British food production is having its hardest year in four decades. Around 71 per cent of England by land area is formally in drought and more than 27 million people live under hosepipe restrictions. The wheat harvest — the earliest since records began — is coming off the combine well below par. Grass has stopped growing across much of the country, pushing livestock farmers into winter feed stores in July. On 14 August the government announced a £65mn drought package, which the National Farmers’ Union welcomed while warning that cashflow, not Capital grants, is the immediate problem. For shoppers, the pressure is already visible in wholesale vegetable prices up 40 to 90 per cent.

Ten regions in drought as England’s reservoirs drain

The Environment Agency’s weekly report for 7 to 13 August 2026 placed ten of England’s areas in drought and four more in prolonged dry weather, with the East Midlands, Lincolnshire and parts of Kent escalating that week.

Reservoir storage stood at 65.9 per cent on 11 August, 13.8 points below the long-term average for the date. England had received just 4mm of rain in August, roughly 6 per cent of normal, and only 9 per cent of monitored river sites were running at normal flows. Section 57 spray irrigation restrictions ran from 10 August to 31 October, capping how much water growers can put on crops.

The turnaround has been abrupt. England saw about 150 per cent of normal rainfall in January and 170 per cent in February, with reservoirs near 94 per cent capacity, before spring and summer emptied them.

The worst cereal harvest since 1984

Analysis published on 5 August by the Energy and Climate Intelligence Unit put the 2026 UK cereal and oilseed harvest on course for 19.5mn tonnes — the weakest in Defra records going back to 1984, against pre-heatwave forecasts of 21.3mn to 22mn tonnes. ECIU valued the lost output at £305mn to £390mn at current ex-farm prices.

The AHDB’s harvest report for the week ending 26 July, compiled by the Andersons Centre from 60 farms, showed wheat averaging 6.8 tonnes per hectare, down 13 per cent on the five-year average, with yields below average on 90 per cent of farms. Oilseed rape was the exception at 3.9 t/ha, 17 per cent above average, largely because it is cut before the worst of the heat.

Grass stopped growing and dairy is paying for it

ECIU analysis of AHDB data showed grass growth 46 per cent below average in the week ending 31 July, with the season now projected to finish at 77 to 86 per cent of recent averages. That leaves a dairy feed Deficit of roughly four months of feed per hectare.

UK milk deliveries fell by around 25 million pints during the May and June heatwaves as heat-stressed cows ate less and produced less. The 2018 drought cost a typical 110-cow upland herd about £8,000, close to a fifth of its beef gross margin. Many farms now face a second consecutive winter with depleted forage.

Potatoes, broccoli and a wholesale price shock

Fresh produce has moved fastest. By early August, wholesale potato prices were up more than 40 per cent, tomatoes more than 60 per cent and iceberg lettuce more than 90 per cent. Broccoli yields halved in Cornwall and English pea volumes fell by about a third. Potatoes need roughly 350mm of water through the season, which is precisely what has not fallen.

Imports are a partial fix at best, since Dutch, Belgian, German and Polish suppliers faced the same heat. Retailers including Tesco (LSE: TSCO) and Sainsbury’s (LSE: SBRY) have been sourcing from Spain during what should be peak British season.

What the £65mn package actually contains

The 14 August measures include £50mn of extra funding for the Sustainable Farming Incentive in 2026, taking that budget to £290mn, plus £15mn for on-farm reservoirs, planning guidance to ease reservoir construction, and greater flexibility within agri-environment schemes. NFU president Tom Bradshaw called it “welcome” but said more detail was needed on how the measures would work in practice, pressing for cashflow support alongside capital grants.

The financial squeeze that predates the weather

Defra’s farm Business income figures for England in 2024/25 showed cereal farms averaging £49,700, while dairy more than doubled to £153,800 on strong milk prices. The delinked Basic Payment kept shrinking — down 24 per cent to £18,600 for cereal farms — with agri-environment income rising from £10,100 to £21,100 per farm to partly offset it.

Inheritance tax is the other structural pressure. From 6 April 2026, agricultural and business property relief carries a combined £2.5mn allowance for full relief, with 50 per cent relief above. That threshold was raised from the £1mn originally announced.

Where the cost lands for investors and consumers

Headline food Inflation remains deceptively calm. CPI food and non-alcoholic drink prices rose 1.7 per cent in the year to June 2026, down from 2.2 per cent in May, though the Food and Drink Federation has forecast at least 9 per cent by year end. Producers have so far absorbed much of the input cost pressure rather than passing it on — a capacity that is finite.

Sainsbury’s reported first-quarter retail sales excluding fuel up 3.1 per cent on 30 June and held guidance of roughly £1.045bn retail operating profit, while flagging fresh food Supply chain inflation building from midsummer. The read-across runs down the chain: Cranswick (LSE: CWK) and Hilton Food Group (LSE: HFG) are exposed to feed-driven livestock costs, while Associated British Foods (LSE: ABF) spans sugar beet, milling and bakery. None has quantified a drought impact, and the effect should surface in winter reporting rather than now.

Thin buffers and the risk of a second dry winter

The supply chain has little slack, and the UK imported 87 per cent of its fruit and 45 per cent of its vegetables in 2025. Europe offers no cushion: Moody’s put lost output from last summer’s European heatwaves at €43bn, against only about €500mn of insured payouts. Nor is the weather stabilising — summer 2026 is on course to be the UK’s warmest on record.

What happens next

Autumn rainfall and reservoir recovery will determine whether restrictions persist into 2027 and whether autumn drilling goes in properly. The speed of grant approvals will decide whether the £65mn changes anything before the next dry spell.

Conclusion

The 2026 drought has exposed how little water storage and financial buffer British farming carries into a bad year. The support package addresses the right problems but arrives after the harvest that needed it. With the sector already absorbing shrinking direct payments, the cost of extreme weather is being borne by producers first and consumers second. That order is unlikely to hold beyond this winter.