Not hottest day of year in Itchen Valley- just short of 33C on 19th July. 30C today but with a light northerly sea-breeze-busting drift, coastal areas were higher in CSE. Was accurately predicted by GFS but not MetO or BBC. GFS getting good local max temp results but not week-out 850 preds.

A very poor effort by the Met O who were going for 31 max.  With all the information available there is no excuse.  A very poor max temperature forecast.

That place has one hell of a micro climate.  Its no more than 2 miles as the crow flies yet I had a low of 16.6.

Tuesday was almost hot here - just short of 25C, yesterday a light northerly kept things very pleasant at about 21C and today it's damp and 13.9C.
So not much of a heatwave just fairly typical warmish couple of days then change.

Hampshire too- although it's been overcast here all morning, an unusually-feeling day is happening and the temperature has risen quickly- thickness on the rise again and the 15 uppers maintained.

Well and truely over here now: cool, grey and damp

Reached 27c yesterday, looks more like 17c today!

wasnt sure about the eastern extent of that cloud river associated with the front. Spilled in here again in central London. Hot spots at the 27c mark though, so it all depends on the breaks I guess. 

27.0 @ 12.30.  Sunny

The attached map shows the upper air situation:

More infill with the cloud than some models were suggesting across central parts today. Seeing readings wavering in the range of 22-24*C as occasional bouts of well-scattered but large rain drops occur.

I've been eagerly tracking a clear zone in The Channel as it journeys over - but it's taken a bit longer than I'd hoped. The sun may return by 15:00 but, being two hours past peak solar input time, the surface heating seems likely to fall short of what was hoped for (27*C or so). Such temperatures would lead to ample rising motion for any low-based convection that develops in the evening to work with. As it is, 24 or 25*C can be sufficient if there is enough instability in the mid-levels.

I have to wonder how GFS thought 29*C was going to happen in these parts today when it also showed 100% cloud cover until late afternoon. If I had to guess, I'd say it was going for most of that cloud to be thin enough for hazy sunshine to come through.

What fantasy 

The drive home from Kings Hill (near Tonbridge) started at 28c at Kings Hill but climbed to 31c in the usual hotspot along the M20 near Maidstone, thereafter it was a standard 29-30c all the way home but within 10 miles from Folkestone it dropped a little. I was greeted with a fresher feeling 25.9c at home.

Interestingly today's max of 28.0c occured at midday before the sudden onset of this light sea breeze.

Dewpoints have been higher today resulting in a sweaty feel. Its sitting at 19c now but peaked at 21c around noon. 

Been a lot more high cloud around today, otherwise the temp would have exceeded the 27.7C max that occurred around 3pm today.

Writtle managed 29.9c yesterday. Think somewhere could hit 28c today its the perfect summer's day.