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Surf Forecasts:
Thailand surfForecast / Simeulue Island / Indonesia
48hr Weather and Surf, issued 6 pm Wednesday 20 Aug 2025 WIB
How big are the waves at Thailand today?
The current surf forecast for Thailand at 8PM is: 0.9m 18s primary swell from a South-southwest direction and 0.9m 13s secondary swell from a Southwest direction (forecast issued at 06:00pm August 20). The wind direction is predicted to be onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | - | - |
| Afternoon (20 Aug) | 3ft (0.9m) | 18s |
| Evening (20 Aug) | 4.5ft (1.4m) | 17s |
Table - waves today at Thailand. (Swell directed towards the surf break)
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||||||||
| 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 | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 17 | 17 | 16 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 773 | 803 | 1189 | 1085 | 1162 | 1064 | 1240 | 1203 | 1256 | 1224 | 1223 | 1207 | 1300 | 1249 | 1307 | 1323 | 1400 | 1442 | 1545 | 1500 | 1559 | 1662 | 1693 | 1560 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross- on | cross- on | glass | cross- on | glass | glass | on | cross- on | cross- on | cross- on | cross- on | glass | glass | cross- on | on | on | glass | glass | glass | glass | glass | glass |
High Tide / height (m) | 4:45PM 0.32 | 5:00AM 0.66 | 5:30PM 0.38 | 5:42AM 0.70 | 6:07PM 0.45 | 6:19AM 0.72 | ||||||||||||||||||
Low Tide / height (m) | 10:03PM 0.12 | 12:04PM 0.07 | 11:00PM 0.09 | 12:32PM 0.05 | 11:44PM 0.06 | 12:57PM 0.04 | ||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - |
| Sunset | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - |
 |  | | |  |  |  | | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 28 |
| Feels °C (?) | 31 | 32 | 30 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 30 | 30 | 31 | 31 | 32 | 31 | 30 | 29 | 30 | 31 | 29 | 30 | 30 | 31 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Simeulue Island
Continuing clean conditions at Thailand (light winds from the NNE at Medan/Polonia Airport 294 km from Thailand). 0.9m 13s groundswell from the SW with a 0.4m 9s swell from the S and a 0.4m 8s swell from the WNW. 3 swells combining to make bigger set waves.
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