Surf Forecasts:
Koh Lanta - Khlong Dao surf forecast from 14 Jun 2026:
- Best quality surf: Sunday 21 Jun, 7PM (local time) - 1.5ft (0.5m), 6s period, WSW swell with cross-offshore winds.
- Most powerful swell: Sunday 21 Jun, 4AM (local time) - 3.5ft (1.0m), 8s period, W swell with 115 kJ wave energy.
- Next surfable swell (1★+): Sunday 21 Jun, 7PM (local time) - 1.5ft (0.5m), 6s period with WSW swell.
Best Forecast Surf Conditions for Koh Lanta - Khlong Dao this week:
The surf forecast for Koh Lanta - Khlong Dao over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jun 21) at 7PM. The primary swell is predicted to be 0.5m and 6s period with a secondary swell of 0.2m and 9s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Koh Lanta - Khlong Dao in the next 16 days are 1.0m 8s and forecast to arrive on Sunday (Jun 21) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Jun 20) at 7PM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 21st Jun) | 1.5ft (0.5m) 6s |
| Best Surf | 7PM (Sun 21st Jun) | 1.5ft (0.5m) 6s |
| Most Powerful | 4AM (Sun 21st Jun) | 3.5ft (1.0m) 8s |
Table - best surf conditions forecast for Koh Lanta - Khlong Dao over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 17mm), heaviest on Sun night. Warm (max 29°C on Sun morning, min 28°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 25mm), heaviest during Fri night. Warm (max 29°C on Wed morning, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | SW 8 | SW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 3 | 2 | 2 | 3 | 2 | 6 | 6 | 2 | 2 | 6 | 5 | 5 | 5 | 6 | 6 | 2 | 2 | 2 | 3 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | off | cross-off | off | cross-off | off | off | cross-off | glassy | cross-off | cross-off | off | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:17AM2.84m | 11:45PM2.38m | 12:05PM2.92m | 00:36AM2.39m | 12:52PM2.93m | 1:24AM2.37m | 1:37PM2.88m | 2:11AM2.30m | 2:20PM2.76m | 2:58AM2.21m | 3:04PM2.60m | 3:45AM2.11m | 3:47PM2.40m | ||||||||
Low Tide | 5:44PM0.19m | 5:43AM0.24m | 6:33PM0.11m | 6:30AM0.25m | 7:20PM0.09m | 7:16AM0.31m | 8:06PM0.14m | 8:01AM0.41m | 8:52PM0.23m | 8:46AM0.55m | 9:36PM0.35m | 9:33AM0.71m | 10:21PM0.49m | ||||||||
 | |  |  | |  | | | | | | | |  |  | | | | |  |  | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:39 | — | — | 6:40 | — | — | 6:40 | — | — | 6:40 | — | — | 6:40 | — | — | 6:42 | — | — | 6:42 | — |
mm | 5 | 1 | 7 | — | 2 | — | — | — | 2 | 2 | — | 4 | 1 | — | 2 | — | 1 | 15 | 13 | 14 | 1 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 29 | 29 | 27 | 26 | 25 | 27 |
Feels °C | 32 | 31 | 31 | 31 | 31 | 31 | 33 | 32 | 31 | 33 | 33 | 32 | 33 | 32 | 32 | 33 | 31 | 28 | 27 | 25 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | — | S 4 | WSW 8 | SW 8 | SW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 |
| kJ | 3 | 3 | 2 | 2 | 3 | — | 1 | 6 | 2 | 2 | 6 | 5 | 5 | 5 | 6 | 6 | 2 | 2 | 2 | 3 | 21 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SW 8 | S 4 | — | — | — | — | — | — | — | — | — | — | — | — | W 7 | — |
| kJ | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 3 | W 3 | WNW 3 | W 3 | WSW 3 | WSW 3 | WSW 8 | — | — | — | — | — | — | — | — | — | — | — | W 3 | W 4 | W 4 |
| kJ | 1 | 3 | 2 | 1 | 1 | 1 | 6 | — | — | — | — | — | — | — | — | — | — | — | 1 | 12 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 91 | 648 | 639 | 639 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 91 | 83 | 83 | 82 | 83 | 83 | 91 | 83 | 790 |
Best forecast wave conditions in Andaman Sea | |||||||||||||||||||||
Best forecast wave conditions in Thailand | |||||||||||||||||||||
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Information about the Koh Lanta - Khlong Dao Surf forecast
The above surf forecast table for Koh Lanta - Khlong Dao provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Koh Lanta - Khlong Dao can be found by selecting the local surf guide option on the grey menu. Our Koh Lanta - Khlong Dao surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Koh Lanta - Khlong Dao) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Koh Lanta - Khlong Dao may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Andaman Sea? If you are looking for accommodation near Koh Lanta - Khlong Dao, camping, hotels and holiday cottages in Andaman Sea, consider staying in Krabi which is 48 km (30 miles) away. Other places in and around Andaman Sea where you can find information about places to rent, and car hire include Trang which is 65 km (40 miles) away, Huai Yot, Ban Talat Yai and Phuket.
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