Surf Forecasts:
Chinamans surf forecast from 20 Aug 2026:
- Best quality surf: Sunday 23 Aug, 12AM (local time) - 7ft (2.2m), 15s period, SW swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 6PM (local time) - 8ft (2.4m), 18s period, SW swell with 3,603 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 12AM (local time) - 7ft (2.2m), 15s period with SW swell.
Best Forecast Surf Conditions for Chinamans this week:
The surf forecast for Chinamans over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 12AM. The primary swell is predicted to be 2.2m and 15s period with a secondary swell of 0.9m and 20s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Chinamans in the next 16 days are 2.4m 18s and forecast to arrive on Thursday (Aug 27) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Friday (Aug 28) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 23rd Aug) | 7ft (2.2m) 15s |
| Best Surf | 12AM (Sun 23rd Aug) | 7ft (2.2m) 15s |
| Most Powerful | 6PM (Thu 27th Aug) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for Chinamans over the next 16 days.
The Lowdown
Righto, gather 'round. Rusty here. Let's have a look at what's cookin' for the next couple of weeks.
Alright, we’ve got a solid run of swell from the southwest on the way, but it's gonna take a bit of patience to get the good ones. The energy is proper strong, like 9 to 10 feet (moderate to strong wave energy) for the first few days, but the wind is a bit of a mixed bag early on.
Friday, August 21st kicks it off at Chinamans, but it's a bit of a tease. There's a solid 7ft to 8ft SW groundswell rolling in, with a period of 14-17 seconds, which is a proper long-period groundswell. This reef break is exposed to the SW and loves that direction, so it's handling the size. But the morning is a bit messy with a cross-shore wind, and the afternoon gets a cleaner look with a cross-offshore breeze, but the call is still a bit marginal. The water temp is 59°, which is pretty normal for this time of year.
Saturday, August 22nd the swell hangs in at 8ft, but the wind stays cross-shore all day. It's a bit frustrating, really. The potential is there, but the surface is just a little lumpy for a top-tier session.
Now, Sunday, August 23rd is where we start to get a little buzz. The swell drops a touch to 7ft in the morning and 6ft in the afternoon, but the wind swings around to a light NNE breeze, giving us a nice cross-offshore flow. That's your ticket to clean, lined-up waves. The energy is still solid (9 feet), and the conditions are being called excellent for experienced surfers. This is a standout for the first week. But remember, Chinamans can get a crowd sometimes, so get in early.
Monday, August 24th the swell drops off a cliff to 4ft, and the energy plummets to 2 feet. Not a lot of push. The wind is clean, but the waves just aren't there.
Tuesday, August 25th is a write-off. The swell jumps back up to 7ft, but a strong SSW wind smashes it onshore, making a lumpy mess. Don't bother.
Wednesday, August 26th we see a drop-off in size and energy, and the wind is a bit all over the place. Not your day.
Thursday, August 27th is another interesting one. The morning is small, 3ft, but it's a very long period groundswell at 21 seconds with a clean offshore wind. That's a beautiful, clean line-up, but the swell is tiny. The afternoon is a different story – the swell jumps to 7ft with a 19-second period, and the energy is massive at 11 feet (strong). The wind stays clean, but the marginal call suggests it might be a bit tricky. Still, a very long period swell like that on a reef can be magic.
Friday, August 28th the swell is still solid at 7ft, but a strong WNW wind makes it a bit of a battle. The afternoon gets a 28 mph wind, which is just too much for a good paddle.
The first week of September is where the real promise lies.
Monday, September 1st is a standout. Solid 7ft SW groundswell with a 16-second period, and we get a proper offshore wind from the NNW. That's the recipe for perfection at Chinamans. The morning is a bit brisk with a 16 mph offshore, but it's clean and powerful. The afternoon is even better with a light offshore breeze. This is your best bet for a serious session.
Tuesday, September 2nd keeps the good times rolling, with a 5ft to 5ft SW swell and a clean offshore wind from the north. Excellent conditions for experienced surfers.
After that, the swell fades a bit, but there's a late pulse on Saturday, September 5th with a 7ft, 17-second SW groundswell and a strong offshore wind. The energy is 9 feet (strong), but the wind is fresh, so it's a bit more of a challenge. A promising but less certain prospect for the end of the run.
Overall, the best of the bunch is Sunday the 23rd of August and Monday the 1st of September. For the first week, Sunday is the cleanest. For the second week, Monday the 1st is the one to circle on the calendar. Keep your eyes peeled, the good ones are coming.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Sun night, min 12°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Very mild (max 16°C on Mon morning, min 10°C on Wed night). Winds decreasing (fresh winds from the SSW on Tue morning, calm by Wed morning). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 17 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 21 | SW 19 | SW 17 |
Wave Graph | |||||||||||||||||||||
1580 | 2913 | 2963 | 2404 | 2169 | 2010 | 2758 | 1787 | 936 | 581 | 416 | 812 | 2061 | 1972 | 1238 | 827 | 529 | 272 | 599 | 3333 | 3005 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross | glassy | cross-off | cross-off | cross | cross-off | cross-off | on | cross-on | cross-on | cross-on | on | cross | cross | cross-off | cross-off | off |
High Tide | 1:59PM0.52m | 7:29AM0.68m | 12:20PM0.72m | 12:56PM0.79m | 3:38AM0.37m | 1:22PM0.86m | 2:36AM0.40m | 1:44PM0.90m | 2:26AM0.46m | 2:05PM0.93m | 2:32AM0.53m | ||||||||||
Low Tide | 1:14PM0.52m | 10:26PM0.13m | 10:07PM0.15m | 9:39PM0.15m | 9:15PM0.15m | 5:30AM0.36m | 9:03PM0.14m | 6:37AM0.29m | 8:59PM0.13m | 7:15AM0.22m | 9:00PM0.11m | ||||||||||
6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | |
— | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | 1 |
Temp °C | 13 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 16 | 14 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 15 |
Feels °C | 9 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 13 | 14 | 13 | 9 | 8 | 8 | 7 | 9 | 10 | 9 | 7 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 17 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 19 | SW 17 |
1580 | 2913 | 2963 | 2404 | 2169 | 2010 | 2758 | 1787 | 936 | 581 | 416 | 812 | 2061 | 1972 | 1238 | 827 | 529 | 272 | 590 | 3333 | 3005 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | — | — | SW 24 | SW 21 | SW 20 | — | — | — | SSW 20 | SW 18 | SW 13 | — | — | — | SW 18 | SW 16 | SW 15 | SW 21 | — | — |
973 | — | — | 87 | 368 | 552 | — | — | — | 38 | 121 | 357 | — | — | — | 152 | 165 | 215 | 599 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | N 4 | — | — | — | — | — | — | SW 24 | — | — | — |
— | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | 22 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NNE 4 | ENE 3 | E 3 | SE 4 | — | SE 4 | — | — | — | N 4 | N 4 | NNE 5 |
— | — | — | — | — | — | — | — | — | 5 | 1 | 6 | 5 | — | 4 | — | — | — | 20 | 26 | 42 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 160 | 11 | 7 | 7 | 0 | 0 | 0 | 3 | 3 | 0 | 32 | 427 | 589 | 32 | 7 | 74 | 3 | 81 | 81 | 163 |
Best forecast wave conditions in Yorke Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Chinamans Surf forecast
The above surf forecast table for Chinamans provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Chinamans can be found by selecting the local surf guide option on the grey menu. Our Chinamans 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 (Chinamans) 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 Chinamans 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.
Are you planning a holiday in Yorke Peninsula? If you are looking for accommodation near Chinamans, camping, hotels and holiday cottages in Yorke Peninsula, consider staying in Kingscote which is 80 km (50 miles) away.











