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Kaeng Krachan National Park

Park

Thailand's largest national park, Kaeng Krachan spans rainforest, misty hills and reservoir shores; visitors come for overnight wildlife spotting, birdwatching, waterfalls and eco-lodges along dirt forest roads.

Kaeng Krachan National Park BangkokChiang MaiPhuketKrabiKo SamuiKo Phi PhiAyutthayaChiang RaiKo TaoPaiSukhothaiKanchanaburiHua HinPattayaKaeng Krachan National Park
In this guide

Kaeng Krachan National Park essentials

Address: Kaeng Krachan National Park, Phetchaburi & Prachuap Khiri Khan provinces, Thailand
Website: dnp.go.th
Hours: Park offices open daily; access times vary by trail and guided activities.
Admission: Entrance fees vary by activity and area (day-trip permits, park vehicle fees and camping permits apply); foreign rates typically higher. Contact park office for current prices.
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About Kaeng Krachan National Park

Kaeng Krachan National Park is Thailands largest protected area, covering extensive lowland and montane rainforest along the Myanmar border. The park protects large continuous forest tracts, watershed areas and a reservoir that supports diverse wildlife and birdlife.

Visitors go for rainforest hikes, birdwatching, reservoir views, and to see waterfalls and remote forest camps; wildlife recorded in the park includes large mammals and a rich assemblage of forest birds. Facilities are focused on a few ranger stations, campsites and designated viewpoints rather than extensive tourist infrastructure.

The park was designated to protect the watershed and remaining lowland forest and to provide contiguous habitat across provincial boundaries. It remains an important conservation area with restricted and managed access in interior zones.

Kaeng Krachan lies in western Thailand, straddling Phetchaburi and Prachuap Khiri Khan provinces along the border with Myanmar, southwest of Bangkok.

  • Access note: Access is mainly by road from Phetchaburi or Prachuap Khiri Khan; sections of the park become difficult in heavy rain and some interior roads are unsealed.

What to See#

  • Kaeng Krachan Reservoir: Kaeng Krachan Reservoir formed by a dam is a central water feature inside the park and a focus for wildlife and bird activity.
When to Go

Best Time to Visit Kaeng Krachan National Park

November-April is best for accessibility and wildlife viewing; dawn safaris provide the most action.

Dry season (November-April)
Nov-Apr · 20-32°C
Easier trekking and more reliable access to remote ranger stations and viewpoints.
Wet season (May-October)
May-Oct · 22-30°C
Lush forest and waterfalls but heavy rains make trails slippery and some roads impassable.

Weather & Climate near Kaeng Krachan National Park

Climate

Kaeng Krachan National Park's climate is classified as Tropical Savanna - Tropical Savanna climate with consistently warm temperatures year-round. Temperatures range from 19°C to 32°C. Moderate rainfall (922 mm/year) with a pronounced dry season.

Air Quality: AQI 65 Moderate
Best Time to Visit
FebruaryJanuaryDecember
Temperature & Rainfall
Temperature Range
40°
Warmest Month
9°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Ideal 19° - 29° 24° 5 mm partly cloudy 74% 1.2 m/s 1.7 very high 11.4h
February Ideal 20° - 30° 25° 8 mm some cloud 71% 0.9 m/s 1.9 very high 11.6h
March Excellent 22° - 31° 26° 37 mm partly cloudy 70% 1.5 m/s 2.2 extreme 12.0h
April Very Good 23° - 32° 30° 64 mm partly cloudy 70% 1.4 m/s 2.3 extreme 12.3h
May Very Good 23° - 31° 27° 89 mm overcast 81% 1.2 m/s 2.0 extreme 12.6h
June Very Good 23° - 30° 26° 76 mm overcast 84% 1.3 m/s 1.9 very high 12.7h
July Very Good 22° - 29° 26° 88 mm overcast 84% 1.1 m/s 1.8 very high 12.7h
August Good 22° - 29° 26° 115 mm overcast 84% 1.1 m/s 1.8 very high 12.4h
September Good 22° - 29° 25° 170 mm overcast 87% 0.9 m/s 1.9 very high 12.1h
October Good 22° - 29° 25° 193 mm overcast 89% 1.0 m/s 1.7 very high 11.7h
November Very Good 21° - 28° 25° 71 mm overcast 85% 1.3 m/s 1.7 very high 11.4h
December Ideal 19° - 28° 24° 6 mm partly cloudy 79% 1.5 m/s 1.6 very high 11.3h
Getting There & Around

How to Get to Kaeng Krachan National Park

From Phetchaburi or Hua Hin, drive to park entrance gates (Kaeng Krachan has multiple access points; Phetchaburi side is often used). The park is roughly 3-4 hours’ drive from Bangkok depending on traffic. Many visitors arrange transport and guides from nearby towns such as Phetchaburi or Hua Hin.

Tips for Visiting Kaeng Krachan National Park

  • Book accommodation and permits in advance during high season-some areas limit visitors and require authorized guides.
  • Early mornings are best for mammal and bird sightings; night drives (with licensed guides) can reveal nocturnal species.
  • Roads into interior areas are rough; a 4x4 or arranging transport through local operators is recommended.