Ko Man Islands

Islands

Three small islands off Rayong's Klaeng coast, with clear water, coral and quiet resorts. Ko Man Nai is home to a sea turtle conservation centre where hatchlings are raised for release.

Ko Man Islands Map data © OpenStreetMap contributorsRayongKo Man Islands

Ko Man Islands essentials

Country: Thailand
Driest months: Dec-Feb
Pay in: Baht (฿)
Language: Thai
Emergency: 191

The Ko Man Islands are three small islands off the coast of Klaeng District in Rayong province, east of Ko Samet: Ko Man Nai, Ko Man Klang and Ko Man Nok. They see a fraction of Samet’s visitors, and offer clear water, coral close to shore and small beaches.

  • Ko Man Nai, the largest and the closest to the mainland, is home to a sea turtle conservation centre named after Queen Sirikit. Staff raise hatchlings until they are big enough to release, keep breeding turtles, and run a small exhibition on the turtles of the Gulf of Thailand. There is nowhere to stay, so visits are by day only. Coral grows off the island’s west and south sides.
  • Ko Man Klang lies about 200 metres from Ko Man Nai. At low tide a sandbar joins the two islands, and you can walk between them. It has a few small resorts and good snorkelling.
  • Ko Man Nok, the farthest out, is the quietest of the three, with a sandy beach, forest trails and very little accommodation.

Many visitors come on a day trip that combines the turtle centre with snorkelling stops, while overnight guests usually arrange transfers through their resort.

When to Go

Weather & Climate near Ko Man Islands#

Climate

Tropical climate with consistently warm temperatures year-round. Temperatures range from 22°C to 34°C. Heavy rainfall (2087 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 59 Moderate
Best Time to Visit
DecemberJanuaryFebruary
Temperature & Rainfall
Temperature Range
34°
Warmest Month
17°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Ideal 23° - 31° 27° 28 mm some cloud 75% 2.6 m/s 1.8 very high 11.4h
February Excellent 24° - 32° 31° 41 mm some cloud 76% 3.0 m/s 2.0 very high 11.6h
March Very Good 25° - 33° 34° 69 mm some cloud 78% 2.3 m/s 2.1 extreme 12.0h
April Good 26° - 34° 37° 104 mm partly cloudy 78% 2.3 m/s 2.3 extreme 12.3h
May Acceptable 26° - 33° 38° 252 mm overcast 82% 2.2 m/s 2.1 extreme 12.6h
June Acceptable 26° - 33° 37° 315 mm overcast 84% 2.4 m/s 2.0 extreme 12.7h
July Acceptable 26° - 32° 36° 289 mm overcast 84% 2.4 m/s 2.1 extreme 12.7h
August Acceptable 26° - 32° 36° 297 mm overcast 85% 2.6 m/s 2.1 extreme 12.4h
September Acceptable 25° - 32° 35° 363 mm overcast 86% 1.8 m/s 2.0 extreme 12.1h
October Acceptable 25° - 32° 33° 256 mm overcast 84% 1.8 m/s 1.9 very high 11.7h
November Very Good 24° - 31° 32° 62 mm partly cloudy 81% 2.3 m/s 1.8 very high 11.4h
December Ideal 23° - 31° 27° 11 mm some cloud 77% 2.3 m/s 1.7 very high 11.3h
Getting There & Around

How to Get to Ko Man Islands#

Boats leave from piers on the Klaeng coast around Laem Mae Phim, east of Rayong town, which is reached by road from Rayong or Ban Phe. Day trips and resort transfers are the usual options, and crossings depend on the sea, so they are most reliable in the dry season.