Yikes, that's 94F! That may not sound too hot for many southerners, but you're surrounded by the ocean, so imagine just like me downwind from most of the Great Lakes, & right in between 2 of them, it's a very damp, swampy, sticky, sweaty, humid heat. In Phoenix, & Las Vegas, it's dry dessert. It's easier to keep a little cooler because perspiration evaporates faster in the dry air. In humid air it just lays on you getting sticky, smelly, & attracting bugs. Dry air is like air coming from a hair drier. Humid are is like air coming off a boiling pot or steam room. Your perspiration doesn't evaporate to keep you cool.
Air conditioning works on the same principle. The refrigerant evaporates inside of the cool side, taking the heat with it, then under pressure, it re-condenses on the hot outside part of it to release the heat. Then it's pumped back to the cool side to evaporate again.
That's why most weather peeps include things like heat index, wind chill, or "feels like" temperatures in their reports. Humidity slows evaporation off the body so it feels hotter. Wind & dry air remove heat off the body more. An 85F(29C) day at humidity of 75% or higher can feel as hot a 100F(38C) or more, & be just as dangerous to some people... especially those who aren't used to higher temperatures.
According to my weather feeds it got up 91F(33C) near you, but I guess it can get a little hotter a few miles further inland away from cooler water. I'm seeing 68F(20C) around you now, but most of the rest of the UK is 57-62F (14-17C) this morning (pre-dawn UK time). Cooling down there for the next 2 weeks. Today it will only get up to 78F(26C) there, & a high of 75F(24C) for Friday. Then highs down to around 70F(21C) until Mon when they say it will go up to 76F(24.4C). But those long range forecasts tend to be way off. Looks like rain for you Sun, Tue, & maybe Wed.