On Sunday, April 5, 2015 at 7:42:32 PM UTC+1, Nick Gardner wrote:
On 05/04/2015 19:21, Graham Easterling wrote:
The temperature in the Spring sunshine rose steadily to 11C by noon, by which time the whole Cornwall was basically clear of cloud. The gradient wind was ESE, but a sea breeze set in on both coasts so by 13:00 it was NE at Camborne, and quite a stiff SE at Penzance. In fact @ 14:00:-

Sea breeze here too.

It arrived fairly abruptly at 11:25 with a rapid shift in wind direction
from NNW to southerly and an increase in wind speed from intermittent
calm/1 mph to a steady 11 mph.

I was in the garden at the time and it felt distinctly chilly after the
previous calm conditions. The temperature fell back a bit too from 13.7C
to 12.4C before rising again to reach a maximum of 15.3C this afternoon.

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalley.co.uk

Yes. I was quite surprised at the strength of the sea breeze considering the unstable layer appeared to be limited. It was briefly strong enough, just after the sudden onset, to give white horses in Mount's Bay. Windsurfers at Marazion were well pleased!

I meant to mention the eventual max, like you after the sea breeze period, was 12.9C. Looks like being at 2 or 3C warmer tomorrow, possibly more.

Graham