Lewes - Fog Hunter - London & Southeast England

This forecast tracks the Thames Valley fog and coastal mist that create atmospheric conditions across London and Southeast England. We combine humidity, temperature, and local topography to predict when fog will transform familiar locations into moody, cinematic scenes.

London's relationship with fog is legendary—the Victorian "pea soupers" may be gone, but Thames fog still creates magical photography conditions. The river acts as a fog generator, with mist rolling across the city at dawn. Meanwhile, the North and South Downs create valley fog conditions in rural Kent, Sussex, and Surrey.

What makes Southeast England fog photography exceptional:

• Thames fog - River mist at dawn creates moody silhouettes of Tower Bridge, St Paul's, and the Shard
• North Downs mist - Rolling chalk hills develop valley fog that creates layered landscapes
• South Downs valleys - Morning mist in river valleys with the Seven Sisters and Beachy Head emerging above
• Autumn intensity - September through November brings the most reliable fog conditions as land cools

Best conditions occur at dawn along the Thames between September and November. Elevated viewpoints like Greenwich Park or Primrose Hill offer views across fog-shrouded London. In the countryside, Box Hill and Devil's Dyke provide classic chalk downland fog compositions.