Although humid locations have plenty of water in the air, that doesn't mean you don't need to moisturize. Even if you have oily skin, you still need to use a daily moisturizer -- oil seals in moisture, but it doesn't replace the moisture you lose each day [source: Bouchez]. But be sure to use a noncomedogenic moisturizer -- meaning it won't clog pores -- because when dirt, oil and dead skin clog pores, your skin can break out [source: Mann].
Moisturizers that contain humectants work best in humid areas -- they absorb water from the air and require a high level of humidity to be effective. Look for urea, glycerin or alpha hydroxy acids on the ingredient list [source: Mayo Clinic]. You may also want to try a moisturizer that contains sunscreen. Whenever your skin will be exposed to the sun -- even on cloudy days -- you should wear a sunscreen with a sun protection factor of at least 15 [source: American Academy of Dermatology].
Humid weather often goes hand in hand with high temperatures. For tips on how to moisturize in hot climates, read the next page.