What to pack for Rio de Janeiro in January

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

A UV index of 9.6 burns exposed skin in under 15 minutes.

Glare off water and pavement intensifies at this UV level.

Humidity at 80 percent keeps insects active all month long.

Check ankles and, if there's a dog, paws and ears every night.

Cuts from reef, stings from jellyfish, and heat exhaustion happen here.

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

This country runs on Type C or N. Get one with USB-C so you're not fighting over the single outlet.

Daylight runs 13.4 hours and devices drain fast in heat.

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

Overhead bins fit this size on every major airline route.

Urban exploration and parks need a pack that holds day supplies.

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 86°F.

Sweat clings to skin in 80 percent humidity and 30-degree heat.

UV hits 9.6 here. Long sleeves beat reapplying sunscreen every hour.

The coast is steps away and water temps sit at 24 degrees.

Urban terrain and coastal access mean wet feet are frequent.

Direct sun for 13.4 hours daily, with nowhere to hide outdoors.

Heat and humidity drain electrolytes faster than water alone replaces them.

Cold water at 3pm is worth the weight.

Treat the clothes once and it lasts weeks.

Tap water isn't safe and diarrhea dehydrates you in this heat.

Contaminated water causes digestive trouble that ruins travel days.

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.

Tourist areas see pickpocketing; crowded transit makes theft easy.

Luggage moves through busy airports and crowded streets constantly.

Wet clothes and damp gear need separation from clean items.

Rain hits 15 days a month and water is everywhere.

Sweat soaks through clothes daily; washing happens every two days.

Noise fills crowded transit, streets, and shared accommodation spaces.

Heat peaks at 30 degrees Celsius almost every day this month.

Fifteen rain days will soak anything not treated beforehand.

Lips crack and burn at UV 9.6 without constant protection.

Surfaces touch hundreds of hands daily in crowded urban areas.

Sunburn and insect bites both itch and need separate treatments.

One outlet powers multiple devices when you need them charged.

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

Humid air and salt spray degrade paper documents without protection.

International travel requires locks on bags in transit and hostels.

Humidity ruins toiletries stored loose in a hot, damp bag.

Long flights and noise from urban guesthouses disrupt sleep.