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
In September, Santa Cruz experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 25.5°C (77.9°F), closely mirroring the climate in August. Nights in September showcase an average temperature of 24.6°C (76.3°F), slightly cooler than the daytime.Humidity
August through October, with an average relative humidity of 83%, are the most humid months.Rainfall
In Santa Cruz, São Tomé and Príncipe, in September, during 15.8 rainfall days, 35mm (1.38") of precipitation is typically accumulated. Throughout the year, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.Daylight
In September, the average length of the day in Santa Cruz is 12h and 7min.On the first day of the month, sunrise is at 05:29 and sunset at 17:36. On the last day of September, in Santa Cruz, sunrise is at 05:19 and sunset at 17:26 GMT.
Sunshine
The average sunshine in September is 5.4h.UV index
In Santa Cruz, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the average September temperature in Santa Cruz?
What are the most humid months in Santa Cruz?
What is the average humidity in September in Santa Cruz?
How many days does it rain in September in Santa Cruz?
What is the average length of the day in September in Santa Cruz?
When is the sunrise / sunset in September in Santa Cruz?
How many hours of sunshine does Santa Cruz have in September?
How high is the UV index in September in Santa Cruz?
Average temperature in September
Santa Cruz, São Tomé and Príncipe
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).
- Average low temperature in September: 24.6°C
The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).
Average pressure in September
Santa Cruz, São Tomé and Príncipe
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).
Average wind speed in September
Santa Cruz, São Tomé and Príncipe
- Average wind speed in September: 16.8km/h
The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).
Average humidity in September
Santa Cruz, São Tomé and Príncipe
- Average humidity in September: 83%
The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).
Average rainfall in September
Santa Cruz, São Tomé and Príncipe
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in September
Santa Cruz, São Tomé and Príncipe
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).
Average daylight in September /
Average sunshine in September
Santa Cruz, São Tomé and Príncipe
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is October (Average daylight: 12h and 6min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).
Average sunshine days in September
Santa Cruz, São Tomé and Príncipe
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).
Average UV index in September
Santa Cruz, São Tomé and Príncipe
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Santa Cruz, São Tomé and Príncipe
- Average cloud cover in September: 62
The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).
Average visibility in September
Santa Cruz, São Tomé and Príncipe
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
Santa Cruz, São Tomé and Príncipe
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