Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Porto Novo's entry into September measures an average high-temperature of a still warm 26.5°C (79.7°F), closely parallel to the preceding month. Porto Novo documents an average low-temperature of 25.7°C (78.3°F) for the nights of September.Humidity
July through September, with an average relative humidity of 82%, are the most humid months in Porto Novo.Rainfall
September is the month with the most rainfall in Porto Novo. Rain falls for 9.1 days and accumulates 31mm (1.22") of precipitation.Sea temperature
In Porto Novo, Cape Verde, the average seawater temperature in September is 26.6°C (79.9°F).Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.
Daylight
The average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 06:27 and sunset at 18:54. On the last day of September, sunrise is at 06:31 and sunset at 18:30 -01.
Sunshine
The average sunshine in September is 8h.UV index
September and October, with an average maximum UV index of 7, are months with the highest UV index in Porto Novo. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 7 in September translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Heads up! UV intensity is amplified by reflections from water and sand.
Frequently asked questions
What is the temperature in September in Porto Novo?
What is the most humid month in Porto Novo?
What is the average humidity in September in Porto Novo?
What is the rainiest month in Porto Novo?
How many days does it rain in September in Porto Novo?
What is the sea water temperature in September in Porto Novo?
How many hours of daylight does Porto Novo have in September?
What time are sunrise and sunset in September in Porto Novo?
How many hours of sunshine does Porto Novo have in September?
What is the month with the highest UV index in Porto Novo?
What is the UV index intensity in September in Porto Novo?
Average temperature in September
Porto Novo, 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
Porto Novo, 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
Porto Novo, 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
Porto Novo, 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
Porto Novo, 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
Porto Novo, 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
Porto Novo, Cape Verde
- Average sea temperature in September: 26.6°C
The best month for swimming (with the highest average sea temperature) is October (26.8°C).
The coldest month (with the lowest average sea temperature) is February (23.1°C).
Average daylight in September /
Average sunshine in September
Porto Novo, Cape Verde
- Average daylight in September: 12h and 1min
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
Porto Novo, 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
Porto Novo, 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
Porto Novo, 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
Porto Novo, 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).
Porto Novo, Cape Verde
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