Backdoors surfForecast / SA – Nullarbor / Australia

information circle16 Day Weather and Surf, issued 8 pm Monday 25 May 2026 ACST
Forecast update in hr  min  s Forecast update imminent
Backdoors surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backdoors sea temperature is
18.1° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Backdoors this week:

The surf forecast for Backdoors over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 28) at 6AM. The primary swell is predicted to be 0.4m and 18s period with a secondary swell of 0.6m and 9s. Another secondary swell of 0.4m and 12s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Backdoors in the next 16 days are 1.9m 14s and forecast to arrive on Tuesday (May 26) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Jun 01) at 6AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Thu 28th May)1.5ft (0.4m) 18s
Best Surf12AM (Sun 31st May)3ft (0.9m) 12s
Most Powerful 9PM (Tue 26th May)6ft (1.9m) 14s

Table - best surf conditions forecast for Backdoors over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 9mm), mostly falling on Tue morning. Very mild (max 17°C on Tue morning, min 15°C on Tue night). Winds decreasing (fresh winds from the SSW on Mon night, calm by Wed night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Sun afternoon, min 15°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the NNE by Sun afternoon).

Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Mon
1
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
2
2
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
SSW
9
2
SSW
9
1.8
SW
9
1.6
SSW
9
1.1
SSW
10
0.6
SW
13
0.4
SW
18
0.4
SW
17
0.5
SW
16
0.5
SW
15
0.5
SW
15
0.8
WSW
14
0.5
SW
13
1
SW
12
1.1
SW
12
0.9
SW
12
1
SW
11
0.8
SW
11
0.7
SW
10
0.6
SW
13
2.1
W
7
Wave Graph
Metric surfscale
Energy kJ
578
623
539
413
235
138
84
102
130
116
104
273
87
287
319
224
233
162
100
142
491
Wind (km/h)
30
SSW
30
SSW
30
SSW
30
SSE
15
SE
20
S
10
SSW
5
E
5
SSW
10
NNW
25
NW
25
WSW
15
WSW
20
WNW
25
WSW
5
WSW
20
NNE
30
NNE
25
NW
50
NW
65
WNW
on
on
on
cross-on
cross-on
on
on
cross-off
on
cross-off
cross-off
cross-on
cross-on
cross
cross-on
glassy
off
off
cross-off
cross-off
cross
High Tide
9:50PM0.62m
11:15AM0.84m
10:06PM0.67m
11:00AM0.98m
10:31PM0.71m
11:09AM1.11m
10:58PM0.75m
11:26AM1.21m
11:23PM0.78m
11:47AM1.30m
11:46PM0.79m
12:10PM1.35m
00:08AM0.80m
12:34PM1.37m
Low Tide
4:10AM0.42m
5:30PM0.52m
4:04AM0.33m
5:26PM0.42m
4:20AM0.25m
5:41PM0.32m
4:40AM0.18m
6:01PM0.24m
5:03AM0.13m
6:23PM0.19m
5:25AM0.09m
6:46PM0.17m
5:48AM0.06m
rain showers
rain showers
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
rain showers
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
7:26
7:26
7:28
7:28
7:28
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:43
5:42
5:42
5:42
5:40
5:40
4
3
2
1
Temp °C
16
17
16
17
17
17
16
17
17
16
20
18
17
18
17
17
18
22
22
18
18
11
12
10
11
14
14
14
17
16
16
15
14
14
14
12
15
12
15
18
5
5
Swell 1
Height (m)
Direction
Period (s)
0.7
SW
14
1.1
SSW
10
0.8
SSW
9
0.6
SSW
9
0.5
S
8
0.5
S
8
0.5
SW
15
0.5
SW
15
0.2
S
8
0.5
SW
13
1
SW
12
0.1
S
7
0.9
SW
12
1
SW
11
0.8
SW
11
0.7
SW
10
0.6
SW
13
0.9
SSW
13
Energy kJ
203
235
110
61
36
33
116
104
5
87
287
1
224
233
162
100
142
249
Swell 2
Height (m)
Direction
Period (s)
0.6
SW
13
0.6
SW
13
0.5
SW
12
0.4
SW
12
0.5
SW
16
0.4
SSW
8
0.2
S
7
0.3
SSE
8
0.1
S
8
0.1
S
8
0.1
S
7
0.1
SW
16
0.1
SW
18
0.3
SW
14
0.4
SW
13
0.5
SW
9
0.1
SW
20
Energy kJ
144
138
75
50
130
19
4
12
1
1
1
10
12
33
62
42
15
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
21
0.1
SW
20
0.4
SW
18
0.4
SW
17
0.4
SW
12
0.3
SW
12
0.1
S
7
0.1
SW
18
0.2
N
3
0.1
SW
16
Energy kJ
18
16
84
102
35
21
1
13
1
11
Wind waves
Height (m)
Direction
Period (s)
1.9
SSW
9
2
SSW
9
1.8
SW
9
1.6
SSW
9
0.4
S
10
0.3
SSW
13
0.2
SSW
9
0.2
SSW
16
0.6
WNW
3
0.8
WSW
14
0.7
SW
6
1.1
SW
12
0.3
N
3
0.6
NW
4
1.1
WNW
5
2.1
W
7
Energy kJ
578
623
539
413
30
34
8
26
7
273
34
319
1
10
54
491
Nearest Offshore or Glassy
Rating
(10 max)
2
4
2
3
3
2
2
1
2
1
2
1
1
2
2
2
2
2
2
3
4
Distance (km)
500
547
489
243
361
491
132
0
491
0
500
510
649
1035
1035
0
0
177
652
1227
1228
Best forecast wave conditions in Nullarbor
Rating
(10 max)
1
1
2
2
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
5
4
4
4
4
4
5
5
4
3
3
4
4
3
3
4
5
5
4
Header Global
Rating
(10 max)
4
4
9
6
7
7
9
6
7
7
6
5
5
5
5
4
4
7
5
5
6
  • 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 Backdoors Surf forecast

The above surf forecast table for Backdoors provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Backdoors can be found by selecting the local surf guide option on the grey menu. Our Backdoors 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 (Backdoors) 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 Backdoors 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 Nullarbor? If you are looking for accommodation near Backdoors, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.

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