Wales Is in Drought. If You're Heading Outdoors There, Read This First.

July 2026 will likely be the driest month in Wales for nearly 190 years. Not a slow-burning statistic buried in a climate report. An actual, declared environmental drought, confirmed by Natural Resources Wales, covering North and South Gwynedd, Ynys Môn, Dee, Clwyd and Upper Severn. BBC News reported on 22 July that Wales has received roughly 5% of its average July rainfall, following a run of back-to-back heatwaves and a drier than usual spring. That number is worth sitting with. Five per cent.

If you're planning a wild swim on the Wye, a trail run along the Clwyd valley, a camping trip in Snowdonia, or any kind of outdoor trip in Wales this summer, the landscape you're heading into is under real stress. This piece is about what that means practically, ecologically, and physically for the people who actually spend time out there.

Wales has received just 5% of its average July rainfall. The rivers, the wildlife, and the people heading outdoors into that landscape are all feeling it.

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What an Environmental Drought Actually Means on the Ground

The phrase "environmental drought" sounds bureaucratic. It isn't. It means rivers like the Clwyd, Conwy, Dyfi, Alwen, Alyn and Clywedog are at exceptionally low levels. It means riverbeds are drying up. It means fish are dying. Gail Davies-Walsh, chief executive of Afonydd Cymru, told BBC News that some rivers have already dried up entirely, and fish kills are being reported across the affected areas.

The distinction between an environmental drought and a public water supply shortage matters. NRW is clear that drought status does not automatically signal hosepipe bans or drinking water cuts for most households. Welsh Water's own operational announcements are separate. But for anyone whose outdoor plans involve a river, a stream, a spring-fed pool, or a private water source, the picture is genuinely serious.

Wildfires have been burning across north and south-east Wales. Trees are reportedly showing autumn colour before August. A farmer in Abergele, keeping 27 cattle and 200 sheep at 1,000 feet above sea level, is carrying water a mile from town because his well has run dry. These aren't abstractions.

Wild Swimming in a Drought: The Risks Nobody Is Talking About

Wild swimming in Wales has grown enormously over the past decade. The Wye, the Usk, the Conwy, the Mawddach, the Teifi. These are beloved rivers, and people will keep swimming in them regardless of what any regulator says. I'm not going to tell you not to. But I will tell you what the conditions actually mean.

When river levels drop sharply, a few things happen simultaneously. Water temperatures rise, sometimes to levels that stress aquatic life. Dissolved oxygen decreases. Pollutants, including agricultural run-off and sewage, become more concentrated in lower water volumes. The 28°C temperatures recorded in the Wye and Usk are not comfortable swimming temperatures in the way a heated pool is comfortable. They're temperatures at which water quality deteriorates, bacterial activity increases, and algal growth accelerates.

Davies-Walsh flagged that people's frustration with water companies over sewage spills is making some less inclined to heed environmental advice. That frustration is entirely legitimate. Sewage in rivers is a genuine scandal. But the two things aren't in opposition. A river under drought stress is more vulnerable to pollution, not less. The argument for being careful with water use and the argument for holding water companies accountable are the same argument.

If you're wild swimming in Wales this summer, check current river conditions with NRW before you go. Avoid stagnant or very shallow water. Be aware that the usual reference points for safe entry and exit may look completely different when levels are this low.

Heat, Stress, and What Your Body Is Doing on the Trail

Consecutive heatwaves mean that anyone hiking, cycling, or running in Wales is doing so in sustained heat, not a one-off warm weekend. That's a different physiological challenge. Sustained heat exposure over days and weeks accumulates in ways that a single hot day doesn't.

Electrolyte loss through sweat is the obvious one. Less discussed is what sustained heat does to sleep, to cortisol patterns, and to recovery. If you've been spending long days outdoors in high temperatures and finding yourself wired in the evenings despite physical exhaustion, that's not unusual. There's a well-documented relationship between heat stress, elevated evening cortisol, and disrupted sleep architecture. We've written about this in more detail in our piece on sleep cortisol and why you're wired at 11pm, and it's directly relevant to anyone doing extended outdoor trips in these conditions.

Adaptogenic plants have a long history of use in exactly this context: sustained physical and environmental stress rather than acute single-session performance. The evidence base is mixed and I won't overstate it, but if you're curious about the research, our adaptogens evidence explained piece covers what the data actually shows, and what it doesn't. For a more specific look at two of the better-studied options, the piece on ashwagandha and rhodiola combination the evidence is worth reading alongside it.

None of that replaces the basics. Water. Electrolytes. Shade. Rest during peak heat. Starting early. These aren't exciting recommendations but they're the ones that actually matter when you're three days into a Welsh hill walk and the temperature is still climbing at 4pm.

Practical Notes for Anyone Heading Into Wales This Summer

A few things worth knowing before you go:

• Private springs and boreholes are running dry across affected areas. If you're camping wild or using remote bothies, don't assume water sources you've used before will still be flowing. Carry more than you think you need.
• The rivers Clwyd, Alwen, Alyn, Clywedog, Dyfi, Conwy and Wye are all classed as exceptionally low. Plan routes accordingly if you're crossing or following any of these.
• Wildfire risk is real. The NRW has been dealing with fires across north and south-east Wales. Open fires in dry conditions are a serious issue. Check current fire risk before lighting anything, and consider not lighting anything at all.
• Trail surfaces will be hard, cracked, and potentially unstable in places. River crossings that are usually straightforward may be easier technically but the water quality considerations above still apply.
• Weekend rain is forecast, but NRW has noted it will take time for river systems to recover even after rainfall arrives. A wet weekend does not end a drought that has been building since April.

The Outdoor Life and Daily Nutrition When Conditions Are Hard

Extended outdoor time in heat places real demands on the body. Sweat rates increase, mineral losses compound over days, and appetite often drops precisely when energy demands are highest. I started KōJō because I wanted a supplement brand built for people who actually go outside, not people who train in air-conditioned gyms. The conditions in Wales right now are exactly the kind of sustained, multi-day physical and environmental stress that daily nutrition genuinely matters for. If you want to understand what we make and why, kojo.life is the place to start.

My Honest Take

I find the framing of drought news frustrating sometimes. It tends to be either catastrophising or oddly administrative. The reality, as the BBC News report makes clear, sits somewhere more uncomfortable than either. This is serious. Rivers are drying up. Fish are dying. A farmer is carrying water a mile uphill to keep 27 cows alive. Trees are going into autumn colour in July. These are not normal conditions.

At the same time, Wales is still there. The trails are still there. The hills and the coast and the rivers are still worth visiting. Going outdoors in difficult conditions is part of what it means to actually engage with the natural world rather than just consume it on Instagram when it looks photogenic.

Go. But go informed. Know what you're walking into. Treat the water with respect, in every sense of that phrase. And use less of it than you normally would.

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