Backdoor Surf Break

Lat Long: 23.93° S 35.53° E

Backdoor Surf Forecast and Surf Report

Issued: 1 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Backdoor sea temperature is
23.0° C
0.1° 

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


Backdoor surf forecast from 21 Aug 2026:

  • Best quality surf: Saturday 22 Aug, 2AM (local time) - 4.5ft (1.3m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 27 Aug, 11AM (local time) - 7.5ft (2.3m), 18s period, S swell with 3,231 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 2.5ft (0.7m), 13s period with SSW 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 (Aug 21) at 8AM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.5m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backdoor in the next 16 days are 2.3m 18s and forecast to arrive on Thursday (Aug 27) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Aug 22) at 11PM.

Wave TypeTime (CAT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 21st Aug)2.5ft (0.7m) 13s
Best Surf 2AM (Sat 22nd Aug)4.5ft (1.3m) 14s
Most Powerful11AM (Thu 27th Aug)7.5ft (2.3m) 18s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Fri morning, min 20°C on Fri morning). Winds increasing (light winds from the WSW on Fri morning, fresh winds from the S by Sun morning).

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Wed night, min 19°C on Mon night). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
3
1
1
0
0
0
0
0
1
1
0
0
0
0
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SSW
13
0.7
SSW
16
1.3
SSW
14
1.1
SSW
13
0.9
SSW
12
0.8
SSW
12
1.4
SSW
16
2.3
S
8
2.5
S
10
2
S
11
1.8
S
10
1.5
S
10
1.3
S
10
1
SSE
10
0.7
SSW
16
1
SSW
16
1
SSW
15
1.2
S
17
2.3
S
18
2.3
S
16
1.7
S
14
Wave Graph
Metric surfscale
Energy kJ
99
276
615
373
258
176
1016
686
1611
898
676
452
340
179
273
540
474
819
3231
2702
1145
Wind (km/h)
5
ENE
10
E
10
NNE
15
NNE
20
NNE
25
N
35
S
35
S
20
SSE
15
SE
15
SE
10
ESE
10
ESE
15
SE
10
ESE
20
SE
25
SSE
20
SE
30
SE
20
SE
20
E
Wind State
cross
cross-on
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
on
cross-on
on
on
on
on
on
cross-on
High Tide
8:23AM1.75m
9:09PM1.61m
10:38AM1.56m
00:58AM1.59m
1:37PM1.71m
2:07AM1.82m
2:22PM1.96m
2:40AM2.06m
2:53PM2.21m
3:07AM2.29m
3:20PM2.44m
3:32AM2.49m
3:46PM2.63m
3:58AM2.65m
Low Tide
2:46PM1.13m
3:43AM1.25m
6:13PM1.23m
7:19AM1.17m
7:54PM1.02m
8:13AM0.93m
8:32PM0.79m
8:45AM0.69m
9:01PM0.57m
9:13AM0.47m
9:28PM0.38m
9:38AM0.28m
9:54PM0.22m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:56
5:56
5:56
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:22
5:22
5:23
5:23
5:23
5:24
 mm
1
Temp °C
23
23
22
23
23
22
22
21
20
20
20
20
20
20
20
20
21
22
21
21
22
Feels °C
24
22
23
23
22
22
18
16
16
18
18
19
20
19
19
19
18
19
17
18
18
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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