Khun Si Waterfall
Koh Samui, Thailand • 
Underrated
Underrated
Best months to visit
Jan, Feb, Mar
23°C – 29°C, january is part of koh samui's dry season, with pleasant temperatures and low rainfall, low crowds, peak season
23°C – 29°C, january is part of koh samui's dry season, with pleasant temperatures and low rainfall, low crowds, peak season
Walking required
Yes
Uneven, steep path; requires moderate hike and sturdy shoes.
Uneven, steep path; requires moderate hike and sturdy shoes.
Value for money
High
Free entry and a unique, secluded experience.
Free entry and a unique, secluded experience.
Highlights we curated for you
See what similar travellers think of this activity
C
Reviews from other travelers
Summarised by AI
Hidden Paradise
Couples loved the secluded, romantic setting. Perfect for a day of adventure and peace.
Scenic Trek
Visitors felt the trek was rewarding. The views and waterfalls were worth the effort.
Romantic Escape
Couples found the waterfall a perfect escape. The quiet and beauty were very appealing.
Difficult Access
Travelers warned of the rough road and challenging hike. Not ideal for everyone.
Slippery Trails
Visitors noted the trails could be slippery, especially after rain. Sturdy shoes needed.
Limited Amenities
Couples noted the lack of facilities. Bring water and snacks for a longer visit.
How to book
ViatorRECOMMENDED
Guided Tour with Skip-the-Line Access
Free cancellation up to 24 hours before
2h - 3h
4.8
from
USD 45
per_person
BOOK
GetyourguidePremium Experience with Hotel Pickup
Free cancellation up to 48 hours before
4h - 5h
4.9
from
USD 70
per_person
BOOK
KlookPrivate Full-Day Tour
Non-refundable
8h - 10h
5.0
from
USD 120
per_person
BOOK
Hours of operation
Monday
07:00 AM - 05:00 PM
Tuesday
07:00 AM - 05:00 PM
Wednesday
07:00 AM - 05:00 PM
Thursday
07:00 AM - 05:00 PM
Friday
07:00 AM - 05:00 PM
Saturday
07:00 AM - 05:00 PM
Sunday
07:00 AM - 05:00 PM
When to visit
We've analysed user reviews and geographical data, and identified the best and worst months to visit.
Month
Crowd Level
Weather
Availability
Our recommendation
December
MEDIUM
23-30°C
December signals the end of the rainy season. Rainfall decreases, humidity drops, and the weather becomes more pleasant for outdoor activities.
December signals the end of the rainy season. Rainfall decreases, humidity drops, and the weather becomes more pleasant for outdoor activities.
Open
No major restrictions, but early December may still see wet trails. Standard caution is advised.
No major restrictions, but early December may still see wet trails. Standard caution is advised.
Recommended
December is a good time to visit Khun Si Waterfall, especially later in the month. The scenery is lush from the recent rains, and the trails become more accessible.
December is a good time to visit Khun Si Waterfall, especially later in the month. The scenery is lush from the recent rains, and the trails become more accessible.
January
LOW
23-29°C
January is part of Koh Samui's dry season, with pleasant temperatures and low rainfall. The trails are generally accessible and the waterfall has steady flow.
January is part of Koh Samui's dry season, with pleasant temperatures and low rainfall. The trails are generally accessible and the waterfall has steady flow.
Open
Access requires a trek through uneven, sometimes steep terrain. The road is rough and best accessed via 4x4 or scooter. No public transport directly to the site.
Access requires a trek through uneven, sometimes steep terrain. The road is rough and best accessed via 4x4 or scooter. No public transport directly to the site.
Recommended
Khun Si Waterfall is open daily from 6 AM to 6 PM. January offers ideal conditions for hiking and swimming in the natural pools, though access can be challenging due to rough roads and forest paths.
Khun Si Waterfall is open daily from 6 AM to 6 PM. January offers ideal conditions for hiking and swimming in the natural pools, though access can be challenging due to rough roads and forest paths.
February
LOW
24-30°C
February continues the dry season with warm, stable weather and very little rainfall. Trail conditions are excellent.
February continues the dry season with warm, stable weather and very little rainfall. Trail conditions are excellent.
Open
The pathway can be steep and slippery. 4x4 or scooter recommended for access; no public transport available.
The pathway can be steep and slippery. 4x4 or scooter recommended for access; no public transport available.
Recommended
Excellent month for visiting: the waterfall has a steady flow, and the area is tranquil. Local vendors may be present at the viewpoint.
Excellent month for visiting: the waterfall has a steady flow, and the area is tranquil. Local vendors may be present at the viewpoint.
March
LOW
25-31°C
March stays warm and mostly dry with only occasional, brief showers. Water flow at the waterfall remains good.
March stays warm and mostly dry with only occasional, brief showers. Water flow at the waterfall remains good.
Open
Challenging terrain makes access difficult for those with limited mobility. Private car or scooter required.
Challenging terrain makes access difficult for those with limited mobility. Private car or scooter required.
Recommended
March is a suitable time for hiking and swimming. The waterfall is accessible, and the weather is hot but not oppressive.
March is a suitable time for hiking and swimming. The waterfall is accessible, and the weather is hot but not oppressive.
How to get there
Taxi
Recommended
Walking
Recommended
Bike
Car
Additional info
Here's what you need to know about this experience
Mobility
Wheelchair Accessible
Walking Required
Stairs Present
Seating Available
Flat Terrain
Hiking Required
Elevator Available
Mobility Scooter Friendly
Ramps Available
Pregnancy
Not suitable for pregnancy
Allowed during pregnancy
Pets
Pets allowed
Driving
Driving License Required
Idp Required
Age
Ages 5-70