Horse Health
Horse Hot Weather UK
By Kaiser Khan, EditorPublished Last updated 1 min read
Quick answer
In UK heatwaves, horses need constant shade, unlimited water, and reduced workload. Dehydration increases colic risk. If breathing stays fast at rest or your horse is dull and not drinking — call your equine vet the same day.
Key takeaways
- Many yards reduce or stop work when the combined heat and humidity make cooling difficult. Ride early or late, shorten sessions, and ensure unlimited water before and after.
- An adult horse may drink 25–50 litres daily — more in heat and after exercise. Constant clean water must be available; dehydration worsens colic risk.
- High respiratory rate that does not slow at rest, elevated heart rate, dullness, reduced sweating (in some cases), or collapse. Call your equine vet immediately.
A wider perspective: working-horse welfare and ways to help from the non-profit World Animal Rescue Network.
Field and stable management
According to the BVA and RSPCA, horses need reliable access to shade and clean water in hot weather — dehydration can increase colic risk. Check that:
- Shade is available in every paddock — trees, shelters, or bring in during peak heat
- Fresh water is checked twice daily — automatic troughs can fail
- Stables stay ventilated; avoid working in closed hot boxes
- Fly stress is managed — fly rugs and yard advice as appropriate
Riding in heat
- Exercise at dawn or dusk only during heatwaves
- Reduce intensity and duration
- Cool down slowly with walking and tepid water on neck
- Know your horse's normal pulse and respiration at rest
Heat stress vs colic
Both are emergencies. Heat stress: rapid breathing, weakness. Colic: pawing, rolling, looking at flank — see Horse health basics.
Sources & further reading
This guide draws on the publicly available UK advice listed below. Follow the links for the relevant guidance or the organisation's broader care resources.
PETHEALTH+ is independent. These organisations do not sponsor, approve, or partner with this website. Editorial sources and further reading (last updated 2026-06-25).
Continue exploring
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Related guides
Guides that mention this topic
- Laminitis in Horses
- Sweet Itch in Horses: UK Guide
- Horse Vaccination Schedule in the UK
- Hot Weather Pet Safety in the UK
Also see symptoms, symptom checker, and poison guide.
Frequently Asked Questions
- Can you ride a horse in a heatwave?
- Many yards reduce or stop work when the combined heat and humidity make cooling difficult. Ride early or late, shorten sessions, and ensure unlimited water before and after.
- How much water does a horse need in hot weather?
- An adult horse may drink 25–50 litres daily — more in heat and after exercise. Constant clean water must be available; dehydration worsens colic risk.
- What are signs of heat stress in horses?
- High respiratory rate that does not slow at rest, elevated heart rate, dullness, reduced sweating (in some cases), or collapse. Call your equine vet immediately.