Where is the sea warmest in South America in March?
In March the warmest sea in South America is at Natal, Brazil, at 29.1°C. 105 of 125 cities measured are comfortable this month.
| # | City | Country | Sea | Swimming |
|---|---|---|---|---|
| 1 | Natal | Brazil | 29.1°C | Bath-like |
| 2 | Fortaleza | Brazil | 29.1°C | Bath-like |
| 3 | Recife | Brazil | 29.1°C | Bath-like |
| 4 | Santiago de Tolú | Colombia | 29.0°C | Bath-like |
| 5 | Belém | Brazil | 28.9°C | Bath-like |
| 6 | Maceió | Brazil | 28.9°C | Bath-like |
| 7 | Salvador | Brazil | 28.8°C | Bath-like |
| 8 | Macapá | Brazil | 28.8°C | Bath-like |
| 9 | Ilhéus | Brazil | 28.8°C | Bath-like |
| 10 | São Luís | Brazil | 28.7°C | Bath-like |
| 11 | Aracaju | Brazil | 28.7°C | Bath-like |
| 12 | San Juan de Urabá | Colombia | 28.3°C | Bath-like |
| 13 | Necoclí | Colombia | 28.1°C | Bath-like |
| 14 | Turbo | Colombia | 28.1°C | Bath-like |
| 15 | Machala | Ecuador | 28.0°C | Bath-like |
| 16 | Balao | Ecuador | 28.0°C | Bath-like |
| 17 | Posorja | Ecuador | 28.0°C | Bath-like |
| 18 | Tumbes | Peru | 27.9°C | Bath-like |
| 19 | San Lorenzo de Esmeraldas | Ecuador | 27.9°C | Bath-like |
| 20 | Valdez | Ecuador | 27.9°C | Bath-like |
| 21 | Pizarro | Colombia | 27.8°C | Bath-like |
| 22 | Turbaná | Colombia | 27.8°C | Bath-like |
| 23 | Cartagena | Colombia | 27.8°C | Bath-like |
| 24 | Playas | Ecuador | 27.8°C | Bath-like |
| 25 | San Andrés | Colombia | 27.8°C | Bath-like |
Ranked on the NOAA OISST monthly climatology — a long-run average for March, not a forecast. A given March will run warmer or cooler than this, and the sea is warmest late in the afternoon and late in the season.