Surf Forecasts:
Mar Aberto surf forecast from 18 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 6AM (local time) - 6.5ft (2.0m), 7s period, SE swell with 412 kJ wave energy.
Best Forecast Surf Conditions for Mar Aberto this week:
The most powerful waves expected at Mar Aberto in the next 16 days are 2.0m 7s and forecast to arrive on Wednesday (Aug 19) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 12s period and expected on Wednesday (Aug 19) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Wed 19th Aug) | 6.5ft (2.0m) 7s |
Table - best surf conditions forecast for Mar Aberto over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Warm (max 26°C on Tue afternoon, min 23°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sun morning, min 24°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 148 | 137 | 176 | 212 | 245 | 246 | 226 | 172 | 167 | 156 | 138 | 111 | 110 | 91 | 131 | 131 | 198 | 194 | 230 | 178 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 7:57PM1.80m | 8:23AM1.68m | 8:46PM1.65m | 9:26AM1.51m | 9:55PM1.54m | 10:55AM1.43m | 11:25PM1.53m | 12:28PM1.47m | 00:44AM1.61m | 1:29PM1.59m | 1:38AM1.75m | 2:12PM1.73m | 2:19AM1.91m | |||||||
Low Tide | 2:09AM0.60m | 2:30PM0.70m | 3:10AM0.72m | 3:35PM0.83m | 4:36AM0.78m | 5:06PM0.87m | 6:06AM0.74m | 6:29PM0.81m | 7:12AM0.64m | 7:26PM0.70m | 7:59AM0.50m | 8:08PM0.57m | ||||||||
 |  |  | | | |  |  | | |  | | | | | | | | | | |
 | — | — | 5:26 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — |
 | 5:21 | — | — | 5:21 | — | — | 5:21 | — | — | 5:21 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — |
mm | — | 4 | 2 | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 26 | 26 | 25 | 27 | 26 | 26 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | NNE 11 | NNE 11 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | SE 8 | E 7 | NE 10 | NNE 9 | NNE 9 |
| kJ | 12 | 12 | 10 | 10 | 10 | 9 | 8 | 9 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 31 | 139 | 4 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | ESE 10 | S 12 | S 12 | N 10 | N 11 | N 9 | N 9 | S 13 | S 13 | S 12 | N 9 | N 8 | S 11 | N 8 | N 8 | NE 9 | N 11 | — | S 9 |
| kJ | 7 | 10 | 26 | 10 | 8 | 2 | 7 | 2 | 4 | 3 | 3 | 6 | 6 | 2 | 5 | 5 | 3 | 2 | — | 2 |
Swell 3 Height (m) Direction Period (s) | N 11 | NE 8 | N 12 | — | — | — | S 16 | S 14 | N 9 | N 9 | N 9 | S 12 | — | — | N 11 | N 11 | N 10 | — | — | — |
| kJ | 21 | 3 | 3 | — | — | — | 5 | 4 | 2 | 2 | 2 | 3 | — | — | 2 | 2 | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 |
| kJ | 148 | 137 | 176 | 212 | 245 | 246 | 226 | 172 | 167 | 156 | 138 | 111 | 110 | 91 | 131 | 131 | 198 | 194 | 230 | 178 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1563 | 978 | 978 | 1585 | 978 | 1018 | 2241 | 1001 | 819 | 1966 | 982 | 819 | 2248 | 1018 | 66 | 1563 | 3 | 1563 | 1964 | 1018 |
Best forecast wave conditions in Rio Grande Do Norte | ||||||||||||||||||||
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 Mar Aberto 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 Mar Aberto Surf forecast
The above surf forecast table for Mar Aberto provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mar Aberto can be found by selecting the local surf guide option on the grey menu. Our Mar Aberto 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 (Mar Aberto) 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 Mar Aberto 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.
Mar Aberto is 16 km (10 miles) from Canguaretama. If you plan a holiday in Rio Grande Do Norte, look for hotels and other accommodation in Canguaretama. Canguaretama has rooms for a wide range of budgets as well as car hire and transport links.
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