Backdoor Surf Break

Lat Long: 23.93° S 35.53° E

Backdoor Surf Forecast and Surf Report

Issued: 7 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor sea temperature is
23.9°C
0.7° 

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


Backdoor surf forecast from 8 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 11PM (local time) - 5ft (1.5m), 9s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 8 Sep, 11PM (local time) - 5ft (1.6m), 14s period, S swell with 1,002 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 5ft (1.5m), 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 Thursday (Sep 10) at 11PM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.7m and 11s. 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 1.6m 14s and forecast to arrive on Tuesday (Sep 08) at 11PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (CAT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 10th Sep)5ft (1.5m) 9s
Best Surf11PM (Thu 10th Sep)5ft (1.5m) 9s
Most Powerful11PM (Tue 8th Sep)5ft (1.6m) 14s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Fri afternoon, min 21°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

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

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
1
2
1
0
0
0
0
0
0
0
0
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)
2.4
ESE
9
2.5
ESE
9
2.3
ESE
10
2.1
ESE
9
1.7
ESE
9
1.6
ESE
9
1.5
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1
ESE
9
0.9
ESE
8
0.9
ESE
8
0.7
ESE
8
0.7
ESE
8
0.5
SSW
18
0.7
SSW
16
1.4
ESE
7
1.8
E
8
Wave Graph
Metric surfscale
Energy kJ
921
969
990
705
445
398
377
232
190
168
141
101
94
72
70
184
276
203
461
Wind (km/h)
25
SE
20
SE
20
SE
15
ESE
15
E
10
ENE
5
NE
15
ENE
20
ENE
10
ENE
15
E
15
E
15
ENE
15
ENE
15
ENE
20
ENE
20
ENE
20
E
20
E
Wind State
on
on
on
on
cross-on
cross-on
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
High Tide
2:39AM2.36m
2:57PM2.59m
3:13AM2.59m
3:31PM2.80m
3:44AM2.76m
4:02PM2.93m
4:14AM2.86m
4:31PM2.96m
4:42AM2.87m
4:59PM2.91m
5:09AM2.81m
5:25PM2.78m
Low Tide
8:31PM0.50m
8:44AM0.37m
9:07PM0.26m
9:19AM0.13m
9:40PM0.09m
9:51AM-0.03m
10:10PM-0.01m
10:21AM-0.10m
10:39PM-0.02m
10:51AM-0.09m
11:07PM0.03m
11:18AM0.01m
11:33PM0.14m
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:39
5:39
5:37
5:37
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:29
5:29
5:30
5:30
5:30
5:30
 mm
Temp °C
22
22
22
22
22
22
22
22
23
22
22
22
21
22
22
21
22
23
23
Feels °C
18
18
20
21
22
22
22
24
23
22
23
22
20
21
21
20
21
23
22
  • 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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