Close on the sunny side during the day. If the air on the shadow side is cooler, less humid or same as inside, open that side. If your home is more humid or hot than the sunny side, close it just enough to prevent sun ray for entering.

If the heat is not also damp, put wet clothes next to windows or fan for natural refreshment. You can also spray water on your curtain.

Wear natural fiber, coton or lint. Loose clothes, that does cover you body. This way, the evaporation of sweat cools you down. You will also smell much less than if you are wearing synthetic fibers.

Wash your feet, your face, your forarm with water regularly. Do not use cold water, room-temperature or fresh is better but go all the way to the articulation (ankle, elbow), wash inside and outside and let the water dry on you.

Drink small amount of water regularly. Once again not cold.

Keet your heat cover when you expose yourself to the sun. When you get home change out of your clothes that were heated by the sun.

Do not over exercice.