Warmest Part of the British Isles

Where Is It Warmest in the British Isles?

The southwest of England (Cornwall, Devon, Isles of Scilly) and the south coast of Wales (Pembrokeshire, Gower) are the warmest areas on average.

Why These Areas?

• Gulf Stream / North Atlantic Drift: Warm ocean current raises coastal temperatures.
• Prevailing SW winds: Bring maritime air, mild winters, cool summers.
• Latitude: Furthest south (Lizard Point 49°57′N).
• Low elevation: Less cooling than uplands.

Temperature Data

Microclimates

• Isles of Scilly: Frost-free, subtropical plants thrive (palms, agaves).
• South Devon coast: "English Riviera" – Torbay, Exmouth.
• Channel Islands (Guernsey, Jersey): Even milder (not politically British Isles but geographically).

Coldest Areas

Scottish Highlands (Ben Nevis, Cairngorms), Pennines, Snowdonia – elevation drives cold, not latitude.