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# Is Pattaya Water Safe to Swim In? Beach & Island Guide
- URL: https://www.thailandtripos.com/is-pattaya-water-safe-to-swim-in-beach-island-guide/
- Published: 2026-09-16T09:25:15.000Z
- Updated: 2026-09-16T15:17:56.000Z
- Description: Can you swim in Pattaya? Compare water quality across Pattaya Bay, Jomtien, and find out why the ferry to Koh Larn is your best bet for clean seas.
- Author: Tim Thorer
- Tags: Destinations & Hotels, Health & Safety

Can you swim in Pattaya? Compare water quality across Pattaya Bay, Jomtien, and find out why the ferry to Koh Larn is your best bet for clean seas.

#### Pattaya Bay

Murky most of the time. The bay is shaped like a closed pocket, the currents barely move, and the city pumps a serious volume of treated wastewater through outflows along Beach Road. Pattaya City has spent billions of baht on a wastewater treatment system since 2020, and water quality has measurably improved, but "improved" doesn't mean "clear." On a calm day after rain, you can see plastic and oil sheen along the shoreline at Beach Road.

Worth mentioning: There’s a new Floating Beach Club in the bay. And some restaurant boats, two were you can try to catch squids. But remember in what kind of water you’re fishing…

#### Jomtien Gulf

Better. Jomtien Beach faces open water, the currents flush, and the sand actually grades into the sea instead of sitting in a stagnant pocket. The southern end of Jomtien — past Dongtan Beach and toward Na Jomtien — cleanest stretch on the mainland after Wong Amat.

#### ****Where It's Better**

If you want clear water, you go to Koh Larn. The 30-baht ferry from Bali Hai Pier takes 45 minutes. Tawaen, Samae, Tien beaches — all dramatically clearer.

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