Weather in September
As
September ushers in, temperatures in
Niterói's sea marginally decrease to 21.6°C (70.9°F). Notwithstanding, the sea conditions remain conducive for water-related activities. A shift towards extended daylight hours marks this period, incrementing to an average of 12 hours, contributing to the city's charm. Meanwhile, the growing daylight hours invite people to immerse themselves in Niterói's diverse cultural happenings. As Niterói transitions from winter to spring, tourists can enjoy the best of both seasons.
Sea temperature
The month with the coldest seawater in Niterói is September, with an average sea temperature of 21.6°C (70.9°F).
Note: In water with a temperature of 21.6°C (70.9°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
Daylight
In September, the average length of the day is 11h and 58min.
On the first day of September in Niterói, sunrise is at 06:02 and sunset at 17:42. On the last day of the month, sunrise is at 05:33 and sunset at 17:51 -03.
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