Surf Forecasts:
Kho Phan-Ngan - Haad Rin surf forecast from 1 Sep 2026:
- Most powerful swell: Saturday 5 Sep, 10AM (local time) - 1ft (0.3m), 5s period, SSE swell with 6 kJ wave energy.
Best Forecast Surf Conditions for Kho Phan-Ngan - Haad Rin this week:
The most powerful waves expected at Kho Phan-Ngan - Haad Rin in the next 16 days are 0.3m 5s and forecast to arrive on Saturday (Sep 05) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Tuesday (Sep 08) at 4PM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Sat 5th Sep) | 1ft (0.3m) 5s |
Table - best surf conditions forecast for Kho Phan-Ngan - Haad Rin over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer for Koh Phan-Ngan.
Mate, I gotta be straight with you – this forecast is a real bummer. We’re looking at a solid 16-day window here, and the first week and a half is essentially a write-off. There’s nothing worth paddling out for from Wednesday the 2nd of September right through to about the 15th. That’s nearly two weeks of flat, weak conditions. The combined swell energy barely cracks double digits, mostly sitting around 1 to 6 (weak energy), so you’re not even getting a proper wobble on the surface. The wind is offshore most days, which would be a dream if there was any swell to clean up, but with waves barely hitting 0.3m and a short, weak period of 5 to 6 seconds, it’s just not surfable. For a spot that’s already inconsistent, this kind of dead run isn’t totally out of the ordinary, but it’s still a tough stretch.
Now, there is a tiny glimmer. On Wednesday the 16th of September, things try to pick up a bit. The morning shows a 0.3m swell from the SE with a 6-second period, and the combined energy bumps up to 7 (still weak). The wind is offshore from the WSW at 20 km/h, so conditions will be clean. It’s still tiny and weak – really just a knee-high dribble for absolute beginners on a foamie. Haad Rin will be the spot to check if you’re desperate, but don’t expect any real waves.
After that, it drops straight back to nothing on the 17th. That’s it. No standout sessions, no real swell on the horizon. The only positive is that the offshore winds have been persistent, so if a sneaky pulse shows up, it’ll be clean. But right now, leave the board in the car.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Thu afternoon. Warm (max 30°C on Wed afternoon, min 27°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 30°C on Sun afternoon, min 27°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SE 6 | ESE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 5 | SSE 4 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 6 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | off | off | off | off | off |
High Tide | 2:54PM0.98m | 3:07AM0.43m | 3:27PM1.10m | 4:09PM1.19m | 5:01PM1.26m | 5:59PM1.30m | 7:02PM1.31m | 8:04PM1.28m | |||||||||||||
Low Tide | 6:53AM0.47m | 00:17AM0.41m | 5:45AM0.41m | 2:59AM0.29m | 4:07AM0.18m | 5:03AM0.09m | 5:52AM0.05m | 6:34AM0.05m | |||||||||||||
 |  |  | |  |  | | | |  | | | | | | | | | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:28 | — | — | 6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — |
mm | — | 1 | 1 | — | 2 | — | — | 1 | 1 | — | 1 | — | — | 1 | 2 | — | — | 1 | — | — | — |
Temp °C | 29 | 30 | 28 | 28 | 30 | 28 | 28 | 30 | 28 | 28 | 29 | 28 | 28 | 30 | 28 | 28 | 30 | 28 | 29 | 30 | 28 |
Feels °C | 30 | 31 | 27 | 30 | 30 | 27 | 29 | 30 | 26 | 30 | 30 | 27 | 30 | 29 | 27 | 30 | 29 | 26 | 29 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 6 | ESE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | NW 4 | SSE 4 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
| kJ | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | SE 6 | — | — | SSE 5 | SE 6 | — | — | — | SE 5 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | — | — | 6 | 1 | — | — | — | 1 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 4 | NW 4 | WNW 4 | WNW 5 | NW 4 | WNW 4 | W 4 | WNW 3 | WNW 4 | SW 3 | NW 4 | WNW 5 | WSW 3 | WNW 3 | WNW 5 | W 4 | WNW 3 | W 4 | W 4 | WNW 5 | WNW 4 |
| kJ | 13 | 9 | 30 | 25 | 10 | 25 | 20 | 5 | 13 | 2 | 4 | 28 | 3 | 1 | 28 | 9 | 6 | 30 | 14 | 99 | 25 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 899 | 703 | 271 | 285 | 271 | 829 | 891 | 271 | 271 | 271 | 285 | 828 | 285 | 285 | 271 | 828 | 703 | 703 | 829 | 703 | 1036 |
Best forecast wave conditions in Gulf of Thailand | |||||||||||||||||||||
Best forecast wave conditions in Thailand | |||||||||||||||||||||
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Information about the Kho Phan-Ngan - Haad Rin Surf forecast
The above surf forecast table for Kho Phan-Ngan - Haad Rin provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kho Phan-Ngan - Haad Rin can be found by selecting the local surf guide option on the grey menu. Our Kho Phan-Ngan - Haad Rin 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 (Kho Phan-Ngan - Haad Rin) 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 Kho Phan-Ngan - Haad Rin 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.
Kho Phan-Ngan - Haad Rin is 22 km (14 miles) from the city of Ko Samui. If you plan a holiday in Gulf of Thailand, look for hotels and other accommodation in Ko Samui. Ko Samui has rooms for a wide range of budgets as well as car hire and transport links.
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