Surf Forecasts:
Fourth Beach surf forecast from 18 Aug 2026:
- Best quality surf: Friday 21 Aug, 2AM (local time) - 10ft (3.0m), 16s period, SSW swell with offshore winds.
- Most powerful swell: Friday 21 Aug, 2AM (local time) - 10ft (3.0m), 16s period, SSW swell with 4,070 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 1.5m and 8s. The wind is predicted to be glassy 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 Friday (Aug 21) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 25) at 8AM.
| 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 (Fri 21st Aug) | 10ft (3.0m) 16s |
| Most Powerful | 2AM (Fri 21st Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Fourth Beach over the next 16 days.
The Lowdown
Alright, Rusty here again, this time in feet and miles per hour for the crew that thinks in old school.
Let’s talk Fourth Beach. There’s a big, long-period SSW groundswell on the way. The combined energy is pumping at 2488 (moderate to strong energy) right from Tuesday morning. Water temp is 16.4°, right around average for the season. But the wind is a cross-on mess for the first couple of days, so Tuesday and Wednesday are a wash. Lumpy, choppy, not worth paddling out.
Thursday morning the 20th shows some light. The swell is 8.2ft from the SW, period still a solid 16 seconds, and the wind goes light cross. The energy is strong at 3604. It’s still a bit marginal, but it’s cleaning up. Then Friday the 21st is a real standout. The swell hits 9.8ft from the SSW, with a 16-second period, and the wind is glassy – dead calm. The energy is roaring at 3650 (strong energy). This is expert-level stuff. At nearly 10ft, it’s only for the skilled.
Saturday the 22nd is another gem. The swell drops to 6.6ft from the SSW, but the wind goes offshore from the N. Clean, smooth lines, and the energy is still strong at 2884. That’s the best of the first week – powerful but a little more manageable.
Sunday the 23rd the quality drops fast. Onshore wind, the swell fades, and the energy falls to 1334 (moderate energy). There’s a long gap of poor conditions through the 24th and 25th, with a massive 11.5ft mess of wind-chop on the 25th and 26th. The energy on the 26th hits 8734 (very strong energy), but the wind is cross and it’s way too big for this break. Kite surfers might have a field day, but for paddle surfing, it’s a hard pass.
Things turn around around the 1st of September. Tuesday morning the 1st has clean 4.6ft swell from the SW with a light cross-off breeze. The energy is moderate at 1005, but the conditions are very good. Then Wednesday the 2nd sees a spike to 11.5ft from the SSW, but this time with offshore wind from the NNW. That’s a clean, powerful setup, but only for experts. The period is shorter at 9 seconds, so it’s a bit more of a wind swell, but the offshore wind will hold it up nicely.
If I’m calling the standouts, it’s Friday the 21st for that glassy, massive groundswell, and Saturday the 22nd for the clean offshore conditions with plenty of power. The 1st of September is also a solid bet for a smaller, cleaner session.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the WSW on Tue morning, calm by Thu night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Warm (max 21°C on Sat afternoon, min 13°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 13 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1536 | 1339 | 1305 | 1904 | 2270 | 3970 | 3604 | 3197 | 4070 | 3637 | 3038 | 2178 | 1560 | 2648 | 1997 | 1227 | 921 | 1317 | 822 | 725 | 895 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | off | cross-off | cross-on | cross-off | cross | cross-on | off | glassy | cross-on | cross-off | off | cross-on | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 11:37AM0.71m | 1:13AM0.86m | 11:14AM0.69m | 1:45AM0.85m | 10:40AM0.69m | 2:34AM0.82m | 7:56AM0.80m | 8:35AM0.87m | 9:05AM0.93m | 11:55PM0.53m | |||||||||||
Low Tide | 6:05PM0.33m | 7:16AM0.60m | 6:06PM0.28m | 7:45AM0.66m | 6:10PM0.26m | 6:09PM0.25m | 5:53PM0.25m | 5:24PM0.24m | 5:08PM0.21m | 2:26AM0.52m | |||||||||||
 | |  | |  | | | |  | | | | | | |  |  | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 5:23 | — | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — |
Temp °C | 14 | 14 | 14 | 16 | 17 | 15 | 15 | 15 | 14 | 15 | 17 | 14 | 18 | 21 | 18 | 15 | 15 | 14 | 15 | 15 | 13 |
Feels °C | 7 | 9 | 13 | 10 | 12 | 13 | 14 | 12 | 12 | 13 | 15 | 10 | 14 | 19 | 14 | 12 | 11 | 9 | 12 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 13 | SSW 14 |
| kJ | 1536 | 1339 | 1305 | 1904 | 2270 | 3970 | 3604 | 3197 | 4070 | 3637 | 3038 | 2178 | 1560 | 2648 | 1997 | 1227 | 921 | 1317 | 822 | 725 | 895 |
Swell 2 Height (m) Direction Period (s) | E 7 | SW 8 | SW 8 | — | S 7 | — | — | — | — | S 26 | SW 24 | SSW 20 | SSW 18 | — | NE 4 | SW 21 | SW 19 | SW 17 | SW 16 | SW 15 | — |
| kJ | 4 | 373 | 216 | — | 9 | — | — | — | — | 13 | 141 | 807 | 1324 | — | 3 | 69 | 181 | 439 | 310 | 322 | — |
Swell 3 Height (m) Direction Period (s) | — | E 7 | E 7 | — | — | — | — | — | — | — | — | — | — | — | — | E 6 | — | — | — | — | — |
| kJ | — | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 9 | SSW 8 | — | WNW 4 | WSW 9 | — | — | — | — | — | — | ENE 4 | — | — | NNW 3 | SW 5 | SW 5 | — | WNW 4 | — | N 3 |
| kJ | 952 | 230 | — | 12 | 565 | — | — | — | — | — | — | 8 | — | — | 4 | 38 | 69 | — | 14 | — | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 288 | 232 | 0 | 629 | 288 | 0 | 4 | 288 | 0 | 0 | 578 | 120 | 0 | 1057 | 0 | 578 | 625 | 160 | 160 | 288 | 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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