Backdoor Surf Break

Lat Long: 23.93° S 35.53° E

Backdoor Surf Forecast and Surf Report

Issued: 1 pm 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor sea temperature is
24.8°C
1.3° 

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


Backdoor surf forecast from 20 Sep 2026:

  • Best quality surf: Saturday 26 Sep, 5AM (local time) - 3.5ft (1.1m), 15s period, S swell with cross-offshore winds.
  • Most powerful swell: Saturday 26 Sep, 11AM (local time) - 4.5ft (1.3m), 13s period, S swell with 609 kJ wave energy.
  • Next surfable swell (1★+): Thursday 24 Sep, 8AM (local time) - 2ft (0.6m), 14s period with S 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 24) at 8AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.7m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Backdoor in the next 16 days are 1.3m 13s and forecast to arrive on Saturday (Sep 26) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Sep 27) at 8PM.

Wave TypeTime (CAT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 24th Sep)2ft (0.6m) 14s
Best Surf 5AM (Sat 26th Sep)3.5ft (1.1m) 15s
Most Powerful11AM (Sat 26th Sep)4.5ft (1.3m) 13s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Sun afternoon, min 22°C on Sun afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Thu night. Warm (max 23°C on Wed afternoon, min 22°C on Wed afternoon). Wind will be generally light.

Sun
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
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
0
1
0
0
0
0
0
2
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
SSE
9
1.5
SE
9
1.6
SE
8
1.4
SE
8
1.3
ESE
8
1.3
ESE
8
1.2
ESE
8
1
ESE
8
0.4
S
18
0.5
S
17
0.6
S
16
0.6
S
14
0.8
SSE
11
0.9
SSE
10
0.8
SSE
10
0.8
SSE
9
1
S
15
1.3
S
13
1.2
S
12
1
S
12
Wave Graph
Metric surfscale
Energy kJ
354
320
338
274
230
222
193
140
101
138
178
150
158
143
107
94
459
609
453
280
Wind (km/h)
20
SE
20
SE
15
ESE
15
SE
15
SE
20
SE
20
SE
20
SE
10
ENE
15
ENE
10
NE
15
SE
20
SSE
25
S
20
SSE
20
SSE
10
ENE
15
NE
25
NE
25
NNE
Wind State
on
on
on
on
on
on
on
on
cross-on
cross
cross
on
on
cross-on
cross-on
on
cross-on
cross
cross
cross-off
High Tide
00:48AM1.54m
1:21PM1.70m
1:43AM1.80m
1:57PM1.98m
2:11AM2.06m
2:24PM2.25m
2:36AM2.31m
2:50PM2.50m
3:01AM2.52m
3:15PM2.71m
3:27AM2.70m
3:42PM2.86m
3:53AM2.82m
Low Tide
5:56PM1.30m
7:03AM1.21m
7:35PM1.06m
7:47AM0.94m
8:06PM0.81m
8:15AM0.69m
8:33PM0.57m
8:41AM0.44m
8:58PM0.35m
9:07AM0.23m
9:24PM0.17m
9:33AM0.06m
9:50PM0.04m
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
clear
clear
clear
clear
rain showers
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:28
5:26
5:26
5:24
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:32
5:32
5:32
5:34
5:34
5:34
5:35
 mm
3
Temp °C
23
22
22
22
23
23
23
22
22
23
22
22
23
23
23
22
22
23
23
22
Feels °C
22
21
22
22
23
22
22
21
22
23
21
24
22
24
22
20
23
23
22
20
  • 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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