Wales Logs Less Than 2% of Expected July Rain as First UK Drought of Summer Is Declared

Parts of North Wales measured less than 2% of the rain they would normally expect in July before the month was even half over, and on 23 July 2026 Natural Resources Wales answered that number with the first official drought declaration of the British summer ²³. The order covers North Gwynedd, Ynys Môn — the Welsh name for Anglesey — South Gwynedd, the Dee catchment in Wales, Clwyd, and the Upper Severn, a sweep of country that takes in some of the most water-sensitive ground in the principality ⁷⁸.

To feel how thin that 2% really is, hold it against a calendar. July is supposed to be the wettest stretch of a Welsh summer, the month that tops up reservoirs, greens the hillsides and carries rivers through the lean weeks of August. Across Wales as a whole, only about 5% of the average July rainfall had fallen by the time NRW pulled the trigger ³¹¹. In the worst-hit patches of the north, the sky had effectively stopped delivering. The Met Office records that frame the warning go back nearly 190 years, and July 2026 is now running ahead of all of them ²³⁵⁶¹⁰.

Reporting from across the affected catchments describes a landscape that has given up waiting. Reservoirs sit visibly low, the kind of low you can read from a hilltop. Countryside that should still be high summer green has turned the colour of晒ed straw weeks earlier than normal, and farmers are watching crops stall and livestock water run short during what is supposed to be the peak of the growing season ⁵⁶¹⁰. On Halkyn Mountain in Flintshire, firefighters have been called to blazes fed by ground that has no moisture left to give ².

River levels in the region are running towards all-time lows, the second beat in a pattern that has stacked up over months: successive heatwaves, dwindling flows, and a July that simply has not turned up ³⁵⁶⁷¹¹. Two days before the drought order, on 22 July, NRW had already shifted north and south-east Wales into the "prolonged dry weather" tier — the formal stage that sits one rung below drought and is meant as a warning ³¹¹. The 23 July declaration is what happens when the warning is not heeded by the weather.

The list is more than a roll-call of counties. It traces the spine of North Wales from the Llŷn Peninsula in the west to the English border at the Severn, and it sweeps up the rivers and reservoirs that supply drinking water, agriculture and hydro-power across a wide arc of the country ⁷⁸. When NRW moves this much of Wales onto the drought register at once, it is signalling that the failure is systemic, not local.

NRW's order is the first, and is unlikely to be the last. Officials say other parts of the United Kingdom are being watched closely, with particular attention on Eastern and Southern England, where the dry pattern has bitten hardest outside Wales ²⁵. South-east England has already recorded its longest unbroken spell without measured rainfall in more than 30 years ⁵, and several English areas were sitting at the "prolonged dry weather" tier ahead of any drought call ⁶¹¹. If the high pressure holds, further declarations are a question of when, not whether.

The Welsh story itself moved quickly after 23 July. Around 30 July 2026, NRW extended the drought designation to the whole of Wales, with the agency warning that sustained high temperatures were causing the condition of the natural environment to "deteriorate" ⁹. What began as a North Wales declaration had become, inside a week, a national one.