Every heatwave produces the same kind impulse: shave the thick coat off and give the cat some relief. For a double coat it is exactly the wrong kindness. The dense undercoat and guard hairs together insulate her from heat as well as from cold, and removing them exposes skin to sun and can leave the regrowth patchy for seasons. What actually helps is less coat where it counts — the loose undercoat combed out, in short sessions, at the cool end of the day.
Why the double coat stays on in summer
A double coat works like insulation in a wall: it slows heat moving in both directions. The part that genuinely burdens her in hot weather is shed undercoat still trapped in the coat, holding warmth against the body and felting where it mats. Combing in layers, from the skin outward, removes precisely that dead material while leaving the working coat intact. Part the coat as you go and judge by the roots: when the comb passes cleanly to the skin in each section, that section is done, however thick the surface still looks.
Brief sessions at the cool end of the day
Groom early or late, in her coolest room, and keep the session short enough to finish before she warms up under your hands. A few calm minutes in layers clears a section properly; you can take the next section tomorrow rather than turning one sitting into an ordeal. Have cool water within her reach and a cool resting place ready for the moment you stop, and let the session end the same way each time so she can anticipate it. Use the contact for the checks heat makes important — skin beneath a mat can redden quickly, and a cat moving less in the heat grows claws long without wearing them down.
Reading the cat, sharing the work
Her signals outrank your plan. Panting, restlessness, repeated attempts to leave, or ears and skin feeling hot all end the session on the spot, finished or not, and soaking her coat as a shortcut to cooling is not a substitute — it wets the insulation you have just cleared and buys minutes at best. Hot-day grooming is also a duplication trap, because several kind people can each decide to help the cat and collectively handle her three times in an afternoon. Divide the days and the sections between helpers, and note which layers were cleared, so help adds up instead of repeating.
Recorded through Care Teams in KinsLe, each brief session leaves a timestamp behind, and the next groomer works the following layer instead of starting over.