21/05/2026
Understanding Your Horse’s Thermal Comfort Zone.
Horses are naturally very good at regulating their body temperature, but changes in weather, clipping, age, breed, workload, and overall condition can all affect whether they need extra protection from the elements.
As a general guide, a healthy horse’s thermal comfort zone sits roughly between 5°C and 25°C. Within this range, many horses can maintain their temperature comfortably without using excessive energy to stay warm or cool.
When temperatures fall below this range, horses begin using more energy to keep warm — especially if they are clipped, elderly, underweight, finer-coated, or exposed to wind and rain.
General Rug Weight Guide - within BETA guidelines.
15°C+
• Many unclipped horses may not require a rug.
• Lightweight sheet or no fill turnout may be needed if weather conditions are wet or windy.
10°C – 15°C
• 0g lightweight turnout.
• Suitable for clipped horses or those needing a little extra protection.
5°C – 10°C
• 50g – 100g lightweight/midweight rug.
• Ideal for partially clipped horses.
0°C – 5°C
• 150g – 250g mediumweight rug.
• Helps maintain warmth during colder conditions.
Below 0°C
• 250g – 350g+ heavyweight rug.
• Particularly useful for clipped, older, finer, or underweight horses.
Every Horse Is Different
There is no “one rug fits all” approach. Some native breeds with thick winter coats may stay comfortable unrugged in colder weather, while older horses, clipped competition horses, or finer breeds may require additional warmth much sooner.
Always consider your horses:
• Breed & natural coat thickness
• Age & health condition
• Weight & body condition
• Clipping level
• Wind, rain & humidity
• Stable vs turnout time
• Individual preference and behaviour
The best indicator is always your horse itself — check behind the ears, under the rug, and around the chest regularly to ensure they are warm but not overheating.
