In article ,
Jeremy Handscomb writes:
Have noticed that the continent are having some highs that are below
freezing at the moment, underneath this beast of an anticyclone. Is this
unusual?

No.

Strasbourg for example was recording -1 C at 14Z yesterday. Is it
due to freezing fog? Why do they cool so much under high pressure and we
don't? Is it really just the influence of the seas or does their cool air
have a source?

In this case, I think it's just that they are further from the sea.
--
John Hall

"The covers of this book are too far apart."
Ambrose Bierce (1842-1914)