Surf Forecasts:
Marlin surf forecast from 18 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 3PM (local time) - 7ft (2.1m), 8s period, SE swell with 515 kJ wave energy.
Best Forecast Surf Conditions for Marlin this week:
The most powerful waves expected at Marlin in the next 16 days are 2.1m 8s and forecast to arrive on Tuesday (Aug 18) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 7s period and expected on Saturday (Aug 22) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Tue 18th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Marlin over the next 16 days.
The Lowdown
Alright, Rusty here again. Let me tell you what's cookin' – or rather, what ain't cookin' – for the Marlin stretch over the next couple of weeks.
I'm gonna lay it on you straight: it's a sorry run. The whole sixteen-day window is stamped "poor surf conditions," so don't get your hopes up. There isn't one standout day, not one window where I'd say, "Drop everything and go." It's a long, flat, frustrating stretch with no real quality on offer.
We kick off on Tuesday, the 18th of August, with the wind howling from the southeast at 16 mph and a swell from the ESE with a short 8-second period. The water's a warm 80°, which is about what you'd expect for this time of year, but that's the only good news. The combined wave energy is moderate (669), but with that onshore wind, it's just a messy, choppy pile of nothing.
Wednesday the 19th and Thursday the 20th are more of the same: smaller swell, still onshore wind, and no quality. The energy drops from 441 down to 286. It's just not worth your time.
Friday the 21st and Saturday the 22nd see the wind ease a touch, but the swell shrinks under three feet. The energy drops into the weak range (113 on Saturday). You might find some knee-high dribble if you're bored, but it ain't surf.
From Sunday the 23rd all the way through Monday the 31st, it's a long, grim stretch. Swell heights barely top three feet, periods are short, and the wind is never your friend. The energy levels stay weak, under 300 most days. There's a little tease on the 26th and 27th with a long-period 15-second south swell giving us energy of 412 and 631, but the swell height is only 3 to 3 feet and it's cross-onshore. That's a real heartbreaker.
Into the first week of September, we see the swell nudge back up to about five feet on the 1st, but it's still short-period (7 seconds) and cross-onshore. The energy is moderate (295), but the quality's just not there. This setup looks more interesting for a kite surfer than a paddle surfer.
So here's the plain truth: there are no good surf options in this entire sixteen-day window. For Marlin, a run like this is a bit more normal – the area can go quiet. Keep the board handy in case something shifts, but for now, it's a waiting game.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue morning. Warm (max 25°C on Wed morning, min 23°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | SE 8 | ESE 8 | ESE 7 | ESE 8 | ESE 8 | SE 8 | ESE 8 | E 6 | E 6 | SE 7 | ESE 7 | SE 7 | E 7 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 565 | 515 | 381 | 363 | 297 | 307 | 270 | 274 | 248 | 172 | 165 | 120 | 57 | 81 | 79 | 60 | 54 | 44 | 38 | 40 | 130 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | on | on | on | on | cross-on | on | on | cross-on | cross | cross-on | cross-on | on | on | on | on | cross-on | on |
High Tide | 7:18PM1.65m | 7:46AM1.58m | 8:05PM1.51m | 8:49AM1.42m | 9:13PM1.39m | 10:25AM1.34m | 10:54PM1.37m | 12:08PM1.39m | 00:21AM1.46m | 1:10PM1.52m | 1:15AM1.61m | 1:51PM1.66m | 1:55AM1.78m | ||||||||
Low Tide | 1:09PM0.55m | 1:29AM0.59m | 1:54PM0.72m | 2:28AM0.71m | 3:04PM0.85m | 4:06AM0.78m | 4:58PM0.88m | 5:49AM0.73m | 6:24PM0.80m | 6:54AM0.60m | 7:16PM0.67m | 7:39AM0.47m | 7:55PM0.54m | ||||||||
 | |  |  | |  |  | | | | | | | | | | | | | | | |
 | 5:41 | — | — | 5:41 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:37 | — | — |
 | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — |
mm | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 24 | 25 | 25 | 24 | 25 | 24 | 24 | 25 | 24 | 23 | 25 | 25 | 25 | 26 | 26 | 24 | 25 | 25 | 24 |
Feels °C | 23 | 22 | 24 | 24 | 25 | 24 | 23 | 23 | 23 | 24 | 23 | 22 | 24 | 24 | 24 | 25 | 25 | 24 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 12 | SE 8 | SE 8 | SE 8 | S 10 | SSE 9 | SE 8 | S 13 | SE 8 | ESE 8 | ESE 8 | SE 8 | ENE 7 | ESE 7 | ESE 7 | SE 7 | ESE 7 | SE 7 | E 7 | E 7 |
| kJ | 89 | 137 | 381 | 363 | 297 | 28 | 121 | 274 | 3 | 57 | 165 | 120 | 57 | 9 | 35 | 42 | 54 | 44 | 38 | 40 | 130 |
Swell 2 Height (m) Direction Period (s) | S 11 | ESE 10 | S 11 | S 10 | S 10 | SE 13 | SE 12 | S 9 | S 9 | S 12 | SE 12 | ENE 7 | E 4 | S 10 | S 11 | S 10 | ENE 7 | E 6 | E 7 | S 8 | S 10 |
| kJ | 38 | 10 | 116 | 75 | 50 | 7 | 6 | 6 | 2 | 3 | 6 | 9 | 13 | 2 | 3 | 2 | 45 | 20 | 38 | 1 | 7 |
Swell 3 Height (m) Direction Period (s) | ESE 10 | SE 12 | — | — | — | S 13 | S 13 | SE 12 | S 12 | S 9 | — | S 11 | ENE 6 | S 12 | S 10 | — | S 10 | S 9 | S 8 | S 10 | ESE 7 |
| kJ | 10 | 6 | — | — | — | 4 | 3 | 6 | 3 | 2 | — | 2 | 8 | 3 | 2 | — | 2 | 2 | 1 | 2 | 5 |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 8 | — | — | — | ESE 8 | ESE 8 | — | ESE 8 | ESE 7 | — | ENE 6 | ENE 4 | ESE 8 | E 6 | E 6 | — | SE 7 | — | SE 7 | — |
| kJ | 565 | 515 | — | — | — | 307 | 270 | — | 248 | 172 | — | 32 | 16 | 81 | 79 | 60 | — | 39 | — | 37 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 904 | 904 | 315 | 315 | 925 | 315 | 316 | 1580 | 354 | 157 | 1304 | 318 | 157 | 1455 | 354 | 952 | 979 | 338 | 315 | 992 | 992 |
Best forecast wave conditions in Bahia - Norte | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Marlin Surf forecast
The above surf forecast table for Marlin provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Marlin can be found by selecting the local surf guide option on the grey menu. Our Marlin 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 (Marlin) 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 Marlin 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.
Are you planning a holiday in Bahia - Norte? If you are looking for accommodation near Marlin, camping, hotels and holiday cottages in Bahia - Norte, consider staying in Conde which is 8 km (5 miles) away. Other places in and around Bahia - Norte where you can find information about places to rent, and car hire include Esplanada which is 44 km (27 miles) away, Rio Real, Estancia and Entre Rios.
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