Glare warning as wrong sunglasses could leave drivers unprotected

Last Updated: 11 May 2026
Read time: 2 min

Expert: Greg Wilson
Founder, CEO & Insurance Expert

Author: Katie Gawley
Insurance PR Writer

Fact-checked by: QuoteZone Editorial Team

Written in line with our Editorial Guidelines

Drivers are being warned that low sun glare could be one of the most dangerous hazards on UK roads this season, as sunrise and sunset align with rush hour for millions of commuters.

Car insurance experts at Quotezone.co.uk are warning motorists that a mix of sunny spells and showers can create blinding glare – significantly reducing visibility while driving, making accidents or distraction more likely.

If drivers have an accident due to poor vision, car insurance is unlikely to protect them. 

Drivers need to check the lens filter category on their sunglasses label. The average pair of sunglasses is categorised as a number two, with a marginal tint and transmitting 18-43 per cent light, with categories one-three acceptable for driving while category four sunglasses are much darker and shouldn’t be worn for driving.*

If drivers are worried their glasses may be too dark, an optician can check the lens filter. Note small fashion sunglasses which are often designed as an accessory, do not provide any real protection from the sun’s rays. If a driver’s vision is impaired, it could be considered driving without due care and attention.

Rule 237 of the Highway Code dictates that drivers must slow down and should come to a stop if necessary when dazzled by bright sunlight. Failure to follow this rule can carry serious consequences including fines of up to £5,000, nine penalty points and a potential driving disqualification.**

Greg Wilson, car insurance expert and CEO at Quotezone.co.uk, said: “This can be a dangerous time of year for drivers, with glare from the sun creating hazardous driving conditions. Unfortunately, only a few seconds of sun glare could cause all sorts of issues.

“While low sun might not seem like an issue, the glare created can cause reduced visibility, making pedestrians, other motorists or hazards on the road much more difficult to see.

“When driving in these conditions, it’s really important to follow safety precautions. These can actually start before you get in the car, making sure that your windscreen is clean inside and out.

“It’s also important to make sure you are prepared with the right eyewear and keep a spare pair in the car in case the weather changes. If you have an accident on the road and your vision is responsible, your insurance is likely to be invalid.

“Car maintenance is also important, as fixing any cracks in your windscreen can prevent sunlight scattering, which dazzles drivers and makes it hard to see the road and other road users ahead of them.”

The experts at Quotezone.co.uk are sharing ways to help ensure safety behind the wheel during dazzling sunny spells:

Clean your windscreen

It’s important to make sure that both the inside and outside of your windscreen are clean before setting off during sunny periods. Dirt, dust and pollen stuck to your windscreen can create scattering in bright light, dazzling motorists and making it harder to see the road.

Wear protective sunglasses

Wearing sunglasses may seem like an obvious solution, but you may not actually be wearing the appropriate eye protection recommended for driving. Category four sunglasses have a very dark tint and therefore can’t be worn for driving at any stage.

Keep a safe distance

If the sun’s rays are causing glare on your windscreen or the road ahead, make sure to leave a longer distance between yourself and the car in front. Being unable to see other drivers’ actions can be extremely hazardous and cause avoidable accidents.

Keep on top of car maintenance

Any cracks or scratches in your windscreen or bonnet could cause sunlight to scatter. This will distort your view of the road and your surroundings. If you are in doubt about the safety of your windscreen, make sure to have it checked by a professional. 

Regular check-ups

Drivers need to ensure they have good vision, having eyes checked every two years, including testing to see if prescription lenses are needed for sunglasses. Opticians can also advise on sun and glare protection options and special driving tints.

As one of the largest price comparison sites in the UK, Quotezone helps over 4 million customers each year, compare and find savings on all sorts of essentials, such as car, home and van insurance. 

References:
*https://www.college-optometrists.org/clinical-guidance/guidance/knowledge,-skills-and-performance/examining-patients-who-drive/tints-and-driving
**https://www.gov.uk/guidance/the-highway-code/driving-in-adverse-weather-conditions-226-to-237