Backdoors surfForecast / SA – Nullarbor / Australia

information circle16 Day Weather and Surf, issued 2 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 9AM. The primary swell is predicted to be 0.4m and 17s period with a secondary swell of 0.6m and 8s. Another secondary swell of 0.4m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backdoors in the next 16 days are 2.0m 15s and forecast to arrive on Tuesday (May 26) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Friday (May 29) at 9AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 28th May)1.5ft (0.4m) 17s
Best Surf 9AM (Thu 28th May)1.5ft (0.4m) 17s
Most Powerful 6PM (Tue 26th May)6.5ft (2.0m) 15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 11mm), heaviest on Tue morning. Very mild (max 17°C on Mon afternoon, min 15°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue morning, calm by Thu morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Sun morning, min 15°C on Thu night). Wind will be generally light.

Mon
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
2
0
1
0
0
0
0
0
2
2
0
1
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)
2.1
SW
10
1.9
SSW
9
1.9
SSW
9
1.9
SSW
9
1.6
SSW
9
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
1
W
14
1.1
SW
13
1.4
SW
12
1.4
SW
12
1.1
SW
12
1
SW
11
1
SW
10
0.8
SW
10
0.6
SW
12
Wave Graph
Metric surfscale
Energy kJ
815
578
565
578
374
197
138
84
101
130
116
104
405
406
531
505
355
216
200
124
98
Wind (km/h)
30
SSW
30
SSW
30
SSW
30
SSW
30
SSE
15
SSE
20
S
15
SSE
10
E
5
SSW
10
NW
20
NW
30
W
20
WSW
15
SW
15
SW
10
N
20
N
20
WNW
20
NNW
30
NNW
on
on
on
on
cross-on
cross-on
on
cross-on
cross-off
on
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-off
off
cross
cross-off
cross-off
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
Low Tide
6:51PM0.60m
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
rain showers
clear
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
cloud
rain showers
rain showers
<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
5:43
5:42
5:42
5:42
5:40
5:40
2
4
3
2
3
1
Temp °C
17
16
17
16
16
17
17
17
16
17
16
19
18
17
17
17
16
22
24
18
20
12
11
12
10
10
14
14
16
16
16
16
15
13
14
14
14
16
17
19
15
11
Swell 1
Height (m)
Direction
Period (s)
0.7
SW
14
1
SSW
10
0.6
SW
13
0.7
SSW
9
0.6
S
8
0.5
S
8
0.5
SW
15
0.5
SW
15
0.2
S
8
0.1
S
8
0.9
SW
12
1.1
SW
12
1
SW
11
1
SW
10
0.8
SW
10
0.6
SW
10
Energy kJ
203
197
138
80
49
33
116
104
5
1
240
355
216
200
124
76
Swell 2
Height (m)
Direction
Period (s)
0.6
SW
13
0.1
SW
20
0.5
SW
12
0.4
SW
12
0.5
SW
16
0.4
SSW
8
0.3
S
8
0.3
SSE
8
0.1
S
7
0.1
SW
16
0.4
SW
14
0.4
SW
14
0.4
SW
13
0.6
SW
12
Energy kJ
144
16
77
50
130
19
11
13
1
10
73
69
62
98
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
21
0.4
SW
18
0.4
SW
17
0.4
SW
12
0.3
SW
12
0.1
SW
18
0.1
SW
17
Energy kJ
18
84
101
36
21
13
11
Wind waves
Height (m)
Direction
Period (s)
2.1
SW
10
1.9
SSW
9
1.9
SSW
9
1.9
SSW
9
1.6
SSW
9
0.4
SSW
13
0.8
SSW
9
0.3
SSW
13
0.6
NW
3
1
W
14
1.1
SW
13
1.4
SW
12
1.4
SW
12
0.3
NNE
2
0.4
SW
10
0.8
W
5
0.8
WNW
4
Energy kJ
815
578
565
578
374
60
110
31
6
405
406
531
505
1
27
32
16
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
4
3
2
2
2
2
1
1
2
1
2
2
2
2
1
4
4
Distance (km)
551
500
489
489
547
361
243
0
0
154
0
510
1045
649
1048
1216
0
0
132
564
933
Best forecast wave conditions in Nullarbor
Rating
(10 max)
2
2
1
2
2
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
3
2
4
4
4
Header Global
Rating
(10 max)
4
5
4
9
9
6
9
9
6
9
8
6
5
5
5
5
5
7
7
5
5
  • 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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