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Surf Forecasts:
Thailand surfForecast / Simeulue Island / Indonesia
48hr Weather and Surf, issued 12 pm Friday 15 May 2026 WIBForecast update in hr min s Forecast update imminent
Thailand surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thailand sea temperature is
30.6° C
(Which is slightly warmer than usual)How big are the waves at Thailand today?
The current surf forecast for Thailand at 4PM is: 1.6m 16s primary swell from a South-southwest direction and 1.4m 9s secondary swell from a West direction (forecast issued at 12:00pm May 15). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 4ft (1.2m) | 13s |
| Afternoon (15 May) | 5ft (1.6m) | 16s |
| Evening (15 May) | 5ft (1.5m) | 15s |
Table - waves today at Thailand. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 37mm), heaviest during Sun night. Warm (max 30°C on Sat morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||||||||
10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 13 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | W 9 | SW 14 | SSW 12 | W 9 | SSW 13 | |
454 | 454 | 1224 | 949 | 924 | 850 | 862 | 704 | 683 | 733 | 683 | 555 | 547 | 461 | 378 | 344 | 318 | 263 | 276 | 225 | 248 | 252 | 232 | 236 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-off | cross-off | glassy | glassy | cross | cross-off | cross-off | cross | cross | cross-off | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 5:01PM0.50m | 5:35AM0.75m | 5:46PM0.48m | 6:15AM0.79m | 6:31PM0.45m | 6:58AM0.80m | ||||||||||||||||||
Low Tide | 10:54PM0.01m | 12:08PM0.04m | 11:30PM-0.01m | 12:54PM0.01m | 00:07AM-0.02m | |||||||||||||||||||
 |  | |  |  | | |  | | | |  | | | | | | | | | |  | | | |
 | 6:24 | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | 6:37 |
3 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | — | — | 3 | 3 | — | 1 | 2 | 2 | 6 | 7 | 3 | 1 | |
Temp °C | 27 | 29 | 29 | 28 | 28 | 27 | 28 | 28 | 29 | 30 | 29 | 27 | 28 | 27 | 26 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 |
27 | 32 | 32 | 31 | 32 | 31 | 31 | 31 | 32 | 31 | 31 | 28 | 30 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 30 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | W 9 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 |
 kJ | 454 | 257 | 1224 | 949 | 924 | 850 | 862 | 704 | 683 | 733 | 683 | 555 | 547 | 461 | 378 | 229 | 192 | 192 | 230 | 225 | 225 | 220 | 210 | 169 |
Swell 2 Height (m) Direction Period (s) | S 16 | SSW 13 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 14 | SSW 12 | SSW 13 | SSW 13 |
| kJ | 339 | 454 | 306 | 304 | 304 | 264 | 264 | 225 | 225 | 225 | 185 | 184 | 188 | 189 | 192 | 344 | 318 | 263 | 276 | 167 | 248 | 252 | 232 | 236 |
Swell 3 Height (m) Direction Period (s) | SW 16 | S 16 | SSE 8 | SSE 8 | SW 18 | SW 15 | SW 15 | SW 15 | SW 15 | S 7 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 16 | S 16 | SW 14 | SW 14 | SW 15 | SW 15 | S 14 | SW 14 | SW 14 | SW 14 |
| kJ | 367 | 334 | 6 | 6 | 48 | 54 | 54 | 54 | 106 | 1 | 65 | 161 | 161 | 91 | 169 | 46 | 160 | 169 | 171 | 171 | 148 | 169 | 206 | 167 |
Wind waves Height (m) Direction Period (s) | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | NW 3 | WNW 4 | NW 4 | NNW 4 | NNW 3 | NNW 4 | NNW 4 | NW 4 | — | — | NNW 4 |
| kJ | 215 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 8 | 16 | 5 | 3 | 12 | 17 | 17 | — | — | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 260 | 564 | 0 | 0 | 0 | 0 | 207 | 0 | 0 | 94 | 253 | 207 | 207 | 252 | 252 | 252 | 207 | 253 | 253 | 253 | 253 | 253 | 253 | 207 |
Best forecast wave conditions in Simeulue Island | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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