London has a special microclimate and pleasant weather all year around. No extremes and less rain than other parts of the country.
To say it’s pleasant year round is probably a bit of a stretch for most.
It is hard to reconcile this with having actually lived there. The only benefit to the weather in London is it rarely gets very cold. Other than that, it gets very dark winters, it’s rarely sunny, when it gets too hot it’s unbearable because nowhere has aircon, and it’s usually drizzling.
The weather is appalling.