Warning as Londoners Eye Thames to Cool Off This Summer
With warmer weather around the corner, the Met’s Marine Policing Unit (MPU) is sounding the alarm about the hidden dangers lurking in the River Thames and London’s waterways. They want Londoners to think twice before taking a dip.
Cold Water Shock and Deadly Currents
Inspector Stuart Simpson of the MPU said: “Despite the recent rain, we’re expecting warmer spells, and many will see the river as a tempting way to cool off. But the Thames runs at just 12°C on average, well below the 15°C where cold water shock can strike.”
He warns: “Once you’re in the water, staying afloat is almost impossible. The river’s currents are fierce — faster and stronger than any swimmer. The tides can drag you a mile in just ten minutes.”
“The water might look calm, but don’t be fooled. Think before you jump in, no matter how good a swimmer you are.”
Rescue Tips: Stay Safe, Stay Dry
Simpson urged: “If someone’s in trouble, don’t dive in yourself. You’ll be risking your own life. Instead, call 999 and ask for the Coastguard immediately.”
Officers and their partners—including the RNLI, Port of London Authority, and London Fire Brigade—are trained to race to casualties by boat, saving lives every week.
“Your best help is keeping eyes on the person, throwing a life ring if you can, and giving precise location details to rescuers,” Simpson advised.
Know the ‘Float to Live’ Technique – It Could Save Your Life
- Fight the urge to thrash if you fall in.
- Lean back, stretch your arms and legs out.
- Gently move limbs to stay afloat.
- Float until your breathing steady.
- Only then call for help or swim to safety.
The Grim Reality: Suicides and Tragedies Along the Thames
Tragically, the MPU often recovers bodies from suicides. In the first half of 2021 alone, 22 bodies were pulled from the river.
They work closely with mental health services, including a full-time nurse, to try to prevent these heartbreaking incidents.
If you or someone you know is struggling, don’t wait. Call 999 in an emergency. You can also reach out to the Samaritans free at 116 123 or visit samaritans.org for confidential support.
Remember, the Thames may look inviting but it’s a dangerous beast. Stay safe, stay out.
