- Forecast
- Maps
- Live
- Weather State
- Spot Information
Back Door Surf Forecast
/ Bahia – Sul (17 surf breaks) /
Surf Forecasts:
Back Door surfForecast / Bahia – Sul / Brazil
48hr Weather and Surf, issued 2 pm Friday 20 Mar 2026 -03Forecast update in hr min s Forecast update imminent
Back Door surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Back Door sea temperature is
28.3° C
(Which is normal for this time of year)How big are the waves at Back Door today?
The current surf forecast for Back Door at 9PM is: 0.8m 4s primary swell from a Northeast direction and 0.4m 8s secondary swell from a Southeast direction, 0.2m 8s secondary swell from a South-southeast direction (forecast issued at 02:00pm March 20). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Mar) | - | - |
| Afternoon (20 Mar) | 1.5ft (0.4m) | 8s |
| Evening (20 Mar) | 2.5ft (0.8m) | 4s |
Table - waves today at Back Door. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 5 | 5 | 5 | 10 | 10 | 11 | 5 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 17 | 24 | 17 | 21 | 23 | 26 | 33 | 34 | 29 | 32 | 40 | 41 | 56 | 54 | 52 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 46 | 45 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross- off | cross- off |
High Tide / height (m) | 4:26PM 2.19 | 4:47AM 2.05 | 5:07PM 2.09 | 5:24AM 1.94 | 5:51PM 1.93 | 6:06AM 1.80 | ||||||||||||||||||
Low Tide / height (m) | 10:15AM 0.06 | 10:38PM 0.04 | 10:51AM 0.09 | 11:15PM 0.17 | 11:31AM 0.16 | 11:56PM 0.34 | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:39 | - |
| Sunset | - | 5:46 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - |
 | |  | | |  |  | | | | |  | | | |  | | | | | |  |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 7 | 8 |
| Temp. °C | 29 | 28 | 27 | 26 | 25 | 23 | 23 | 28 | 29 | 29 | 27 | 26 | 26 | 25 | 24 | 27 | 29 | 28 | 27 | 27 | 26 | 24 | 22 | 22 |
| Feels °C (?) | 30 | 29 | 29 | 29 | 28 | 26 | 26 | 31 | 29 | 30 | 30 | 29 | 30 | 28 | 27 | 30 | 30 | 29 | 29 | 30 | 29 | 28 | 25 | 25 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Back Door surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest