Instead of blow-drying (you get enough heat exposure from the sun already!), spritz on and scrunch in an alcohol-free texturizer like Pantene Pro-V Texturize! Spray Wax, $6, drugstores, then let it air-dry, says celebrity stylist Ted Gibson. “Your locks will take on their own natural wave for a gorgeous, beachy hair look,” he explains. Plus, you’ll get out the door a lot quicker!

2. Ditch an Eye Product

When the heat peaks, bag the mascara and just use a waterproof liner close to the lash line, like Wet N Wild H2O Proof Blending Eye Pencil, $2, drugstores, says celebrity makeup artist Valerie Sarnelle. Or do the opposite: Brush on some mascara and skip the eyeliner. You want to go light on your peepers because too much product around them on a hot, humid day can lead to smudging and a major raccoon look.

3. Be Smart With Shadow

Eyeshadow is usually one of the first things to go — or cake, or crease, or run… yuck! — on a balmy day. Keep the color in place by priming your lids with a skin-toned shadow, then applying a light wash of color. Or try Shiseido Hydro-Powder Eye Shadow, $23, sca.shiseido.com, a waterproof, crease-resistant miracle.

4. Go Easy on the Foundation

Only use base where you need it, says Neutrogena expert Matin Maulawizada, and put it on with a light touch. “Skin doesn’t sweat off the makeup when it’s applied sheer,” Maulawizada adds. Also, when the temps soar, consider switching to a longer-lasting formula like Rimmel Cool Matte 16H Mousse Foundation, $8, drugstores, an air-light soufflé infused with 50 percent purified water.

5. Go for Chic, Not Sleek

“The best way to disguise a greasy, sweaty scalp is to keep hair loose,” says Nicole Descoteaux, senior stylist at Butterfly Studio in New York City. Instead of a tight ponytail, try a loose chignon with a few hairs coming down around your face. If your hair’s too short for a bun, push it back with a headband, one with tiny teeth, like Capelli New York Headbands, $6 for 3, 212-684-3344 for stores. The headband adds separation to an oily hairline so it won’t look so slick.

6. Let Moisturizer Soak In

“Most women put on sunscreen first, then moisturizer, then makeup. That leaves them looking greasy,” says Sarnelle. She suggests applying your sunscreen and moisturizer and letting them sit before wiping off any residue and applying makeup. To reduce shine even more, and to set your makeup, spritz a little oil-control spray, such as Cosmedicine Medi-Matte Oil Control Spray, $35, sephora.com, on your T-zone.