Surf Forecasts:
Watermans surf forecast from 24 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 5PM (local time) - 11ft (3.5m), 18s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 11ft (3.5m), 18s period, WSW swell with 8,697 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 5PM (local time) - 11ft (3.5m), 18s 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 Wednesday (Aug 26) at 5PM. The primary swell is predicted to be 3.5m and 18s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Watermans in the next 16 days are 3.5m 18s and forecast to arrive on Wednesday (Aug 26) at 2PM. 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 Thursday (Aug 27) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 26th Aug) | 11ft (3.5m) 18s |
| Best Surf | 5PM (Wed 26th Aug) | 11ft (3.5m) 18s |
| Most Powerful | 2PM (Wed 26th Aug) | 11ft (3.5m) 18s |
Table - best surf conditions forecast for Watermans over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for Watermans.
To be straight with you, the start of this forecast is a tough one. We've got a solid swell building, but the wind is a real bastard for the next few days, making it messy. The real story is a massive pulse of long-period groundswell that rolls in around Wednesday the 26th, but it's going to be a battle to find a clean wave. The water temp is pretty much what you'd expect for this time of year, so no surprises there.
We kick off on Tuesday the 25th with a 4ft to 5ft WSW swell, but it's got a 16 mph cross-on wind from the NNW, so it's choppy and poor. The combined energy is moderate (776 to 1083), but it’s not worth the hassle.
Wednesday the 26th is where it gets interesting, but also dangerous. The swell jumps to 10ft on the morning, with a massive 16-second period and combined energy hitting 6099. That's a strong, powerful groundswell. The morning is still blown out by a 16 mph cross-on wind, but the afternoon sees the wind drop to a glassy 3 mph onshore. At 12ft with an 18-second period and 8371 energy, this is a heavy, powerful wave. Only for experts, and even then, it's a beast. This size of swell at a reef break like Watermans is serious business.
Thursday the 27th sees the swell staying solid at 10ft to 12ft, but the wind swings to a strong 19 mph cross-shore from the S, creating a lumpy, cross-chop. Not great.
Friday the 28th is a bit of a letdown. The swell drops to 5ft to 6ft, and the wind goes cross-offshore from the SSE at 9 to 12 mph. The conditions are clean, but the energy is weak (779 to 1103). It’s a small, clean wave, but nothing to write home about.
Saturday the 29th starts with a tiny 3ft groundswell, but it has a very long 19-second period. The combined energy is a weak 873. The wind is a light cross-offshore from the SE, so it's clean. It's a knee-high wave with a lot of energy in it, but it will be a bit slow and tricky. The afternoon builds to 6ft, but the wind swings cross-shore.
Now, mark your calendars for Monday the 31st of August. It’s a standout. The morning is glassy, with zero wind, and a clean 7ft swell from the WSW with a 17-second period. The combined energy is a solid 2322. This is the pick of the first week. Clean, head-high groundswell with no wind. It'll be a bit slower between sets with that long period, but the paddling will be easy and the lines will be smooth. Get out there.
The week after that is a mixed bag. Tuesday the 1st of September stays around 7ft, but the wind is cross-shore, creating a little chop. Wednesday the 2nd drops a bit, and the onshore wind keeps it fairly choppy.
Then we hit another rough patch. From Thursday the 3rd of September right through to Monday the 7th, we’ve got a lot of wind. Onshore winds from various directions, with a near gale on Friday the 4th bringing 31 mph winds and rain. That's blown out and dangerous. The swell is there, but it's unsurfable.
The real light at the end of the tunnel is Tuesday the 8th of September. The wind finally goes offshore from the ENE at 12 mph, with a clean 6ft to 7ft groundswell from the WSW. The combined energy is a moderate 1743 to 1856. This is excellent. Clean, offshore conditions, good groundswell, and a nice size. It's a bit of a wait, but it looks like it will be worth it. The 16-second period will make for some nice, powerful walls at this reef.
So, the two standout sessions are the glassy morning of Monday the 31st of August, and the offshore day on Tuesday the 8th of September. The rest is a lot of waiting for the wind to play nice.
Rusty.
Short Range ForecastHeavy rain (total 58mm), heaviest during Wed afternoon. Very mild (max 17°C on Tue afternoon, min 11°C on Thu morning). Winds increasing (calm on Wed afternoon, strong winds from the S by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun afternoon, min 12°C on Fri morning). Winds decreasing (fresh winds from the S on Fri morning, calm by Sun morning). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 12 | WSW 14 | WSW 13 | WSW 16 | WSW 18 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | SW 13 | SW 12 | WSW 12 | WSW 19 | SW 19 | WSW 18 | WSW 16 | WSW 16 | WSW 16 | WSW 17 | WSW 17 | WSW 16 |
Wave Graph | |||||||||||||||||||||
513 | 1159 | 1929 | 3754 | 7956 | 6924 | 4214 | 3072 | 1879 | 1094 | 874 | 359 | 657 | 2252 | 3067 | 2480 | 2228 | 1908 | 2199 | 2024 | 2219 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | off | cross-off | glassy | cross | cross-off | cross-on | cross-on | cross-off |
High Tide | 8:14AM0.64m | 11:26PM0.31m | 8:48AM0.63m | 11:01PM0.33m | 9:19AM0.60m | 10:58PM0.37m | 9:48AM0.55m | 11:01PM0.42m | 10:16AM0.48m | 11:09PM0.48m | 10:38AM0.40m | 11:25PM0.53m | |||||||||
Low Tide | 4:27PM0.08m | 4:33PM0.10m | 00:52AM0.31m | 4:35PM0.12m | 2:18AM0.29m | 4:38PM0.15m | 3:21AM0.28m | 4:42PM0.18m | 4:18AM0.26m | 4:45PM0.21m | 5:17AM0.25m | 4:43PM0.23m | |||||||||
6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | |
— | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | |
mm | — | — | 1 | 2 | 22 | 26 | 1 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 16 | 14 | 13 | 12 | 12 | 12 | 13 | 16 | 15 | 15 | 18 | 17 | 19 | 20 | 19 | 17 | 17 | 17 |
Feels °C | 12 | 12 | 14 | 15 | 14 | 11 | 5 | 4 | 6 | 7 | 10 | 10 | 13 | 17 | 16 | 19 | 18 | 17 | 15 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 14 | WSW 13 | WSW 16 | WSW 18 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | SW 13 | SW 12 | WSW 12 | WSW 11 | SW 19 | WSW 18 | WSW 16 | WSW 16 | WSW 16 | WSW 17 | WSW 17 | WSW 16 |
513 | 1159 | 1929 | 3754 | 7956 | 6924 | 4214 | 3072 | 1879 | 1094 | 874 | 359 | 219 | 2252 | 3067 | 2480 | 2228 | 1908 | 2199 | 2024 | 2219 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | WSW 22 | WSW 19 | — | — | — | — | — | W 21 | SW 20 | WSW 21 | WSW 19 | — | — | — | — | WSW 20 | — | — | — |
255 | — | 95 | 2443 | — | — | — | — | — | 9 | 15 | 180 | 657 | — | — | — | — | 139 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SW 24 | — | S 5 | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 22 | — | 12 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 4 | WNW 7 | — | — | — | S 6 | SSE 5 | SSE 5 | SSE 5 | — | S 4 | SSE 5 | S 4 | ESE 4 | — | — | — | WSW 4 | WSW 4 | — |
10 | 32 | 220 | — | — | — | 180 | 82 | 67 | 24 | — | 21 | 26 | 9 | 8 | — | — | — | 7 | 12 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 355 | 384 | 108 | 163 | 0 | 1625 | 1128 | 1625 | 358 | 611 | 188 | 82 | 0 | 0 | 0 | 0 | 82 | 0 | 32 | 236 | 0 |
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.











