Drink-driving might traditionally be associated with Christmas parties and the festive season, but new analysis of Department for Transport figures suggests the greatest risk actually comes during the summer.
Over the last decade, August has recorded an average of 721 drink-drive casualties resulting from 485 collisions each year, making it the highest-risk month.
July follows closely behind with an average of 704 casualties and 474 collisions. By comparison, December averages 663 casualties from 459 collisions.
Across the summer months of June, July and August, drink-drive casualties have been around 16% higher than between December and February.
For employers and fleet operators, it’s a reminder that alcohol-related road risk isn’t just something to reinforce ahead of the Christmas party.
Why Is Drink Driving Higher In Summer?
There are several reasons why summer can create increased risk.
Longer evenings, holidays, barbecues, festivals and social events can all create more opportunities for drivers to consume alcohol away from home.
Fine weather can also make drinking feel more informal. A couple of drinks at a barbecue or in a pub garden might not carry the same psychological warning signs as a Christmas party, but the impact on driving ability remains the same.
There’s also the potential morning-after risk.
A driver who drinks late into a summer evening may still have alcohol in their system when they get behind the wheel for work the following morning, even if they feel perfectly capable of driving.
And alcohol may not be the only factor.
Hot weather and disrupted sleep can contribute to fatigue, while dehydration can affect concentration and alertness. Combined with alcohol, these factors create another potential risk for anyone getting behind the wheel.
What Does This Mean For Fleets?
The first step is recognising that drink-driving awareness shouldn’t be treated as a once-a-year exercise.
Drivers should understand that company alcohol policies apply throughout the year, including social drinking outside working hours where it may affect their ability to drive safely the following day.
Fleet managers should consider reminding drivers that they should never attempt to calculate whether they are under the legal limit themselves.
If there is any doubt about whether somebody is fit to drive, the safest option is not to drive.
Clear reporting procedures are important too. Drivers need to know what they should do if they believe they may be unfit to drive and managers need a consistent process for responding to those concerns without creating pressure to continue with a journey.
Regular licence checking and ongoing risk monitoring can also help employers identify drink-driving convictions, endorsements and wider patterns of higher-risk behaviour.
At Driving Monitor, Licence Monitor and Risk Monitor give fleets greater visibility over those developing risks, helping managers intervene before they contribute to something more serious.
Drink-driving may receive the most attention during winter, but the figures suggest fleets cannot afford to treat it as a seasonal problem.
For businesses managing people who drive for work, alcohol risk needs to remain part of the road safety conversation all year round.
