Conditions guidance only. Cliffs are dangerous — never dig in or stand near them.
Check tide times locally and tell someone where you're going.
Safety page
Leave the beach by 2:59pm — the tide will cut off your route back.
Big tide today (spring tide) — more beach exposed, but it comes back in fast.
Why: A big 0.7 m low tide falls at lunchtime.
19° · overcast · Low tide: 1:43am (0.7 m), 1:59pm (0.7 m) · Wind up to 36 km/h · Waves 1.8 m
Sunday 13 September
Fair
Safe window: 12:32pm – 3:32pm
Leave the beach by 3:32pm — the tide will cut off your route back.
Big tide today (spring tide) — more beach exposed, but it comes back in fast.
Why: A big 0.7 m low tide falls mid-afternoon.
19° · drizzle · 6mm rain · Low tide: 2:17am (0.6 m), 2:32pm (0.7 m) · Wind up to 34 km/h · Waves 1.8 m
Monday 14 September
Fair
Safe window: 1:03pm – 4:03pm
Leave the beach by 4:03pm — the tide will cut off your route back.
Big tide today (spring tide) — more beach exposed, but it comes back in fast.
Why: A big 0.9 m low tide falls mid-afternoon.
20° · overcast · 2mm rain · Low tide: 2:49am (0.7 m), 3:03pm (0.9 m) · Wind up to 25 km/h · Waves 1.3 m
Tuesday 15 September
Fair
Safe window: 1:34pm – 4:34pm
Leave the beach by 4:34pm — the tide will cut off your route back.
Big tide today (spring tide) — more beach exposed, but it comes back in fast.
Why: A big 1.3 m low tide falls mid-afternoon.
19° · mostly clear · 3mm rain · Low tide: 3:20am (1.0 m), 3:34pm (1.3 m) · Wind up to 24 km/h · Waves 1.5 m
Wednesday 16 September
Quiet day
Safe window: 2:05pm – 5:05pm
Leave the beach by 5:05pm — the tide will cut off your route back.
Why: Low tide falls mid-afternoon, though it is not an especially big one. No recent storms, so expect a picked-over beach.
16° · mostly clear · Low tide: 3:50am (1.4 m), 4:05pm (1.8 m) · Wind up to 21 km/h · Waves 1.6 m
Thursday 17 September
Not safe
No safe daylight window
Why: Rough seas with big waves forecast — stay off the beach today.
17° · overcast · 4mm rain · Low tide: 4:21am (2.0 m), 4:38pm (2.4 m) · Wind up to 30 km/h · Waves 2.6 m
Friday 18 September
Not safe
No safe daylight window
Why: Rough seas with big waves forecast — stay off the beach today.
17° · overcast · 4mm rain · Low tide: 4:54am (2.7 m), 5:15pm (3.1 m) · Wind up to 25 km/h · Waves 2.7 m
Where to look
Hunt the gravel pockets between the flat rocks at low water, south of the river mouth — Gryphaea and ammonite fragments concentrate in the runnels where the tide sorts the shingle.
What fossils look like here
Ammonite impressions here can be dinner-plate size, showing as coiled ridges on fallen grey-blue slabs. 'Devil's toenails' (Gryphaea) are thick, curved oyster shells lying loose in the gravel. Free identification: photograph your find for the enquiry service at Amgueddfa Cymru — National Museum Cardiff.