Punalu'u Black Sand Beach
Hawaii · United States
Rating right now
A year-round beach on the Coastal Waters near Hawaii, Punalu'u Black Sand Beach is exposed to SE swell — E–S on the forecast is when it lights up, ideally with a W–N wind.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~27.1°C (80.8°F) on average
Jan
25.1°C
77.2°F · 23.4–25.9°C
Feb
24.8°C
76.6°F · 24–25.9°C
Mar
24.7°C
76.5°F · 23–25.7°C
Apr
25°C
77°F · 23.4–26.1°C
May
25.6°C
78.1°F · 24.7–27.3°C
Jun
26°C
78.8°F · 24.7–27.3°C
Jul
26.6°C
79.9°F · 25.1–27.8°C
Aug
26.9°C
80.4°F · 25.8–28.4°C
Sep
27.2°C
81°F · 25.8–29°C
Oct
27.1°C
80.8°F · 25.8–28.3°C
Nov
26.6°C
79.9°F · 25.3–27.9°C
Dec
25.7°C
78.3°F · 24.3–26.8°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
E–S
Best wind
W–N
Break type
Beach break
Best season
Year-round
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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