Khaoyai in May
May weather, activities, events & insider tips
May Weather in Khaoyai
Is May Right for You?
Advantages
- Peak green season with waterfalls at maximum flow - Haew Narok Falls reaches 150 m (492 ft) cascade volume that's impossible to see in dry months
- Wildlife viewing peaks as animals gather at water sources - 70% higher elephant spotting rates at salt licks between 6-8am
- Shoulder season pricing saves 30-40% on accommodations compared to cool season, with many resorts offering May-specific packages
- Perfect hiking temperatures before 10am and after 4pm - morning mist creates dramatic valley views from Khao Laem peak trail
Considerations
- Afternoon thunderstorms 10 out of 31 days typically last 1-2 hours and can close hiking trails temporarily for safety
- High humidity makes midday outdoor activities uncomfortable - feels like temperatures reach 36°C (97°F) between 11am-3pm
- Some remote hiking trails may have muddy conditions after rain, requiring proper hiking boots instead of sneakers
Best Activities in May
Early Morning Wildlife Safaris
May offers the year's best wildlife viewing as animals congregate around water sources during dry spells between rains. Elephant herds are most active 6-8am when temperatures are cool. The lush vegetation provides perfect camouflage spotting opportunities for hornbills, gibbons, and wild boar. Morning mist adds dramatic photography conditions.
Waterfall Photography Tours
May's increased rainfall creates spectacular waterfall conditions perfect for photography. Haew Suwat and Haew Narok waterfalls reach peak flow, while the cooler temperatures make the 2 km (1.2 mile) hikes comfortable in early morning. The combination of mist and sunlight creates rainbow effects impossible to capture in other months.
Scenic Valley Cycling Routes
May mornings offer perfect cycling conditions with temperatures around 24°C (75°F) and minimal wind. The countryside route through Pak Chong offers 25 km (15.5 miles) of gentle hills through vineyards and flower farms. Afternoon rain provides natural cooling, and the wet season brings out busy green rice paddies.
Cave Temple Exploration
May's heat makes the naturally cool cave temples like Wat Tham Badan perfect retreats. The 200 m (656 ft) cave system stays at 23°C (73°F) year-round. Rain enhances the mystical atmosphere as water drips create natural sounds. Fewer tourists mean peaceful meditation opportunities and better photography without crowds.
Wine Tasting and Vineyard Tours
May marks harvest preparation season at Khao Yai wineries, offering behind-the-scenes access to grape processing. The cooler mornings are perfect for vineyard walks, while afternoon tastings provide air-conditioned comfort during rain. PB Valley and Village Farm offer May-specific harvest tours showcasing Thailand's wine industry.
Night Safari and Stargazing
May evenings offer clear skies between weather systems, perfect for night safaris and astronomy. Nocturnal animals like civets, owls, and flying squirrels are highly active. The reduced light pollution during rainy season creates exceptional stargazing conditions. Cool evening temperatures around 25°C (77°F) make night activities comfortable.
May Events & Festivals
Royal Ploughing Ceremony
Traditional Buddhist ceremony marking the beginning of rice planting season, celebrated in nearby Saraburi province with processions and traditional music. Local farmers participate in blessing rituals for good harvests.