What to pack for Puerto Rico in June

17 rain days a month finds every seam. A real shell, not a windbreaker.

UV index hits 10.1, the highest category on the scale.

Some islands fine you for the regular stuff.

Glare off water and sand intensifies at UV 10.1.

Insects breed in 17 rain days and 74 percent humidity.

Stinger season, unfamiliar water, and intense sun create injury risk.

Tap water isn't safe here. A filter bottle beats buying plastic twice a day.

Thirteen-hour days drain batteries faster than one outlet can charge.

Set it up before you land. Signal drops for long stretches outside cities.

Overhead bins fit carry-on travel for a month of warm clothes.

Day trips to beaches and trails need separate pack space.

Fits the overhead on every airline that matters. Skip the checked-bag line entirely.

For the passport, the chargers, and the one dry pair of socks.

Anything heavier than linen is a mistake at 88°F.

Sweat stays on skin in 74 percent humidity and 31-degree heat.

UV hits 10.1 here. Long sleeves beat reapplying sunscreen every hour.

Water temperature sits at 25 degrees and stinger season runs through June.

Wet terrain and 24 km/h wind make solid footing essential.

Direct sun for 13 hours daily burns exposed scalp and ears.

Heat and humidity pull electrolytes faster than plain water replaces them.

Cold water at 3pm is worth the weight.

Treat the clothes once and it lasts weeks.

Tap water isn't safe and heat causes dehydration quickly.

Tap water causes intestinal illness in visitors to the island.

One brick charges the laptop, phone, and camera.

Hotel and cafe wifi is shared with everyone else in the building. A VPN keeps your banking and email to yourself.

International travel and crowded beaches attract pickpockets.

Airport security and beach crowds increase bag-loss risk.

Humidity and salt air wrinkle clothes unless organized compactly.

Seventeen rain days and ocean swimming need phone protection.

Saltwater and sweat require washing every two to three days.

Stinger season requires protective coverage for ocean entry.

Heat peaks at 31 degrees with 13.2 hours of daylight daily.

Doubles as a towel, a scarf, and a cover-up where one's expected.

Seventeen rain days mean wet boots and salt spray damage.

Lips blister under UV 10.1 and salt water exposure.

Wet hands and contaminated water sources spread infection.

Sunburn and insect bites overlap in treatment needs here.

Multiple devices need charging in a single-outlet guesthouse.

A few phrases go a long way. Ten minutes a day before you leave is plenty.

International entry requires passport protection from humidity and salt spray.

International flights and shared accommodations demand luggage security.

Seventeen rain days a month and constant humidity mean toiletries stay damp unless hung to air.