Surf Forecasts:
Saco da Mãe surf forecast from 19 Sep 2026:
- Best quality surf: Sunday 20 Sep, 3AM (local time) - 6.5ft (2.0m), 8s period, E swell with glassy winds.
- Most powerful swell: Thursday 24 Sep, 3AM (local time) - 6.5ft (2.0m), 16s period, SSE swell with 1,818 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 3AM (local time) - 6.5ft (2.0m), 8s period with E swell.
Best Forecast Surf Conditions for Saco da Mãe this week:
The surf forecast for Saco da Mãe over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 3AM. The primary swell is predicted to be 2.0m and 8s period with a secondary swell of 1.7m and 8s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Saco da Mãe in the next 16 days are 2.0m 16s and forecast to arrive on Thursday (Sep 24) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Wednesday (Sep 23) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 20th Sep) | 6.5ft (2.0m) 8s |
| Best Surf | 3AM (Sun 20th Sep) | 6.5ft (2.0m) 8s |
| Most Powerful | 3AM (Thu 24th Sep) | 6.5ft (2.0m) 16s |
Table - best surf conditions forecast for Saco da Mãe over the next 16 days.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sun night. Warm (max 32°C on Mon morning, min 20°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 16mm), heaviest on Thu afternoon. Warm (max 27°C on Tue morning, min 20°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||
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 7 | ESE 7 | ESE 7 | E 8 | E 8 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 9 | ESE 8 | S 14 | S 12 | S 15 | S 15 | SSE 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 247 | 192 | 225 | 451 | 624 | 310 | 202 | 190 | 78 | 58 | 109 | 115 | 103 | 75 | 96 | 894 | 1154 | 1138 | 811 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-on | glassy | cross-off | cross-on | on | cross-on | cross | cross-on |
High Tide | 7:09AM0.67m | 12:08PM0.74m | 6:04PM0.69m | 12:32PM0.84m | 00:01AM0.70m | 12:55PM0.93m | 00:27AM0.82m | 1:18PM1.01m | 00:50AM0.94m | 1:39PM1.08m | 1:12AM1.05m | 1:57PM1.12m | 1:35AM1.14m | ||||||
Low Tide | 1:55AM0.41m | 8:38AM0.66m | 3:37PM0.65m | 10:16PM0.57m | 3:52AM0.39m | 5:18PM0.57m | 5:14AM0.30m | 6:06PM0.47m | 6:07AM0.19m | 6:41PM0.38m | 6:49AM0.08m | 7:14PM0.29m | 7:27AM-0.00m | 7:46PM0.21m | |||||
 |  |  |  | |  | | | |  |  |  |  | | |  | | | | |
 | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — |
mm | 1 | — | — | — | — | 1 | 21 | — | — | — | — | 1 | — | 1 | 4 | 5 | 1 | 4 | 8 |
Temp °C | 20 | 22 | 22 | 21 | 25 | 26 | 23 | 32 | 32 | 26 | 27 | 26 | 23 | 22 | 20 | 20 | 21 | 21 | 21 |
Feels °C | 20 | 23 | 23 | 22 | 27 | 29 | 25 | 33 | 34 | 29 | 30 | 29 | 26 | 22 | 21 | 22 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 10 | ESE 7 | S 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | SSE 7 | S 15 | S 15 | SSE 14 |
| kJ | 98 | 192 | 44 | 356 | 344 | 310 | 202 | 190 | 78 | 58 | 109 | 115 | 103 | 75 | 57 | 131 | 1154 | 1138 | 811 |
Swell 2 Height (m) Direction Period (s) | — | S 10 | S 14 | S 9 | SSE 12 | SSE 12 | S 12 | S 12 | S 11 | S 11 | S 10 | S 9 | SSW 4 | SSW 5 | S 14 | SSE 16 | SSE 6 | SE 6 | SE 6 |
| kJ | — | 67 | 4 | 25 | 26 | 28 | 11 | 10 | 2 | 2 | 2 | 2 | 2 | 5 | 96 | 547 | 103 | 96 | 120 |
Swell 3 Height (m) Direction Period (s) | — | S 15 | — | SSE 13 | S 9 | — | — | — | — | SE 14 | S 12 | S 12 | S 11 | S 10 | S 7 | S 12 | E 8 | SE 11 | ESE 11 |
| kJ | — | 4 | — | 16 | 15 | — | — | — | — | 8 | 3 | 3 | 3 | 2 | 23 | 172 | 33 | 30 | 22 |
Wind waves Height (m) Direction Period (s) | ESE 7 | — | ESE 7 | E 8 | E 8 | — | NNE 3 | — | — | — | NNW 3 | SW 4 | — | — | — | S 12 | — | — | — |
| kJ | 247 | — | 225 | 451 | 624 | — | 8 | — | — | — | 1 | 7 | — | — | — | 894 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 39 | 18 | 39 | 18 | 0 | 0 | 35 | 0 | 0 | 1 | 1 | 5 | 0 | 5 | 312 | 15 | 19 | 5 | 21 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Saco da Mãe 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.
Information about the Saco da Mãe Surf forecast
The above surf forecast table for Saco da Mãe provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Saco da Mãe can be found by selecting the local surf guide option on the grey menu. Our Saco da Mãe 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 (Saco da Mãe) 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 Saco da Mãe 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.
Saco da Mãe is 3 km (2 miles) from Ubatuba. If you plan a holiday in São Paulo, look for hotels and other accommodation in Ubatuba. Ubatuba has rooms for a wide range of budgets as well as car hire and transport links.
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