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Similan Islands Surf Forecast
/ Andaman Sea (9 surf breaks) /
Surf Forecasts:
Similan Islands surfForecast / Andaman Sea / Thailand
48hr Weather and Surf, issued 12 am Tuesday 30 Sep 2025 +07
How big are the waves at Similan Islands today?
The current surf forecast for Similan Islands at 7AM is: 2.3m 8s primary swell from a West direction and 0.3m 16s secondary swell from a Southwest direction, 0.1m 12s secondary swell from a Southwest direction (forecast issued at 12:00am September 30). The wind direction is predicted to be cross-onshore.
| Time (+07) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Sep) | 7ft (2.2m) | 8s |
| Afternoon (30 Sep) | 6.5ft (2.0m) | 8s |
| Evening (30 Sep) | 6.5ft (2.0m) | 8s |
Table - waves today at Similan Islands. (Swell directed towards the surf break)
Tuesday 30 | Wednesday 01 | Thursday 02 | ||||||||||||||||||||||
| 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 | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 881 | 825 | 836 | 692 | 572 | 516 | 533 | 520 | 418 | 372 | 382 | 339 | 298 | 252 | 219 | 187 | 187 | 187 | 219 | 219 | 191 | 161 | 132 | 107 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | glass | glass | glass | glass | cross- on | cross- on | cross- on | glass | cross- on | cross |
High Tide / height (m) | 2:05AM 1.58 | 2:32PM 1.23 | 3:52AM 1.45 | 5:40PM 1.21 | 6:09AM 1.52 | |||||||||||||||||||
Low Tide / height (m) | 7:26PM 0.70 | 8:38AM 0.85 | 8:20PM 0.88 | 11:16AM 0.92 | 11:08PM 0.98 | 1:13PM 0.75 | ||||||||||||||||||
Tuesday 30 | Wednesday 01 | Thursday 02 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:16 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:21 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - |
 | |  |  | | | | |  | | | | | | |  |  | | |  |  | | |  | |
Rain (mm) | 2 | 4 | 6 | 2 | 1 | 4 | 3 | 2 | - | 1 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 28 |
| Feels °C (?) | 24 | 24 | 24 | 25 | 26 | 27 | 26 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 31 | 30 | 30 | 32 | 31 | 31 |
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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
Cross-on wind has become light (light winds from the NW.(Wind varies from 280 to 350 degs) at Phuket International Airport 91 km from Similan Islands). 2.2m 8s swell from the W which is too big for here.
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