The Isles of Scilly have a temperate Oceanic
climate, amongst the mildest and warmest climates in the United Kingdom. The
average annual temperature is 11.6 °C (for comparison the average in London is
11.0°C). Winters are amongst the warmest in the country due to southerly
latitude and moderating effects of the ocean. Summers are not as warm as on the
mainland. This is perhaps the sunniest area in the UK with on average 7.6 hours
per day in July. On average there are less than 2 days of air frost per year.
This balmy climate has resulted in the islands developing a thriving flower
industry