Surf Forecasts:
Thailand surf forecast from 21 Jun 2026:
- Best quality surf: Sunday 21 Jun, 10PM (local time) - 5ft (1.5m), 14s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 28 Jun, 10AM (local time) - 6ft (1.8m), 18s period, SSW swell with 2,024 kJ wave energy.
- Next surfable swell (1★+): Sunday 21 Jun, 10PM (local time) - 5ft (1.5m), 14s period with SSW swell.
Best Forecast Surf Conditions for Thailand this week:
The surf forecast for Thailand over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jun 21) at 10PM. The primary swell is predicted to be 1.5m and 14s period with a secondary swell of 1.0m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Thailand in the next 16 days are 1.8m 18s and forecast to arrive on Sunday (Jun 28) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 21st Jun) | 5ft (1.5m) 14s |
| Best Surf | 10PM (Sun 21st Jun) | 5ft (1.5m) 14s |
| Most Powerful | 10AM (Sun 28th Jun) | 6ft (1.8m) 18s |
Table - best surf conditions forecast for Thailand over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 37mm), heaviest during Sun morning. Warm (max 29°C on Tue morning, min 24°C on Sun morning). Winds decreasing (fresh winds from the W on Sun morning, calm by Mon morning). | Days 4-6 Weather SummaryHeavy rain (total 26mm), heaviest during Wed night. Warm (max 29°C on Wed afternoon, min 25°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | |||||||||||||||
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 14 | SW 14 | SW 14 | SW 13 | SW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 16 | SW 16 | SW 15 | SSW 19 | SSW 19 | SSW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1031 | 1016 | 947 | 525 | 754 | 929 | 1098 | 897 | 818 | 711 | 720 | 545 | 638 | 486 | 412 | 692 | 783 | 940 | 1328 | 1576 | 1505 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | off | glassy | cross | cross-off | cross-off | cross-on | cross | glassy | cross-on | cross-on | off | cross | cross-off | cross-off | glassy | glassy | glassy | glassy | cross-off |
High Tide | 11:50PM0.46m | 11:33AM0.51m | 00:59AM0.49m | 12:30PM0.44m | 2:06AM0.52m | 1:38PM0.38m | 3:05AM0.55m | 2:51PM0.34m | 3:55AM0.58m | 3:56PM0.33m | 4:39AM0.60m | 4:49PM0.32m | |||||||||
Low Tide | 5:32PM0.13m | 5:24AM0.25m | 6:16PM0.15m | 7:06AM0.28m | 7:02PM0.15m | 8:51AM0.27m | 7:50PM0.15m | 10:11AM0.23m | 8:39PM0.14m | 11:05AM0.18m | 9:26PM0.12m | 11:44AM0.14m | 10:11PM0.10m | ||||||||
 |  |  |  |  |  | | |  | | | | |  | | | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 6:44 | — | — | 6:44 | — | — | 6:44 | — | — | 6:44 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — |
mm | 25 | 4 | — | — | — | 3 | 2 | — | 3 | 2 | — | 11 | 4 | 1 | — | — | 2 | 6 | — | — | 9 |
Temp °C | 25 | 25 | 26 | 28 | 28 | 27 | 29 | 29 | 28 | 28 | 29 | 28 | 27 | 26 | 26 | 28 | 28 | 27 | 28 | 29 | 27 |
Feels °C | 24 | 27 | 29 | 32 | 31 | 30 | 32 | 31 | 31 | 33 | 33 | 32 | 30 | 29 | 30 | 32 | 32 | 31 | 32 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 19 | SSW 18 |
| kJ | 1031 | 1016 | 947 | 525 | 754 | 929 | 1098 | 897 | 818 | 711 | 720 | 545 | 638 | 486 | 412 | 692 | 783 | 940 | 716 | 1576 | 1505 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | W 8 | W 7 | SSW 16 | SSW 18 | W 7 | W 9 | W 8 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | S 9 | S 9 | W 8 | SSW 21 | SSW 19 | SW 13 | SW 13 |
| kJ | 75 | 193 | 87 | 412 | 180 | 23 | 25 | 22 | 44 | 44 | 43 | 39 | 40 | 39 | 42 | 38 | 31 | 584 | 1328 | 562 | 495 |
Swell 3 Height (m) Direction Period (s) | SSE 11 | SSE 10 | SSE 10 | W 7 | W 7 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | WNW 8 | W 8 | S 9 | W 8 | W 8 | W 8 | W 8 |
| kJ | 37 | 77 | 55 | 48 | 35 | 33 | 26 | 15 | 14 | 7 | 7 | 6 | 6 | 6 | 21 | 33 | 38 | 29 | 32 | 33 | 31 |
Wind waves Height (m) Direction Period (s) | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 397 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 564 | 564 | 0 | 0 | 207 | 0 | 0 | 252 | 118 | 0 | 118 | 14 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Simeulue Island | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Thailand 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 Thailand Surf forecast
The above surf forecast table for Thailand provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Thailand can be found by selecting the local surf guide option on the grey menu. Our Thailand 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 (Thailand) 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 Thailand 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 Simeulue Island? If you are looking for accommodation near Thailand, camping, hotels and holiday cottages in Simeulue Island, consider staying in Batoe Nasera which is 84 km (52 miles) away.
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