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Koh Mattra

เกาะมาตรา

Chumphon's Beach Island

Beginner Peak Season

A small island near the Chumphon coast with a sandy beach and simple snorkeling.

Depth Range

3–10m

Site Type

snorkeling

Chumphon

Visibility

5–12m

27–30°C

Getting There

30 min boat from Chumphon coast

Near Chumphon coast

Live 7-Day Conditions — Koh Mattra
SST ~30.1°C
Thu
2 Jul
58
marginal
22km/h W
0.4m
Fri
3 Jul
59
marginal
18km/h W
0.3m
Sat
4 Jul
60
good
20km/h W
0.4m
Sun
5 Jul
69
good
15km/h SW
0.3m
Mon
6 Jul
60
good
16km/h SW
0.3m
Tue
7 Jul
59
marginal
18km/h W
0.3m
Wed
8 Jul
59
marginal
22km/h W
0.4m

Marine Life

Reef Fish Starfish Sea Cucumbers

Notable Features

  • Close to mainland
  • Beach picnic spot
  • Casual snorkeling

Best Time to Visit

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak Good Now

About Koh Mattra

Koh Mattra is a small island close to the Chumphon coast, popular with Thai tourists for beach picnics and casual snorkeling. The reef is modest but provides a pleasant half-day trip from the mainland.

Tips

Popular with local Thai tourists on weekends. Go midweek for more peace.

Experience Required

None.

Location

GPS: 10.5000°N, 99.3000°E

Learn to Freedive in the Gulf of Thailand

Sites like Koh Mattra are what the Gulf has to offer. Get certified with us on Koh Samui — train at Sail Rock and Koh Tao in groups of no more than 3, skip the Koh Tao ferry, and dive the best of the region.

New to freediving? Get the free beginner's guide first.

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