Andy Champ wrote
John Williamson wrote

1,304mm per year in Canberra, and 762mm per year in London. (1931 - 1960 averages)

Obviously some bits of the UK are wetter, but it's not much over 1500mm per year, even in the lake district.

Canberra's up in the mountains (and pretty). googles Sydney, on the other hand only gets... 1218mm.

How come it never seems that wet?

You dont get that much drizzle.

Melburg in winter on the other hand...

It gets substantially less rain than Sydney too.