The remains of a shipwreck off the Abergele coast dating back 150 years was revealed by July’s thunderstorms.
A prehistoric forest and 200 archaeological sites were also unearthed following extreme weather.
Archaeologist Dr Paul Belford said “you’ll see more and more of this” as the world warms up.
Experts have “tentatively identified” the recently-uncovered Abergele wreck as the 35-tonne wooden sloop Endeavour that sunk without trace in gales in October 1854.
The remains of the 45ft long vessel was found at Pensarn beach in Conwy county by a member of the public.
“The stormy weather created giant waves which moved the sand banks and exposed the boat,” said Dr Belford, chief executive of the Clwyd-Powys Archaeological Trust.
“You’ll see more and more wrecks and ancient monuments uncovered as extreme weather events become more frequent due to the impact of climate change.
“Like the recent shipwreck find, these discoveries can help us answer the questions of our history.
“Hopefully research will also help us learn lessons from the past and aid the fight against climate change.”
The north Wales shipwreck lies in the area known as Abergele Roads, a large area of shoals, near a tidal pond, which is only visible after storms and during low tides.
It comes after a forest buried under water and sand for more than 4,500 years was uncovered between Ynyslas and Borth in Ceredigion by Storm Hannah in May.
The remains of the trees, preserved in the local peat, were exposed by low tides and high winds.
While hundreds of archaeological sites were found in the 2018 heatwave.
The long dry spell last year left parched fields with unmistakable “crop marks” painted into the landscape.
Ancient hillforts and Roman settlements were among sites spotted from the air.