Watermans Surf Break

Lat Long: 31.83° S 115.74° E

Watermans Surf Forecast and Surf Report

Issued: 7 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Watermans sea temperature is
17.1° C
1.7° 

Watermans surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Watermans surf forecast from 15 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 11AM (local time) - 11ft (3.5m), 16s period, WSW swell with glassy winds.
  • Most powerful swell: Monday 17 Aug, 8PM (local time) - 13ft (4.0m), 17s period, WSW swell with 8,204 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 8AM (local time) - 11ft (3.5m), 15s 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 Tuesday (Aug 18) at 8AM. The primary swell is predicted to be 3.5m and 15s 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 4.0m 17s and forecast to arrive on Monday (Aug 17) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 3s period and expected on Sunday (Aug 16) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 18th Aug)11ft (3.5m) 15s
Best Surf11AM (Tue 18th Aug)11ft (3.5m) 16s
Most Powerful 8PM (Mon 17th Aug)13ft (4.0m) 17s

Table - best surf conditions forecast for Watermans over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s have a look at what’s coming up for Watermans over the next couple of weeks.

The forecast window kicks off with some action right away. Sunday the 16th is a bit of a tease – you’ve got a solid 6ft to 7ft swell swinging in from the WSW with a very long period of 15-16 seconds, and the wind is cross-off from the NNE. The water temperature is about average for this time of year. The issue is the tide and conditions are described as marginal. The combined energy is pumping though, at 1766 to 2066 (moderate to strong energy), so there’s power, but it’s not quite coming together perfectly. It’s clean, but there’s a question mark over the tide.

Monday the 17th is a write-off – fresh cross-onshore winds and rain, swell jumping to 12ft but with horrible onshore wind. Forget it.

Now, here’s one of the true standouts: Tuesday morning the 18th. This is the best on offer in the first week. It’s glassy – dead calm, zero wind. Swell is a solid 12ft from the WSW with a 16-second period, and the combined energy is massive at 6070 (strong to very strong wave energy). This is expert territory – that size and power are not for beginners. The reef at Watermans will handle that long-period groundswell beautifully. The forecast says “exceptional surf conditions for expert surfers,” and I’m buzzing just reading it. If you’re skilled and ready, be there at dawn.

The rest of that week dips in quality. Wednesday and Thursday mornings see the swell stay in the 8ft to 10ft range, but the wind turns onshore or cross-onshore, making it lumpy. Energy drops a bit too, though Thursday morning still has 5043 (strong energy). Not the cleanest.

Then Friday the 21st offers another proper window. Both morning and afternoon have offshore winds – ENE and E, light to moderate. Swell is 8ft from the WSW, 15-second period, and the combined energy is around 2843 to 3282 (moderate to strong). The forecast calls it “excellent surf conditions for experienced surfers.” This is a serious session for anyone comfortable with overhead waves. Clean, powerful, and organized.

Saturday the 22nd drops off in size to 6ft-7ft, and winds go cross-shore. Not terrible, but nothing to write home about.

Sunday the 23rd is worth a mention – morning has a gentle offshore from the ENE, swell 6ft at 16 seconds, combined energy of 1339 (moderate). Clean and fun for the average surfer. Afternoon stays clean with light ESE cross-off.

Then there’s a long gap. From Monday the 24th onward, the surf gets small, messy, or blown out. The 24th has a 5ft swell but a fresh NNE cross-off – not great. Then a run of poor conditions with rain, strong onshore winds, and lumpy seas takes over from the 25th through the 27th. Combined energy spikes though – the 26th hits 7257 and 6269 (very strong), but it’s all onshore chop.

Now, looking further ahead to the second week, there’s a promising but less certain call for Saturday morning the 29th. Glassy conditions with an ESE breeze, a 8ft WSW swell, and a very long 18-second period. Combined energy is 4726 (strong energy). The forecast is “excellent surf conditions for experienced surfers.” That long-period groundswell will line up straight on the reef. Mark it, but know it’s a week and a half out.

Sunday the 30th morning also stands out – light NE cross-off, 10ft from the WSW, 17-second period, and combined energy of 4785 (strong energy). Clean and powerful. Again, for pros only.

Finally, Monday morning the 31st – the last call of the window – is glassy again, with a 12ft swell from the WSW, 15-second period, and combined energy of 5552 (very strong energy). The forecast says “exceptional surf conditions for expert surfers.” That caps off the run with a bang.

Overall, the standout is Tuesday the 18th morning with that glassy, high-energy, big swell. Friday the 21st and the late-month mornings (29th, 30th, 31st) are also prime for experienced surfers. Beginners should stay well clear of most of this – it’s heavy stuff when the swell is over 8ft.

Best wave of the window: Tuesday 18th morning at Watermans – glassy, 12ft, 16-second WSW groundswell, and it’s just you and the reef.

Rusty.

Short Range Forecast

Light rain (total 8mm), mostly falling on Mon afternoon. Warm (max 22°C on Sun afternoon, min 13°C on Tue morning). Winds decreasing (strong winds from the WSW on Mon afternoon, calm by Tue morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Wed night. Very mild (max 19°C on Fri afternoon, min 10°C on Fri morning). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
3
3
0
0
5
7
5
2
2
3
5
5
3
4
4
5
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
WSW
13
1.9
WSW
16
2.1
WSW
15
2.2
WSW
15
2.1
WSW
16
3.5
WSW
17
3.5
WSW
15
3.5
WSW
16
3.5
WSW
16
3
WSW
16
2.4
WSW
15
3
WSW
16
3
WSW
16
3
WSW
16
3
WSW
16
2.5
WSW
15
2.5
WSW
15
2.5
WSW
15
2.5
SW
16
Wave Graph
Metric surfscale
Energy kJ
987
1766
1847
2237
2274
7024
6040
6070
6270
4181
2581
3623
5271
5043
3936
2997
2843
3282
3238
Wind (km/h)
15
NE
30
NNE
20
NNE
25
NE
30
NW
40
WSW
15
SW
0
NNE
15
WNW
15
W
10
NW
10
W
10
NNW
5
W
20
SSW
15
SE
20
E
10
ESE
15
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-on
on
cross-on
glassy
on
on
cross-on
on
cross-on
on
cross
cross-off
off
off
off
High Tide
00:07AM0.42m
10:38AM0.41m
00:19AM0.48m
9:26AM0.35m
00:37AM0.52m
8:25AM0.33m
1:02AM0.55m
1:48AM0.56m
3:23AM0.56m
4:57AM0.57m
Low Tide
5:05AM0.30m
4:58PM0.23m
6:11AM0.31m
4:46PM0.21m
7:47AM0.33m
4:30PM0.19m
3:35PM0.16m
3:17PM0.13m
3:28PM0.10m
clear
clear
clear
clear
clear
mod rain
rain showers
part cloud
part cloud
part cloud
part cloud
clear
rain showers
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:52
6:50
6:48
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:49
5:50
5:50
5:51
5:52
5:52
5:52
 mm
7
1
1
Temp °C
19
20
22
20
18
16
16
15
16
16
17
17
17
15
17
16
15
19
18
Feels °C
17
13
16
16
13
9
10
14
12
13
14
13
15
14
13
12
11
17
14
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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