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
Ribeira Grande notes an average high-temperature of a still warm 26.5°C (79.7°F) in September, displaying minor variation from August. Ribeira Grande's nighttime temperatures in September see a subtle dip to an average of 25.7°C (78.3°F).Humidity
The months with the highest humidity are July through September, with an average relative humidity of 82%.Rainfall
The month with the most rainfall in Ribeira Grande is September, when the rain falls for 9.1 days and typically aggregates up to 31mm (1.22") of precipitation.Sea temperature
In Ribeira Grande, in September, the average water temperature 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 September in Ribeira Grande, 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 September, the average sunshine in Ribeira Grande is 8h.UV index
The months with the highest UV index in Ribeira Grande 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 unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 7 during September leads to these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Alert! The Sun's UV rays are heightened by the reflection of sand and water.
Frequently asked questions
What is the usual temperature for Ribeira Grande in September?
What is the most humid month in Ribeira Grande?
What is the average humidity in September in Ribeira Grande?
What is the rainiest month in Ribeira Grande?
How many days does it rain in September in Ribeira Grande?
How warm is the water in September in Ribeira Grande?
How many hours of daylight does Ribeira Grande have in September?
When are sunrise and sunset in September in Ribeira Grande?
How long on average sun shines in September in Ribeira Grande?
What are the months with the highest UV index in Ribeira Grande?
How high is the UV index in September in Ribeira Grande?
Average temperature in September
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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
Ribeira Grande, 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).
Ribeira Grande, Cape Verde
Weather forecast for your location
2. Allow the app to use your location
