September weather forecastCalejão, Cape Verde
September
Weather in September
September, the first month of the autumn in Calejão, is still a warm month, with an average temperature varying between 26.5°C (79.7°F) and 25.7°C (78.3°F).Temperature
The beginning of September records an average high-temperature of a still moderately hot 26.5°C (79.7°F), marking a negligible difference from August's 26°C (78.8°F). Calejão sustains an average of approximately a still moderately hot 25.7°C (78.3°F) during September nights, with little variation from daytime highs.Humidity
July through September, with an average relative humidity of 82%, are the most humid months.Rainfall
The month with the most rainfall is September, when the rain falls for 9.1 days and typically aggregates up to 31mm (1.22") of precipitation.Daylight
In September, the average length of the day is 12h and 14min.On the first day of the month, sunrise is at 06:23 and sunset at 18:50. On the last day of September, sunrise is at 06:27 and sunset at 18:26 -01.
Sunshine
In September, the average sunshine 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 value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 7 during September translates into the following directions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calejão, 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
Calejão, 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
Calejão, 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
Calejão, 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
Calejão, 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
Calejão, 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 daylight in September /
Average sunshine in September
Calejão, 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 12min).
- 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
Calejão, 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
Calejão, 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
Calejão, 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
Calejão, 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).
