It is important to remember Costa Rica's climate when packing your suitcase. Costa Rica has a tropical climate, so the average temperatures, even in winter, range from 71-81 degrees Fahrenheit. Cotton is the best fabric for these conditions. Shirts made from cotton are great shirts to bring to Costa Rica. T-shirts and tank tops are great when hanging out and sightseeing. Loose button-up shirts for men, blouses for women are must-haves for Costa Rican travel. Depending on resort rules or hotels rules, sometimes dressing up is necessary; cotton button-ups or blouses provide dressy, stylish attire while still keeping you cool.
Shorts are great to bring to Costa Rica. Wearing shorts made from cotton will keep you cooler. Avoid dark colors. Dark colors absorb heat and sunlight; light colors reflect more of the sun's rays. One of the most popular activities in Costa Rica is exploring parts of the rainforest; bringing the right pants for this occasion is important as shorts don't provide protection from the insects and animals that live in the rainforest. For men, light khaki pants are great options; for women, cotton slacks are a great option. As with shirts, depending on the hotel, sometimes dressy attire is required. Men should pack a sports jacket, white cotton shirt, and cotton dress pants for evenings at the hotel or resort. For women, bring a summer cocktail dress for evening wear, make sure the fabric is light and allows air flow.
Bring swim suites. Costa Rica is famed for its beaches, make sure you pack a couple of swimsuits. Any type of swimsuit is appropriate. When on the beach, bring some clothes that you can wear over a swimsuit for walks on the beach or if you want to grab some food at a beachside restaurant. For women, a nice wrap dress or long tank top and a pair of shorts are easy to pack in a beach bag and to change into on the beach. For men, a simple shirt is appropriate. Sun protection is vital when going to Costa Rican beaches. Bring a hat and sunglasses. The sun's rays are stronger when closer to the equator, and wearing a hat will help prevent a sunburn on the scalp and sunglasses prevents the sun from hurting your eyes.