Surf Forecasts:
Watermans surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 16s period, WSW swell with offshore winds.
- Most powerful swell: Wednesday 26 Aug, 8PM (local time) - 11ft (3.5m), 17s period, WSW swell with 7,415 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 16s period with WSW swell.
Best Forecast Surf Conditions for Watermans this week:
The surf forecast for Watermans over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 2AM. The primary swell is predicted to be 3.0m and 16s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Watermans in the next 16 days are 3.5m 17s and forecast to arrive on Wednesday (Aug 26) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 20th Aug) | 10ft (3.0m) 16s |
| Best Surf | 2AM (Thu 20th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 8PM (Wed 26th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Watermans over the next 16 days.
The Lowdown
G’day, it’s Rusty here. We’ve got a solid stretch of groundswell lining up for Watermans over the next couple of weeks, but it’s not all clean sailing—there are some proper windows if you pick your moments. Water’s sitting at 64°, which is a touch colder than usual for this time of year, so you might want the hood or at least a nice thick wettie.
The first standout hits on Thursday morning, the 20th of August. We’ve got 10ft of WSW groundswell at 16 seconds, and a light SE breeze has the place glassy. That’s about as good as it gets around here—solid, powerful lines with hardly a ripple on them. Moderate energy too, with the combined swell energy reading 4242. This one’s for the crew who know what they’re doing—at this size, beginners should stay on the sand.
Friday morning, the 21st, is another cracker: 8ft WSW at 15 seconds, light offshore E wind, clean as a whistle. It’s a bit down in size from Thursday but still meaty, and the offshore wind will have the faces looking like a mirror. Energy’s still pushing 2535, which is a decent punch for the wave count.
The weekend gets messier. Saturday morning has some size—7ft at 17 seconds—and a light cross-offshore N wind keeps it tidy, so that’s worth a paddle if you’ve got the patience. But by Saturday afternoon the wind swings SSW at 25 km/h and it chops up quick. Sunday’s a write-off for quality—cross-shore winds and dropping swell make it a scrappy affair.
Monday the 24th brings back some hope: 7ft WSW at 14 seconds, with a light E offshore in the morning. Clean, still decent energy (1538), and a much easier paddle than Thursday. Good all-rounder for the experienced punter.
Then we hit a lull. Tuesday the 25th drops to 4ft and the energy fades to double figures (474). Wednesday the 26th is the big one—but it’s a mess. Swell jumps back up to 10–12ft with energy readings of 5768 and 6284, but the wind is cross-onshore and choppy as all hell. That’s a lot of water moving with no shape on it. If you’re not a masochist, give it a miss. Honestly, the setup around then looks more interesting for the kite crew than the paddle crew.
Thursday the 27th still has some size (8ft, 16s) but the S wind at 25 km/h makes it lumpy. By the weekend, the swell backs right off—Friday the 28th is just 4ft at 13 seconds, and Saturday the 29th drops to 2ft but with a 22-second period. That’s some long-interval swell, but there’s just not enough push to make Watermans work. Leave it be.
The second week kicks off with a resurgent WSW groundswell on Sunday the 30th—7–8ft at 18 seconds. Winds are light but onshore/cross-onshore, so it’ll be bumpy, though the energy’s substantial (3237–3465). Monday the 31st morning looks cleaner: 7ft at 17 seconds with a light NNE cross-offshore wind, and that’s your pick of the second week. Still solid size, clean lines, and the energy’s at 2507. Tuesday the 1st of September holds similar size but the wind gets questionable.
Wednesday the 2nd morning is another clean window—7ft at 13 seconds with a light E offshore, making for some nice, rippable walls. Thursday the 3rd sees the swell spike back up to 10ft at 16 seconds, but the wind is cross-shore and light, so it could be a bit lumpy—though for the chargers among you, that might be the one to watch.
To sum it up: Thursday the 20th and Friday the 21st are your two true standouts—big, clean, and powerful. Monday the 31st is the long-range promise, but don’t book the week around it just yet. Everything else is either too small, too messy, or just plain average for this spot.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 12°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Sat night, min 9°C on Mon morning). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 15 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | SW 13 | SW 16 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 15 | WSW 14 |
Wave Graph | |||||||||||||||||||
5140 | 4242 | 3253 | 3076 | 2513 | 2243 | 2015 | 2522 | 1699 | 947 | 752 | 1011 | 3079 | 1906 | 1349 | 809 | 359 | 693 | 929 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross | cross-off | off | cross | off | cross | cross | cross | cross | cross | cross-off | off | cross-on | cross-off | cross | cross-on | on |
High Tide | 1:48AM0.56m | 3:23AM0.56m | 4:57AM0.57m | 6:04AM0.59m | 6:56AM0.61m | 7:38AM0.63m | |||||||||||||
Low Tide | 3:17PM0.13m | 3:28PM0.10m | 3:45PM0.09m | 4:02PM0.08m | 4:17PM0.08m | 4:27PM0.08m | |||||||||||||
— | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | |
5:52 | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 17 | 16 | 17 | 20 | 18 | 19 | 18 | 16 | 15 | 16 | 16 | 14 | 16 | 14 | 16 | 16 | 16 |
Feels °C | 16 | 15 | 14 | 13 | 14 | 18 | 15 | 18 | 14 | 12 | 11 | 11 | 12 | 12 | 13 | 11 | 13 | 12 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 15 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | SW 13 | SW 16 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 15 | WSW 14 |
5140 | 4242 | 3253 | 3076 | 2513 | 2243 | 2015 | 2522 | 1699 | 947 | 752 | 1011 | 3079 | 1906 | 1349 | 809 | 359 | 693 | 929 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 24 | WSW 22 | WSW 19 | — | — | WSW 20 | WSW 18 | WSW 18 | — | — | — | — | WSW 16 | WSW 15 | WSW 22 |
— | — | — | — | 22 | 95 | 650 | — | — | 39 | 251 | 443 | — | — | — | — | 102 | 249 | 158 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 4 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSW 4 | SSW 5 | SSW 5 | SSW 4 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 13 | 70 | 38 | 20 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 82 | 0 | 0 | 163 | 0 | 4 | 203 | 163 | 163 | 163 | 0 | 0 | 163 | 0 | 4 | 384 | 285 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Watermans Surf forecast
The above surf forecast table for Watermans provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Watermans can be found by selecting the local surf guide option on the grey menu. Our Watermans 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 (Watermans) 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 Watermans 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 Perth City Coast? If you are looking for accommodation near Watermans, camping, hotels and holiday cottages in Perth City Coast, consider staying in Perth which is 17 km (11 miles) away. Other places in and around Perth City Coast where you can find information about places to rent, and car hire include Fremantle which is 25 km (16 miles) away, Canning Vale, Gosnells and Kwinana.











