Surf Forecasts:
Long Beach surf forecast from 11 Sep 2026:
- Best quality surf: Friday 11 Sep, 6PM (local time) - 11ft (3.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 12PM (local time) - 16ft (5.0m), 14s period, SW swell with 9,961 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 6PM (local time) - 11ft (3.5m), 16s period with SW swell.
Best Forecast Surf Conditions for Long Beach this week:
The surf forecast for Long Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 6PM. The primary swell is predicted to be 3.5m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Long Beach in the next 16 days are 5.0m 14s and forecast to arrive on Tuesday (Sep 15) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Sunday (Sep 13) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 11th Sep) | 11ft (3.5m) 16s |
| Best Surf | 6PM (Fri 11th Sep) | 11ft (3.5m) 16s |
| Most Powerful | 12PM (Tue 15th Sep) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Long Beach over the next 16 days.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun afternoon. Warm (max 20°C on Sat afternoon, min 10°C on Fri morning). Winds increasing (light winds from the SE on Fri morning, fresh winds from the N by Sun morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Mon afternoon, min 7°C on Wed night). Winds decreasing (fresh winds from the SW on Mon night, light winds from the E by Wed night). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | SW 15 | SW 16 | SW 16 | SW 15 | SW 16 | SW 15 | SW 16 | WSW 16 | SW 14 | WSW 14 | SW 13 | WSW 16 | SW 14 | SW 14 | SW 15 | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4166 | 5478 | 5169 | 3548 | 3001 | 2117 | 1869 | 1629 | 1031 | 1230 | 406 | 3000 | 7449 | 9681 | 6629 | 5842 | 5563 | 4957 | 2570 | 2125 | 3077 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-off | cross-on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross | off | off | on | cross-off |
High Tide | 12:33PM0.11m | 00:28AM0.09m | 12:43PM0.10m | 00:53AM0.10m | 12:52PM0.10m | 1:18AM0.11m | 1:01PM0.09m | 1:45AM0.12m | 1:10PM0.09m | 2:11AM0.12m | 1:19PM0.09m | 2:38AM0.11m | 1:24PM0.09m | 3:05AM0.11m | |||||||
Low Tide | 6:50PM0.03m | 6:27AM0.02m | 6:49PM0.02m | 6:57AM0.02m | 6:56PM0.01m | 7:24AM0.02m | 7:08PM0.00m | 7:49AM0.03m | 7:24PM-0.00m | 8:12AM0.04m | 7:41PM-0.00m | 8:35AM0.05m | 7:59PM-0.00m | ||||||||
 | |  | | | |  |  | |  |  | | | |  | | | | | | | |
 | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — |
mm | — | — | — | — | — | — | 1 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 16 | 17 | 20 | 19 | 16 | 15 | 14 | 14 | 15 | 13 | 11 | 11 | 11 | 11 | 10 | 9 | 11 | 12 | 13 |
Feels °C | 11 | 14 | 14 | 13 | 17 | 15 | 11 | 12 | 13 | 9 | 10 | 7 | 2 | 2 | 4 | 6 | 5 | 5 | 9 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 16 | SW 16 | SW 15 | SW 16 | SW 15 | SW 16 | WSW 16 | SW 14 | SW 14 | SW 13 | SW 16 | — | SW 14 | SW 15 | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 | SW 16 |
| kJ | 4166 | 5478 | 5169 | 3548 | 3001 | 2117 | 1869 | 1629 | 1031 | 765 | 406 | 448 | — | 9681 | 6629 | 5842 | 5563 | 4957 | 2570 | 2125 | 3077 |
Swell 2 Height (m) Direction Period (s) | SW 18 | — | — | — | — | — | — | — | NW 5 | SW 19 | SW 18 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1571 | — | — | — | — | — | — | — | 3 | 131 | 252 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 21 | SSW 10 | S 10 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 18 | 19 | 17 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNW 5 | NNW 5 | NW 5 | WSW 14 | WSW 6 | WSW 16 | SW 14 | SW 14 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 17 | 21 | 12 | 1230 | 155 | 3000 | 7449 | 7449 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 5 | 5 | 42 | 42 | 56 | 42 | 140 | 98 | 212 | 255 | 411 | 349 | 349 | 289 | 5 | 212 | 5 | 0 | 212 | 42 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Long Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Long Beach Surf forecast
The above surf forecast table for Long Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Long Beach can be found by selecting the local surf guide option on the grey menu. Our Long 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 (Long 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 Long 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 South Australia - East Coast? If you are looking for accommodation near Long Beach, camping, hotels and holiday cottages in South Australia - East Coast, consider staying in Mount Gambier which is 115 km (71 miles) away.
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