Long Beach surfForecast / SA – East Coast / Australia

information circle12 Day Weather and Surf, issued 3 am Sunday 11 Jan 2026 ACDT
Forecast update in hr  min  s Forecast update imminent
Long Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Long Beach sea temperature is
17.5° C
(Which is normal for this time of year)


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 (Jan 17) at 10AM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.6m and 16s. Another secondary swell of 1.1m and 7s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Long Beach in the next 12 days are 2.5m 12s and forecast to arrive on Sunday (Jan 11) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Friday (Jan 16) at 4PM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sat 17th Jan)3.5ft (1.1m) 13s
Best Surf10AM (Sat 17th Jan)3.5ft (1.1m) 13s
Most Powerful10AM (Sun 11th Jan)8ft (2.5m) 12s

Table - best surf conditions forecast for Long Beach over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 17°C on Tue morning, min 11°C on Sun night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Fri morning, min 14°C on Wed night). Mainly strong winds.

Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
1
2
1
0
1
1
1
2
2
1
2
1
0
1
1
0
1
3
1
2
Swell
Height Map
Wave Height (m) & direction (?)
2.5
SW
2.3
SW
1.8
SW
1.4
SW
1.1
SW
1.1
SW
0.8
SW
1.4
SW
1.9
SW
1.9
SW
1.8
SW
1.6
SW
1.3
SW
1.3
SW
1.1
SW
1.1
SW
1.3
SW
1.3
SW
1.1
SW
1.3
SW
1.1
SW
Period(s) (?)121110101010171614141413131212121413131414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)18391270634373235255427967146314231226892572528361303639552418595500
Wind
(km/h)
20
S
30
S
20
SE
15
SSE
30
S
20
SE
25
SSE
35
S
30
SSE
30
SSE
40
SSE
35
SE
35
SSE
40
S
30
SE
25
SSE
45
SSE
25
SE
15
ESE
35
SSE
25
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
cross-
off
crosscross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
off
High Tide
/ height (m)
5:58PM
0.08
3:53AM
0.09
8:09PM 2:56AM
0.08 0.08
12:34AM
0.09
12:33AM
0.10
12:54AM
0.11
1:17AM
0.12
12:15PM
0.04
1:40AM
0.13
Low Tide
/ height (m)
11:01AM
0.02
10:23PM
0.06
11:28AM
0.02
10:08PM
0.08
11:57AM
0.02
12:33PM
0.03
2:31PM
0.03
4:38PM
0.02
9:34AM
0.04
5:37PM
0.02
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunrise6:01--6:03--6:03--6:05--6:05--6:07--6:07--
Sunset-8:32--8:32--8:32--8:32--8:31--8:31--8:31-
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C151413161614171714161615171715201917232323
Feels °C (?)987131091211899911109131111191717
  • 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 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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