May delivers Puerto Vallarta at its most balanced: warm enough for full days on the water without excessive heat, and dry enough to explore without rain concerns. Banderas Bay remains calm for optimal sailing conditions, and the ocean reaches ideal swimming temperatures.
This practical guide breaks down exactly what May's weather means for packing decisions, which items earn their space based on specific conditions, and how to prepare for everything from snorkeling tours to upscale evening venues without overthinking it.
What to Expect from May's Weather in Vallarta
Understanding May's specific weather patterns tells us exactly what belongs in the bag.
Average temperatures: Daytime highs reach mid-80s while nights cool to the upper 60s, creating a comfortable 17-degree swing that keeps evenings pleasant without requiring heavy layers.
Rainfall: May brings minimal precipitation, just 2 rainy days, translating to a 3% chance of rain on any given day. When rain does appear, it arrives as brief showers rather than extended storms.
Humidity: Expect consistent 77% humidity throughout the month. This level means swimsuits and clothes take 12-24 hours to dry completely, which directly impacts how many we recommend packing. The humidity also makes temperature feel warmer than the thermometer suggests, particularly during midday hours.
Sea temperature: The ocean warms to comfortable levels, ideal for swimming, snorkeling, and extended water activities without wetsuit requirements. These temperatures feel refreshing during the day while remaining comfortable for sunset sailing.
Daylight hours: May offers 13-hour days. This extended evening light enhances sunset tours and evening activities.
Essential Packing List for Vallarta in May
Certain items belong in every Vallarta suitcase regardless of when visitors arrive, but May's combination of heat, humidity, and predominantly dry conditions create specific packing priorities.
Travel Documents & Money
- Valid U.S. passport
- Tourist card (FMM)
- Proof of return travel
- Mexican pesos
- Credit cards
- Travel insurance documents
Electronics & Power
May's full-day tours and extended daylight hours mean devices work harder than typical vacations.
- Phone charger and car charger
- Portable power bank (high capacity for full-day tours)
- Waterproof phone case for beach and water activities
- Camera with extra memory cards
- Headphones or earbuds
- U.S. plugs work in Mexican outlets (no adapter needed)
Health & Safety
Tropical humidity and strong UV exposure at both sea level and mountain elevations require specific health preparation.
- Prescription medications (bring extra supply)
- Basic first aid kit
- DEET-based insect repellent (medical professionals' recommendation for humid tropical conditions)
- Hand sanitizer
- After-sun lotion or aloe vera gel
- UV-blocking swim shirts for extended water activities
- Wide-brimmed sun hat with chin strap
- UV-protective buff or bandana (protects lips, neck, and face from sun exposure)
- Electrolyte replacement tablets (Pedialyte or similar, for heat recovery)
Practical Items
- Multiple swimsuits (3-4 minimum)
- Waterproof day bag
- Quick-dry towel or lightweight beach towel
- Reusable water bottle
- Closed-toe supportive walking shoes
Clothing and Accessories
- Multiple swimsuits (3-4 recommended for week-long trips)
- Lightweight, breathable cotton or linen t-shirts/tank tops
- Shorts and swim shorts
- Underwear (quick-dry recommended)
- Sleepwear/pajamas
- Beach cover-ups or sarongs
- Light cardigan for air-conditioned spaces
- Dressy casual outfits for upscale restaurants/nightlife
- Comfortable long pants for mountain excursions
- Sunglasses with UV protection and retention strap
Footwear
- Flip-flops for pool and resort areas only
- Supportive walking shoes with good grip and ankle support for Old Town's cobblestone streets and marina boardwalks
- Sturdy, closed-toe shoes for San Sebastian del Oeste mountain tours and higher-elevation terrain
- Water shoes for rocky coastal areas and boat activities like snorkeling
- Closed-toe loafers or dressy sandals for upscale evening venues (hats, shorts, and casual sandals prohibited at these locations)
Top Clothing and Footwear Suggestions for May
May's warm, humid conditions reward natural fabrics in the high humidity, making fabric choice more important than layers.
Comfort in Heat: Lightweight cotton t-shirts, breathable linen pants, rayon sundresses, loose-fitting shorts that don't trap moisture, quick-dry fabrics that recover overnight
Ocean Ready: Multiple swimsuits (3-4 minimum, rotating while others dry in the humid conditions), UV-protective rash guards for extended snorkeling, beach cover-ups for restaurant transitions, waterproof sandals or water shoes
Evening Comfort: Light cardigan for air-conditioned restaurants and boats, casual dress or collared shirt for upscale venues, breathable long pants, closed-toe loafers for upscale venues (sandals prohibited) or flip-flops for casual beach bars, small crossbody bag for walking between venues
Vallarta Nightlife Considerations for May
Vallarta's evening scene spans beachfront bars where flip-flops work fine to venues with dress code requirements. We recommend packing one outfit with closed-toe shoes, a collared shirt or nice blouse, and long pants or a dress for rooftop lounges and waterfront restaurants. A light sweater or cardigan helps with air-conditioned venues.
May brings the Fiestas de Mayo, filling evenings with live music, traditional food vendors, and carnival atmosphere in the downtown area. The May 31 fireworks draw crowds to the Malecón for the waterfront show. These events create busier-than-usual evening scenes without the peak winter crowds, offering that middle ground where travelers find energy without overwhelming tourist volume.
Top May Experiences & What We Recommend Bringing
May's calm seas, warm water temperatures, and comfortable mountain climate create ideal conditions for experiences that span from Banderas Bay to the Sierra Madre foothills. The month's minimal rainfall of only 2 rainy days and 13-hour days mean full-day adventures can be planned without weather backup plans.
Luxury Sailing
Hidden coves and dramatic mountain ridges reveal themselves differently from the water; no land-based viewpoint compares. This six-hour sailing experience on Banderas Bay shows why the bay earned its reputation, with stops at secluded locations where visibility extends far enough to spot tropical fish before swimmers are directly overhead.
May's calm seas and comfortable water create perfect snorkeling conditions. The gourmet lunch and premium open bar let guests settle into the rhythm of sailing rather than watching the clock, while bilingual crew members share details about the geography sliding past.
What we recommend for this tour: Swimsuit, UV-protective long-sleeve swim shirt, light cover-up, waterproof camera case, water shoes, small amount of cash for port fees
Luxury Sunset Sailing
Watching the sun drop into the Pacific from the water removes every land-based distraction: no buildings blocking the horizon line, no traffic noise cutting through the moment, just the sound of water against the hull as the sky shifts through its golden-hour palette. Three hours on the water captures the best light as Sierra Madre mountains turn purple-blue against the orange sky.
May's consistent 8:15-8:30 PM sunsets and calm evening conditions create reliable conditions for this experience, while the tapas and premium bar service keep the focus on the view rather than logistics. The intimate 30-guest maximum means guests find space at the rail when the color show starts.
What we recommend for this tour: Light sweater or jacket (essential as temperature drops after sunset), camera for sunset photography, comfortable casual attire, and sunglasses for afternoon sun protection
San Sebastian del Oeste
Stepping into a centuries-old silver mining town preserved in the Sierra Madre mountains feels like traveling through time. The journey to reach San Sebastian del Oeste climbs through shifting ecosystems, tropical vegetation giving way to pine forests, before arriving at the colonial town nestled in the peaks.
This officially designated Pueblo Mágico preserved its silver mining heritage through architecture that dates to 1605, creating an authentic cultural experience that feels worlds away from the beach.
May's mountain temperatures sit comfortably in the 70s-80s while the coast reaches the high 80s to low 90s, making this the ideal month for exploring cobblestone streets and visiting artisan workshops where silversmiths still practice traditional techniques. The organic coffee farm tasting and traditional lunch in a historic patio house connect visitors to the region's agricultural heritage beyond tourism.
What we recommend for this tour: Closed-toe shoes with good grip (essential for mountainous terrain and cobblestone streets), comfortable long pants (preferred for extended walking and cooler mountain temperatures), light jacket or sweater (mountains are 15-20°F cooler than the coast), sun hat, camera for colonial architecture and mountain vistas, small daypack (for carrying items during walking portions), and cash for personal purchases from local artisans
Pre-Departure Preparation Timeline
2-3 Weeks Before Departure
Digital Preparation
- Download offline maps and save reservation confirmations
- Download Spanish translation apps
- Book remaining tours and restaurant reservations
Cultural & Culinary Research
- Note Fiestas de Mayo (May 16, June 1) and Puerto Vallarta Anniversary Day (May 31) with fireworks over Banderas Bay
- Research basic Spanish phrases and seasonal dishes to try
Documentation & Backup
- Verify passport expiration date extends six months beyond travel dates
- Scan and save copies of passport, driver's license, and travel insurance documents
- Confirm travel insurance coverage details and emergency contact numbers
- For U.S. citizens: Obtain tourist card (FMM) distributed on flight or at immigration
- Verify current entry requirements before departure
24 Hours Before Departure
- Review final weather forecast for packing adjustments
- Confirm offline maps downloaded and accessible
- Charge all electronics fully and pack chargers in accessible locations
- Assemble carry-on essentials in accessible locations
Airport/Travel Day
- Wear comfortable clothes with light layers for variable airplane temperature
- Pack entertainment options for the flight in easily accessible location
- Bring empty reusable water bottle to fill after security
- Keep travel snacks in carry-on
- Store passport, boarding pass, and critical documents in dedicated section of personal item
We've Covered Everything Needed for Vallarta in May
Planning ahead shifts mental energy from worrying about forgotten items to anticipating what's coming: that first view of Banderas Bay, the cool mountain air at San Sebastian del Oeste, sunset touching the Pacific horizon. May's combination of warm water, dry weather with only 2 rainy days expected, and comfortable mountain temperatures creates conditions where the destination does the heavy lifting. Pack according to the conditions covered here, and the rest takes care of itself.
Popular May tours fill quickly during this period between winter crowds and summer rainy season. With daytime temperatures in the mid-80s°F, calm seas ideal for snorkeling, and only 2 expected rainy days, the weather genuinely cooperates in May. Securing spots for sailing and mountain excursions now gets travelers ready for a version of Vallarta where the weather delivers exactly what they came for.
