Brazil
Pernambuco · Atlantic Ocean

Fernando de Noronha Baia do Sancho Water Temperature & Swim Forecast

Popular beach in Fernando de Noronha, Brazil.

Very warm water with a light chop and a light breeze — great swimming conditions.

Sea temperature now
29.6°Ctropical
Excellent
Source: Open-Meteo Marine

Model estimate · modelled, not a buoy measurement. How accurate is this?

Air temperature
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Wave height
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Wind
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UV index
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Location

Fernando de Noronha Baia do Sancho on the map, with nearby beaches and live sea temperatures.

7-day forecast

Water, air, waves, wind and UV outlook for the week ahead.

Wetsuit recommendation

No wetsuit

At 29.6°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.

Surf & watersports
Tropical-feel conditions. Most swimmers stay comfortable for an hour or more without thermal protection. UV exposure is the bigger risk — sunscreen and a rash vest are worth packing.
Open-water swimming
Open-water swims of 60+ minutes feel comfortable with no neoprene.

Recommendation tuned for Fernando de Noronha Baia do Sancho's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.

Fernando de Noronha Baia do Sancho swimming conditions summary

Water temperature
29.6°C
Water feels
Bath-warm
Swimmable today
Yes — comfortable for most swimmers
Swim conditions score
85/100 · Excellent
Wetsuit needed
No wetsuit
Air temperature
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Waves
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Wind
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UV index
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Average sea temperature (October)
29.0 °C
Warmest months to swim
January, October, November

At 29.6°C the water is warm enough to swim and surf in just a swimsuit or boardshorts. Model estimate. Water, wave, wind and UV values are Open-Meteo marine/weather model estimates, refreshed hourly — not buoy measurements.

Frequently asked questions

Can I swim at Fernando de Noronha Baia do Sancho right now?

The sea at Fernando de Noronha Baia do Sancho is currently 29.6°C — excellent swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.

What will the sea temperature be at Fernando de Noronha Baia do Sancho next week?

Based on long-term October averages and the latest marine model, expect the sea around Fernando de Noronha Baia do Sancho to sit close to 29.0°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.

When is the best month to swim at Fernando de Noronha Baia do Sancho?

January – October – November are typically the warmest months to swim at Fernando de Noronha Baia do Sancho, with sea temperatures at their seasonal peak.

Do I need a wetsuit at Fernando de Noronha Baia do Sancho?

With water currently at 29.6°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.

Quick answer

Can I swim at Fernando de Noronha Baia do Sancho today?

The sea is currently 29.6°C — excellent swimming conditions. Most swimmers will find it pleasant.

Key takeaways
  • • Located in Pernambuco, Brazil (Atlantic Ocean).
  • • Best suited to confident swimmers and watersports.
  • • Live data refreshed hourly from Open-Meteo Marine.

Monthly sea temperature averages

Tap any month to see what to expect — based on regional climatology.

Best time to swim in Fernando de Noronha Baia do Sancho

The sea in Fernando de Noronha Baia do Sancho peaks in October, when the water averages around 29°C.

The main swimming season runs from January – December, when surface temperatures stay comfortable for extended sessions.

On average, 12 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.

The coldest month is typically January at around 28°C, when cold-water swimmers dominate the coast.

Fernando de Noronha Baia do Sancho sea temperature history

Long-term climatology for Fernando de Noronha Baia do Sancho shows an annual mean sea temperature of 28°C, ranging from 28°C in winter to 29°C at the summer peak.

The seasonal swing is roughly 1°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.

Recent decades have trended slightly warmer at Fernando de Noronha Baia do Sancho, in line with regional sea-surface temperature records for the wider basin.

Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.

Jan
28°C
Feb
28°C
Mar
28°C
Apr
28°C
May
28°C
Jun
28°C
Jul
28°C
Aug
28°C
Sep
28°C
Oct
29°C
Nov
29°C
Dec
28°C

Fernando de Noronha Baia do Sancho sea temperature: frequently asked questions

What is the warmest month to swim in Fernando de Noronha Baia do Sancho?

October is the warmest month in Fernando de Noronha Baia do Sancho, when the sea averages about 29°C. Late-season warmth often persists a few weeks after peak.

When is the sea coldest in Fernando de Noronha Baia do Sancho?

The coldest month in Fernando de Noronha Baia do Sancho is typically January, when the water averages around 28°C. Cold-water swimmers and surfers dominate this period.

When can you swim in Fernando de Noronha Baia do Sancho without a wetsuit?

The main swimming season in Fernando de Noronha Baia do Sancho runs from January – December — about 12 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.

Do I need a wetsuit in Fernando de Noronha Baia do Sancho?

Fernando de Noronha Baia do Sancho stays warm year-round, so most swimmers never need a wetsuit — a rash guard is usually enough for sun and wildlife protection.

What is the average sea temperature in Fernando de Noronha Baia do Sancho?

The long-term annual mean sea temperature in Fernando de Noronha Baia do Sancho is about 28°C, based on multi-decadal climatology of the surrounding waters.

How do I check the current sea temperature in Fernando de Noronha Baia do Sancho?

The live reading at the top of this page shows the current sea temperature in Fernando de Noronha Baia do Sancho, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.

Year-round sea temperature

Best swim months: Jan – Feb – Mar – Apr – May – Jun – Jul – Aug – Sep – Oct – Nov – Dec

MonthSeaComfort
Jan28°CHot
Feb28°CHot
Mar28°CHot
Apr28°CHot
May28°CHot
Jun28°CHot
Jul28°CHot
Aug28°CHot
Sep28°CHot
Oct ⭐29°CHot
Nov29°CHot
Dec28°CHot

Nearby beaches

The closest coastline, with live water temperatures.