
Surf Forecasts:
Backdoor surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 16 Aug, 2AM (local time) - 7ft (2.1m), 10s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 12 Aug, 2AM (local time) - 15ft (4.5m), 10s period, SSE swell with 3,860 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 2AM (local time) - 3ft (0.9m), 6s 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 Sunday (Aug 09) at 2AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.4m and 12s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Backdoor in the next 16 days are 4.5m 10s and forecast to arrive on Wednesday (Aug 12) at 2AM. Winds are predicted to be onshore 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 (Aug 09) at 11PM.
| Wave Type | Time (CAT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 9th Aug) | 3ft (0.9m) 6s |
| Best Surf | 2AM (Sun 16th Aug) | 7ft (2.1m) 10s |
| Most Powerful | 2AM (Wed 12th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Backdoor over the next 16 days.
Short Range ForecastModerate rain (total 17mm), heaviest on Mon afternoon. Warm (max 23°C on Sun morning, min 19°C on Tue afternoon). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 25mm), heaviest during Tue night. Warm (max 20°C on Tue night, min 18°C on Tue night). Winds decreasing (strong winds from the SSE on Tue night, moderate winds from the SSW by Thu night). | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | ESE 6 | SSW 16 | SSW 15 | ESE 9 | SSW 15 | ESE 9 | SSW 11 | SSW 11 | SSW 10 | SSE 10 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 11 |
Wave Graph | |||||||||||||||||||
61 | 97 | 84 | 82 | 89 | 86 | 452 | 1034 | 800 | 3860 | 2321 | 2011 | 2434 | 1791 | 1419 | 951 | 660 | 573 | 1359 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 00:27AM1.83m | 1:10PM1.94m | 1:55AM2.05m | 2:19PM2.22m | 2:47AM2.30m | 3:07PM2.50m | 3:28AM2.53m | 3:47PM2.72m | 4:05AM2.70m | 4:24PM2.87m | 4:38AM2.80m | 4:58PM2.93m | |||||||
Low Tide | 6:49AM0.97m | 7:34PM0.79m | 8:05AM0.72m | 8:34PM0.53m | 8:54AM0.44m | 9:19PM0.30m | 9:35AM0.20m | 9:58PM0.13m | 10:12AM0.03m | 10:34PM0.03m | 10:47AM-0.06m | 11:07PM0.02m | |||||||
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
5:16 | — | 5:17 | — | — | 5:17 | — | — | 5:19 | — | — | 5:19 | — | — | 5:19 | — | — | 5:20 | — | |
mm | — | — | — | — | — | 4 | 8 | 1 | 4 | 17 | 2 | 1 | 2 | 1 | — | 2 | — | — | 1 |
Temp °C | 21 | 23 | 23 | 22 | 23 | 23 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 19 |
Feels °C | 20 | 21 | 20 | 20 | 23 | 22 | 21 | 20 | 18 | 16 | 11 | 11 | 12 | 11 | 12 | 13 | 15 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | ESE 6 | ESE 8 | ESE 9 | NNE 4 | ESE 9 | SSW 11 | SSW 11 | SSW 10 | NNE 7 | SSW 14 | SSW 14 | S 25 | SSW 12 | SSW 11 | SSW 11 | S 11 | ESE 11 | SE 11 |
59 | 43 | 68 | 82 | 18 | 86 | 452 | 1034 | 800 | 9 | 165 | 158 | 12 | 29 | 49 | 71 | 86 | 143 | 1359 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 16 | SSW 15 | SSW 14 | ESE 9 | NNE 5 | ESE 9 | ESE 9 | ESE 9 | — | NNE 7 | — | S 25 | SW 22 | S 15 | SSW 20 | SSW 21 | S 19 | SSW 18 |
57 | 97 | 84 | 73 | 65 | 12 | 64 | 64 | 61 | — | 5 | — | 12 | 19 | 38 | 78 | 150 | 192 | 104 | |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 12 | SSW 11 | S 8 | SSW 15 | SSW 14 | NNE 4 | NNE 5 | NNE 6 | — | — | — | — | S 16 | SSW 22 | SSW 24 | SSW 18 | S 11 | SSW 15 |
61 | 52 | 23 | 5 | 89 | 71 | 4 | 10 | 12 | — | — | — | — | 5 | 45 | 55 | 60 | 58 | 72 | |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | NNE 4 | NNE 4 | S 3 | — | — | — | SSE 10 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SE 10 | SE 9 | SE 9 | SE 9 | — |
— | — | 9 | 36 | 21 | 4 | — | — | — | 3860 | 2321 | 2011 | 2434 | 1791 | 1419 | 951 | 660 | 573 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 131 | 641 | 822 | 0 | 1032 | 795 | 822 | 1168 | 848 | 1048 | 795 | 674 | 736 | 795 | 7 | 15 | 9 | 8 |
Best forecast wave conditions in Inhambane | |||||||||||||||||||
Best forecast wave conditions in Mozambique | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











