Porth Buarth-y-mor
Anglesey · United Kingdom
Rating right now
Porth Buarth-y-mor is a SW-facing sand beach on the Irish Sea coastline near Anglesey — it picks up S–NW swell and turns cleanest in a NE–E wind, with the most consistent surf through april–october.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~15.4°C (59.7°F) on average
Jan
9.5°C
49.1°F · 8–11°C
Feb
8.6°C
47.5°F · 7.3–9.5°C
Mar
8.2°C
46.8°F · 7.1–9.2°C
Apr
9.1°C
48.4°F · 8.2–10.1°C
May
10.5°C
50.9°F · 8.5–11.7°C
Jun
12.6°C
54.7°F · 11.6–13.7°C
Jul
14°C
57.2°F · 11.9–15.5°C
Aug
15.3°C
59.5°F · 14.7–16.2°C
Sep
15.4°C
59.7°F · 14.2–16.6°C
Oct
14.5°C
58.1°F · 13.1–16.1°C
Nov
12.6°C
54.7°F · 10.6–14.2°C
Dec
11°C
51.8°F · 10–12.5°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
S–NW
Best wind
NE–E
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
Porth Gro
Anglesey · United Kingdom
Porth Twyn-mawr
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Porth Cadwaladr
Anglesey · United Kingdom
Porth-y-Cŵch
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Porth China
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Porth Nobla
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More beaches in Anglesey →see all spots in Anglesey, United Kingdom
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