It certainly wasn't forecast to be like this 3 days OK. 20.5C at noon, sea breeze effect has virtually killed the light NW wind. But the most notable thing is how deep blue the sky is. Not even a wisp of cirrus or smallest contrail currently.
From my garden 13:00 - no enhancement
At Lands End around 10:15, when there was a little high cloud ro the west. The lighthouse is Longships. Scilly wasn't quite visible from the mainland, but it wouldn't really be visible from the altitude of that photo in any case. Possibly just a slight lump on the horizon.
The change in the weather is still awaited, unless you count the 0.6mm in a shower at dawn yesterday. In fact the last 2 days have been 2 of the best here, as we've lost the onshore E wind and kept bucketloads of sunshine. Today the south coasts of Devon & Cornwall appear to be the warmest in the UK.
The innacurate forecasts < 24 hours out (at least for west Cornwall, and apparently as far as Wembury) are very irksome for people who really on sunny weather trade. From the Boathose Stores, Sennen ". . .the Meteorological Office and the BBC forecasts which had pegged the rain as lasting most of the morning and a good deal heavier. It is a fair bet that such a forecast drove our customers to seek alternative entertainment today and would explain why business was as flat as the water in the bay."
Sadly, most people now believe postcode forecasts more than what they can see by opening their eyes. Still I'm sure Next did well, possibly not M&S at Hayle.
Graham
Penzance