Surf Forecasts:
Kata Beach surf forecast from 17 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 10AM (local time) - 4.5ft (1.4m), 6s period, W swell with 130 kJ wave energy.
Best Forecast Surf Conditions for Kata Beach this week:
The most powerful waves expected at Kata Beach in the next 16 days are 1.4m 6s and forecast to arrive on Wednesday (Aug 19) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Thursday (Aug 20) at 7AM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Wed 19th Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Kata Beach over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve been staring at the charts for Kata Beach here on Phuket for the next couple of weeks. Honestly, it’s one of those quiet, flat spells where the ocean’s just not cooperating for paddle surfing. We’re looking at a long, dry run with no real surf to get excited about.
Kata Beach is an inconsistent, exposed beach break, and the whole 16-day window is basically a washout. The first hint of anything at all is on Wednesday morning, August 19th, when a weak, short-period 5ft swell rolls in from the west, but it’s running at just 6 seconds – that’s junk. It’s riding a stiff, cross-onshore wind at 19 mph, making it lumpy and blown-out. The wave energy is only moderate (214), but it’s all chop and no shape. The water temp is sitting about average for this time of year, so nothing weird there.
After that brief, messy pulse, it’s back to square one for days. The swell vanishes again, and for the rest of August and into the first few days of September, we’re stuck with barely a ripple – swell heights hovering around 0.0ft to 1ft at best. The wind just won’t let up, hammering in from the west and west-southwest at 16 to 25 mph, mostly cross-onshore. Every day reads the same: poor surf conditions.
There’s a tiny blip on August 29th Saturday afternoon with a 0.7ft, 20-second swell from the west-southwest, but it’s carrying bugger-all energy (76) and coming straight into that cross-onshore breeze. Not worth paddling out for.
Mate, with that persistent breeze and the constant chop, this setup looks way more interesting for kite surfing than paddle surfing. It’s a blank run, but that’s pretty normal for this spot in this season. Don’t hold your breath – forecasts can change, but right now, there’s nothing on the table.
Stay tuned, Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Mon night. Warm (max 29°C on Tue morning, min 28°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sun afternoon. Warm (max 28°C on Thu night, min 28°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | SW 14 | WSW 21 | WSW 22 | W 6 | WSW 20 | WSW 19 | WSW 18 | W 8 | WSW 18 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | SW 15 | W 7 | W 7 | W 7 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 45 | 45 | 130 | 75 | 72 | 64 | 0 | 60 | 29 | 54 | 26 | 25 | 25 | 24 | 23 | 9 | 0 | 0 | 0 | 0 |
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 | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:18PM1.80m | 1:45AM1.85m | 1:48PM1.61m | 2:19AM1.70m | 2:22PM1.41m | 3:05AM1.55m | 3:15PM1.23m | 4:36AM1.43m | 6:04PM1.14m | 6:56AM1.47m | 8:06PM1.27m | 8:08AM1.62m | 8:49PM1.44m | ||||||||
Low Tide | 7:19AM0.41m | 7:26PM0.36m | 7:54AM0.57m | 7:53PM0.53m | 8:35AM0.73m | 8:25PM0.71m | 9:39AM0.89m | 9:15PM0.87m | 12:12PM0.95m | 11:40PM0.96m | 2:05PM0.81m | 1:38AM0.86m | 2:48PM0.64m | 2:31AM0.69m | |||||||
 |  |  | |  |  | | | |  | | | | | | | |  | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — |
 | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — | — | 6:38 | — | — | 6:38 | — |
mm | 2 | — | 3 | — | — | — | 3 | 1 | — | — | 1 | — | 1 | — | 1 | 1 | 3 | 4 | 3 | 3 | 3 |
Temp °C | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 30 | 29 | 30 | 28 | 28 | 28 | 28 | 27 | 29 | 28 | 29 | 31 | 30 | 30 | 30 | 28 | 29 | 30 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 14 | WSW 21 | W 8 | WSW 20 | WSW 20 | WSW 19 | WSW 18 | WSW 18 | WSW 18 | WSW 17 | WSW 17 | WSW 16 | W 7 | W 8 | WSW 16 | WSW 15 | SW 15 | W 15 | — | — | W 18 |
| kJ | 8 | 45 | 12 | 77 | 75 | 72 | 64 | 106 | 60 | 29 | 54 | 26 | 210 | 187 | 24 | 23 | 9 | 4 | — | — | 6 |
Swell 2 Height (m) Direction Period (s) | W 23 | W 8 | WSW 22 | SW 13 | W 13 | — | — | — | — | — | WSW 17 | — | WSW 16 | WSW 16 | — | — | — | — | — | — | — |
| kJ | 10 | 1 | 45 | 7 | 3 | — | — | — | — | — | 27 | — | 25 | 25 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | SW 14 | W 13 | W 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 8 | 4 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 7 | W 6 | W 6 | W 6 | W 7 | W 7 | W 8 | W 8 | W 7 | W 7 | W 7 | — | — | W 8 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 |
| kJ | 113 | 86 | 60 | 130 | 175 | 233 | 378 | 358 | 299 | 349 | 276 | 210 | — | — | 164 | 206 | 254 | 203 | 274 | 340 | 362 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 640 | 641 | 640 | 640 | 640 | 19 | 640 | 19 | 1 | 19 | 1 | 1 | 19 | 1 | 641 | 19 | 641 | 1 |
Best forecast wave conditions in Phuket | |||||||||||||||||||||
Best forecast wave conditions in Thailand | |||||||||||||||||||||
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Information about the Kata Beach Surf forecast
The above surf forecast table for Kata Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kata Beach can be found by selecting the local surf guide option on the grey menu. Our Kata 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 (Kata 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 Kata 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.
Kata Beach is 5 km (3 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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