Cold Weather Welfare for Horses: Wind, Rain, and Body Condition

Horses are physiologically well-adapted to cold but face welfare risks from wet, windy conditions combined with inadequate nutrition. Management must account for increased energy demands.

Key Facts

Horses' lower critical temperature is approximately 0 degrees C for dry conditions
Wind and rain increase heat loss dramatically - a wet horse in wind faces the same chill as minus 20
Older horses, clipped horses, and thin horses are most vulnerable to cold stress
Horses need 20 to 30% more energy in cold weather to maintain body weight
Field shelters should accommodate all horses in a group to prevent social exclusion

Welfare Considerations

Horse welfare in cold weather requires understanding the critical role of wind and moisture. A healthy horse with a good winter coat can cope well with temperatures below freezing in dry, still conditions, but a wet horse in driving wind rapidly loses core heat regardless of coat quality. Welfare failures occur when horses are left in exposed fields without shelter access, fed insufficient roughage to generate internal warmth, or when social hierarchies prevent subordinate horses from accessing shared shelters.

What You Can Do

Assess body condition score monthly through winter to catch weight loss early
Provide field shelters large enough for all horses in the group to use simultaneously
Increase hay provision in cold, wet, or windy weather beyond summer rations
Monitor clipped horses closely as they lose insulation and need rugging
Check water sources daily to ensure they are not frozen