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
September ushers in an average high-temperature of a moderately hot 23°C (73.4°F), aligning closely with the preceding month. With a barely noticeable fluctuation in temperature, São Vicente reaches an average low of 18.4°C (65.1°F) during the September nights.Humidity
In São Vicente, the average relative humidity in September is 81%.Rainfall
In São Vicente, during September, the rain falls for 15.7 days and regularly aggregates up to 65mm (2.56") of precipitation. In São Vicente, during the entire year, the rain falls for 193 days and collects up to 923mm (36.34") of precipitation.Sea temperature
With an average sea temperature of 20.7°C (69.3°F), September is the month with the coldest seawater in São Vicente.Note: In 20.7°C (69.3°F), swimming is not an enjoyable activity for most. As the temperature decreases from 21°C (69.8°F) to 15°C (59°F), it becomes harder to control breathing.
Daylight
In São Vicente, the average length of the day in September is 11h and 58min.On the first day of the month, sunrise is at 06:15 and sunset at 17:54. On the last day of September, in São Vicente, sunrise is at 05:46 and sunset at 18:04 -03.
Sunshine
In September, the average sunshine is 7.4h.UV index
May, July through September, with an average maximum UV index of 5, are months with the lowest UV index in São Vicente. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the temperature in September in São Vicente?
What is the average humidity in September in São Vicente?
How many days does it rain in September in São Vicente?
What is the month with the coldest sea water in São Vicente?
How cold is the water in September in São Vicente?
How many hours of daylight does São Vicente have in September?
What time are sunrise and sunset in September in São Vicente?
How many hours of sunshine does São Vicente have in September?
What are the months with the lowest UV index in São Vicente?
What is the UV index reading in September in São Vicente?
Average temperature in September
São Vicente, Brazil
- Average high temperature in September: 23°C
The warmest month (with the highest average high temperature) is February (28°C).
The month with the lowest average high temperature is July (22.2°C).
- Average low temperature in September: 18.4°C
The months with the highest average low temperature are January and February (23.3°C).
The coldest month (with the lowest average low temperature) is July (17.4°C).
Average pressure in September
São Vicente, Brazil
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.6mbar).
Average wind speed in September
São Vicente, Brazil
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is November (11.3km/h).
The calmest month (with the lowest average wind speed) is February (9.5km/h).
Average humidity in September
São Vicente, Brazil
- Average humidity in September: 81%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
São Vicente, Brazil
- Average rainfall in September: 65mm
The wettest month (with the highest rainfall) is January (122mm).
The driest month (with the least rainfall) is May (42mm).
Average rainfall days in September
São Vicente, Brazil
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is January (22.5 days).
The month with the least rainy days is June (9.4 days).
Average sea temperature in September
São Vicente, Brazil
- Average sea temperature in September: 20.7°C
The best month for swimming (with the highest average sea temperature) is February (27°C).
The coldest month (with the lowest average sea temperature) is September (20.7°C).
Average daylight in September /
Average sunshine in September
São Vicente, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 7h and 2min
The months with the most sunshine are February and May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in September
São Vicente, Brazil
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is June (19.4 days).
The month with the least sunshine days is November (5.2 days).
Average UV index in September
São Vicente, Brazil
- Average UV index in September: 5
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are May, July, August and September (UV index 5).
Average cloud cover in September
São Vicente, Brazil
- Average cloud cover in September: 40
The month with the most cloud cover is November (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
São Vicente, Brazil
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August and December (10km).
The months with the lowest visibility are September, October and November (9km).
São Vicente, Brazil
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