Backdoor Surf Break

Lat Long: 23.93° S 35.53° E

Backdoor Surf Forecast and Surf Report

Issued: 1 am 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor sea temperature is
23.7°C
0.5° 

Backdoor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Backdoor surf forecast from 12 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 8AM (local time) - 3ft (0.9m), 10s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 15 Sep, 5PM (local time) - 7ft (2.2m), 10s period, ESE swell with 961 kJ wave energy.
  • Next surfable swell (1★+): Friday 18 Sep, 2AM (local time) - 3ft (0.9m), 9s period with ESE swell.

Best Forecast Surf Conditions for Backdoor this week:

The surf forecast for Backdoor over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 2AM. The primary swell is predicted to be 0.9m and 9s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Backdoor in the next 16 days are 2.2m 10s and forecast to arrive on Tuesday (Sep 15) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Wednesday (Sep 16) at 11PM.

Wave TypeTime (CAT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 18th Sep)3ft (0.9m) 9s
Best Surf 8AM (Sat 19th Sep)3ft (0.9m) 10s
Most Powerful 5PM (Tue 15th Sep)7ft (2.2m) 10s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Mon morning, min 21°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Wed afternoon. Warm (max 24°C on Tue afternoon, min 22°C on Thu night). Winds decreasing (fresh winds from the NNE on Tue afternoon, calm by Thu night).

Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
1
2
2
2
0
0
0
1
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
ESE
8
0.9
ESE
8
0.6
ESE
8
0.4
SSW
12
0.6
E
8
0.5
SSW
19
0.6
SSW
17
1.5
ESE
7
1.5
SE
8
2
ESE
9
2.2
ESE
10
2
ESE
10
1.6
ESE
10
1.4
ESE
10
1.4
ESE
10
1.2
ESE
9
1
ESE
9
0.9
ESE
9
0.9
ESE
9
0.8
SSW
8
1
SSW
10
Wave Graph
Metric surfscale
Energy kJ
134
99
53
50
47
205
224
217
306
630
961
742
434
363
394
237
151
119
116
82
236
Wind (km/h)
15
ESE
20
ESE
15
NE
15
NE
20
ENE
20
E
25
ENE
20
ENE
25
NE
20
NNE
35
NNE
15
NE
25
ENE
30
NE
30
NE
25
NNE
30
NNE
5
NNW
20
NNE
35
NNE
25
NNE
Wind State
cross-on
cross-on
cross
cross
cross
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross-on
cross
cross
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
High Tide
4:31PM2.96m
4:42AM2.87m
4:59PM2.91m
5:09AM2.81m
5:25PM2.78m
5:35AM2.69m
5:51PM2.60m
6:01AM2.51m
6:16PM2.37m
6:27AM2.28m
6:41PM2.13m
6:53AM2.03m
7:09PM1.87m
Low Tide
10:21AM-0.10m
10:39PM-0.02m
10:51AM-0.09m
11:07PM0.03m
11:18AM0.01m
11:33PM0.14m
11:45AM0.16m
11:58PM0.31m
12:11PM0.37m
00:22AM0.51m
12:36PM0.60m
00:46AM0.74m
1:03PM0.86m
1:13AM0.99m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:37
5:35
5:35
5:33
5:33
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:30
5:30
5:31
5:31
 mm
1
Temp °C
22
22
21
22
22
22
23
23
23
23
24
23
24
24
23
24
24
23
24
24
23
Feels °C
22
21
19
21
21
19
21
21
22
23
21
22
24
23
22
24
23
22
24
22
21
  • 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 Backdoor Surf forecast

The above surf forecast table for Backdoor provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Backdoor can be found by selecting the local surf guide option on the grey menu. Our Backdoor 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 (Backdoor) 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 Backdoor 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.

Backdoor is 15 km (9 miles) from the city of Inhambane. If you plan a holiday in Inhambane, look for hotels and other accommodation in Inhambane. Inhambane has rooms for a wide range of budgets as well as car hire and transport links.

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