Surf Forecasts:
How big are the waves at Similan Islands today (19 Sep):
- Afternoon surf: Afternoon surf (19 Sep, local time) - 7ft (2.2m), 8s period with W swell.
- Evening surf: Evening surf (19 Sep, local time) - 6ft (1.9m), 8s period with W swell.
The current surf forecast for Similan Islands at 10PM is: 1.9m 8s primary swell from a West direction and 0.4m 14s secondary swell from a Southwest direction (forecast issued at 06:00pm September 19). The wind direction is predicted to be cross-onshore.
| Time (+07) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | - | - |
| Afternoon (19 Sep) | 7ft (2.2m) | 8s |
| Evening (19 Sep) | 6ft (1.9m) | 8s |
Table - waves today at Similan Islands. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 43mm), heaviest during Sat night. Warm (max 28°C on Sat afternoon, min 26°C on Sat night). Winds decreasing (fresh winds from the SW on Sat night, calm by Mon morning). | |||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | |||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 659 | 565 | 453 | 475 | 592 | 573 | 476 | 368 | 314 | 270 | 251 | 248 | 245 | 245 | 242 | 239 | 233 | 176 | 134 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-off | cross-off | cross-off | glassy | glassy | on | cross-on | glassy |
High Tide | 2:26PM1.23m | 3:38AM1.42m | 5:23PM1.14m | 6:11AM1.44m | 7:31PM1.30m | ||||||||||||||
Low Tide | 8:05PM0.87m | 11:26AM0.98m | 10:34PM1.02m | 1:41PM0.82m | |||||||||||||||
 |  | | |  | | | | |  |  | | | |  |  | | | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | 6:27 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:25 | — | — |
mm | 1 | 3 | 4 | 5 | 8 | 2 | 3 | 3 | 3 | — | — | 1 | 1 | 1 | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 26 | 26 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 |
Feels °C | 27 | 27 | 28 | 25 | 24 | 26 | 27 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 32 | 32 | 31 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | W 8 | SW 14 | SW 18 | SW 17 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
| kJ | 103 | 74 | 453 | 74 | 109 | 243 | 476 | 368 | 314 | 270 | 229 | 196 | 164 | 142 | 124 | 124 | 100 | 100 | 80 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 14 | SW 18 | SW 14 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
| kJ | 53 | 51 | 74 | 111 | 73 | 150 | 290 | 280 | 264 | 163 | 251 | 248 | 245 | 245 | 242 | 239 | 233 | 176 | 134 |
Swell 3 Height (m) Direction Period (s) | — | WSW 18 | SW 18 | — | — | — | SW 17 | — | — | SW 13 | — | — | SE 4 | SE 4 | SSE 4 | — | SSE 4 | SSE 4 | SSE 4 |
| kJ | — | 32 | 50 | — | — | — | 106 | — | — | 44 | — | — | 5 | 4 | 4 | — | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | W 8 | WSW 8 | W 8 | — | SSE 4 | SSE 5 | SSE 4 | SSE 4 | SSE 4 | — | — | — | SSE 4 | — | — | — |
| kJ | 659 | 565 | — | 475 | 592 | 573 | — | 6 | 5 | 8 | 13 | 8 | — | — | — | 4 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 97 | 97 | 67 | 97 | 97 | 97 | 67 | 67 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 97 | 67 | 0 |
Best forecast wave conditions in Andaman Sea | |||||||||||||||||||
Best forecast wave conditions in Thailand | |||||||||||||||||||
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