Nearly three-quarters of England enters drought as water restrictions spread during fifth heatwave

Nearly three-quarters of England is officially in drought as the country enters another intense heatwave with reservoirs, rivers and groundwater supplies under mounting pressure. The Environment Agency says 71.3% of England is now classified as being in drought, up sharply from around half of the country at the end of July, while more than 25 million people are already subject to restrictions on water use. The crisis follows the driest July recorded across England and Wales and comes as amber heat-health alerts take effect across every English region through August 14. Government officials are warning that additional restrictions may become necessary if the combination of extreme heat, high demand and exceptionally low rainfall continues.

The worsening conditions are affecting far more than household water supplies. Farmers are reporting reduced crop yields, poor grass growth and growing pressure on winter livestock feed, while restrictions on water extraction from rivers and groundwater have expanded across agricultural regions. Wildlife authorities are also confronting exceptionally low river flows that threaten fish and other freshwater species, creating an environmental emergency alongside the pressure on drinking-water systems.

The drought is developing unusually quickly because prolonged dry weather has been combined with repeated episodes of extreme heat. Officials have described conditions in several regions as a flash drought, in which soil moisture and water availability deteriorate much more rapidly than during a conventional multiseason drought. England is now facing that accelerated decline while entering its fifth significant heatwave of 2026, increasing the possibility that water restrictions will remain in place well beyond the current hot spell.

Record-low July rainfall turned England’s dry summer into a rapidly expanding national drought

July produced extraordinarily little rainfall across England and Wales, worsening water shortages that had already developed during the spring and early summer. Met Office data show that England and Wales each recorded their driest July on record, with both receiving less than 10 millimeters of rain over the entire month. Nineteen counties, including Berkshire and Surrey, received less than one millimeter, leaving soils, rivers and reservoirs with little opportunity to recover before temperatures began climbing again in August.

The United Kingdom overall received only about 35% of its long-term average July rainfall, making the month the third driest July nationally. England experienced particularly severe conditions, with the government saying the drought area had expanded to 71.3% of the country by August 10. Roughly 45 million people now live within areas officially classified as drought-affected, while approximately 27 million are estimated to be covered by some form of water-use restriction.

Drought classification does not mean every household is immediately at risk of losing running water. It indicates that water resources and environmental conditions have deteriorated sufficiently for authorities and water companies to activate drought-management measures, including conservation campaigns, temporary use bans, abstraction restrictions and applications for special drought permits or orders.

Eight water companies had already introduced temporary-use bans across all or part of their service areas by early August. These measures commonly restrict activities such as using hosepipes to water gardens, wash cars or fill private pools, allowing utilities to reduce discretionary consumption while preserving supplies for essential domestic and commercial needs.

The government has warned that the situation could deteriorate further because the first part of August has remained unusually dry. Reservoirs and groundwater systems respond differently to drought, meaning rainfall sufficient to revive grass or gardens may still be inadequate to restore the deeper water reserves required for public supply through autumn and winter.

More than 25 million people face restrictions as pressure intensifies on reservoirs and rivers

More than 25 million people were already living under water-use restrictions by August 6, according to the Environment Agency, and subsequent estimates have placed the figure closer to 27 million as additional drought measures spread. Public water supplies remain under increasing pressure because unusually dry weather is occurring at the same time that hot conditions are increasing household consumption.

The government has recorded more than 1,500 restrictions on water abstraction, limiting how much farmers and other licensed users can withdraw from rivers, streams and groundwater. Formal restrictions are also being prepared for parts of East Anglia to protect rivers where exceptionally low flows threaten ecosystems as well as future water availability.

Agriculture is becoming one of the most visible economic pressure points. Farmers are reporting weaker crop yields and poor pasture growth, while some livestock producers have begun using forage that had been intended for winter because grassland cannot provide sufficient feed. Reduced irrigation can protect rivers and drinking-water reserves, but it can also lower agricultural output and increase costs for farmers already dealing with heat stress.

Water Minister Emma Hardy has said the government is taking measures to help farmers improve water resilience, including making it easier to develop additional on-farm reservoirs. Such infrastructure allows rainfall collected during wetter periods to be stored for irrigation during drought rather than relying entirely on rivers or public systems when supplies are already under stress.

The environmental consequences are also becoming more serious as river levels fall. Low flows can raise water temperatures and reduce dissolved oxygen, creating dangerous conditions for freshwater fish, while shrinking wetlands and ponds place additional pressure on amphibians and breeding birds. The drought is therefore becoming a competition among household supply, agriculture, industry and ecosystems for a resource that is temporarily becoming much scarcer.

England’s fifth heatwave is worsening drought conditions while increasing health risks

The new heatwave began on August 11 with amber heat-health alerts covering England through Friday evening. The UK Health Security Agency upgraded the North East from yellow to amber, joining Yorkshire and the Humber, the North West, Midlands, East of England, London, the South East and South West under the higher alert level.

Amber alerts indicate that hot weather is expected to produce significant effects across health and social-care systems, particularly among older adults, young children and people with existing medical conditions. Hospitals, care homes and community services are encouraged to prepare for increased heat-related illness while households are advised to keep vulnerable relatives hydrated and cool.

The interaction between drought and heat can become self-reinforcing. Dry soils contain less moisture available for evaporation, meaning a greater share of incoming solar energy heats the ground and surrounding air rather than being used to evaporate water. Persistent high temperatures then increase evaporation from reservoirs, rivers and vegetation while encouraging households to consume more water.

Britain has already experienced repeated episodes of extreme heat during 2026, placing additional pressure on water systems that have received insufficient rainfall between hot spells. Climate records increasingly show that temperature extremes in the United Kingdom are changing faster than annual average temperatures, with the Met Office noting that the hottest day of the year in parts of southeastern England has warmed by about 4.5°C over the longer-term climate record.

The immediate forecast therefore matters as much as the drought declaration itself. A few scattered showers would provide temporary relief to vegetation but would not necessarily restore reservoirs or groundwater. A sustained period of widespread rainfall would be needed to reverse the accumulated deficit across the most severely affected parts of England.

Water shortages are exposing England’s longer-term infrastructure and climate resilience problem

The drought is renewing debate over whether England has enough storage and distribution capacity to cope with hotter, drier summers and a growing population. Water systems depend on reservoirs, rivers and groundwater, while leakage across aging networks removes substantial quantities before water reaches customers. When rainfall remains low for months, the system has fewer reserves available to compensate for those losses and rising demand.

Long-term projections indicate that England could face a daily water shortfall measured in billions of liters by the middle of the century unless infrastructure and conservation improve. Proposed solutions include new reservoirs, water-transfer networks, leakage reduction, smart meters, desalination in selected areas and greater reuse of treated wastewater.

Building additional infrastructure will take years, meaning conservation remains the fastest available response during the current crisis. Temporary restrictions can lower demand quickly, but they do not solve the structural problem created when long dry periods repeatedly push water supplies close to critical thresholds. Utilities must therefore prepare for drought while simultaneously investing for conditions expected several decades into the future.

The 2026 drought is also demonstrating why historically wet countries cannot assume water security. Climate change can alter when rainfall occurs as well as how much falls annually, producing wetter winters while leaving longer dry periods during the months when households, agriculture and ecosystems need water most. The challenge is increasingly one of storing enough water during wet periods to withstand prolonged summer deficits.

England’s immediate outlook will depend heavily on rainfall during the remainder of August and into autumn. If significant rain fails to arrive, authorities may have to consider tighter restrictions and additional drought permits while water companies attempt to preserve supplies through the end of summer. The scale of the current drought means that recovery will require more than the end of a single heatwave, because rivers, reservoirs, soils and groundwater all need sustained replenishment after months of exceptionally dry weather.

Key takeaways from England’s expanding drought, water restrictions and fifth heatwave

• The Environment Agency says 71.3% of England is now officially in drought after conditions deteriorated rapidly through July and early August.
• More than 25 million people are already subject to restrictions on water use, with more recent estimates placing the affected population at approximately 27 million.
• England and Wales recorded their driest Julys on record, with both receiving less than 10 millimeters of rainfall during the entire month.
• Eight water companies have introduced temporary-use bans across all or portions of their service areas as public water supplies continue declining.
• More than 1,500 water-abstraction restrictions are affecting agriculture and other users, while additional controls are being prepared in East Anglia to protect exceptionally low river flows.
• Farmers are reporting reduced yields, poor pasture growth and increasing reliance on winter livestock feed because persistent drought has limited grass and crop development.
• England entered another major heatwave on August 11, with amber heat-health alerts covering every region of the country through August 14.
• Continued high temperatures are increasing evaporation and household demand at the same time that reservoirs, rivers and groundwater receive little meaningful replenishment.
• Longer-term water-security plans include new reservoirs, reduced leakage, smarter metering and stronger regional water-transfer infrastructure as hotter and drier summers become a larger planning risk.
• Meaningful recovery will require sustained rainfall rather than isolated showers because England must replenish multiple depleted water sources after months of exceptionally dry conditions.