Moonstone Beach
California · United States
Rating right now
An open NE-facing sand beach on the Gulf of California near California, Moonstone Beach works on N–SE groundswell; SW–W winds offshore, with conditions most reliable april–october.
Today's surf at Moonstone Beach
Updated 17:58 spot time
Moonstone Beach surf report for Wednesday 30 Sept: waves 3 ft–4 ft chest to head high, 3 ft W swell at 6.8 s. Wind up to 10 mph ESE. Water 74°F. Best surf window around 12:00 PM — good (3.5/5) with 10 mph ESE wind.
Snapshot refreshed hourly — the live hourly forecast below updates in real time.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~19.3°C (66.7°F) on average
Jan
15°C
59°F · 13.4–16.5°C
Feb
14.8°C
58.6°F · 13.2–17.1°C
Mar
15°C
59°F · 13.4–17.8°C
Apr
15.8°C
60.4°F · 14.1–17.6°C
May
17°C
62.6°F · 14.7–19.7°C
Jun
18.3°C
64.9°F · 15.4–20.4°C
Jul
20°C
68°F · 17.4–23°C
Aug
20.6°C
69.1°F · 18.8–23.2°C
Sep
20.8°C
69.4°F · 18.3–24.1°C
Oct
19.3°C
66.7°F · 17.4–23.7°C
Nov
17.7°C
63.9°F · 15.8–20.5°C
Dec
16°C
60.8°F · 14.3–18.8°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
N–SE
Best wind
SW–W
Break type
Beach break
Best season
April–October
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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