When To Go · Destination Guide

Lundy and North Devon

Tide-timed wrecks, kelp-clad pinnacles, and wild Atlantic days around Lundy's grey seals

When to go

Best time to visit Lundy and North Devon

May to September gives the strongest overlap of regular sea access, charter activity, longer daylight, and less severe water temperature, with July to September usually the most comfortable underwater period.

Best overall window

May to September, with April and October as weather-dependent shoulders

The best overlap of sea transport, dive operations, long daylight, island events, and gradually warmer water.

Outside that window

Storm Disruptions.

Choose your trip style

Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.

Month-by-month planner

The overall row stays visible so you can compare it against the currently selected scope.

BestGoodTradeoffsMore variable

Scope	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Overall	Overall - Jan: More variable	Overall - Feb: More variable	Overall - Mar: More variable	Overall - Apr: Good	Overall - May: Best	Overall - Jun: Best	Overall - Jul: Best	Overall - Aug: Best	Overall - Sep: Best	Overall - Oct: Good	Overall - Nov: More variable	Overall - Dec: More variable

Regional timing around Lundy and North Devon

These regional shifts apply only to the selected scope.

Area

Best months

Why it changes

Lundy Island

May to September

The island's useful season is constrained more by marine access and daybyday weather than by air temperature alone.

Main caution: Trip Cancellations.

North Devon Mainland

April to October

Ilfracombe, Woolacombe, Hartland, Lynton, and Exmoor preserve trip value even when Lundy transport is disrupted.

Main caution: School Holiday Crowds.

Wildlife goals and seasonal highlights

These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.

Grey seal pupping and higher island counts
Best for Scuba, Freedive, Snorkel, Topside
Aug to Oct
JanFebMarAprMayJunJulAugSepOctNovDec
Seal numbers around Lundy rise around the pupping period.
Puffins and breeding seabirds
Best for Topside, Snorkel
Apr to Jul
JanFebMarAprMayJunJulAugSepOctNovDec
Spring through midsummer is the practical window for puffins and other breeding seabirds around Lundy's cliffs, although exact abundance and departure timing vary.
Spider crab activity
Best for Scuba, Snorkel
Jul to Aug
JanFebMarAprMayJunJulAugSepOctNovDec
A North Devon operator reports spider crabs as a recurring midsummer highlight on its Lundy trips.
Spring plankton productivity
Best for Scuba, Freedive, Snorkel
Apr to Jun
JanFebMarAprMayJunJulAugSepOctNovDec
Productive spring water can support rich marine life but may reduce underwater visibility.
Autumn bird migration
Best for Topside
Sep to Oct
JanFebMarAprMayJunJulAugSepOctNovDec
Lundy's position in the Bristol Channel makes autumn migration a compelling reason to add time ashore.

Always true for this destination

Storm Disruptions.
Crossings and exposed sites can feel rougher in this stretch.
Trip Cancellations.

Seasonal cautions

Jul to Aug: Peak holiday demand can tighten charter, accommodation, and mainland parking availability.
Oct to Mar: Atlantic systems and the winter transport pattern reduce the reliability of water-led itineraries.

Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.