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Surf Forecasts:
Nai Harn Beach surfForecast / Phuket / Thailand
48hr Weather and Surf, issued 6 pm Wednesday 20 May 2026 +07Forecast update in hr min s Forecast update imminent
Nai Harn Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nai Harn Beach sea temperature is
31.0° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Nai Harn Beach today?
The current surf forecast for Nai Harn Beach at 11PM is: 0.2m 17s primary swell from a West-southwest direction and 0.2m 14s secondary swell from a West-southwest direction (forecast issued at 06:00pm May 20). An open ocean swell of 1.4m 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 (20 May) | - | - |
| Afternoon (20 May) | 0.5ft (0.2m) | 16s |
| Evening (20 May) | 0.5ft (0.2m) | 17s |
Table - waves today at Nai Harn Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 86mm), heaviest during Fri night. Warm (max 29°C on Wed afternoon, min 27°C on Thu morning). Winds increasing (light winds from the WNW on Thu afternoon, fresh winds from the WSW by Sat morning). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 16 | WSW 16 | WSW 17 | WSW 15 | WSW 15 | W 7 | WSW 15 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | |
26 | 26 | 29 | 44 | 45 | 57 | 47 | 149 | 127 | 153 | 154 | 154 | 154 | 163 | 195 | 173 | 178 | 156 | 160 | 137 | 144 | 125 | 177 | 203 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | 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 | 1:26AM1.47m | 1:36PM1.80m | 2:25AM1.36m | 2:32PM1.64m | 3:38AM1.29m | |||||||||||||||||||
Low Tide | 7:22PM0.19m | 7:12AM0.42m | 8:17PM0.31m | 8:07AM0.56m | 9:21PM0.42m | 9:18AM0.69m | ||||||||||||||||||
 |  | | | | |  | | | | | |  |  | | | | | | | | | | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — |
 | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | 6:37 |
4 | 3 | 2 | 3 | 5 | 4 | 6 | 5 | 1 | 1 | 2 | 1 | — | — | 4 | 3 | 6 | 5 | 6 | 2 | 4 | 8 | 7 | 4 | |
Temp °C | 29 | 28 | 28 | 29 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 |
30 | 28 | 29 | 30 | 30 | 30 | 31 | 30 | 29 | 31 | 29 | 28 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 30 | 27 | |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 17 | WSW 15 | WSW 15 | W 7 | W 7 | W 7 | W 7 | W 7 | WSW 15 | WSW 15 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
 kJ | 26 | 26 | 29 | 44 | 45 | 150 | 150 | 149 | 127 | 153 | 44 | 43 | 154 | 163 | 195 | 173 | 178 | 156 | 160 | 137 | 144 | 125 | 177 | 203 |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 14 | SW 14 | — | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | — | — | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 |
| kJ | — | — | 21 | 8 | — | 45 | 47 | 47 | 47 | 45 | — | — | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 42 | 21 | 20 | 20 | 20 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | W 18 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | — | WSW 7 | W 7 | — | W 7 | W 7 | WSW 7 | WSW 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 212 | 202 | 176 | 176 | 173 | 57 | — | 62 | 59 | — | 154 | 154 | 63 | 63 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 744 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 797 |
Best forecast wave conditions in Phuket | ||||||||||||||||||||||||
Best forecast wave conditions in Thailand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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