Accept it, have fun, and you'll look great anyway!
Ditto this. I deal well with heat, though my face might turn an exceptional rosy flush which I cannot wish away and certainly cannot cover with makeup. I do not, however, deal with humidity and my hair has a mind of its own no matter what product I use. Therefore, I put on some waterproof mascara, wear sunscreen and an SPF chapstick, and apply argan oil to my hair in the morning to keep it moisturized through the heat. Anything more than that and I sort of feel ridiculous, like the women that wear high heels to the park. I'm not there to impress. I am there to have fun!