What should I pack for Puerto Vallarta?

The cobblestones in Zona Romántica will roll your ankle if you show up in flip-flops. Streets between the Cathedral of Our Lady of Guadalupe and the Malecón are uneven volcanic stone, slick after the afternoon rain that falls almost daily from June through October. Pack closed-toe shoes with rubber soles that grip wet rock. Those same shoes handle the jungle trails at Vallarta Botanical Gardens (open since 2004, about 30 km south), where dirt paths turn to mud after a downpour. Flat sandals work at Los Muertos Beach but are terrible for the 15-minute uphill walk back to most hotels south of the Río Cuale. Sport sandals with heel straps cover both sand and sidewalk. Leave the white sneakers at home. They'll be brown by day two.

The city sits at roughly 82% humidity year-round, and early September temperatures hover near 26°C but feel closer to 30°C once the moisture sticks to your skin. Cotton is a mistake here. Three or four quick-dry shirts, two pairs of lightweight shorts, and one long-sleeve layer for the over-air-conditioned restaurants along the Malecón strip will cover a full week. Swimwear goes under everything if you're spending afternoons at the beach, where the water holds near 28°C through the wet season. Pack a rain shell, not an umbrella. The wind off Banderas Bay turns umbrellas inside out in about 30 seconds during a squall. A packable jacket that stuffs into its own pocket weighs around 200 grams and saves you from the 4 PM downpours that arrive like clockwork from June through October.

Reef-safe sunscreen is the one thing worth hauling from home. Banderas Bay connects to a marine ecosystem where chemical-filter products do measurable damage, and the bottles sold by beach vendors run about 3x the pharmacy price. SPF 50+ mineral formula, applied before you leave the hotel, reapplied every 90 minutes in direct tropical sun. A wide-brim hat needs a chin cord because the sea breeze pulls hats off tourist heads all afternoon along the boardwalk. Worth noting, polarized sunglasses cut the Pacific glare enough that you can spot the rocky bottom at Playa Conchas Chinas, about 2 km south of the main beach.

Mexico runs on 127V/60Hz with Type A and B outlets, identical to the US and Canada. If you're arriving from North America, leave the plug adapter at home. European and UK visitors need a converter but not a voltage transformer, since most phone and laptop chargers accept 100-240V (check the small print on the power brick). Bring a portable charger for full days out. Google Maps navigation through the hillside colonias above the Malecón, plus translation apps at the taquerías in Pitillal where menus tend to be Spanish-only, will drain a phone by 2 PM. Mind you, an eSIM activated before landing at Gustavo Díaz Ordaz International Airport saves the scramble for local SIM cards in the arrivals hall.

Skip packing mosquito repellent, aloe vera, and basic toiletries. Farmacia Guadalajara on Avenida Francisco Medina Ascencio sells Off! repellent for about 65 MXN, under 4 USD at the current 16.9 rate. Aloe gel runs 40-50 MXN at the same chain. OXXO convenience stores appear on nearly every block in the hotel zone and stock phone cables, ibuprofen, and snacks. Beach towels cost 80-120 MXN from vendors near the pier at Los Muertos. The exception is anything reef-safe for sun protection, since local pharmacy shelves lean toward chemical-filter products.