Surf Forecasts:
How big are the waves at Nai Harn Beach today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 3.5ft (1.0m), 8s period with W swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 0.5ft (0.2m), 21s period with WSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 0.5ft (0.2m), 22s period with WSW swell.
The current surf forecast for Nai Harn Beach at 6PM is: 0.2m 21s primary swell from a West-southwest direction and 0.1m 14s secondary swell from a Southwest direction (forecast issued at 12:00pm August 18). An open ocean swell of 1.0m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (+07) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 3.5ft (1.0m) | 8s |
| Afternoon (18 Aug) | 0.5ft (0.2m) | 21s |
| Evening (18 Aug) | 0.5ft (0.2m) | 22s |
Table - waves today at Nai Harn Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue morning. Warm (max 29°C on Tue morning, min 28°C on Tue morning). Mainly fresh winds. | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 8 | SW 22 | WSW 21 | WSW 22 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 8 | WSW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 113 | 18 | 45 | 45 | 67 | 67 | 80 | 91 | 130 | 193 | 206 | 219 | 232 | 302 | 373 | 408 | 389 | 349 | 358 | 327 | 61 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:36PM1.58m | 2:04AM1.62m | 2:05PM1.41m | 2:39AM1.50m | 2:39PM1.24m | ||||||||||||||||
Low Tide | 7:38AM0.38m | 7:44PM0.32m | 8:14AM0.52m | 8:12PM0.47m | 8:56AM0.66m | 8:43PM0.62m | |||||||||||||||
 |  | |  | |  | |  | | | |  | | | | | | | |  | | |
 | 6:18 | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | 6:40 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:39 | — | — |
mm | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — |
Temp °C | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 22 | WSW 21 | WSW 22 | W 8 | W 8 | WSW 21 | WSW 20 | WSW 20 | WSW 20 | WSW 20 | WSW 20 | WSW 19 | — | — | — | WSW 18 | WSW 18 | WSW 18 | WSW 18 | WSW 18 |
| kJ | 8 | 18 | 45 | 45 | 12 | 20 | 44 | 41 | 77 | 38 | 75 | 75 | 74 | — | — | — | 64 | 63 | 62 | 61 | 61 |
Swell 2 Height (m) Direction Period (s) | W 23 | W 14 | SW 14 | SW 14 | WSW 22 | WSW 22 | W 13 | W 13 | SW 13 | — | W 13 | W 13 | W 13 | — | — | — | — | — | — | — | — |
| kJ | 10 | 4 | 8 | 7 | 45 | 45 | 4 | 3 | 7 | — | 3 | 4 | 3 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 14 | W 13 | — | — | W 16 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 4 | 4 | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | W 7 | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 8 | W 8 |
| kJ | 113 | 114 | 108 | 127 | 67 | 67 | 80 | 91 | 130 | 193 | 206 | 219 | 232 | 302 | 373 | 408 | 389 | 349 | 358 | 327 | 299 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 635 | 4 | 4 | 4 | 636 | 635 | 635 | 635 | 635 | 636 | 636 | 636 | 636 | 601 | 635 | 635 | 635 | 636 | 24 | 4 |
Best forecast wave conditions in Phuket | |||||||||||||||||||||
Best forecast wave conditions in Thailand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nai Harn Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest