Praia das Nereidas
Rio Grande do Sul · Brazil
Rating right now
Praia das Nereidas is a W-facing sand beach on the Río de la Plata coastline near Rio Grande do Sul — it picks up SW–NW swell and turns cleanest in a NE–SE wind, with the most consistent surf through october–april.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~16.7°C (62.1°F) on average
Jan
25.3°C
77.5°F · 23.9–27.2°C
Feb
26°C
78.8°F · 24.1–29.7°C
Mar
24.5°C
76.1°F · 21.9–28.2°C
Apr
22.1°C
71.8°F · 18.3–24.9°C
May
18.5°C
65.3°F · 15.5–21.4°C
Jun
15.7°C
60.3°F · 12.8–19°C
Jul
14.2°C
57.6°F · 10.3–18.1°C
Aug
14.9°C
58.8°F · 12.2–20.1°C
Sep
16.7°C
62.1°F · 13.5–19.9°C
Oct
19.1°C
66.4°F · 15.4–21.2°C
Nov
21.8°C
71.2°F · 19.3–24.2°C
Dec
23.8°C
74.8°F · 21.8–25.8°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
SW–NW
Best wind
NE–SE
Break type
Beach break
Best season
October–April
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back. Sharks are part of the ecosystem here — avoid dawn, dusk and murky rivermouth water.
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