September weather forecast
Calheta, Cape Verde

Weather in September

September, the first month of the autumn, in Calheta, is also a moderately hot month, with average temperature varying between 28.1°C (82.6°F) and 25.8°C (78.4°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still moderately hot 28.1°C (82.6°F). The average low-temperature, in September, is 25.8°C (78.4°F).

Heat index

In September, the average heat index is appraised at a hot 32.2°C (90°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like wind, differences in body mass, height, and shape, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

Months with the highest humidity in Calheta are June through September, with an average relative humidity of 79%.

Rainfall

The month with the most rainfall is September when the rain falls for 13.1 days and typically aggregates up to 50mm (1.97") of precipitation.

Sea temperature

In September, the average sea temperature is 27.3°C (81.1°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in Calheta is 12.2h.

Sunshine

In Calheta, the average sunshine is 8h.

UV index

Months with the highest UV index are August through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Calheta?

In September, in Calheta, Cape Verde, the average high-temperature is 28.1°C (82.6°F), and the average low-temperature is 25.8°C (78.4°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in September is appraised at 32.2°C (90°F).

What is the most humid month in Calheta?

June through September, with an average relative humidity of 79%, are most humid months.

What is the average humidity in September in Calheta?

In September, the average relative humidity is 79%.

What is the wettest month in Calheta?

September is the month with the most rainfall. Rain falls for 13.1 days and accumulates 50mm (1.97") of precipitation.

How much does it rain in Calheta in September?

In Calheta, during September, the rain falls for 13.1 days and regularly aggregates up to 50mm (1.97") of precipitation.

What is the sea water temperature in September in Calheta?

In September, the average sea temperature in Calheta is 27.3°C (81.1°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Calheta have in September?

In September, the average length of the day is 12.2h.

How many hours of sunshine does Calheta have in September?

The average sunshine in September in Calheta, Cape Verde, is 8h.

What are the months with the highest UV index in Calheta?

Months with the highest UV index in Calheta are August through November, with an average maximum UV index of 7.

How high is the UV index in September in Calheta?

The average daily maximum UV index in September in Calheta, Cape Verde, is 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.

Average temperature in September
Calheta, Cape Verde

Average temperature in September - Calheta, Cape Verde
  • Average high temperature in September: 28.1°C

The warmest month (with the highest average high temperature) is October (28.4°C).
Months with the lowest average high temperature are February and March (23.7°C).

  • Average low temperature in September: 25.8°C

Months with the highest average low temperature are September and October (25.8°C).
The coldest month (with the lowest average low temperature) is February (20.9°C).

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Average pressure in September
Calheta, Cape Verde

Average pressure in September - Calheta, Cape Verde
  • Average pressure in September: 1012.5mbar

The month with the highest atmospheric pressure is January (1015.2mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).

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Average wind speed in September
Calheta, Cape Verde

Average wind speed in September - Calheta, Cape Verde
  • Average wind speed in September: 16.1km/h

The windiest month (with the highest average wind speed) is February (25.8km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).

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Average humidity in September
Calheta, Cape Verde

Average humidity in September - Calheta, Cape Verde
  • Average humidity in September: 79%

Months with the highest relative humidity are June, July, August and September (79%).
The month with the lowest relative humidity is January (69%).

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Average rainfall in September
Calheta, Cape Verde

Average rainfall in September - Calheta, Cape Verde
  • Average rainfall in September: 50mm

The wettest month (with the highest rainfall) is September (50mm).
The driest months (with the least rainfall) are January, March and May (1mm).

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Average rainfall days in September
Calheta, Cape Verde

Average rainfall days in September - Calheta, Cape Verde
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is September (13.1 days).
The month with the least rainy days is January (0.7 days).

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Average sea temperature in September
Calheta, Cape Verde

Average sea temperature in September - Calheta, Cape Verde
  • Average sea temperature in September: 27.3°C

The best month for swimming (with the highest average sea temperature) is October (27.4°C).
The coldest month (with the lowest average sea temperature) is March (23.3°C).

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Average daylight in September /
Average sunshine in September
Calheta, Cape Verde

Average daylight in September / Average sunshine in September - Calheta, Cape Verde
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13h).
The month with the shortest days is December (Average daylight: 11.2h).

  • Average sunshine in September: 8h

The month with the most sunshine is May (Average sunshine: 9.9h).
The month with the least sunshine is August (Average sunshine: 7h).

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Average sunshine days in September
Calheta, Cape Verde

Average sunshine days in September - Calheta, Cape Verde
  • Average sunshine days in September: 13.1 days

Months with the most sunshine days are January and May (29.3 days).
The month with the least sunshine days is September (13.1 days).

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Average UV index in September
Calheta, Cape Verde

Average UV index in September - Calheta, Cape Verde
  • Average UV index in September: 7

Months with the highest UV index are August, September, October and November (UV index 7).
Months with the lowest UV index are January, February, March, April, May, June, July and December (UV index 6).

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Average cloud cover in September
Calheta, Cape Verde

Average cloud cover in September - Calheta, Cape Verde
  • Average cloud cover in September: 44

The month with the most cloud cover is August (Cloud cover 52).
The month with the least cloud cover is May (Cloud cover 13).

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Average visibility in September
Calheta, Cape Verde

Average visibility in September - Calheta, Cape Verde
  • Average visibility in September: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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