Choose a shampoo and conditioner that is made for curly hair. Some shampoos and conditioners even offer protection against humidity. After shampooing and rinsing your hair, towel dry the excess water from your hair and then apply your conditioner from roots to ends. If you hair is thin, then you may want to apply conditioner from the middle of your hair to the ends and skip the roots. If your hair is thick, then apply the conditioner all over. Then, let the conditioner sit on your hair for a few minutes before rinsing it out.

To deep condition your hair, apply the deep conditioner to your hair and then let it sit for about 5-10 minutes (following the manufacturer’s instructions). You can do other things in the shower while you wait, such as shaving and washing your face. If you are just washing your hair, then put a plastic cap over your hair and go about your normal routine until it is time to rinse. You can also warm up your conditioner slightly before you use it. This may help your hair to absorb the moisture better. To heat up your conditioner, place the bottle in a bowl of very warm water and let it sit for about 10 minutes. This should warm up the conditioner and make it easier for your hair to absorb. [3] X Research source

Use your hands first to squeeze out as much of the water from your hair as possible. Use a microfiber towel or an old t-shirt to absorb the excess water. [5] X Research source

Use a serum made with natural oils such as a Moroccan oil. Your hair absorbs the products made with natural oils better; they don’t just sit on top of your hair like products made with synthetic oils. [6] X Research source If you have thick hair, dry hair or color-treated hair, then a cream may work better. [7] X Research source If your hair is thinner, then apply it from the mid-length of your hair to the ends. [8] X Research source If you have thicker hair, then you can apply the cream or serum all over, but still focus on the ends of your hair. Straightening balms can also help to straighten curly hair and prevent it from curling up in humid weather. [9] X Research source Look for a straightening balm or cream that offers some protection from the humidity as well. In general, thicker creams will work better. They’ll help weigh your hair down and protect it from the humidity for longer throughout the day. [10] X Expert Source Shun PittmanMaster Cosmetologist, Global Salon Educator & Author Expert Interview. 11 May 2021.

If you want to blow dry, then let your hair partially dry naturally first. Or, you can let your hair air dry completely.

Blow dry your hair in a downward motion to smooth it out as you go. Brush your hair and move the blow dryer along with the brush in a downward motion. Opt for a boar bristle brush if your hair is fine- to normal-texutred. Boar bristle brushes are made from keratin, which is the same material that your hair is made from. If your hair has a coarse or thick texture, you may benefit from using a Denman brush. While you are blow drying, pay attention to the crown where frizz is really noticeable. If you don’t smooth out your roots, you’ll look like you have a halo of frizz around your head, and it can make your hair look really frizzy. [13] X Research source Make sure your hold your hair taught with the brush as your blow dry the crown of your head.

Use a cool shot of air on each section of hair that you straighten. If your blow dryer has this button it will blast some cool air on your hair. This closes the cuticle, so it seals in the moisture on your hair.

If you do not want to skip the flat iron, then make sure that you use a heat protectant product, such as a straightening balm or cream.

If you are going to blow dry or flat iron your hair, then spray your hair after you are finished. Choose a product that is in an aerosol can. The non-aerosol kind may cause your hair t frizz more easily. [16] X Research source

If possible, don’t touch your style at all while you are out in humid weather.

Some braids to try include fishtail braids, French braids, cornrows or the common three-strand braid. Opt for French braids or cornrows for longer lasting styles. Other god options for wearing your hair on humid days include buns, top knots, or chignons. If you just have to be outside for a short while until you reach your destination, then you can try putting half of your hair up with hair clips. You could also try wearing a hat or even try wrapping your hair up in a scarf.

However, keep in mind that there’s no guarantee that a straightening treatment will eliminate frizz completely. Moisture makes the hair cuticle bend and curl as it tries to absorb the moisture from the air. This is the case even if your hair has been straightened. Hair that is more fragile and porous, such as curly, wavy, kinky-curly hair and color-treated hair, is especially prone to humidity even if you have straightened it. Generally, drier hair textures are affected the most by humidity because they require the most moisture and your hair will try to get it anywhere it can, even from the air.