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Nai Harn Beach surfForecast / Phuket / Thailand
12 Day Weather and Surf, issued 6 am Saturday 19 Jul 2025 +07
Best Forecast Surf Conditions for Nai Harn Beach this week:
The most powerful waves expected at Nai Harn Beach in the next 12 days are 3.0m 9s and forecast to arrive on Wednesday (Jul 23) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 10s period and expected on Friday (Jul 25) at 10PM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Wed 23rd Jul) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Nai Harn Beach over the next 12 days.
Short Range Forecast Moderate rain (total 18mm), heaviest on Sun morning. Warm (max 29°C on Sat morning, min 28°C on Sat afternoon). Winds increasing (light winds from the SW on Sat morning, fresh winds from the WSW by Mon night). | Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Thu night. Warm (max 29°C on Tue morning, min 28°C on Wed night). Mainly strong winds. | ||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||||
| 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) (?) | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 10 | 10 | 10 | 8 | 10 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 287 | 270 | 366 | 524 | 492 | 680 | 1069 | 725 | 681 | 950 | 971 | 1291 | 1187 | 1113 | 1085 | 1269 | 1035 | 949 | 809 | 913 | 0 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | on | on | on | 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 |
High Tide / height (m) | 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 | 9:22AM 1.82 | 10:00PM 1.48 | 10:10AM 1.92 | 10:44PM 1.57 | 10:51AM 1.98 | 11:24PM 1.63 | ||||||||
Low Tide / height (m) | 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 | 3:58PM 0.25 | 3:48AM 0.35 | 4:42PM 0.15 | 4:33AM 0.28 | 5:20PM 0.09 | ||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||||
| Sunrise | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - |
| Sunset | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - | - | 6:47 | - |
 | |  | | | |  | |  | | | | |  | | |  | | | | | |
Rain (mm) | 1 | 3 | 6 | 5 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | 6 | - | - | - |
| Temp. °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 |
| Feels °C (?) | 31 | 32 | 29 | 29 | 29 | 31 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 27 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Phuket
The wind is still cross-on at Nai Harn Beach (light winds from the W at Phuket 16 km from Nai Harn Beach). 0.6m 7s swell from the WSW with a 0.2m 2s local chop from the SW. Swells combining to make to make bigger set waves.
16 km away, 2 h 20 min ago
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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