Windows 10 - Guess my location

There's a handy weather app provided with Windows 10. Naturally, I have set it for beautiful Ruislip. So imagine my surprise on seeing the following this morning:

I always thought I was in the UK but Microsoft, or the people who supply the weather stats, know better. It seems I may have been moved, inadvertently, to the Netherlands. I'm not sure if this will jeopardise my citizenship post-Brexit but if it qualifies me for duty frees then Hans - mach dampf!