is almost equal to August, with an average of between 1 and 2 sunny days. And slightly less than October, with around 5 sunny days

We have looked at the sunny days in Cape Verde. Let's also look at the cloudy or overcast days. July is the month with the highest number of cloudy days, with an average of between 18 and 19 cloudy days. February is the month with the lowest number of cloudy days, with an average of between 7 and 8 cloudy days. When comparing September with the number of cloudy days in the month before and after, it is slightly lower than August, with around 16 cloudy days. And almost equal to October, with an average of between 10 and 11 cloudy days

- Will it be comfortable in September in Cape Verde?

Generally, September in Cape Verde will have a very high humidity, and can feel very uncomfortable.

We use the humidity and temperature in Cape Verde to calculate the Wintersun Expert Comfort level for each month. The lower the Wintersun Expert Comfort level, the more comfortable it will be. Only for certain people, extremely dry air can feel slightly uncomfortable.

When looking at the whole year, January and February And have the lowest humidity, with a Wintersun Expert comfort level of "comfortable" (not very humid). August has the highest humidity, with a Wintersun Expert comfort level of "extremely uncomfortable" (extremely humid). When comparing September with the month before and after, this is almost equal to August, which has a Wintersun Comfort level of "extremely uncomfortable" (extremely humid). And slightly more than October, which has a Wintersun Comfort level of "slightly uncomfortable" (moderately humid)

What to do in Cape Verde in September

There are a number of things to see while in Cape Verde. Some of which include:

• Volcanoes: Although they haven't been active in recent times, there are scenic views of once erupting volcanoes and interesting craters to be seen on some of the islands of Cape Verde.
• Loggerhead turtles: These beautiful sea creatures come to nest and lay their eggs in Cape Verdes sandy beaches. You have a higher chance of seeing the turtles at night and local companies provide guided tours for nature lovers who wish to see the third most important site for loggerhead turtles.
• Salt mines: In years past, salt was a major export for Cape Verde. The salt mines of Pedra de Lume are surrounded by the most beautiful backdrop. You can even spend some time soaking yourself and floating in the salt ponds that are now all that is left of the salt mines.
• Buracona: Located in Sal, Buracona is part of the protected landscape in the region. The stunning azure lagoon has rock walls around it that give the appearance of an open eyelid.
• Praia da Atalanta: This beautiful beach still has the wreckage from a Spanish ship on its shores that provides a stunning insight into its 1968 tragedy.

Is it humid in Cape Verde in September?

A lot of people ask interested in the humidity or relative humidity for Cape Verde in September. But the real question they want to ask is not about humidity but the amount of moisture in the air. Or better, about comfort. Will it be comfortable in September in Cape Verde, or will high humidity make it uncomfortable.

To answer this question, we have to look at the dew point. Relative humidity can change a lot in Cape Verde during the day and night, as it changes when the amount of moisture changes and, but also when the temperature changes. It is a lot less reliable for comfort. Where the dew point only varies with the amount of moisture in the air.

Looking at the dew point, we can see that for the month of September, you can expect that Cape Verde will have a very high humidity, and can feel very uncomfortable.

January and February are the months with the most comfort. It will not be very humid, and will feel comfortable. August is the most uncomfortable month. It will be extremely humid, and can feel extremely uncomfortable. In the graph, you can see that there is some difference between the most comfortable and most uncomfortable months

Is September a good time to go to Cape Verde?

Trying to answer the question of whether September is a good time to go to Cape Verde is not as easy as it first seems. Some people like colder weather, and others prefer a warmer climate. Some are fine with some humidity, and others are not. If your location has air conditioning, the night temperature is less important.

These are some examples. I will try to answer the question with a more generic person in mind. The more detailed information in this article should be enough to check further if this applies to you as well.

If we look at the average temperature for Cape Verde in September, we can see that it will be fine for most people. In September, you can expect it to be really nice, with an average temperature of around 78°F / 26°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will be around 77°F / 25°C.

The number of overcast days is more than 5, but you can still the sun with around 3 sunny days and 15 partly sunny days.

The last aspect we will look at is rain. You can expect around 9 rainy days, with on average 2.4 inches / 60 mm of rain during September. More then 5 days rain per month makes the chance higher you will see some rain during a shorter stay. But a day with rain does not mean a day you can not enjoy.

We have looked at the average day temperature, the night temperature, humidity, the number of overcast days, and the rain. We think that September in Cape Verde is not the most optimal destination. But that doesn't mean it is not a good time for you to go. As said before, each visitor has their own preferences when it comes to the weather.

Does it rain all day in Cape Verde in September?

In Cape Verde, it does not rain all day in September. You can expect around 9 rainy days, with on average 2.4 inches / 60 mm of rain during the month.

Another way of looking at the rain is the number of sunny days. For Cape Verde, there are, on average 3 sunny days and 15 partly sunny days in September. That clearly shows that it is not raining all the time.

And, as for many tropical locations, rain can be short and heavy. This applies particularly during the rainy season. It means that the number of days with rain and the amount of rain can be high, but you will still see many lovely days with a short period of heavy rain.

Is September the rainiest month in Cape Verde?

September is the month with the most rainy days, and it is the month with the most rain.

To answer what the rainiest month is in Cape Verde, we will both look at the month with the most rain, and the month with the highest number of rainy days.

September is the month with the the highest number of rainiest days. On average, you can expect 9 days with rain. April is the month with the lowest number of rainy days, with aproximately 0 days.

September is the month with the most rain. This is not equal as the one with the most rainy days. On average, you can expect 2.4 inches / 60 mm of rain. April is the month with the least amount of rain. This is not the same month as the one with the lowest number of rainy days. You can expect approximately 0 inches / 0 mm of rain.

Is September the most sunniest month in Cape Verde?

September is not the month with the most sunny days, not the month with the most partly sunny days, and it is not the month with the lowest number of overcast days.

To answer what the sunniest month is in Cape Verde, we will of course look at the month with the most sunniest days, but also look at the month with the biggest number of days that are sunny or partly sunny.

February and March are the months with the highest number of sunny days. On average, you can expect 3 sunny days, and 15 partly suny days. July is the month with the lowest number of sunny days.

December is the month with the highest number of sunny days and partly sunny days combined. While July is the month with the lowest number of sunny days and partly sunny days combined.

The last thing we will look at is the number of overcast days. February is the month with the lowest number of overcast days. While July is the month with the highest number of overcast days.

More information about Cape Verde

Weather in Cape Verde in other months

• Weather in Cape Verde for January
• Weather in Cape Verde for February
• Weather in Cape Verde for March
• Weather in Cape Verde for April
• Weather in Cape Verde for May
• Weather in Cape Verde for June
• Weather in Cape Verde for July
• Weather in Cape Verde for August
• Weather in Cape Verde for October
• Weather in Cape Verde for November
• Weather in Cape Verde for December

What to do in Cape Verde for each month

• What to do in January in Cape Verde
• What to do in February in Cape Verde
• What to do in March in Cape Verde
• What to do in April in Cape Verde
• What to do in May in Cape Verde
• What to do in June in Cape Verde
• What to do in July in Cape Verde
• What to do in August in Cape Verde
• What to do in September in Cape Verde
• What to do in October in Cape Verde
• What to do in November in Cape Verde
• What to do in December in Cape Verde