Support our Nation today - please donate here

The top ten places in Wales with the most unpredictable summer weather revealed

24 May 2021 2 minute read
A rainy day in Cardiff. Picture by Jeremy Segrott (CC BY 2.0).

Looking out the window these past few days you may have thought it was autumn or winter rather than the cusp of summer.

The one certainty of living in Wales is that the changing seasons are no guarantee of seasonal weather and you should pack both sun lotion and a raincoat for any outing.

Now the ten places with the most unpredictable summer weather in Wales have now been revealed by analysts from an energy saving company.

SaveonEnergy collected historical monthly climate observations for the summer months in Wales and analysed five variables: sunshine hours, rainfall, average temperature, wind speed and relative humidity.

Each variable was then ranked to find a total unpredictability/volatility score out of 10 for each district – with a score of 10 being the most unpredictable and 1 being the most predictable.

They found that not only did Torfaen have the most unpredictable weather in Wales – but it also had the most unpredictable in the whole of the UK. Blaenau Gwent was in second place across Wales and the rest of the UK.

SaveonEnergy’s ranking of unpredictable summer weather in Wales

Gwynedd, Powys, Carmarthenshire, Neath Port Talbot, Ceredigion and Bridgend just missed out on the top ten.

The south-east of Wales dominated the list. But of course, predictable weather is no guarantee of good weather, as anyone living in Capel Curig in Gwynedd – the wettest place in Wales – will tell you.

Support our Nation today

For the price of a cup of coffee a month you can help us create an independent, not-for-profit, national news service for the people of Wales, by the people of Wales.

Notify of
Inline Feedbacks
View all comments

Our Supporters

All information provided to Nation.Cymru will be handled sensitively and within the boundaries of the Data Protection Act 2018.