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Nai Harn Beach surfForecast / Phuket / Thailand
12 Day Weather and Surf, issued 12 pm Friday 11 Jul 2025 +07
Best Forecast Surf Conditions for Nai Harn Beach this week:
The surf forecast for Nai Harn Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 15) at 7AM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.2m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nai Harn Beach in the next 12 days are 2.1m 8s and forecast to arrive on Tuesday (Jul 15) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Tuesday (Jul 15) at 1AM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 15th Jul) | 4.5ft (1.4m) 8s |
| Best Surf | 7AM (Tue 15th Jul) | 4.5ft (1.4m) 8s |
| Most Powerful | 4PM (Tue 15th Jul) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Nai Harn Beach over the next 12 days.
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 9 | 7 | 8 | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 7 | 8 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 255 | 338 | 268 | 247 | 261 | 277 | 283 | 194 | 148 | 153 | 152 | 175 | 292 | 507 | 494 | 474 | 375 | 202 | 160 | 149 | 105 | 88 | 56 | 74 | 85 | 136 | 167 | 388 | 476 | 916 | 963 | 984 | 1104 | 1153 | 1319 | 1389 |
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 | on | on | cross- on | on | cross- on | glass | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | 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 / height (m) | 10:51AM 1.90 | 11:19PM 1.55 | 11:27AM 1.95 | 11:56PM 1.60 | 12:02PM 1.97 | 12:33AM 1.64 | 12:38PM 1.95 | 1:12AM 1.65 | 1:15PM 1.88 | 1:54AM 1.65 | 1:56PM 1.77 | 2:40AM 1.63 | 2:41PM 1.63 | 3:33AM 1.60 | 3:37PM 1.47 | 4:37AM 1.56 | 4:50PM 1.33 | 5:55AM 1.56 | 6:25PM 1.26 | 7:16AM 1.61 | 7:57PM 1.29 | 8:26AM 1.71 | 9:07PM 1.38 | |||||||||||||
Low Tide / height (m) | 5:20PM 0.19 | 5:08AM 0.28 | 5:55PM 0.13 | 5:45AM 0.26 | 6:29PM 0.09 | 6:23AM 0.27 | 7:05PM 0.09 | 7:04AM 0.30 | 7:42PM 0.11 | 7:48AM 0.37 | 8:21PM 0.17 | 8:39AM 0.46 | 9:06PM 0.27 | 9:40AM 0.55 | 9:59PM 0.38 | 10:58AM 0.61 | 11:07PM 0.48 | 12:32PM 0.61 | 12:29AM 0.53 | 2:00PM 0.51 | 1:49AM 0.51 | 3:06PM 0.38 | 2:55AM 0.44 | |||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||||||
| Sunrise | 6:15 | - | - | 6:15 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - |
| Sunset | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - |
 | |  | | | | | | | |  |  | |  | | |  |  | | | | | |  | | | | | | | | | | | | | |
Rain (mm) | 4 | 5 | 4 | 3 | 4 | 8 | 3 | 2 | 3 | 1 | - | 2 | 2 | - | 18 | 1 | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | 1 | 1 | 2 | 4 | - | - | - |
| Temp. °C | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 28 |
| Feels °C (?) | 27 | 26 | 28 | 28 | 27 | 28 | 30 | 31 | 32 | 31 | 32 | 32 | 32 | 32 | 29 | 27 | 28 | 28 | 33 | 33 | 32 | 32 | 32 | 30 | 31 | 30 | 28 | 30 | 23 | 26 | 25 | 26 | 25 | 28 | 28 | 27 |
Short Range Forecast: Heavy rain (total 36mm), heaviest during Fri morning. Warm (max 29°C on Sun morning, min 28°C on Fri morning). Winds decreasing (fresh winds from the W on Fri afternoon, light winds from the SW by Sun afternoon). | Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Tue night. Warm (max 29°C on Mon morning, min 26°C on Tue night). Winds increasing (calm on Tue morning, fresh winds from the WSW by Wed morning). | Days 6-9 Weather Summary Some drizzle, heaviest during Sat night. Warm (max 29°C on Thu morning, min 28°C on Thu morning). Winds increasing (calm on Thu afternoon, fresh winds from the W by Sat night). | Long Range Forecast: Light rain (total 9mm), mostly falling on Mon afternoon. Warm (max 29°C on Sun morning, min 28°C on Sun afternoon). Mainly strong winds. | |||||||||||||||||||||||||||||||||
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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.
Information about the Nai Harn Beach Surf forecast
The above surf forecast table for Nai Harn Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Nai Harn Beach can be found by selecting the local surf guide option on the grey menu. Our Nai Harn Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nai Harn Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Nai Harn Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Nai Harn Beach is 8 km (5 miles) from the city of Ban Chalong. If you plan a holiday in Phuket, look for hotels and other accommodation in Ban Chalong. Ban Chalong has rooms for a wide range of budgets as well as car hire and transport links.
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