October is a popular month to ask about Fernando de Noronha Baia do Sancho because conditions can shift week to week along this coast. Expect the water near 21.0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Atlantic Ocean.
Fernando de Noronha Baia do Sancho sea temperature in October — averages 21.0°C
The sea at Fernando de Noronha Baia do Sancho in Brazil averages 21.0°C during October, based on long-run climatology for the Atlantic Ocean. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · October
21.0°C
warm · Excellent
Live water now
…
Recommended wetsuit
Shorty 2mm
At 21.0°C a 2mm shorty keeps surfers warm; lap swimmers can usually skip the neoprene.
Monthly comparison
Yes — comfortable for most swimmers · Fernando de Noronha Baia do Sancho
Can you swim at Fernando de Noronha Baia do Sancho in June? — 22.0°C water22.0°CCan you swim at Fernando de Noronha Baia do Sancho in July? — 25.0°C water25.0°CCan you swim at Fernando de Noronha Baia do Sancho in August? — 26.0°C water26.0°CCan you swim at Fernando de Noronha Baia do Sancho in September? — 24.0°C water24.0°CCan you swim at Fernando de Noronha Baia do Sancho in October? — 21.0°C water21.0°CCan you swim at Fernando de Noronha Baia do Sancho in November? — 18.0°C water18.0°C
Frequently asked questions
What is the average sea temperature at Fernando de Noronha Baia do Sancho in October?
Fernando de Noronha Baia do Sancho averages 21.0°C in October, based on long-run climatology for the Atlantic Ocean.
Is the sea warm enough to swim at Fernando de Noronha Baia do Sancho in October?
Yes, most swimmers find 21.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Fernando de Noronha Baia do Sancho in October?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.