Brazil: where to swim in March?
Brazil, in March: the sea is at 27.3 °C on average along the coast, from 24.8 °C to 28.6 °C depending on the spot. Where the water is warmest (28.6 °C), it is very warm. Almost lukewarm: you can get in without any cold shock.
Sea temperature, month by month
| Month | Average temperature | Depending on the spot | Where it is warmest |
|---|---|---|---|
| January | 27.1 °C | 24.8 °C – 28.4 °C | very warm |
| February | 27.2 °C | 24.9 °C – 28.4 °C | very warm |
| March | 27.3 °C | 24.8 °C – 28.6 °C | very warm |
| April | 27.1 °C | 23.3 °C – 28.9 °C | very warm |
| May | 26.0 °C | 21.0 °C – 28.8 °C | very warm |
| June | 25.0 °C | 18.3 °C – 28.9 °C | very warm |
| July | 24.2 °C | 16.7 °C – 28.7 °C | very warm |
| August | 23.9 °C | 16.2 °C – 28.7 °C | very warm |
| September | 24.2 °C | 17.6 °C – 28.8 °C | very warm |
| October | 24.8 °C | 19.6 °C – 28.6 °C | very warm |
| November | 25.7 °C | 21.6 °C – 28.8 °C | very warm |
| December | 26.4 °C | 23.3 °C – 28.6 °C | very warm |
Compared with February, the water hardly changes in March. The warmest month: March (27.3 °C). The coldest: August (23.9 °C).
Nearby, in March
- United States Virgin Islands 26.5 °C · warm
- Puerto Rico 26.6 °C · warm
- Mexico 22.5 °C · very warm
- Portugal 14.9 °C · cool
- United States 14.5 °C · pleasant
- Ireland 9.4 °C · cold
- France 11.7 °C · cold
- United Kingdom 7.9 °C · very cold
- Netherlands 6.3 °C · very cold
And right now?
For the temperature measured right now, station by station and to the hour: Brazil: water temperature
Frequently asked questions
What is the sea temperature in March?
Brazil, in March: 27.3 °C on average along the coast, from 24.8 °C in the coolest waters to 28.6 °C in the warmest (average of the years 2011 to 2025).
Can you swim in March?
Where the water is warmest (28.6 °C), it is very warm. Almost lukewarm: you can get in without any cold shock.
What is the best month for swimming?
The water is warmest in March (27.3 °C on average) and coldest in August (23.9 °C). Where the water is warmest, it goes above 20 °C in these months: January, February, March, April, May, June, July, August, September, October, November, December.
Where is the water warmest in March?
The warmest in March: United States Virgin Islands (26.5 °C), Puerto Rico (26.6 °C), Mexico (22.5 °C). The coolest: Netherlands (6.3 °C).
Where do these temperatures come from?
These are averages of the sea surface temperature from 2011 to 2025, computed from NOAA satellite images (OISST, one value about every 50 km), in a 100 km strip along the coasts of the main country: distant territories (overseas, remote islands) are not counted. It is an estimate, not a measurement taken at the beach: lakes and rivers are not included.