• Definition varies from country to country.
  • In the UK, generally taken to mean a season of the year where the rain is slightly warmer than in other seasons.
  • It is a truth generally accepted that the rising warm air from millions of barbeques across the British Isles every weekend causes a region of low pressure to form over the main landmass, creating an anti-cyclonic  low pressure system which hoovers up as much damn, sopping wet air from the surrounding seas as is physically possibly and dumps it my back garden.