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 6:47pm — the tide will cut off your route back.
Why: Low tide falls towards evening, though it is not an especially big one. No recent storms, so expect a picked-over beach.
12° · drizzle · 5mm rain · Low tide: 5:36am (1.9 m), 6:39pm (1.9 m) · Wind up to 24 km/h · Waves 0.9 m
Tuesday 20 October
Quiet day
Safe window: 6:31pm – 6:45pm
Leave the beach by 6:45pm — the tide will cut off your route back.
Why: Low tide falls towards evening, though it is not an especially big one. Daylight cuts the collecting window to under 45 minutes, so don't plan a long session. No recent storms, so expect a picked-over beach.
13° · overcast · 13mm rain · Low tide: 6:57am (2.1 m), 8:31pm (2.0 m) · Wind up to 26 km/h · Waves 0.9 m
Wednesday 21 October
Not safe
No safe daylight window
Why: Winds gusting around 77 km/h forecast — not a day to be under cliffs.
14° · overcast · 12mm rain · Low tide: 8:55am (2.1 m), 10:08pm (1.8 m) · Wind up to 42 km/h · Waves 1.4 m
Thursday 22 October
Not safe
No safe daylight window
Why: Winds gusting around 74 km/h forecast — not a day to be under cliffs.
14° · overcast · 23mm rain · Low tide: 10:17am (1.9 m), 10:55pm (1.5 m) · Wind up to 39 km/h · Waves 1.6 m
Friday 23 October
Not safe
No safe daylight window
Why: Winds gusting around 108 km/h forecast — not a day to be under cliffs.
12° · mostly clear · 7mm rain · Low tide: 11:05am (1.5 m), 11:30pm (1.2 m) · Wind up to 61 km/h · Waves 1.7 m
Saturday 24 October
Good day to hunt
Safe window: 9:43am – 12:43pm
Leave the beach by 12:43pm — the tide will cut off your route back.
Why: A recent westerly blow should have brought fresh cliff material onto the beach. An early-autumn blow like this restocks beaches after the quiet summer. Low tide falls at lunchtime, though it is not an especially big one.
15° · drizzle · 16mm rain · Low tide: 11:43am (1.2 m) · Wind up to 29 km/h · Waves 1.1 m
Sunday 25 October
Good day to hunt
Safe window: 9:19am – 12:19pm
Leave the beach by 12:19pm — the tide will cut off your route back.
Why: A recent westerly blow should have brought fresh cliff material onto the beach. An early-autumn blow like this restocks beaches after the quiet summer. Low tide falls at lunchtime, though it is not an especially big one.
16° · mostly clear · 2mm rain · Low tide: 12:03am (0.9 m), 11:19am (0.9 m), 11:36pm (0.7 m) · Wind up to 33 km/h · Waves 1.0 m
Where to look
Search the boulders and loose shingle west of the Cobb on a falling tide. Big ammonites sit in the grey boulders — photograph those — while smaller loose ones hide in the gravel between. The famous ammonite pavement is for admiring, not hammering.
What fossils look like here
Ammonites show as coiled ridges in grey limestone, or as golden pyrite spirals the size of a coin. Belemnites are smooth amber-brown rods shaped like rifle bullets. Ichthyosaur vertebrae look like dark, shiny cotton reels. Free identification: the Charmouth Heritage Coast Centre identifies finds in person and from emailed photos (charmouth.org).
Allowed: Loose fossils from the beach and foreshore are yours to keep — collecting them here is positively encouraged, because the sea destroys what nobody saves.
Never allowed: Never dig or hammer into the cliffs, ledges or landslide material; fossils still in place must stay in place.
Important finds: Register scientifically important finds with the Charmouth Heritage Coast Centre under the West Dorset Fossil Collecting Code.
Rules can change — check locally before you collect.
Holmbush car park above the Cobb, or Monmouth Beach car park by the boatyard.
Facilities
Toilets and cafés around the Cobb; fossil shops in town.
Access
Walk west past the Cobb; the famous ammonite pavement is exposed at low tide.
Hazards
The ammonite pavement is only safe on a falling tide — you can be cut off returning. Ledges are very slippery. Do not hammer the pavement: it is protected.