Porth Samddai
Gwynedd · United Kingdom
Rating right now
Porth Samddai is a SW-facing sand beach on the Irish Sea coastline near Gwynedd — it picks up SE–W swell and turns cleanest in a N–NE wind, with the most consistent surf through april–october.
Today's surf at Porth Samddai
Updated 02:40 spot time
Porth Samddai surf report for Thursday 1 Oct: waves 1.5 m–2.0 m overhead, 2.0 m SW swell at 8.15 s. Wind up to 26 km/h S. Water 17°C. Best surf window around 00:00 — good (3.5/5) with 19 km/h SW 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
9.2°C
48.6°F · 7.8–10.9°C
Feb
8.3°C
46.9°F · 7–9.4°C
Mar
8°C
46.4°F · 6.8–9.4°C
Apr
9.3°C
48.7°F · 8.1–10.3°C
May
11°C
51.8°F · 8.9–12.4°C
Jun
13.3°C
55.9°F · 11.9–14.5°C
Jul
14.8°C
58.6°F · 12.3–16.4°C
Aug
15.9°C
60.6°F · 15.3–17°C
Sep
15.7°C
60.3°F · 14.3–17.1°C
Oct
14.5°C
58.1°F · 13.1–16.1°C
Nov
12.3°C
54.1°F · 10–14.1°C
Dec
10.7°C
51.3°F · 9.7–12.1°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
SE–W
Best wind
N–NE
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.
Nearby spots
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Banc Sidan
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Porth Meudwy
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Pwll Darllo
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Porth Llanllawen
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Wig Bach
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More beaches in Gwynedd →see all spots in Gwynedd, United Kingdom
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