September weather forecastSão Pedro, Cape Verde
September
Weather in September
September’s weather in São Pedro presents a blend of summer warmth and rain showers. This month records the highest rainfall with 31mm (1.22") falling over nine days, providing a refreshing touch to the warm climate. Despite the increased rainfall, the temperature remains consistently warm, maintaining the summer feel. The sea continues to offer pleasant conditions for water enthusiasts. The lively blend of sunny, warm, and occasional rainy days gives September a unique appeal.Temperature
The start of September in São Pedro marks an average high-temperature of a still warm 26.5°C (79.7°F), hardly distinguishable from the conditions in August. In September, São Pedro's nights cool slightly to a consistent average temperature of 25.7°C (78.3°F).Humidity
The months with the highest humidity in São Pedro are July through September, with an average relative humidity of 82%.Rainfall
The month with the most rainfall in São Pedro, Cape Verde, is September, when the rain falls for 9.1 days and typically aggregates up to 31mm (1.22") of precipitation.Sea temperature
September is the month with the warmest seawater, with an average sea temperature of 27°C (80.6°F).Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods.
Daylight
The average length of the day in September in São Pedro is 12h and 14min.On the first day of September in São Pedro, sunrise is at 06:26 and sunset at 18:53. On the last day of the month, sunrise is at 06:30 and sunset at 18:29 -01.
Sunshine
In São Pedro, the average sunshine in September is 8h.UV index
The months with the highest UV index are September and October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 during September translates into the following directions:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
São Pedro, Cape Verde
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is October (26.7°C).
The month with the lowest average high temperature is February (21.8°C).
- Average low temperature in September: 25.7°C
The months with the highest average low temperature are September and October (25.7°C).
The coldest month (with the lowest average low temperature) is February (20.7°C).
Average pressure in September
São Pedro, Cape Verde
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is January (1016.6mbar).
The months with the lowest atmospheric pressure are August and September (1013.3mbar).
Average wind speed in September
São Pedro, Cape Verde
- Average wind speed in September: 21.2km/h
The windiest month (with the highest average wind speed) is February (28.6km/h).
The calmest month (with the lowest average wind speed) is August (18.2km/h).
Average humidity in September
São Pedro, Cape Verde
- Average humidity in September: 82%
The months with the highest relative humidity are July, August and September (82%).
The months with the lowest relative humidity are January and December (73%).
Average rainfall in September
São Pedro, Cape Verde
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is September (31mm).
The driest months (with the least rainfall) are January, March, April and May (1mm).
Average rainfall days in September
São Pedro, Cape Verde
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is September (9.1 days).
The month with the least rainy days is February (1 days).
Average sea temperature in September
São Pedro, Cape Verde
- Average sea temperature in September: 27°C
The best month for swimming (with the highest average sea temperature) is September (27°C).
The coldest month (with the lowest average sea temperature) is February (22°C).
Average daylight in September /
Average sunshine in September
São Pedro, Cape Verde
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is May (Average sunshine: 9h and 24min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).
Average sunshine days in September
São Pedro, Cape Verde
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is September (17.8 days).
Average UV index in September
São Pedro, Cape Verde
- Average UV index in September: 7
The months with the highest UV index are September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
Average cloud cover in September
São Pedro, Cape Verde
- Average cloud cover in September: 39
The month with the most cloud cover is August (Cloud cover 44).
The month with the least cloud cover is May (Cloud cover 19).
Average visibility in September
São Pedro, Cape Verde
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





