Sai Thong Beach
Sai Thong Beach is a natural riverside attraction situated along the Mekong River in the Sri Chiang Mai district of Nong Khai province, not far from Udon Thani. The beach draws visitors looking for a relaxed, unhurried experience away from the busier tourist circuits of northeastern Thailand, offering sandy stretches alongside the river with open views across to Laos on the opposite bank. The atmosphere here is calm and informal, making it well suited to families, day-trippers, and travellers seeking a quieter connection with the Mekong landscape. The setting is largely natural, and the appeal lies in the scenery and the slow pace rather than organised facilities or commercial attractions. It functions as both a leisure spot and a local gathering place, reflecting the laid-back character of riverside life in this part of Isan. Practically speaking, Sai Thong Beach is best visited during the cool season between November and February, when temperatures are more comfortable and the river levels are lower, revealing broader sandy areas along the bank. As no website or confirmed opening hours are available, visitors planning a trip are advised to check locally before travelling. The beach is best reached by private vehicle or motorbike, as public transport options in the area are limited. Light, breathable clothing is recommended year-round given the region's warm climate.
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Experience hints
Pair your visit. After Sai Thong Beach, round out your day in Udon Thani with contrasting stops nearby.
Also Popular in Udon Thani

Central Udon
A modern shopping mall in central Udon Thani offering retail, dining, and entertainment under one roof.

Wat Pho Chai Phra Aram Luang
A revered Buddhist temple in Nong Khai housing an ornate gold sitting Buddha and intricate wall art.

Tha Sadet Market
Riverside covered market in Nong Khai offering street food, clothing, and local handicrafts daily.

Daeng Namnuang Nong Khai
A well-known Vietnamese-Thai restaurant on the Mekong riverside in Nong Khai, open daily for lunch and dinner.
Sai Thong Beach: Frequently Asked Questions
Is Sai Thong Beach worth visiting?
Sai Thong Beach holds a 4.4★ rating from 64 Google reviews — a strong rating for activities & tours in Udon Thani.
When is the best time to visit Sai Thong Beach?
The best months to visit Udon Thani are December – February (Red Lotus Sea blooms Dec–Feb), with the most reliable weather. Crowds peak in December – January (lotus season weekends) — going early in the day usually means fewer people. Months to think twice about: March – May (peak heat).
Where is Sai Thong Beach located?
Sai Thong Beach is at WJJ6+WFQ บ้าน หาดทราย อำเภอ ศรีเชียงใหม่ หนองคาย 43130, Thailand, in Udon Thani. Getting around Udon Thani: Songthaews on numbered city routes (฿10–15); Grab and metered taxis in the city.
Visitor Information
Best time to visit
December – February (Red Lotus Sea blooms Dec–Feb)
Avoid: March – May (peak heat)
Rainy season
May – October
Avg. temperature
19°C – 35°C(66°F – 95°F)
Crowds
Peak: December – January (lotus season weekends)
Getting there
Udon Thani Airport (UTH) has frequent Bangkok flights (~65 min). The overnight sleeper train from Bangkok to Nong Khai stops here (~9 hrs); buses from Mo Chit take 7–8 hours. Vientiane (Laos) is 80 km via the Friendship Bridge.
Getting around
- •Songthaews on numbered city routes (฿10–15)
- •Grab and metered taxis in the city
- •Minivans and trains to Nong Khai (55 km, ~1 hr)
- •Rental car for the Red Lotus Sea and Ban Chiang (both ~50 km out)
Where to stay near Sai Thong Beach
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Tips for Visiting Activities & Tours
Vet Elephant Sanctuaries
Only visit sanctuaries that prohibit riding, use no chains or bullhooks, and let elephants roam freely. Elephant Nature Park in Chiang Mai set the standard. If a place offers painting shows or circus tricks, walk away.
Book Popular Activities Online
Booking platforms like GetYourGuide give you instant confirmation and, on many activities, free cancellation — and you can read recent reviews before committing. Compare with local agencies for multi-day trips where negotiation might save more.
Do Outdoor Activities in the Morning
Heat and humidity peak from noon to 3 PM. Schedule jungle treks, cycling tours, and outdoor cooking classes for early morning. Water activities are more flexible since you're in and out of the sea.
Similar Activities & Tours Across Thailand

Elephant Jungle Sanctuary Phuket
An ethical elephant sanctuary in Kathu where rescued elephants roam freely and visitors connect with them through feeding and bathing.

Elephant Jungle Sanctuary Chiang Mai
Elephant Jungle Sanctuary is Chiang Mai's best-known ethical elephant operation — a network of small camps in the Karen hill country of Mae Wang, about 60 kilometres southwest of the city, where rescued elephants live in semi-wild family groups.

Elephant Jungle Sanctuary Pattaya Camp 1
An ethical elephant sanctuary in Pattaya's jungle offering hands-on feeding, mud baths, and close wildlife encounters.

Elephant Jungle Sanctuary Samui (Soi 1 Branch)
Ethical elephant sanctuary in Maenam offering daily hands-on encounters with rescued elephants in a jungle setting.
Where to stay near Sai Thong Beach
Find hotels in Udon Thani on the booking sites travellers trust most.
- Compare prices across sites
- Filter for free cancellation
- Secure checkout on the partner site
Compare rates on Booking.com
Largest selection
Compare rates on Agoda
Asia-focused selection
Compare rates on Hotels.com
Member prices
We may earn a commission from bookings made through these links — at no extra cost to you. Learn more.
Visitor Information
Best time to visit
December – February (Red Lotus Sea blooms Dec–Feb)
Avoid: March – May (peak heat)
Rainy season
May – October
Avg. temperature
19°C – 35°C(66°F – 95°F)
Crowds
Peak: December – January (lotus season weekends)
Getting there
Udon Thani Airport (UTH) has frequent Bangkok flights (~65 min). The overnight sleeper train from Bangkok to Nong Khai stops here (~9 hrs); buses from Mo Chit take 7–8 hours. Vientiane (Laos) is 80 km via the Friendship Bridge.
Getting around
- •Songthaews on numbered city routes (฿10–15)
- •Grab and metered taxis in the city
- •Minivans and trains to Nong Khai (55 km, ~1 hr)
- •Rental car for the Red Lotus Sea and Ban Chiang (both ~50 km out)