Scuba Diving at South Point - Koh Larn

Diving atSouth Point - Koh Larn (Thailand)

A descent at South Point - Koh Larn envelops divers in warm, clear tropical currents, revealing a vibrant reef structure. The site offers a palpable sense of exploration, whether drifting along its contours or observing the intricate macro life. It's a place where the underwater environment feels both dynamic and welcoming, inviting a calm approach to its diverse ecosystem.

As evening covers South Point - Koh Larn, the local air temperature is measured at 30.5°C. The current wave height at the surface is recorded at 0.3 m. These late-day readings characterize the surface conditions for the night.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Max Depth--
Entry Type--
Water Typesalt
Dive Types
DriftReef

Dive Site Overview

Koh Larn offers a diverse array of dive sites, establishing itself as a key area for underwater exploration just off Pattaya. South Point represents a cornerstone of this offering, distinguished by its intricate reef structures and the frequent occurrence of gentle drift conditions.

This flexibility makes it a compelling choice for various certification levels. Many routes here are perfectly suited for Open Water divers, generally staying in the shallower reef zones, often around 5 to 18 meters. Those holding an Advanced Open Water certification can explore more extensive profiles, accessing deeper sections at adjacent sites like Laem Tong or Shark Point, where descents can reach 25 to 30 meters, inviting encounters with a broader range of marine life including occasional pelagics.

The island's sheltered bays ensure consistent dive opportunities throughout the year, making it a reliable destination for both foundational dive training and recreational excursions. Divers often appreciate the relaxed boat rides and comfortable surface conditions, which contribute to a generally pleasant overall experience before even entering the water.

This combination of accessible reefs and opportunities for deeper, more current-driven dives provides a well-rounded underwater adventure.

South Point - Koh Larn

Conditions are Good

7/10
Confidence: 8/10
Indicates meteorological model agreement and data availability.

Best Dive Window

Optimal conditions expected

06:12
18:45
H: 10:45
L: 16:20
Air / Sea Temp
31° / 31°
Wave Height
0.5 m
Wind Speed
27 km/h SW
Rain Chance
100%

Current conditions near South Point - Koh Larn show 31° air, 31° sea temperature, 0.5 m waves, and 27 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 14, 2026, 10:40 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Planning your dive for optimal conditions at South Point often aligns with the dry season, specifically from September through April. During these months, visibility tends to be at its clearest, frequently exceeding 15 meters / 50 feet on exceptional days. Air temperatures during this period are pleasantly warm, ranging from 26.5°C / 80°F in January to 29.5°C / 85°F in April. Rainfall is notably lower from January to March, making for a comfortable surface interval and boat ride. While Koh Larn is diveable throughout the year, with dive scores rated 'Excellent' for much of the dry season, the monsoon season, particularly June, sees higher wave heights and wind speeds, which can affect surface conditions and overall dive scores.

PEAK SEASON SCORE

89/100
Very Good

Scores combine air & water temps, waves, wind & rainfall for overall conditions.


BEST MONTHS TO DIVE

JAN
FEB
OCT
DIVE SCORE
(0–100)
91
JAN
89
FEB
86
MAR
85
APR
84
MAY
75
JUN
74
JUL
81
AUG
77
SEP
89
OCT
87
NOV
88
DEC
AIR TEMP (°C)
27
28
29
30
30
29
29
29
29
28
28
27
WAVES (M)
0.3
0.4
0.5
0.5
0.4
0.7
0.7
0.6
0.6
0.2
0.4
0.4
WIND (KM/H)
24
24
26
26
25
30
30
28
26
21
25
25
RAIN (MM)
0.4
1.1
1.1
1.5
5.5
5.1
6.9
3.8
8.7
5.6
2.1
0.6
DIVE SCORE GUIDE (0–100)
Excellent (90–100)
Very Good (80–89)
Good (70–79)
Moderate (50–69)
Poor (30–49)
Not Recommended (0–29)

Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.

Dive Experience & Conditions

Entering the water at South Point, divers immediately notice the inviting warmth, consistently hovering around 27-29°C / 81-84°F, which allows for comfortable extended bottom times. The underwater landscape presents a compelling mix of reef structures and the subtle flow of currents, often creating a gentle drift dive experience. Visibility, while variable, generally ranges between 6–12 meters / 20–40 feet, tending to be clearer during the dry season, making observation of the intricate reef life more rewarding. Navigating the site involves drifting along coral gardens, observing the interplay between the reef and its inhabitants. The site frequently rewards patient divers with views of schooling fish moving in sync with the current, or solitary creatures meticulously camouflaged within the coral. It's an environment that shifts from expansive vistas to detailed macro opportunities, making each dive feel unique and engaging.

Dive Difficulty & Safety Guidelines

Approaching South Point requires an understanding of its unique characteristics, particularly its potential for drift conditions. While general Koh Larn sites are ideal for Open Water divers, deeper sections or those with stronger currents may necessitate an Advanced Open Water certification. Always dive within your training limits. Booking in advance is recommended, especially during peak season (November to February), to ensure availability with local dive operators. Adhering to responsible diving practices, such as maintaining proper buoyancy and respecting marine life, contributes to the preservation of the reef and ensures a safe experience.

Recommended Equipment

Current and surface separation risk. Local briefing strongly recommended.

  • Dive Computer
  • DSMB
  • Reel / Spool

This gear list is based on verified equipment signals for South Point - Koh Larn, Thailand. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

For divers planning standard recreational dives, dive skin or rash guard is usually a suitable option. Divers vary widely in how quickly they feel cold underwater.

The waters surrounding South Point - Koh Larn are currently maintaining temperatures close to 31°C (87°F). Surface air temperatures are resting at 31°C (87°F).

The forecast outlook suggests that temperatures will stay close to current levels.

South Point - Koh Larn conditions last reviewed: 10:40 local time (UTC+7), Jun 14, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to South point - Koh Larn.

Hyperbaric Chamber

Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.

Before diving, it's recommended to:

  • confirm nearest medical facilities
  • check emergency procedures with local dive operators
  • ensure dive insurance covers evacuation if required
24/7 Available

Divers Alert Network

Diving emergency assistance available through DAN World.

+1-919-684-9111
  • 24/7 emergency hotline
  • Diving medical assistance
  • Evacuation coordination
View official DAN emergency contacts

Emergency contacts are provided for reference. Always verify local emergency services before diving.

Marine Life at South Point - Koh Larn

Beneath the surface, the marine life at South Point offers a constant display of activity across its reef. Divers consistently encounter schools of vibrant butterflyfish and parrotfish, their feeding patterns a perpetual motion on the corals. Distinctive lionfish often lurk among the ledges, while curious batfish commonly circle in the mid-water. Macro enthusiasts will find a rewarding hunt for various nudibranch species, adding splashes of unexpected color to the reef's texture. Keep an attentive eye for the cryptic cuttlefish, blending seamlessly until they decide to reveal themselves. On the sandy patches, or tucked beneath overhangs, bamboo sharks are regular sightings, contributing to the site's rich biodiversity. Occasional sightings of moray eels peering from crevices or triggerfish patrolling their territory further enhance the experience, making every dive a dynamic encounter with the reef's inhabitants.

1 / 2
Image contributors:Alain Feulvarch, Diego Delso + 1 more
Want to contribute photos or local dive knowledge? Learn how to contribute

Dive Centers Near South Point - Koh Larn

Member Diving
14.2 km away

Member Diving

4.9| 796 reviews
Today: 09:00 - 21:00
Sun09:00 - 21:00
Mon09:00 - 21:00
Tue09:00 - 21:00
Wed09:00 - 21:00
Thu09:00 - 21:00
Fri09:00 - 21:00
Sat09:00 - 21:00
Dive Station Pattaya

Dive Station Pattaya

4.9| 384 reviews
14.2 km

Nearest Airports

Nearest airports to help plan travel to this dive area.

U-Tapao–Rayong–Pattaya International AirportUTP
35 km
Suvarnabhumi AirportBKK
87 km
Hua Hin AirportHHQ
94 km
💵Currency:THB

Search Flights

Check available flights and routes on Expedia, using the nearby airports listed in this section.

Search Flights on Expedia

Frequently Asked Questions

Is South Point suitable for beginner divers?

Yes, South Point and many other areas around Koh Larn are considered suitable for beginner divers. With calm waters and shallow reef zones, it's an ideal spot for those with an Open Water certification. Deeper areas or stronger currents might be better for advanced divers.

What is the typical water visibility at Koh Larn?

Visibility at Koh Larn generally averages 6–12 meters (20–40 feet) year-round. During the dry season, from October to February, conditions are often clearest, with visibility sometimes exceeding 15 meters (50 feet).

Can I dive at South Point year-round?

Koh Larn is diveable throughout the year due to its protected bays and short boat ride from Pattaya. Dive trips operate daily, even during the monsoon season, though surface conditions may vary.

Are there drift dives at South Point?

Yes, South Point is recognized as a site offering drift diving opportunities. These are typically gentle drifts on moderate current days, making them popular with intermediate divers and providing access to diverse marine habitats.

What marine life can I expect to see at South Point?

Divers consistently spot a variety of reef fish including butterflyfish, parrotfish, lionfish, and batfish. Macro enthusiasts can find nudibranchs and occasionally cuttlefish. Bamboo sharks are also sighted.

What certifications are recommended for diving at South Point?

An Open Water Diver certification is sufficient for most of Koh Larn's dive sites, including many parts of South Point. For deeper routes or to fully experience drift dives, an Advanced Open Water Diver certification is recommended.

Planning to dive South Point - Koh Larn?

Send one inquiry and receive offers directly from the best verified local dive operators.

Fast, free, and secure booking.

Share this dive site