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 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
The advent of September signifies a minor shift to an average high-temperature of a still warm 26.5°C (79.7°F), aligning closely with August. September records a small disparity from daytime temperatures, marking an average low-temperature of 25.7°C (78.3°F) in Calhau.Humidity
The months with the highest humidity in Calhau, Cape Verde, are July through September, with an average relative humidity of 82%.Rainfall
September is the month with the most rainfall. Rain falls for 9.1 days and accumulates 31mm (1.22") of precipitation.Daylight
In September, the average length of the day in Calhau is 12h and 14min.On the first day of the month, sunrise is at 06:25 and sunset at 18:52. On the last day of September, sunrise is at 06:29 and sunset at 18:29 -01.
Sunshine
In September, the average sunshine is 8h.UV index
September and October, with an average maximum UV index of 7, are months with the highest UV index in Calhau. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 7 in September suggests the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Calhau in September?
What is the most humid month in Calhau?
What is the average humidity in September in Calhau?
What is the rainiest month in Calhau?
How many days does it rain in September in Calhau?
What is the average length of the day in September in Calhau?
What time are sunrise and sunset in September in Calhau?
How long on average sun shines in September in Calhau?
What is the month with the highest UV index in Calhau?
How high is the UV index in September in Calhau?
Average temperature in September
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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
Calhau, 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).
Calhau, Cape Verde
Weather forecast for your location
2. Allow the app to use your location