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Long Beach Surf Forecast
/ SA – East Coast (28 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Long Beach surfForecast / SA – East Coast / Australia
12 Day Weather and Surf, issued 8 pm Thursday 18 Sep 2025 ACST
Best Forecast Surf Conditions for Long Beach this week:
The surf forecast for Long Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 20) at 9AM. The primary swell is predicted to be 5.0m and 13s period with a secondary swell of 4.5m and 14s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Long Beach in the next 12 days are 4.0m 18s and forecast to arrive on Thursday (Sep 25) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 20th Sep) | 16ft (5.0m) 13s |
| Best Surf | 9AM (Sat 20th Sep) | 16ft (5.0m) 13s |
| Most Powerful | 9AM (Thu 25th Sep) | 13ft (4.0m) 18s |
Table - best surf conditions forecast for Long Beach over the next 12 days.
Short Range Forecast Light rain (total 5mm), mostly falling on Fri afternoon. Very mild (max 16°C on Thu night, min 11°C on Fri afternoon). Winds increasing (light winds from the WNW on Thu night, strong winds from the WNW by Fri afternoon). | Days 3-6 Weather Summary Some drizzle, heaviest during Sun night. Very mild (max 13°C on Sun night, min 11°C on Mon night). Mainly fresh winds. | |||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 9 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 18 | 17 | 16 | 16 | 18 | 17 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 1313 | 1455 | 1689 | 7014 | 8960 | 7214 | 4605 | 4324 | 3880 | 3799 | 6237 | 7453 | 4499 | 3159 | 2462 | 4912 | 4137 | 3905 | 4705 | 9335 | 8812 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross | cross- on | on | cross- on | cross- on | cross- on | on | cross- on | on | |
High Tide / height (m) | 12:35AM 0.05 | 11:53AM 0.11 | 11:55PM 0.06 | 12:03PM 0.11 | 12:05AM 0.08 | 12:16PM 0.11 | 12:18AM 0.09 | 12:27PM 0.10 | 12:39AM 0.10 | 12:39PM 0.10 | 1:00AM 0.11 | 12:50PM 0.09 | 1:23AM 0.12 | 1:00PM 0.09 | ||||||||
Low Tide / height (m) | 4:24AM 0.04 | 7:04PM 0.03 | 5:10AM 0.03 | 6:38PM 0.03 | 5:45AM 0.02 | 6:32PM 0.03 | 6:16AM 0.02 | 6:34PM 0.02 | 6:44AM 0.02 | 6:41PM 0.01 | 7:09AM 0.02 | 6:52PM 0.01 | 7:33AM 0.03 | |||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Sunrise | - | 6:05 | - | - | 6:03 | - | - | 6:03 | - | - | 6:01 | - | - | 6:00 | - | - | 5:58 | - | - | 5:56 | - | |
| Sunset | - | - | 6:04 | - | - | 6:04 | - | - | 6:05 | - | - | 6:06 | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | |
 |  |  |  |  | |  | |  | | | | | | | | | | | | | ||
Rain (mm) | - | - | 4 | 1 | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 16 | 14 | 14 | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 12 | 12 | 12 | 12 | 13 | 12 | 14 | 14 | |
| Feels °C (?) | 14 | 7 | 5 | 4 | 6 | 6 | 6 | 7 | 7 | 8 | 6 | 4 | 5 | 8 | 8 | 8 | 8 | 11 | 8 | 8 | 9 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for SA - East Coast
Continuing clean conditions at Long Beach (calm at Robe Airfield 3 km from Long Beach). 2.4m 12s groundswell from the WSW with a 0.6m 10s swell from the S. 2 swells combining to make bigger set waves.
1 h 8 min ago
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 12 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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