UK's Average Broadband Speed — 3.6 Mbps

UK consumers receive an average broadband speed of 3.6 Mbps, according to Ofcom. That’s less than the average maximum possible speed of 4.3 Mbps across the UK and significantly below advertised headline speeds. Over 60% of UK consumers currently subscribe to packages promising speeds of up to 8 Mbps.

Ofcom also noted that speeds are slowest between 5pm and 6pm on Sundays, when use of the Internet is at its highest. Consumers in London received the fastest average speeds, with those in the north east of England, Wales and Scotland receiving on average the slowest speeds.
http://www.ofcom.org.uk