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Similan Islands Surf Forecast
/ Andaman Sea (9 surf breaks) /
Similan Islands surfForecast / Andaman Sea / Thailand
48hr Weather and Surf, issued 6 pm Friday 01 Aug 2025 +07
How big are the waves at Similan Islands today?
The current surf forecast for Similan Islands at 12AM is: 0.3m 18s primary swell from a Southwest direction and 0.6m 7s secondary swell from a West-southwest direction, 0.4m 7s secondary swell from a Northwest direction (forecast issued at 06:00pm August 01). The wind direction is predicted to be cross-onshore.
| Time (+07) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Aug) | - | - |
| Afternoon (02 Aug) | 2.5ft (0.8m) | 7s |
| Evening (02 Aug) | 1ft (0.3m) | 18s |
Table - waves today at Similan Islands. (Swell directed towards the surf break)
Friday 01 | Saturday 02 | Sunday 03 | Monday 04 | |||||||||||||||||||||
| 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) (?) | 7 | 18 | 18 | 18 | 18 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 119 | 101 | 92 | 95 | 104 | 160 | 219 | 286 | 294 | 303 | 256 | 244 | 199 | 204 | 281 | 297 | 302 | 363 | 382 | 361 | 359 | 393 | 449 | 480 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross | glass | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | glass | glass | glass | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 2:27PM 1.59 | 3:11AM 1.66 | 3:13PM 1.42 | 4:13AM 1.56 | 4:32PM 1.27 | 5:43AM 1.53 | ||||||||||||||||||
Low Tide / height (m) | 8:32PM 0.60 | 9:15AM 0.82 | 9:12PM 0.73 | 10:37AM 0.92 | 10:20PM 0.84 | 12:58PM 0.89 | ||||||||||||||||||
Friday 01 | Saturday 02 | Sunday 03 | Monday 04 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - |
| Sunset | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - |
 |  | |  | | | |  | | | |  | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | 2 | 1 | - | - | 2 | 1 | 1 | 1 | - | 1 | - | - | - | - | - | - | 1 | 1 | - | 1 | - |
| Temp. °C | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 |
| Feels °C (?) | 33 | 33 | 34 | 31 | 31 | 31 | 32 | 32 | 31 | 32 | 32 | 33 | 33 | 33 | 32 | 32 | 31 | 32 | 30 | 29 | 29 | 29 | 29 | 29 |
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Break
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 Andaman Sea
Continuing clean conditions at Similan Islands (calm at Phuket Airport 89 km from Similan Islands). 0.7m 7s swell from the WSW with a 0.2m 13s groundswell from the SW and a 0.2m 17s long period groundswell, also from the SW. 3 swells combining to make bigger set waves.
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