May is a shoulder month as the rainy season begins in many areas-afternoons showers become more common but mornings are often clear. It can be a good time for lower rates and lush landscapes, though Caribbean coasts may see variable weather.
Average daily low and high (°C) and monthly rainfall, from each country's largest city. The badge shows how it feels, allowing for humidity.
Temperature map
-30°-20°-10°0°10°20°30°40°
Average temperature across Central America in May.
Where to Go in Central America in May
Pacific Coast & the Dry Corridor
Guatemala Pacific, El Salvador, Nicaragua Pacific, Costa Rica Pacific-Guanacaste, Nicoya, Manuel Antonio; Panama Pacific beaches like Pedasí & Playa Venao
The first rains typically start to appear in scattered afternoon showers by mid- to late May, transforming roadside dust into green growth; mornings are often still mostly sunny. Surf conditions shift with onshore breezes, and rivers and streams begin to swell; remote beach tracks can become messy, so 4x4 access may be needed in places like northern Guanacaste. Travelers should keep rain gear handy and plan outdoor activities in the mornings when conditions are more reliable.
Caribbean Coast & Bay Islands
Belize coast & Cayes, Honduras Bay Islands Roatán/Utila, Nicaragua Caribbean RAAS, Costa Rica Limon, Panama San Blas & Bocas del Toro
May marks the start of the wetter half of the year for much of the Caribbean coast, with increased humidity and more frequent tropical showers especially in the late afternoon. The San Blas islands and Bocas del Toro begin to see heavier rains that can reduce visibility for diving after big storms. For travelers, prices drop from peak season but prepare for wet weather, limited island transfers and higher mosquito activity.
Highlands & Volcanic Belt
Guatemala Highlands-Antigua, Lake Atitlán, Quetzaltenango; El Salvador & Nicaragua highlands, Costa Rica Central Valley & foothills
Mid-May often marks the onset of mist and more frequent showers in the highlands; foggy, green mornings around Lake Atitlán and the coffee belts give dramatic landscapes but can limit distant views. Trails become damper and volcanic ridgelines slippery; guided treks remain possible but require waterproof shoes and patience for intermittent weather. Prices cool off and low-season benefits appear, especially for lodge stays on coffee fincas.
Cloud Forests & High-Mountain Reserves
Monteverde, Cerro Chirripó, Costa Rica’s central highlands; Panama’s Boquete & Chiriquí
May ushers in the wetter season in earnest; cloud forests become even murkier and trails grow slippery underfoot. Rain tends to fall in heavier bouts, often concentrated in the afternoons, and lower visibility makes distant vistas rare though the forest’s moss and epiphytes are spectacular. For travelers this means quieter lodges and lower rates, but plan for limited panoramic views and bring full waterproofing for multi-day treks.
Belize Mainland & the Barrier Reef
Belize-Ambergris Caye, Caye Caulker, inland cayes and mainland
May triggers warmer and more humid conditions and the start of occasional tropical showers; late-month storms are possible although hurricane formation is still relatively rare. For divers, particulate matter can slightly lower clarity after heavy rains, particularly near river mouths on the mainland. Travelers will find fewer crowds and more flexible pricing, but should be ready for sudden downpours on island excursions.
Events & Festivals in May
Labor Day / local festivals
Regional public holidays and local cultural events.
Planning a trip to Central America?
See how May compares with the rest of the year, then read the full guide.
