Surf Forecasts:
Marlin surf forecast from 13 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 6AM (local time) - 4.5ft (1.3m), 15s period, S swell with 723 kJ wave energy.
Best Forecast Surf Conditions for Marlin this week:
The most powerful waves expected at Marlin in the next 16 days are 1.3m 15s and forecast to arrive on Sunday (Aug 16) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Wednesday (Aug 19) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Sun 16th Aug) | 4.5ft (1.3m) 15s |
Table - best surf conditions forecast for Marlin over the next 16 days.
The Lowdown
Alright, Rusty here again, switching to feet and degrees Fahrenheit for you. Let's be straight. This forecast is a tough one. We've got a solid 16-day window but the conditions are fighting us every step of the way, so there's a massive gap of days where you wouldn't want to bother paddling out. The water is sitting at a warm 79°F, which is about average for this time of year, nothing special there.
Your main option is Marlin. It's a consistent beginner-friendly spot that's exposed to the south swell, so it catches a lot of energy. The swell direction from the south is a perfect match for what this break likes. For Thursday morning, August 13th, we're looking at a 3ft south swell with a long 13-second period pushing a solid 521 units of energy. Sounds good, right? Well, the wind is a cross-on from the SSE at 12 mph, making it choppy and messy. Thursday afternoon is a bit lighter at 9 mph, but still cross-on and choppy. It's a no-go.
Friday the 14th is the one to wait for. The morning is the standout of the entire outlook. The swell picks up to 4ft from the south, period holding at 13 seconds, with 662 units of energy. The wind swings light from the SE at 6 mph, just a light cross-on with small wind ripples. It's still not perfect, but it's the cleanest we're going to get, making for surf that is just about worthwhile. The afternoon is onshore and less appealing.
From Saturday the 15th right through to Friday August 28th, the story is grim. Winds are either onshore or cross-onshore, often at 9-12 mph, with short periods dropping to 6-8 seconds on some days. The swell height fluctuates between 3ft and 5ft, but the quality is poor to marginal at best. The energy drops from moderate to weak levels in the second week, bottoming out around 93 units. It's a long, quiet stretch where the surf looks more suited for a kite than a paddle. For a consistent break like this, it's rough, but not unheard of to have a blank run.
So, if you're desperate, aim for Friday morning, August 14th at Marlin. It's the only window that's even close. Otherwise, sit this one out. Forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Fri morning, min 23°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Tue night. Warm (max 26°C on Sun morning, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | S 13 | S 12 | S 13 | S 13 | S 12 | S 12 | S 13 | ESE 12 | S 16 | S 14 | S 14 | S 13 | S 12 | S 12 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 212 | 513 | 511 | 480 | 305 | 243 | 350 | 288 | 706 | 694 | 637 | 423 | 300 | 285 | 340 | 316 | 371 | 382 | 322 | 338 | 281 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | on | cross-on | on | on | on | cross-on | on | on | on | on | cross-on | on | on | on | on | on | on |
High Tide | 4:19PM2.15m | 4:27AM2.31m | 4:56PM2.12m | 5:06AM2.26m | 5:31PM2.04m | 5:43AM2.13m | 6:05PM1.93m | 6:21AM1.97m | 6:40PM1.80m | 7:00AM1.77m | 7:18PM1.65m | 7:46AM1.58m | 8:05PM1.51m | ||||||||
Low Tide | 10:09AM-0.08m | 10:20PM0.14m | 10:48AM-0.03m | 10:56PM0.17m | 11:24AM0.07m | 11:32PM0.23m | 11:59AM0.21m | 00:08AM0.33m | 12:33PM0.38m | 00:46AM0.45m | 1:09PM0.55m | 1:29AM0.59m | 1:54PM0.72m | 2:28AM0.71m | |||||||
 |  |  | | | | | |  | | |  |  | | | | | | | | | |
 | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — |
 | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | 4 | 4 | 9 | 4 | 3 | 13 | 4 | 2 | 2 |
Temp °C | 24 | 24 | 23 | 25 | 25 | 24 | 25 | 25 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 24 |
Feels °C | 23 | 24 | 24 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 26 | 24 | 24 | 24 | 24 | 23 | 25 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | E 8 | S 12 | S 13 | S 13 | S 12 | ESE 9 | S 13 | ESE 12 | S 16 | S 14 | S 14 | S 13 | S 12 | S 12 | S 11 | S 11 | S 11 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | 121 | 513 | 511 | 480 | 305 | 129 | 350 | 288 | 706 | 694 | 637 | 423 | 300 | 285 | 94 | 94 | 94 | 382 | 322 | 338 | 281 |
Swell 2 Height (m) Direction Period (s) | S 13 | E 8 | ESE 8 | ESE 8 | ESE 9 | S 12 | ESE 9 | S 13 | — | ESE 12 | ESE 12 | ESE 11 | E 6 | ESE 11 | ESE 10 | ESE 10 | SE 10 | S 11 | S 10 | ENE 6 | ENE 6 |
| kJ | 212 | 137 | 119 | 118 | 123 | 243 | 62 | 212 | — | 203 | 196 | 143 | 35 | 65 | 67 | 36 | 25 | 86 | 52 | 16 | 8 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | S 15 | — | S 18 | S 16 | S 15 | ESE 11 | SSE 18 | — | — | — | — | ESE 11 | — | — | — | — | — | ENE 6 | S 10 | S 10 |
| kJ | 17 | 112 | — | 57 | 251 | 218 | 71 | 104 | — | — | — | — | 105 | — | — | — | — | — | 17 | 33 | 18 |
Wind waves Height (m) Direction Period (s) | SSE 7 | — | — | — | — | ENE 3 | E 4 | E 4 | ESE 13 | ESE 5 | ESE 5 | E 6 | — | E 6 | SE 7 | SE 8 | SE 8 | — | ENE 6 | ENE 7 | ENE 7 |
| kJ | 203 | — | — | — | — | 3 | 7 | 13 | 440 | 49 | 40 | 41 | — | 35 | 340 | 316 | 371 | — | 34 | 38 | 29 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 817 | 904 | 89 | 77 | 1304 | 172 | 354 | 979 | 1397 | 925 | 1500 | 338 | 925 | 904 | 904 | 904 | 904 | 338 | 315 | 904 | 354 |
Best forecast wave conditions in Bahia - Norte | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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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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