Hi Shakkai,
i know, humidity in London is very similar, but not in my flat with heating on

- i do struggle to keep it above 40% and i don't really overheat my place. Can't wait for March to come! Even last summer (and we didn't have a proper hot summer) humidity in London was +- 55% so inside even lower.
I really would like have some enclosed space for my babies in a future....