Surf Forecasts:
Koh Lanta - Khlong Dao surf forecast from 5 Aug 2026:
- Best quality surf: Thursday 6 Aug, 4PM (local time) - 1.5ft (0.5m), 8s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 12 Aug, 1PM (local time) - 3ft (0.9m), 8s period, WSW swell with 105 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 4PM (local time) - 1.5ft (0.5m), 8s period with SW 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 Thursday (Aug 06) at 4PM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.1m and 16s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Koh Lanta - Khlong Dao in the next 16 days are 0.9m 8s and forecast to arrive on Wednesday (Aug 12) at 1PM. 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 Wednesday (Aug 12) at 10AM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Thu 6th Aug) | 1.5ft (0.5m) 8s |
| Best Surf | 4PM (Thu 6th Aug) | 1.5ft (0.5m) 8s |
| Most Powerful | 1PM (Wed 12th Aug) | 3ft (0.9m) 8s |
Table - best surf conditions forecast for Koh Lanta - Khlong Dao over the next 16 days.
Short Range ForecastHeavy rain (total 41mm), heaviest during Wed night. Warm (max 29°C on Wed night, min 27°C on Fri night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Tue morning. Warm (max 29°C on Sat night, min 28°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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 9 | SW 8 | SW 8 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | SW 8 | SW 8 | WSW 4 | SW 8 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 25 | 35 | 27 | 25 | 24 | 12 | 65 | 0 | 24 | 23 | 23 | 11 | 10 | 10 | 62 | 89 | 23 | 23 | 0 | 22 | 16 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | off | off | off | off | cross-off | off | off |
High Tide | 4:40AM2.33m | 4:50PM2.06m | 5:46AM2.20m | 6:10PM1.83m | 7:20AM2.14m | 8:08PM1.76m | 8:59AM2.24m | 9:48PM1.89m | 10:13AM2.45m | 10:53PM2.11m | 11:07AM2.67m | 11:42PM2.32m | 11:51AM2.84m | 00:22AM2.48m | |||||||
Low Tide | 10:53AM0.75m | 11:08PM0.62m | 12:13PM0.90m | 00:26AM0.80m | 2:07PM0.91m | 2:12AM0.85m | 3:44PM0.73m | 3:42AM0.73m | 4:48PM0.47m | 4:45AM0.54m | 5:36PM0.24m | 5:35AM0.37m | 6:17PM0.06m | ||||||||
 |  |  | | |  | | | | | | | |  | | | | | | | | |
 | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — |
 | — | 6:42 | — | — | 6:42 | — | — | 6:42 | — | — | 6:40 | — | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — |
mm | 4 | — | — | 1 | 3 | 12 | 8 | 3 | 3 | 3 | 2 | — | — | — | 4 | 5 | 4 | 4 | 3 | 1 | — |
Temp °C | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 29 | 29 |
Feels °C | 31 | 30 | 30 | 30 | 30 | 30 | 28 | 29 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 30 | 29 | 31 | 29 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 9 | SW 8 | SW 8 | SW 9 | — | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | SW 8 | SW 8 | — | SW 8 | SW 8 |
| kJ | 25 | 35 | 27 | 25 | 24 | 12 | — | 17 | 24 | 23 | 23 | 11 | 10 | 10 | 62 | 89 | 23 | 23 | — | 22 | 16 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 16 | W 17 | — | W 16 | — | S 5 | — | WSW 10 | WSW 9 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 5 | 6 | — | 5 | — | 2 | — | 9 | 17 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | — | — | — | — | WSW 3 | SW 8 | SW 4 | — | — | WSW 3 | W 3 | WSW 4 | WSW 3 | SW 8 | SW 8 | WSW 3 | — | WSW 4 | WSW 4 | — |
| kJ | 5 | — | — | — | — | 2 | 65 | 3 | — | — | 1 | 1 | 5 | 2 | 16 | 32 | 1 | — | 20 | 5 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 655 | 0 | 639 | 790 | 523 | 790 | 782 | 790 | 523 | 639 | 523 | 639 | 639 | 523 | 613 | 639 | 523 | 83 | 648 | 91 | 83 |
Best forecast wave conditions in Andaman Sea | |||||||||||||||||||||
Best forecast wave conditions in Thailand | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Koh Lanta - Khlong Dao surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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