
Surf Forecasts:
Watermans surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 11AM (local time) - 6ft (1.8m), 13s period, WSW swell with glassy winds.
- Most powerful swell: Saturday 19 Sep, 8AM (local time) - 11ft (3.5m), 15s period, WSW swell with 5,687 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 8AM (local time) - 5ft (1.6m), 14s 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 (Sep 16) at 8AM. The primary swell is predicted to be 1.6m and 14s 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 15s and forecast to arrive on Saturday (Sep 19) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Sep 17) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 16th Sep) | 5ft (1.6m) 14s |
| Best Surf | 11AM (Sun 20th Sep) | 6ft (1.8m) 13s |
| Most Powerful | 8AM (Sat 19th Sep) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Watermans over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid 16-day run ahead at Watermans, but it’s not all smooth sailing. The first few days are a write-off with messy onshore winds and poor surf quality, so don’t bother paddling out until the weekend. The good news is that a clean glass-off window arrives Sunday the 20th, and there's a proper standout session shaping up a week later on the 25th—if you can handle some size.
Watermans is a reef break, beginner-friendly when it’s small, but don’t get caught out when it pumps. The water’s sitting at 65°F, which is about average for this time of year. No surprises there.
Wednesday the 16th is a tease—5 ft of WSW swell at 14 seconds, but that 16 mph NE cross-off breeze keeps it clean. Combined energy’s moderate at 870, and the afternoon eases to 4 ft with a lighter ENE breeze. It’s rideable but not worth rushing.
Thursday the 17th and Friday the 18th are total washouts. Onshore winds crank up from the NW, hitting 19 mph on Friday, and the swell runs straight into a cross-on chop. Friday afternoon’s got a big energy spike—1704 (moderate energy)—but it’s lumpy and ugly. Leave the board in the truck.
Saturday the 19th turns nasty: 12 ft of WSW swell with howling 19 mph onshore winds. That’s 4957 energy points (strong wave energy), but it’s a beast only for the brave, and honestly, it’s more kite-surf territory. Not for paddle surfing.
Sunday the 20th morning – that’s your first real window. The swell drops to 6 ft from the WSW, period 13 seconds, and it goes glassy with a 3 mph northerly breeze. Combined energy sits at 1340 (moderate), and the report says excellent conditions for experienced surfers. The 6 ft is pushing into expert-only territory, but those clean, peeling waves will be worth the paddle. Expect crowds—it’s a spot that’s often busy.
Monday the 21st morning holds 8 ft of WSW swell, 15-second period, with a light offshore NNE breeze. Energy’s 2615 (strong). Clean and powerful, but again, this is for experienced surfers only. Tuesday the 22nd chills out to 6 ft but with cross-on wind, so it’s just marginal.
Wednesday the 23rd and Thursday the 24th are also marginal—swell between 4 ft and 6 ft, but winds shift onshore or cross-on. Nothing to get excited about.
Now Friday the 25th – this is the standout. The morning delivers 10 ft of WSW swell with a very long 19-second period, a gentle cross-on breeze, and energy reading a massive 6560 (very strong wave energy). That’s groundswell with serious travel time. The direction matches the break’s optimum (WSW), so expect long, lined-up sets. It’s a reef, so it should handle that period beautifully—though at this size, it’s expert-only. It gets messy by afternoon as 16 mph WNW cross-on winds kick in, so get in early.
Saturday the 26th is a blowing mess: 8 ft+ with 22 mph onshore winds. Not recommended.
Sunday the 27th morning goes glassy again—5 ft, 14-second WSW swell, and zero wind. Energy’s 1066 (moderate). Clean conditions for experienced surfers, but with a good crowd likely.
The final days into the 30th and 1st of October stay smaller (6 ft to 7 ft) and mostly cross or glassy, but the consistency fades. The 30th morning has a lovely glass-off with 6 ft from the SW, a 16-second period—clean and inviting.
The standout windows are Sunday the 20th morning for clean, overhead surf, and Friday the 25th morning for the big, powerful groundswell. Both are for experienced surfers. Get on it.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Warm (max 29°C on Wed afternoon, min 16°C on Thu night). Winds increasing (light winds from the NW on Thu night, fresh winds from the NW by Fri night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Warm (max 22°C on Mon morning, min 15°C on Sun morning). Winds decreasing (fresh winds from the W on Sat morning, calm by Sun afternoon). | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 14 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 17 | WSW 18 | W 13 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 16 | WSW 15 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
870 | 561 | 616 | 553 | 447 | 326 | 313 | 877 | 4000 | 4957 | 3448 | 1849 | 1028 | 824 | 2206 | 2615 | 2682 | 1972 | 1191 | 996 | 1138 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | on | on | on | on | glassy | cross | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-off |
High Tide | 11:23PM0.60m | 11:50PM0.59m | 00:26AM0.56m | 1:43AM0.53m | 5:24AM0.54m | 6:24AM0.55m | |||||||||||||||
Low Tide | 2:08PM0.18m | 2:01PM0.15m | 2:18PM0.13m | 2:37PM0.11m | 2:49AM0.53m | 2:54PM0.11m | 3:07PM0.11m | 3:13PM0.12m | |||||||||||||
6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | |
— | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | |
mm | — | — | — | — | — | — | — | — | 3 | — | — | — | 2 | — | — | — | — | — | — | — | — |
Temp °C | 24 | 29 | 25 | 25 | 22 | 18 | 22 | 20 | 16 | 16 | 17 | 17 | 16 | 17 | 17 | 22 | 21 | 17 | 17 | 18 | 17 |
Feels °C | 21 | 27 | 24 | 22 | 19 | 19 | 16 | 15 | 9 | 9 | 11 | 13 | 16 | 15 | 14 | 19 | 17 | 14 | 16 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 18 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 16 | WSW 15 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | SW 14 |
870 | 561 | 616 | 553 | 447 | 326 | 278 | 877 | 1194 | 4957 | 3448 | 1849 | 1028 | 824 | 2206 | 2615 | 2682 | 1972 | 1191 | 996 | 1138 | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 21 | WSW 20 | SW 19 | WSW 18 | WSW 17 | W 15 | — | — | — | — | WSW 13 | — | W 9 | — | — | — | — | — | — |
— | — | 18 | 38 | 91 | 127 | 313 | 38 | — | — | — | — | 312 | — | 129 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 3 | — | NE 3 | NNW 3 | WNW 4 | WNW 4 | NW 5 | WNW 8 | W 13 | — | — | — | — | — | — | — | SSW 4 | — | — | — | — |
1 | — | 2 | 2 | 11 | 12 | 86 | 789 | 4000 | — | — | — | — | — | — | — | 11 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 0 | 34 | 282 | 282 | 0 | 340 | 367 | 611 | 1122 | 1880 | 163 | 0 | 34 | 0 | 0 | 163 | 3 | 412 | 163 | 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.










