Surf Forecasts:
Fourth Beach surf forecast from 17 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 16s period, SW swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 16s period, SW swell with 4,021 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 8PM (local time) - 5.5ft (1.7m), 16s period with SSW swell.
Best Forecast Surf Conditions for Fourth Beach this week:
The surf forecast for Fourth Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 8PM. The primary swell is predicted to be 1.7m and 16s period with a secondary swell of 1.4m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Fourth Beach in the next 16 days are 3.0m 16s and forecast to arrive on Thursday (Aug 20) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Aug 17) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 18th Aug) | 5.5ft (1.7m) 16s |
| Best Surf | 2AM (Thu 20th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 2AM (Thu 20th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Fourth Beach over the next 16 days.
The Lowdown
Alright, Rusty here, looking at the next couple of weeks at this one spot. Gonna be a bit of a rollercoaster.
We get started on Monday the 17th of August. There’s swell, but the conditions are fighting it. Monday morning shows a clean 6ft SSW groundswell with a very long period around 19 seconds and a fresh offshore wind, but the quality is questionable – it just ain’t right. Water temp is sitting at 62°F, which is about average for the year.
Tuesday the 18th is a total loss with a lumpy cross-onshore wind. Wednesday the 19th cleans up a bit, but nothing special.
Now for the good stuff. Thursday the 20th of August is a big day. The morning brings a clean 10ft SW swell, 16-second period, with a light cross-offshore wind. That’s a lot of power, and it’s for experts only. The combined swell energy is very strong (3990). That’s one of the best windows, but it’s serious.
Friday the 21st is still solid with a clean 8ft SSW swell.
The real sweet spot is Saturday the 22nd of August. You’ve got a clean 7ft SSW groundswell, 14-second period, with a gentle offshore wind in the morning. The water will be glassy, and the conditions are called excellent for experienced surfers. It’s a smaller, cleaner day that will be way more doable than the 10-foot stuff. The combined energy is still very strong (3060). That’s your morning.
Sunday the 23rd drops off, then Monday the 24th picks up again. Monday afternoon is a beast: a clean 10ft SW swell with an insane combined energy of 6486. That’s another expert-only, pure power day.
Into the second week, it gets messy. Tuesday the 25th is still big and clean, but from Wednesday the 26th onward it’s mostly choppy and onshore until the 30th of August. That Sunday morning the 30th has another clean 10ft SW swell with very strong energy (5689), but with a 17-second period, it’s going to be tricky on a beach break. It’s a long-range promise, so keep an eye on it.
For my money, get out there Saturday the 22nd of August. That’s your best bet.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 20°C on Mon afternoon, min 10°C on Mon night). Winds decreasing (strong winds from the W on Mon night, calm by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sat afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | SSW 19 | SSW 18 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 18 | SSW 17 | SSW 16 | SSW 14 | SSW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2573 | 1944 | 1907 | 1787 | 1339 | 1931 | 1672 | 2119 | 4021 | 3990 | 3559 | 3594 | 2919 | 2513 | 2148 | 1538 | 3315 | 2023 | 1057 | 763 | 1259 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-on | cross-on | off | cross-off | on | glassy | cross-off | on | glassy | cross | on | cross-off | off | cross-off | off | cross-off | cross-on | cross-off |
High Tide | 11:59AM0.75m | 00:49AM0.84m | 11:37AM0.71m | 1:13AM0.86m | 11:14AM0.69m | 1:45AM0.85m | 10:40AM0.69m | 2:34AM0.82m | 7:56AM0.80m | 8:35AM0.87m | |||||||||||
Low Tide | 6:13PM0.37m | 6:53AM0.53m | 6:05PM0.33m | 7:16AM0.60m | 6:06PM0.28m | 7:45AM0.66m | 6:10PM0.26m | 6:09PM0.25m | 5:53PM0.25m | 5:24PM0.24m | |||||||||||
 |  |  | | |  |  | | | | | | | |  | | | | | |  | |
 | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — |
mm | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 20 | 18 | 14 | 14 | 13 | 15 | 17 | 15 | 16 | 16 | 15 | 16 | 17 | 15 | 17 | 20 | 18 | 19 | 21 | 17 |
Feels °C | 9 | 13 | 11 | 8 | 8 | 11 | 10 | 13 | 14 | 14 | 13 | 14 | 15 | 15 | 13 | 13 | 18 | 13 | 15 | 19 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 14 | SSW 14 | SW 13 |
| kJ | 2573 | 1944 | 1907 | 1787 | 1339 | 1931 | 1672 | 2119 | 4021 | 3990 | 3559 | 3594 | 2919 | 2513 | 2148 | 1538 | 3315 | 2023 | 1057 | 763 | 1259 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 6 | E 7 | E 7 | SW 8 | SSW 8 | — | — | — | — | — | — | — | SSW 24 | SSW 21 | SSW 18 | — | SW 21 | SW 20 | SW 18 | SW 16 |
| kJ | 23 | 18 | 15 | 4 | 262 | 74 | — | — | — | — | — | — | — | 55 | 305 | 1522 | — | 18 | 97 | 252 | 306 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 7 | E 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | WSW 7 | SW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | N 3 | NNW 4 | WSW 4 | WNW 4 |
| kJ | 47 | 37 | 540 | 542 | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 19 | 14 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1057 | 121 | 288 | 288 | 141 | 0 | 232 | 288 | 0 | 0 | 288 | 0 | 3 | 493 | 1 | 0 | 0 | 0 | 4 | 405 | 120 |
Best forecast wave conditions in Far South of Western Australia | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Fourth Beach Surf forecast
The above surf forecast table for Fourth Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Fourth Beach can be found by selecting the local surf guide option on the grey menu. Our Fourth Beach 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 (Fourth Beach) 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 Fourth Beach 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 Far South of Western Australia? If you are looking for accommodation near Fourth Beach, camping, hotels and holiday cottages in Far South of Western Australia, consider staying in Esperance which is 5 km (3 miles) away.
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