Visiting London mid October. Would like to keep sightseeing plan flexible for weather. Debating on booking ahead most attractions. How busy are most attractions mid week that time of year?
School children are on holiday for the week commencing 28 Oct. During this week, expect tourist attractions to be busy. Otherwise, on weekdays, I’d expect most sites to be reasonably quiet
The clocks change during the night of 26/27 Oct,( I think)so it will start to get dark early. It’s worth checking if any outdoor attractions you’re planning to go to are still open. If you’re planning to travel around anywhere by road, I think the 26th would be very busy.