Surf Forecasts:
Chinamans surf forecast from 19 Aug 2026:
- Best quality surf: Sunday 23 Aug, 3AM (local time) - 4.5ft (1.4m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 9PM (local time) - 8ft (2.5m), 16s period, SW swell with 3,039 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 3AM (local time) - 4.5ft (1.4m), 18s 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 3AM. The primary swell is predicted to be 1.4m and 18s period with a secondary swell of 1.6m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Chinamans in the next 16 days are 2.5m 16s and forecast to arrive on Friday (Aug 21) at 9PM. 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 Thursday (Aug 27) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 23rd Aug) | 4.5ft (1.4m) 18s |
| Best Surf | 3AM (Sun 23rd Aug) | 4.5ft (1.4m) 18s |
| Most Powerful | 9PM (Fri 21st Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Chinamans over the next 16 days.
The Lowdown
Alright, let’s get into it. This is a classic Chinamans reef setup, and we’ve got a solid run of swell headed our way, but it’s not all smooth sailing. The water temperature is sitting at 59°, which is dead average for this time of year, so no surprises there.
The action starts around Thursday morning, August 20th, with a solid 6ft southwest groundswell, but it’s got a cross-off wind holding it together. The combined energy is strong (2268), and the period is a very long 16 seconds, so there’s plenty of punch. Things get a bit lumpy in the afternoon as the wind swings cross-shore, but the swell ticks up to 7ft. Friday to Saturday morning, August 21st and 22nd, the swell holds steady around 7ft to 8ft, but the wind stays cross or cross-off, so it’s not glassy. The energy remains moderate to strong (2553 and 2637).
Now, Sunday, August 23rd, is where things get interesting. The morning brings a nice cross-off from the north-northeast, and the swell is a clean 7ft from the southwest with a 17-second period. The energy is strong (2414). The afternoon is a standout: an offshore wind from the north-northwest, swell at 6ft, and the energy is still solid (1809). For experienced surfers, this is the best window in the near term. The break is a reef, so the long period groundswell (17 seconds) will wrap in nicely, giving you clean, well-shaped waves. Crowds are sometimes an issue, but it’s worth it.
After Sunday, the swell drops off quickly. Monday morning, August 24th, sees a 4ft swell with light cross-off winds and weak energy (573). It’s clean but small. The rest of the week into early September is a mixed bag. A few decent windows pop up: Wednesday, August 26th, has a 4ft swell with a light offshore, and then Thursday, August 27th, pushes 6ft with a fresh offshore, but the swell is a bit shorter period (15 seconds). The energy is strong (2090) and it’s clean.
The real standout in the second week is looking like Friday, September 4th. The morning is clean with a 4ft southwest swell, but the afternoon is the one to watch: 6ft from the southwest, a long 18-second period, and light offshore winds. The combined energy is strong (2267). That’s a late-season gem for experienced surfers, though it’s a week and a half out, so keep an eye on it.
Overall, Chinamans is fairly consistent through this window, but the best surf is definitely from Sunday, August 23rd, and then again on Friday, September 4th. The period is long, so expect clean lines and a bit of a paddle between sets. The reef holds up well, especially with the southwest swell direction matching the optimum.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Thu morning, min 12°C on Sat night). Winds decreasing (fresh winds from the W on Thu morning, light winds from the S by Sat night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Sun morning, min 12°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | WSW 16 | WSW 16 | SW 15 | SW 14 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||||
1788 | 2206 | 2390 | 1580 | 2913 | 2963 | 2550 | 1907 | 1638 | 2414 | 1809 | 936 | 513 | 464 | 767 | 2325 | 1616 | 1033 | 600 | 386 | 374 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross-off | cross | cross | cross | cross-on | cross-off | off | cross-off | cross-off | cross | on | cross-on | cross | on | cross-off | off | cross-off |
High Tide | 3:52PM0.52m | 6:19AM0.74m | 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 | ||||||||||
Low Tide | 12:00PM0.43m | 10:32PM0.12m | 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 | ||||||||||
6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | |
— | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 |
Feels °C | 8 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 12 | 11 | 11 | 12 | 12 | 11 | 9 | 9 | 7 | 8 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | SW 15 | SW 14 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 |
1788 | 945 | 2390 | 1580 | 2913 | 2963 | 2550 | 1907 | 1638 | 2414 | 1809 | 936 | 513 | 464 | 767 | 2325 | 1616 | 1033 | 600 | 386 | 374 | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 20 | SW 18 | — | — | SW 24 | SW 21 | SW 19 | — | — | — | SW 20 | SW 19 | SW 18 | — | — | — | SW 18 | SW 17 | SW 16 |
— | — | 244 | 973 | — | — | 87 | 368 | 621 | — | — | — | 60 | 125 | 437 | — | — | — | 79 | 135 | 203 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 12 | — | SW 23 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | — | 21 | |
Wind waves Height (m) Direction Period (s) | W 9 | WSW 16 | — | — | — | — | — | — | — | — | — | — | WNW 3 | W 3 | — | — | — | — | — | NNW 3 | NNW 3 |
480 | 2206 | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | 3 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 74 | 540 | 46 | 11 | 138 | 11 | 7 | 7 | 3 | 0 | 0 | 0 | 0 | 11 | 19 | 32 | 46 | 7 | 0 | 0 | 11 |
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.











