[header] How to keep a hamster cool in hot weather [title] Watch for overheating. [step] Hamsters are very sensitive to the heat and can overheat easily. Keep an eye out for these symptoms of heatstroke : [substeps] Panting bright red tongue slobbering depression weakness lack of movement convulsions [title] Move his cage to cooler part of the house. 
[step] Walk through your home and try and find where it is the coolest. Try and move your hamster's cage there.