I think one word sums up most British weather: grey.
The next contender is: unpredictable.
You can't plan ahead for anything; a camping trip, a BBQ. Why, in mid May, am I wearing my winter puffa, plus umbrella, for a trip to London tomorrow? Top of 14?
Why did I spend our (last ever family) camping trip, in 2010, sitting in a tent, in Devon, in late August, wearing all our clothes, as feet of rain fell around us for 7 days straight? Which is why we take a villa in Spain instead, now...😊 (The Romans were right!).
'Summer' can come- and go... in MARCH.
I lived in southern Queensland for years. The weather was entirely predictable, if sometimes extreme. V hot, often humid, but with some cracking thunderstorms, and hail, in high summer; but mild, calm, blue and pleasant in winter.
I also spent a year in Bavaria in my late teens: cold, snowy, blue-skied winters; hot, bright, blue-skied summers, swimming in the lake. Fantastic.
I gather a place with 'the best' climate is St Helena!! Never below 15, highs of 28?.
Anyway, DH and I are outta here as soon as the DC are old enough. Motorhoming around Europe.
I hate 'grey' (and wind!).