Castle Porth
Isles of Scilly · United Kingdom
Rating right now
An open N-facing sand beach on the Celtic Sea near Isles of Scilly, Castle Porth works on NW–NE groundswell; SE–SW winds offshore, with conditions most reliable april–october.
Today's surf at Castle Porth
Updated 05:24 spot time
Castle Porth surf report for Thursday 1 Oct: waves 3.0 m–4.0 m triple overhead+, 4.0 m W swell at 10.7 s. Wind up to 30 km/h SW. Water 17°C. Best surf window around 09:00 — good (3.5/5) with 18 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: ~14.5°C (58.1°F) on average
Jan
10.8°C
51.4°F · 9.8–12°C
Feb
10.2°C
50.4°F · 9.3–10.9°C
Mar
10°C
50°F · 9.4–11°C
Apr
10.6°C
51.1°F · 9.8–11.8°C
May
12.2°C
54°F · 10.6–14.2°C
Jun
14.7°C
58.5°F · 12.7–16.6°C
Jul
16.6°C
61.9°F · 14.8–20°C
Aug
17°C
62.6°F · 15.6–18.1°C
Sep
16.2°C
61.2°F · 14.4–18.5°C
Oct
14.5°C
58.1°F · 12.7–15.7°C
Nov
12.7°C
54.9°F · 10.6–14°C
Dec
11.6°C
52.9°F · 10.8–12.6°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
NW–NE
Best wind
SE–SW
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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Green Porth
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Cook's Porth
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Rushy Bay
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More beaches in Isles of Scilly →see all spots in Isles of Scilly, United Kingdom
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