Surf Forecasts:
Watermans surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 2AM (local time) - 15ft (4.5m), 17s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 8 Aug, 8PM (local time) - 16ft (5.0m), 16s period, WSW swell with 12,142 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 2AM (local time) - 15ft (4.5m), 17s 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 Sunday (Aug 09) at 2AM. The primary swell is predicted to be 4.5m and 17s 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 5.0m 16s and forecast to arrive on Saturday (Aug 08) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Saturday (Aug 15) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 9th Aug) | 15ft (4.5m) 17s |
| Best Surf | 2AM (Sun 9th Aug) | 15ft (4.5m) 17s |
| Most Powerful | 8PM (Sat 8th Aug) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Watermans over the next 16 days.
The Lowdown
Alright, let’s talk about Watermans in feet and miles per hour. Rusty here, and this 16-day forecast is a real rollercoaster.
The first few days are a complete washout. The weekend and Monday are hammered by strong onshore winds, rain, and blown-out conditions. The water is 64°, which is a bit cold for this time of year, so don’t forget the rubber.
The first real highlight is Tuesday the 11th morning. That’s a standout. The swell is a solid 12ft from the WSW with a long 16-second period, packing a ton of energy. The wind is dead calm – glassy. That’s a rare, clean window for a powerful, long-period groundswell. For a reef break, it might be a bit walled up, but for clean, big waves, it’s a winner. 12ft is big, so it’s not for the faint of heart or beginners.
The next few days through the 14th offer cleaner, smaller surf in the 7ft to 7ft range with light offshore winds. It’s clean, but not the size of Tuesday. Crowds are likely at this spot.
The 15th and 16th see a drop in size and energy, but it’s clean and glassy on the Saturday afternoon.
The absolute standout, the one you need to plan for, is Wednesday the 19th of August. That morning is a monster. The swell is 16ft from the WSW with a 16-second period, and the energy is massive. The wind is a light cross-offshore, and it’s clean. That’s a serious, expert-only session. 16ft at a reef is not for the inexperienced. The afternoon is still huge at 15ft, but with a cross-shore chop.
The 20th is a nice, clean 10ft day, but it’s a step down.
The 21st and 22nd are wrecked by strong onshore winds, and the 23rd has a massive 18ft swell, but it’s cross-onshore and choppy, and the forecast says it’s too big for the break.
So, the best bets are Tuesday the 11th morning for a big, clean, glassy session, and Wednesday the 19th morning for the absolute, massive, expert-level groundswell. Everything else is either too small, too windy, or too big and messy. Keep your eyes on the 19th.
Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Mon afternoon. Very mild (max 16°C on Sun night, min 9°C on Mon night). Winds decreasing (strong winds from the SW on Sat morning, calm by Sun morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Wed night, min 8°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 14 | WSW 15 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 7 | SW 10 | SW 13 | WSW 16 | WSW 16 | WSW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 | SW 16 | WSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9654 | 11505 | 10670 | 6270 | 4523 | 2756 | 1089 | 2660 | 3314 | 6569 | 5772 | 3691 | 2246 | 1929 | 1785 | 2021 | 2794 | 2676 | 2413 | 2066 | 1468 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | on | on | cross-on | cross-off | glassy | on | cross-off | cross | cross-on | cross-off | cross-off | cross | off | cross-off | off | off |
High Tide | 6:21AM0.71m | 7:21AM0.74m | 8:13AM0.75m | 9:01AM0.73m | 9:44AM0.67m | 00:14AM0.30m | 10:20AM0.59m | 00:01AM0.36m | |||||||||||||
Low Tide | 3:35PM-0.01m | 4:10PM-0.04m | 4:45PM-0.05m | 5:18PM-0.02m | 5:44PM0.04m | 5:57PM0.12m | 2:36AM0.29m | 5:45PM0.19m | 3:58AM0.29m | ||||||||||||
 | |  |  | |  |  |  | |  |  |  | | | | | |  | | | | |
 | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — |
mm | 4 | 4 | — | — | — | 6 | 8 | 8 | 5 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 13 | 15 | 16 | 16 | 14 | 11 | 10 | 13 | 15 | 12 | 15 | 16 | 13 | 15 | 15 | 16 | 20 | 19 |
Feels °C | 3 | 2 | 6 | 10 | 12 | 13 | 9 | 4 | 3 | 8 | 10 | 12 | 9 | 13 | 15 | 10 | 13 | 12 | 13 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | — | — | WSW 17 | WSW 16 | WSW 16 | WSW 16 | — | W 10 | SW 13 | WSW 16 | WSW 16 | WSW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 | SW 16 | WSW 14 |
| kJ | — | — | 10670 | 6270 | 4523 | 2756 | — | 484 | 3314 | 6569 | 5772 | 3691 | 2246 | 1929 | 1785 | 2021 | 2794 | 2676 | 2413 | 2066 | 1468 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | WSW 21 | WSW 19 | — | — | SW 16 | — | W 10 | WSW 9 | WSW 8 | W 24 | SW 21 | — | — | — | — | — | — |
| kJ | — | — | — | — | 180 | 657 | — | — | 1201 | — | 31 | 295 | 96 | 11 | 117 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 14 | WSW 15 | — | — | — | NW 11 | WSW 7 | SW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 9654 | 11505 | — | — | — | 5 | 1089 | 2660 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1886 | 1999 | 0 | 105 | 924 | 384 | 678 | 2446 | 0 | 0 | 34 | 0 | 4 | 163 | 0 | 0 | 18 | 0 | 0 | 0 | 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.
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