
Surf Forecasts:
Chinamans surf forecast from 5 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 9PM (local time) - 4.5ft (1.4m), 17s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 12 Aug, 3AM (local time) - 13ft (4.0m), 18s period, SW swell with 8,852 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 9PM (local time) - 4.5ft (1.4m), 17s 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 Wednesday (Aug 05) at 9PM. The primary swell is predicted to be 1.4m and 17s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Chinamans in the next 16 days are 4.0m 18s and forecast to arrive on Wednesday (Aug 12) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Tuesday (Aug 11) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 5th Aug) | 4.5ft (1.4m) 17s |
| Best Surf | 9PM (Wed 5th Aug) | 4.5ft (1.4m) 17s |
| Most Powerful | 3AM (Wed 12th Aug) | 13ft (4.0m) 18s |
Table - best surf conditions forecast for Chinamans over the next 16 days.
The Lowdown
Alright folks, Rusty here with a long-range look at what’s cooking for Chinamans.
Right off the bat, the first surf we’ve got to talk about is a deep-water groundswell event that starts kicking in on Wednesday afternoon, the 5th of August. The water temp is sitting at 59°, which is bang on average for this time of year, so no surprises there. The swell energy is already pumping hard with a reading of 1163 (moderate) and it's only going to ramp up from there.
Wednesday the 5th itself is a solid, clean option. We’re looking at 4ft of SW swell with a very long 18-second period, so that’s proper groundswell. The wind is light and offshore from the north, just a moderate breeze, keeping the surfaces clean. It’s a sweet window for experienced surfers, and while the crowd factor is listed as "sometimes," don't be surprised if a few other locals sniff out the same conditions.
Thursday the 6th turns ugly fast. The wind swings cross-on and the surf gets chopped out – a total write-off. Friday the 7th stays big and messy with some strong winds; the waves are there but the quality is shot.
The real standout, and I mean the one to circle on the calendar, is Monday morning, the 10th of August. This is the big one. We’ve got a massive 12ft SW groundswell running a 17-second period. The combined wave energy is a staggering 9854 (strong), which tells you just how much power is in the water. The wind is offshore from the northwest, keeping it glassy and clean. The catch? At over 8ft, this is strictly for experts. If you’re not comfortable in serious, powerful surf, sit this one out. This is the session for the crew who live for the big stuff.
The second half of the week from the 11th gets tricky. There’s plenty of size, but the wind goes onshore or cross-shore, making a mess of things. It’s not until Thursday the 13th afternoon and Friday the 14th that we see a return to form. Thursday the 13th afternoon has 12ft of SW swell with an 18-second period, and the wind turns light cross-off, and the energy is still massive at 7701. It’s clean and powerful – another proper day for the experienced crew. Friday the 14th afternoon drops slightly to 8ft but with a 19-second period and light offshore wind. The energy is still high at 5005, and conditions are exceptional.
Then into the second week, we get a run of good-looking days from Saturday the 15th of August through the following week. Saturday the 15th morning has 10ft of SW swell, low wind, and the combined energy is 5406. The real treat is Saturday afternoon when the wind goes glassy – dead calm, 10ft swell, and 4633 energy. That is as good as it gets for a reef break like Chinamans.
There are a few other notable days: Monday the 18th afternoon has 8ft of SW swell with an 18-second period and light cross-off wind, and then Wednesday the 19th afternoon is another big standout with 10ft of WSW groundswell and a moderate offshore wind, delivering 7292 energy.
Overall, this is a really good run for Chinamans. It’s all advanced-level stuff, but the windows of clean, powerful surf are frequent. The absolute best bet is Monday the 10th morning for the sheer power and size, and Saturday the 15th afternoon for the surreal glassy conditions. Keep your eyes on those dates.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Very mild (max 16°C on Fri afternoon, min 12°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the N by Sat morning). | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Sat night. Very mild (max 16°C on Sat afternoon, min 11°C on Sat night). Winds increasing (moderate winds from the NNW on Sat afternoon, near gales from the SW by Sun afternoon). | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | WSW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | WSW 12 | SW 12 | SW 19 |
Wave Graph | ||||||||||||||||||||
1019 | 865 | 803 | 1364 | 2350 | 2443 | 2300 | 1901 | 2035 | 1784 | 1273 | 2330 | 4018 | 7661 | 6358 | 4230 | 2620 | 2173 | 1568 | 8585 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross | cross | off | cross-off | off | off | cross | cross |
High Tide | 4:29PM0.65m | 5:59AM0.83m | 4:19PM0.55m | 6:55AM0.84m | 8:33AM0.83m | 11:06AM0.88m | 12:25PM0.97m | 2:55AM0.27m | 1:14PM1.05m | 2:11AM0.35m | ||||||||||
Low Tide | 10:51PM0.12m | 12:14PM0.44m | 11:00PM0.11m | 11:08PM0.10m | 11:05PM0.12m | 10:18PM0.14m | 9:24PM0.14m | 4:16AM0.27m | 9:11PM0.13m | |||||||||||
— | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | |
5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | |
mm | — | — | — | — | — | — | 1 | 1 | — | 2 | 10 | 4 | 3 | — | — | 3 | 1 | 4 | 4 | — |
Temp °C | 13 | 14 | 14 | 14 | 13 | 15 | 16 | 15 | 15 | 16 | 14 | 12 | 12 | 13 | 13 | 14 | 14 | 13 | 12 | 14 |
Feels °C | 8 | 12 | 11 | 11 | 12 | 9 | 11 | 9 | 8 | 12 | 7 | 4 | 1 | 4 | 7 | 8 | 6 | 3 | 3 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | N 5 | SW 22 | — | SW 17 | SW 16 | SW 16 | SW 12 | SW 22 | SW 19 |
1019 | 865 | 803 | 1364 | 2350 | 2443 | 2300 | 1901 | 2035 | 1784 | 1273 | 12 | 1178 | — | 3496 | 4230 | 2620 | 884 | 821 | 8585 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | NW 6 | WSW 4 | WSW 5 | — | — | — | WNW 7 | WNW 7 | — | — | N 5 | — | — | — | — | — | N 6 | N 5 | — |
144 | 26 | 11 | 13 | — | — | — | 62 | 71 | — | — | 12 | — | — | — | — | — | 26 | 13 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 5 | — |
— | — | 61 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | |
Wind waves Height (m) Direction Period (s) | N 4 | — | — | W 5 | — | N 4 | N 4 | N 5 | N 5 | N 5 | NNW 5 | WSW 16 | SW 16 | SW 18 | SW 17 | NNW 4 | NW 5 | WSW 12 | SW 12 | — |
6 | — | — | 11 | — | 17 | 12 | 60 | 49 | 60 | 56 | 2330 | 4018 | 7661 | 6358 | 10 | 98 | 2173 | 1568 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 32 | 7 | 0 | 81 | 81 | 81 | 81 | 81 | 480 | 472 | 540 | 968 | 738 | 540 | 540 | 726 | 726 | 540 |
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.











