23/06/2026
Wednesday 24 June β Friday 3 July 2026
Based on the 06z GFS Model Run
Heatwave Peaks Midweek Before Fresher Atlantic Air Brings a More Changeable Start to July. βοΈπ₯β‘οΈπ¦οΈπ
Wednesday 24 June
A hot summer day across Wales with high pressure still dominating. Sunshine will be widespread from morning through to evening, although a little high cloud may drift north later in the day. Inland areas of south and east Wales will experience the highest temperatures.
Temperatures
* North Wales: 26-30C
* Mid Wales: 28-32C
* South Wales: 30-35C
Winds
Light southerly or variable, generally below 10 mph.
Summary
Hot, sunny and dry with temperatures well above average.
βΈ»
Thursday 25 June
Another very warm day, though signs of change begin to appear. Sunshine will still be the dominant feature, but cloud will gradually increase from the west through the afternoon and evening. Most areas remain dry, although western coastal districts may see the first hints of approaching Atlantic weather overnight.
Temperatures
* North Wales: 25-30C
* Mid Wales: 27-32C
* South Wales: 28-35C
Winds
Southwest 10β15 mph.
Summary
Still very warm and humid, but cloud increasing later.
βΈ»
Days 3β10 Summary
Friday 26 June
Cloudier with outbreaks of rain moving into western areas. Eastern Wales may remain warm and largely dry for much of the day before rain arrives later.
Saturday 27 June
A fresher day with sunshine and scattered showers. Temperatures easing back to around 19β23Β°C.
Sunday 28 June
A mix of sunny spells and showers, most frequent across western and northern districts.
Monday 29 June
A ridge of high pressure briefly builds. Many areas becoming dry with sunny intervals and lighter winds.
Tuesday 30 June
Generally pleasant with a mixture of sunshine and cloud. Temperatures close to average for the time of year.
Wednesday 1 July
The 06z GFS indicates another Atlantic system may move close to the UK, bringing an increased risk of showers or rain, particularly in western areas.
Thursday 2 July
Changeable conditions continue with sunshine and showers. Temperatures around 18β22Β°C.
Friday 3 July
Further sunshine and scattered showers are likely, though confidence is naturally lower by this stage.
βΈ»
Overall Outlook
The 06z GFS continues to show a fairly clear sequence:
π₯ Wednesday and Thursday: The hottest part of the forecast with temperatures potentially reaching 29Β°C inland.
βοΈ Friday: Transition day as Atlantic weather begins to return.
π¦οΈ Weekend onwards: More typical British summer weather with sunshine, showers and temperatures closer to average.
While the hot spell is relatively short-lived, there is no sign of a prolonged cool or wet period developing. Instead, conditions look generally pleasant with rainfall amounts remaining fairly modest.
