
Surf Forecasts:
Back Door surf forecast from 1 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 3AM (local time) - 3.5ft (1.1m), 8s period, ENE swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 12AM (local time) - 4.5ft (1.3m), 8s period, E swell with 223 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 9PM (local time) - 3ft (0.9m), 7s period with E swell.
Best Forecast Surf Conditions for Back Door this week:
The surf forecast for Back Door over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 01) at 9PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.7m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Back Door in the next 16 days are 1.3m 8s and forecast to arrive on Wednesday (Aug 05) at 12AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 1st Aug) | 3ft (0.9m) 7s |
| Best Surf | 3AM (Tue 4th Aug) | 3.5ft (1.1m) 8s |
| Most Powerful | 12AM (Wed 5th Aug) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Back Door over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's size up the surf ahead.
Right off the bat, it’s a tough watch. There’s a long, flat spell stretching from now until mid-August. The first real chance of a wave doesn’t pop up until the 14th, and even then, it’s not a sure thing.
For the next week and a half, forget it. We’ve got tiny, short-period windswell, mostly onshore or cross-onshore, with poor wave quality. There are a few glassy moments here and there, like early Monday the 3rd or Thursday the 6th, but the swell is weak and disorganised, with combined energy in the low hundreds (moderate energy). Periods are short at 7-8 seconds, so it’s just not worth suiting up. Honestly, for a few days, the setup looks more interesting for kite surfing than paddle surfing with the cross-shore winds and small, choppy waves.
Now, let’s talk about the one bright spot.
The standout is Friday morning, the 14th of August, at Back Door. This is the one to aim for. The swell finally gets some punch, pushing 5 ft from the ESE with a proper long period of 13 seconds – that’s groundswell energy. The combined energy hits 838 (strong wave energy), which is a real step-up. The early wind is light, from the north at just 5 km/h, giving us a cross-shore, so the waves will be reasonably clean. The ESE direction is a good angle for this exposed point break. With a long-period swell, a point break is the place to be – it’ll wrap in nicely and hold its shape. The only catch is that this spot is "inconsistent" and can get crowded, so don’t bet the farm on it, but it’s your best shot. Water temp is around 79°F, with an anomaly of 2°F, so it’s pretty much normal for this time of year.
Saturday the 15th and Sunday the 16th are a letdown. The swell drops to 5 ft and 3 ft, period is still decent at 12-11 seconds, but the wind turns more onshore, and the energy drops to 695 and 302. It’s surfable, but the Friday morning magic is gone.
So, here’s the plan: wait it out. If you’re itching for a paddle, aim for the morning of Friday the 14th. It’s not a classic, but it’s the only real wave in this forecast.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Sat night. Warm (max 25°C on Mon morning, min 20°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue morning. Warm (max 26°C on Thu morning, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
AM | PM | 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) | E 7 | E 7 | ENE 7 | SSE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | E 8 | SE 8 | E 8 | ESE 8 | ESE 8 | ENE 8 | ESE 8 | E 8 | E 7 | E 7 | E 7 | ENE 7 |
Wave Graph | |||||||||||||||||||||
78 | 81 | 63 | 105 | 130 | 115 | 131 | 155 | 143 | 186 | 158 | 223 | 114 | 112 | 92 | 66 | 110 | 127 | 152 | 127 | 153 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | cross-off | on | glassy | glassy | on | glassy | cross-on | on | glassy | glassy | on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:20PM1.87m | 5:28AM1.98m | 5:55PM1.83m | 6:06AM1.91m | 6:33PM1.76m | 6:49AM1.80m | 7:18PM1.67m | 7:43AM1.68m | 8:14PM1.57m | 8:53AM1.56m | 9:27PM1.50m | 10:23AM1.52m | 10:54PM1.51m | ||||||||
Low Tide | 11:10AM0.16m | 11:17PM0.32m | 11:43AM0.21m | 11:52PM0.36m | 12:20PM0.30m | 00:33AM0.42m | 1:03PM0.41m | 1:23AM0.50m | 1:59PM0.53m | 2:30AM0.56m | 3:17PM0.64m | 4:02AM0.57m | 4:54PM0.66m | ||||||||
5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:27 | — | |
mm | 2 | 2 | 6 | 2 | 2 | 4 | 1 | — | — | 1 | 2 | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 23 | 24 | 21 | 24 | 24 | 22 | 25 | 24 | 23 | 24 | 24 | 23 | 24 | 25 | 23 | 26 | 25 | 24 | 26 | 26 | 24 |
Feels °C | 25 | 26 | 23 | 26 | 25 | 24 | 25 | 24 | 25 | 26 | 25 | 25 | 25 | 26 | 25 | 28 | 26 | 27 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | ENE 7 | SSE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | E 8 | SE 8 | E 8 | ESE 8 | ESE 8 | ENE 8 | ESE 8 | E 8 | E 7 | E 7 | E 7 | SE 13 |
78 | 81 | 63 | 105 | 130 | 115 | 131 | 155 | 143 | 186 | 158 | 223 | 114 | 112 | 92 | 66 | 110 | 127 | 152 | 127 | 7 | |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | SSE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | SE 8 | ENE 8 | SE 10 | ENE 8 | ENE 8 | ESE 8 | ENE 8 | SE 9 | SE 8 | S 16 | SE 9 | SSE 13 |
6 | 26 | 50 | 69 | 74 | 74 | 97 | 78 | 94 | 142 | 116 | 52 | 94 | 92 | 76 | 64 | 21 | 18 | 5 | 3 | 18 | |
Swell 3 Height (m) Direction Period (s) | ESE 9 | ESE 10 | ESE 9 | ESE 8 | SE 12 | SE 11 | S 14 | SE 14 | SE 13 | SE 11 | SSE 11 | — | SSE 10 | SE 10 | SE 9 | SE 9 | — | S 11 | S 10 | SE 10 | S 10 |
8 | 18 | 16 | 28 | 5 | 5 | 4 | 7 | 27 | 33 | 47 | — | 39 | 25 | 22 | 22 | — | 2 | 2 | 4 | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ENE 4 | — | — | ENE 7 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | 153 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 529 | 548 | 0 | 0 | 529 | 0 | 0 | 529 | 0 | 529 | 529 | 0 | 0 | 972 | 9 | 0 | 948 | 961 | 221 | 948 | 961 |
Best forecast wave conditions in Bahia - Sul | |||||||||||||||||||||
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Information about the Back Door Surf forecast
The above surf forecast table for Back Door provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Back Door can be found by selecting the local surf guide option on the grey menu. Our Back Door 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 (Back Door) 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 Back Door 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.











