What I’ve learned about driving through flood water safely as record rainfall sweeps the UK

Driving through flood water can be rather daunting, but knowing what to do can save your car. I’m a motoring expert, and here are things to consider before hitting the flooded road. 

The UK has seen well above-average rainfall this winter, contributing to saturated ground and increased flood risk. In fact, January 2026 recorded higher-than-normal precipitation across the country, according to the Met Office.

I never thought I’d be testing my driving skills in flood water – heavy rain and blocked drains have sometimes left me with no choice. Driving through floods isn’t just inconvenient; it can be downright dangerous if you don’t know what you’re doing. Here’s what I’ve learned so you can stay safe and protect your car.

Remember, you can buy a brand new or used car right here on Carwow. And you can sell your car, too. We’re here to help you through every step of your car-changing journey.

What causes flooding?

Flooding doesn’t only happen during hurricanes or major storms. Even a moderate downpour can create hazardous conditions. I’ve seen roads turn into rivers, and learned that this is due to:

• Heavy rainfall
• Blocked drains
• River overflow
• Urban developments on flood plains

Basically, flooding can happen anywhere. So, I’ve found it’s best to be prepared.

Driving in heavy rain

Before I even approach flood water, I make sure I’m ready for the heavy rain itself. Here are some helpful tips that I follow:

• I always check that my wipers are working and my tyres have at least 3mm of tread. Slipping in the rain is no laughing matter.
• Stopping distances double in wet conditions. I’d advise keeping a safe gap, at least up to four seconds behind the car in front, and driving cautiously.
• If my car starts to aquaplane, when a layer of water builds between the road surface and the tyres of your car, I gently ease off the accelerator and let the car regain traction. Never suddenly brake.
• Poor visibility is dangerous. I switch my lights on manually rather than relying on automatic settings, which is as much about helping others see me as it is about seeing the road ahead.

Flowing water? Just don’t

One thing that’s an absolute no no: never drive through moving water. Even shallow flowing water, around 30cm deep, can sweep a car away. The risk just isn’t worth it. So, I’d strongly recommend you always turn back if the water is moving.

Standing water: proceed with caution

If the water isn’t moving, I treat it carefully. Here’s my approach:

1. I step out and measure the water with a stick. If it’s above my car’s lowest points, such as the front bumper or door sills, I don’t risk it.
2. Look for hidden hazards as water hides debris and raised drains that can damage your car.
3. I wait for other vehicles to pass, going one at a time. If a car ahead gets stuck, I don’t want to get trapped behind it.
4. Roads usually rise in the middle, so I stick there to avoid soft edges or obstacles, and keep the water at its most shallow.
5. I keep my speed at a consistent 3-4mph to create a bow wave, protecting my engine from water.
6. In first gear, I maintain high engine revs so water doesn’t enter the exhaust. For automatics, I lock into a low gear.
7. Once I’m through, I gently press the brakes to dry them and to make sure they’re working.

Can I drive an electric car through floods?

I’m yet to drive an EV through a flood, so I can’t personally vouch for this. But I spoke to Carwow’s expert reviews team who said the idea that EVs can’t drive through water is a myth. Modern electric vehicles are surprisingly resilient – they’re sealed, and batteries are protected in waterproof enclosures.

That said, I’d still avoid deep water, the same as I would in a petrol or diesel car. Even EVs can be damaged if water reaches critical areas. Always check the manufacturer’s guidance on water fording and test its brakes after any wet crossing.

My key takeaways

Yes, driving through floods can be scary, but preparation makes all the difference. Here’s what I always remember and recommend:

• Avoid moving water entirely.
• Always check depths and hazards.
• Drive slowly and steadily through standing water.
• Keep engine revs high.
• Test the car’s brakes after.
• Don’t take unnecessary risks and avoid floodwater wherever possible.

Being cautious can save you a lot of hassle and money. I’ve learned that knowing when not to drive is just as important as knowing how to drive safely through water.

Car change? Carwow!

Looking for a new set of wheels? With Carwow you can sell your car quickly and for a fair price – as well as find great offers on your next one. Whether you’re looking to buy a car brand new, are after something used or you want to explore car leasing options, Carwow is your one stop shop for new car deals.

Click here to follow us on WhatsApp, where you can keep up-to-date with all the latest news, reviews, advice guides and videos.