Ko Losin
One of the highlights of this dive site is the frequent sightings of magnificent whale sharks, which often approach the anchored boats and can be observed up close while snorkeling. Additionally, Dragonfly Catsharks, Mobula, and Manta Rays can also be spotted in the area.
As it is only accessible by boat, this dive site remains untouched by the shadows of nearby islands, allowing for an unparalleled diving adventure. However, due to the lack of natural protection, access is limited to the months of August and September when the waves are more manageable.
Surrounded by vast clusters of vibrant hard corals, this location is a haven for marine life and is popular among divers of all skill levels. With a visibility of 19m and a maximum depth of 23m, this dive site offers an ideal environment for both beginner and advanced divers to explore the underwater wonders.
Plan your dive trip to this extraordinary spot in the Gulf of Thailand and immerse yourself in a memorable and enriching diving experience.
Diving Conditions Score for Ko Losin
Good diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Ko Losin
Depth
23m
Visibility
19m
Experience Level
Weather Conditions for Ko Losin
Wave Height
0.22m
Wind Speed
18 m/s
Water Temp
30.9°C
Visibility
10km
Cloud Cover
94%
Wave Period
2.5s
Air Temperature
27.5°C
Precipitation
0.9 mm
Dive Score Chart for Ko Losin
Best time to dive: 7:00 with score 8.247903703703704/10. Water conditions: Waves 0.12m, Wind 12.3 m/s.Best night dive time: 3:00 with score 7.657086419753086/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Ko Losin are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.
Score: 8.2/10
Waves: 0.12m (2.7s), Wind: 12.3 m/s
Score: 7.7/10
Waves: 0.1m, Wind: 8.6 m/s
Seasonal Analysis for Ko LosinAlpha
Historical patterns and best seasons for diving at Ko Losin
The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.
Monthly Dive Score Analysis - Seasonal Diving Conditions
Higher values indicate better diving conditions
Seasonal DiveScore Chart
This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.
Higher values indicate better diving conditions
Best Season for Ko Losin
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Ko Losin
Ideal Conditions for Ko Losin
Water Temp
27.2°C / 81.0°F
August
Visibility
10.4m / 34.1ft
January
Wave Height
2.0m / 6.6ft
October
Wave Period
8.0s
January
Seasonal Insights for Ko Losin
Ko Losin shows typical northern hemisphere patterns with May being the warmest month (28.6°C) and December the coldest (22.9°C). The calmest conditions typically occur in October with average wave heights of 2.0m and wave periods of 8.0s. The most comfortable wave conditions are in October with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). January is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during October to December, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.
Last updated: 1 min. ago - Jun 21, 2026