September weather forecast
Niterói, Brazil

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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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Frequently asked questions

What is the month with the coldest sea water in Niterói?

The month with the coldest seawater in Niterói is September, with an average sea temperature of 21.6°C (70.9°F).

What is the sea temperature in September in Niterói?

In Niterói, the average seawater temperature in September is 21.6°C (70.9°F). For most, swimming in 21.6°C (70.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Niterói have in September?

In September, the average day length is 11h and 58min.

When are sunrise and sunset in September in Niterói?

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.

Average sea temperature in September
Niterói, Brazil

Average sea temperature in September - Niterói, Brazil
  • Average sea temperature in September: 21.6°C

The best month for swimming (with the highest average sea temperature) is March (25.8°C).
The coldest month (with the lowest average sea temperature) is September (21.6°C).

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Average daylight in September
Niterói, Brazil

Average daylight in September - Niterói, Brazil
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).

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Niterói, Brazil

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