It’s Autumn—So Why Are We Still Talking About Severe Drought?

The leaves are falling, the evenings are darker, and we are thinking about putting the heating on. Surely the water shortage should be over?

Autumn is supposed to bring rain.

We picture wet pavements, overflowing gutters and muddy walks. After a hot summer, it is tempting to assume that October will refill the reservoirs and put everything right.

But the calendar cannot replenish a water supply.

On 15 October 2026, the government declared severe drought in parts of Cornwall, Devon, Dorset, Somerset, East Sussex and West Sussex, following the South East and South West’s driest April to September in more than a century. It said the declaration was intended to safeguard public supplies before disruption occurred. GOV.UK

That is a sobering autumn announcement.

It also raises a question we should all understand:

How can summer be over while the drought continues?

Autumn Does Not Automatically Mean Wet Weather

We often confuse what a season usually brings with what it must bring.

October can be wet. It can also contain long dry spells. Rain falling elsewhere in Britain does not necessarily replenish the catchment supplying our homes.

Meanwhile, the Met Office provisionally identified summer 2026 as the UK’s hottest on record. That provides an important backdrop: autumn has arrived after an exceptional summer, rather than after an ordinary seasonal drying-out. Met Office

Here in the South East, the important question is therefore not simply, “Has it rained?”

It is:

Has enough rain fallen, in the right places, over enough time to restore the water we have already used and lost?

Those are very different questions.

A Drought Is a Deficit That Builds Over Time

Think of water storage as a bank account.

Rainfall provides income. Household consumption, business use and other demands make withdrawals. Evaporation and water loss also affect the balance.

A small payment into an overdrawn account helps. It does not necessarily clear the debt.

Water resources behave in a similar way. Several dry months can create a deficit that a few showers cannot reverse.

It also helps to distinguish three related problems:

What is short of water?	What that means
The weather	Less rain has fallen than would normally be expected.
The soil	Plants have less moisture available around their roots.
Rivers, reservoirs and groundwater	The water stored or moving through the wider system is depleted.

These problems overlap, but they do not recover at the same speed.

A garden can look greener while the water supplying homes remains under pressure.

Where Does the First Autumn Rain Go?

After a dry summer, some rainfall replenishes moisture in the soil before substantial recovery occurs deeper underground.

Water reaching the ground may be taken up by plants, retained in soil, evaporated, carried away as runoff or eventually pass down towards groundwater.

The balance depends on rainfall intensity, soil condition, geology, vegetation and how wet the ground already is.

In its explanation of drought recovery, the Environment Agency describes how dry soils can delay the restoration of river flows and groundwater. Autumn rain has work to do before the wider system recovers. Environment Agency: For homes and habitats.

Imagine watering a very dry flowerpot. The first water changes conditions in the compost. It does not necessarily emerge immediately from the drainage holes.

The landscape is more complicated than a flowerpot, but the comparison helps explain why wet surfaces do not prove that deeper water reserves have recovered.

Groundwater Is the Water We Cannot See

Reservoirs make drought visible. An exposed shoreline is easy to photograph.

Groundwater is harder to picture.

An aquifer is a layer of rock or sediment that stores and transmits water through pores and fractures. It is generally not an enormous underground cavern filled with water.

The Environment Agency identifies groundwater as particularly important to public supplies and river flows in southern and eastern England. Much recharge normally happens during the cooler months, when losses through evaporation and vegetation are lower. Environment Agency

That makes autumn and winter a crucial opportunity for recovery.

But an opportunity is not a guarantee.

A dry winter can leave the following spring beginning with reserves already depleted.

Can We Have Flooding and Drought at the Same Time?

Yes—and understanding this helps make sense of apparently contradictory headlines.

A short, intense downpour can overwhelm drains or produce rapid surface runoff. That does not mean it has restored groundwater or refilled the reservoirs serving the affected area.

A flooded road tells us that water has accumulated somewhere faster than it can drain away. It does not tell us how much useful water has entered long-term storage.

There can also be major differences between neighbouring catchments.

One place may receive a heavy storm while another remains largely dry.

This is why photographs of a flooded street cannot, on their own, demonstrate that a regional drought has ended.

Rivers Need Water Too

Our instinct is understandably to ask whether water will still come out of the tap.

But rivers, wetlands and the wildlife they support are also part of this story.

The government’s latest response includes closer monitoring and an instruction to prioritise public supplies where an unavoidable conflict arises with environmental requirements. That can mean retaining more water in depleted reservoirs. GOV.UK

Such decisions expose the difficult choices created by scarcity.

Water retained for one purpose may be unavailable for another. Protecting homes, agriculture, businesses and ecosystems becomes harder when the overall resource is depleted.

For me, that is one of the strongest arguments for avoiding unnecessary consumption: the water we waste belongs to a much larger system than the pipe entering our house.

“Why Should I Save Water When Water Companies Waste It?”

It is a fair challenge.

People are entitled to expect reliable infrastructure, prompt leak repairs, responsible management and credible long-term planning.

Asking households to conserve water must come alongside accountability for suppliers.

The answer is to pursue both.

We can demand better performance from water companies while checking whether our own toilet is quietly running all day.

We can support investment in resilient supplies while deciding that a decorative patio clean can wait.

Household action and infrastructure improvement reinforce each other.

The Most Useful Changes May Be the Least Visible

Water-saving advice often concentrates on obvious activities: hoses, paddling pools and sprinklers.

By autumn, many households have stopped doing those things anyway.

That makes this a good time to look indoors.

1. Check the toilet for a continuous trickle

A leaking toilet can send clean water straight from the cistern into the bowl without producing an obvious puddle.

Waterwise identifies leaking toilets as a major source of household waste; some can lose hundreds of litres a day. Waterwise

Look for persistent movement in the bowl after the cistern has finished filling. If something is wrong, arrange a repair.

A fault operating continuously can matter far more than an occasional unnecessary flush.

2. Trim shower time

Waterwise recommends shorter showers and running washing machines at their recommended full load. Both are straightforward ways to reduce avoidable use. Waterwise

Here is an illustrative calculation:

• A shower delivers 8 litres per minute.
• Each person reduces shower time by 2 minutes.
• Four people make the change each day.

8 × 2 × 4 = 64 litres saved per day.

Over 30 days, that is 1,920 litres.

Your result will depend on your shower’s actual flow rate and how often it is used. The example shows how a modest daily change can accumulate.

3. Avoid half-empty appliance cycles

Before starting the washing machine or dishwasher, consider whether another load could be combined with it.

Follow the manufacturer’s loading instructions and choose an appropriate efficient programme.

The aim is to get the required cleaning done with fewer unnecessary cycles.

4. Postpone jobs that can wait

Does the car need washing today?

Does the patio need cleaning before winter?

During a shortage, delaying a cosmetic job is a practical contribution that does not reduce comfort or hygiene.

Check your supplier’s current restrictions before undertaking water-intensive outdoor work.

A Water Butt Helps—But Its Size Matters

I have put considerable effort into reducing energy use at home, through solar generation, battery storage and changes to heating.

Water deserves the same attention: understand the system, measure what matters and reduce avoidable waste.

A water butt is useful, particularly for supplying garden plants. But it is worth keeping its capacity in perspective.

Suppose a roof has a horizontal collection area of 50 square metres.

If 5 mm of rain falls:

50 × 5 = 250 litres of rainfall over that roof area.

That is the theoretical amount before losses through splashing, leakage, evaporation or imperfect collection.

A nominal 250-litre butt might therefore approach capacity after a fairly modest rainfall event, depending on its starting level and collection efficiency.

Once it is full, further rain overflows.

That does not make the butt ineffective. It means that storage capacity, overflow arrangements and how the water is used all matter.

Rainwater stored this way is suitable for appropriate garden uses; it should not be treated as drinking water.

Make the Garden Less Thirsty for Next Summer

Autumn is also a chance to reduce future demand.

Consider:

• Mulching suitable beds to reduce moisture loss.
• Improving soil structure with appropriate organic matter.
• Choosing plants suited to the site’s soil, exposure and likely dry periods.
• Grouping plants with similar watering requirements.
• Giving necessary watering priority to newly established plants.
• Checking gutters, downpipes and water-butt connections.

A sustainable garden should become easier to maintain as it establishes.

The aim is to create a garden that works with its conditions, rather than one that relies on constant rescue watering.

Do Not Assume Restrictions End When the Weather Changes

An autumn shower does not automatically cancel a hosepipe ban.

Restrictions depend on the supplier, the area served and the condition of local resources. Rules and exemptions can differ.

Check your water company’s current guidance rather than relying on a neighbour’s situation or a national headline.

The Environment Agency’s early-October report also listed Hertfordshire and North London among the areas in drought. The severe-drought announcement in parts of six other counties should not obscure the wider pressure on water resources. GOV.UK

For those of us around Hemel Hempstead, this deserves attention too.

This Weekend: Give Your Home a Water Check

You do not need to buy a collection of gadgets.

Start with a few observations:

1. Check toilets and taps for persistent leaks.
2. Time a normal shower.
3. Review how often appliances run partly empty.
4. Check your supplier’s current advice.
5. Inspect rainwater collection connections.
6. Choose one unnecessary use to stop or postpone.

Where you have a safely accessible meter, comparing readings during a period when no water should be used may help identify unexplained consumption. Remember to account for appliances or systems that operate automatically.

The purpose is to discover where water is going.

Once you understand that, useful changes become much easier.

Autumn Is Our Recovery Window

The arrival of autumn can make drought feel like yesterday’s problem.

But darker evenings do not refill reservoirs. Falling leaves do not replenish aquifers. A wet windscreen does not reveal the condition of a river catchment.

We need sustained replenishment, responsible management and less avoidable demand.

We should expect water companies and government to fulfil their responsibilities. We can also take sensible action in our own homes.

This autumn, when the rain finally arrives, welcome it—but do not assume the job is finished.

The next summer’s resilience is being shaped now.