Surf Forecasts:
Watermans surf forecast from 31 Aug 2026:
- Best quality surf: Sunday 6 Sep, 5AM (local time) - 11ft (3.5m), 13s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 2AM (local time) - 10ft (3.0m), 17s period, WSW swell with 5,274 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 2AM (local time) - 7ft (2.1m), 13s 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 (Sep 03) at 2AM. The primary swell is predicted to be 2.1m and 13s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Watermans in the next 16 days are 3.0m 17s and forecast to arrive on Monday (Sep 07) at 2AM. 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 3rd Sep) | 7ft (2.1m) 13s |
| Best Surf | 5AM (Sun 6th Sep) | 11ft (3.5m) 13s |
| Most Powerful | 2AM (Mon 7th Sep) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Watermans over the next 16 days.
The Lowdown
Alright mate, Rusty here. Let’s have a look at what’s coming our way.
Watermans (a reef setup) is the only break on the radar for the next 16 days. The water temperature is running about average for this time of year, so nothing unusual there.
The next week and a half is pretty average, to be honest. We’ve got a long period groundswell from the WSW, but the wind is a bit of a letdown for most of it. Monday the 31st of August kicks off with a cross-on breeze and a 7ft swell, but it’s choppy and not really worth a paddle. The following days stay marginal, with similar sizes and onshore or cross-onshore winds, so the surf will be bumpy and hard to enjoy. The swell energy is moderate (3109 on Monday morning) but the wind just makes a mess of it.
Now, there’s a gap of poor conditions until we get to the real standout. Tuesday the 8th of September – that’s your day. The morning is looking glassy with a slight air, clean as can be, and a solid 12ft WSW swell packing very long-period energy (18 seconds). The combined swell energy is massive (7020). This is a proper groundswell, and at a reef break like Watermans, the long period will wrap in beautifully. The water is about average temperature for this time of year. It’s big though – over 8ft – so this is for experts only. Still, the best surf on offer, no question.
After that, the swell drops off a bit but stays around 8ft to 8ft with cross-offshore winds at times, like Wednesday the 9th morning, which might clean up a little. But the real magic is that Tuesday morning.
If you’re looking further out, Saturday the 12th of September morning is another standout – glassy again, with a huge 15ft WSW swell and very long period (16 seconds). The combined energy is through the roof (9403). That’s monster groundswell at a reef, perfect for the experts. The following days gradually drop in size and get a bit onshore again, but still worth a look if you’re keen.
So, in short: the first week is a write-off, but mark your calendar for Tuesday the 8th of September morning and Saturday the 12th of September morning – those are your best shots. Glassy, clean, and proper heavy groundswell at Watermans.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 18°C on Mon afternoon, min 13°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 17°C on Thu afternoon, min 14°C on Thu morning). Winds increasing (light winds from the NNE on Thu morning, near gales from the SW by Sat afternoon). | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | WSW 16 | WSW 16 | WSW 14 | WSW 9 | WSW 13 | WSW 14 | WSW 14 | WSW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2564 | 2251 | 1750 | 2023 | 1557 | 1283 | 1516 | 1471 | 1520 | 2243 | 2305 | 2412 | 2480 | 5151 | 4268 | 1748 | 2871 | 4679 | 3820 | 3609 | 5274 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross | cross | cross-on | cross-on | on | glassy | cross-on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross | on | on | cross-on |
High Tide | 10:38AM0.40m | 11:25PM0.53m | 10:42AM0.32m | 11:49PM0.58m | 9:34AM0.25m | 00:23AM0.61m | 1:17AM0.62m | 3:12AM0.63m | 5:01AM0.64m | ||||||||||||
Low Tide | 4:43PM0.23m | 6:23AM0.25m | 4:29PM0.23m | 8:06AM0.25m | 2:59PM0.21m | 1:51PM0.14m | 2:10PM0.07m | 2:40PM0.02m | 3:11PM-0.00m | ||||||||||||
 |  |  | |  | | | |  |  |  |  | | |  | | | | | | | |
 | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — |
mm | — | — | — | — | — | — | — | — | 3 | 1 | 1 | 2 | — | — | — | 1 | 4 | — | — | — | — |
Temp °C | 17 | 18 | 18 | 15 | 15 | 15 | 16 | 16 | 16 | 15 | 17 | 17 | 16 | 16 | 15 | 17 | 16 | 15 | 14 | 15 | 16 |
Feels °C | 16 | 14 | 15 | 11 | 11 | 12 | 12 | 13 | 14 | 13 | 12 | 11 | 11 | 12 | 12 | 9 | 6 | 5 | 11 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 15 | — | WSW 14 | WSW 16 | WSW 16 | WSW 14 | — | WSW 13 | WSW 14 | WSW 14 | WSW 17 |
| kJ | 2564 | 2251 | 1750 | 2023 | 1557 | 1283 | 1516 | 1471 | 1520 | 2243 | 2305 | — | 2480 | 5151 | 4268 | 1748 | — | 4679 | 3820 | 3609 | 5274 |
Swell 2 Height (m) Direction Period (s) | WSW 14 | — | SW 6 | WSW 8 | WSW 10 | — | — | — | — | — | — | — | SW 18 | — | — | — | — | — | WSW 22 | — | WSW 18 |
| kJ | 545 | — | 130 | 150 | 214 | — | — | — | — | — | — | — | 157 | — | — | — | — | — | 46 | — | 1118 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 4 | — | — | — | SW 3 | — | — | — | — | — | WSW 14 | — | — | — | W 6 | WSW 9 | — | — | — | — |
| kJ | — | 9 | — | — | — | 2 | — | — | — | — | — | 2412 | — | — | — | 263 | 2871 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 412 | 412 | 163 | 18 | 82 | 163 | 236 | 163 | 0 | 285 | 443 | 1625 | 163 | 203 | 296 | 2431 | 2159 | 163 | 296 | 412 | 296 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Watermans surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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