Marble Bay (Pied du Mur)
Sark · Guernsey
Rating right now
A april–october beach on the Celtic Sea near Sark, Marble Bay (Pied du Mur) is exposed to SE swell — E–S on the forecast is when it lights up, ideally with a W–N wind.
Today's surf at Marble Bay (Pied du Mur)
Updated 01:19 spot time
Marble Bay (Pied du Mur) surf report for Thursday 1 Oct: waves 1.5 m head high to overhead, 1.0 m W swell at 11.25 s. Wind up to 32 km/h WSW. Water 19°C. Best surf window around 16:00 — fun (3/5) with 19 km/h WSW 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: ~16.3°C (61.3°F) on average
Jan
10.6°C
51.1°F · 9.1–12.3°C
Feb
9.7°C
49.5°F · 8–11°C
Mar
9.4°C
48.9°F · 8.2–10.4°C
Apr
10°C
50°F · 9–11.7°C
May
11.7°C
53.1°F · 10.1–13.7°C
Jun
13.8°C
56.8°F · 12.3–15.8°C
Jul
15.7°C
60.3°F · 14.1–18.1°C
Aug
17°C
62.6°F · 16.1–18.7°C
Sep
17.2°C
63°F · 16.4–18.2°C
Oct
16.3°C
61.3°F · 14.8–17.7°C
Nov
14.3°C
57.7°F · 11.7–16°C
Dec
12.2°C
54°F · 10.7–13.9°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
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.
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