
Surf Forecasts:
Marlin surf forecast from 9 Aug 2026:
- Most powerful swell: Friday 14 Aug, 3AM (local time) - 4ft (1.2m), 13s period, S swell with 521 kJ wave energy.
Best Forecast Surf Conditions for Marlin this week:
The most powerful waves expected at Marlin in the next 16 days are 1.2m 13s and forecast to arrive on Friday (Aug 14) at 3AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3AM (Fri 14th Aug) | 4ft (1.2m) 13s |
Table - best surf conditions forecast for Marlin over the next 16 days.
The Lowdown
Right, let’s have a look at the next couple of weeks, yeah? It’s a bit of a funny one, to be honest. The ocean’s got some size kicking around, but it’s not doing us any favours at Marlin (Big Island). The energy’s there, but the wind and the direction are just making a mess of things. We’re looking at a patchy run ahead.
The first part of the week is basically a write-off. We’ve got some weak, short-period swell in the water, but it’s coming from the east and we’ve got a cross-onshore breeze on it. It’s just lumpy and unorganised. The combined energy is only around 114 to 247, which is weak to moderate, and it’s just not translating into anything rideable. The swell is under 3ft, so it’s not even like there’s a sneaky wave to be found. It’s flat and messy.
We might see a bit of a pulse from the south around the 13th and 14th. The swell jumps up a touch, and the period gets longer, up to 13 seconds, which is a proper groundswell. The combined energy is climbing into the 500s and 600s, which is moderate. But the wind is still on it, coming from the east-southeast, making things choppy. The wave comment calls it marginal, and that’s about right. It’s a tease, a bit of size but no shape to it. The water temp is 79°, which is pretty much spot on for this time of year, so you won’t need a thick suit at least.
There’s a bit of a lull again late in the second week, a few days there where it’s back to that small, onshore slop. The energy drops back down to the 250s and 260s, so it’s weak. It’s not looking good.
Then, looking way out to the 21st of August, there’s a whisper of something better. The swell is forecast to push up to 7ft, and the combined energy is hitting 904, which is strong. Still, the period is only 9 seconds, so it’s not a long-range groundswell, and the wind is forecast to be cross-onshore from the east. That’s a lot of power but it’s going to be bumpy. It’s a promise, but a long way off, so I wouldn’t bank on it being perfect. After that, it eases back off a bit into the 500s and 400s, with the wind staying generally onshore.
So, the honest truth is, there’s nothing here that’s a standout. The best bet is probably the 21st if that swell fills in, but even then, the wind is a problem. Otherwise, it’s a waiting game. The setup here at Marlin is a beach break, and with this persistent onshore flow and short-period swell, it’s going to be messy. If you’re into kitesurfing, this might be your window, because there’s plenty of wind and some size, but for paddle surfing, you’re going to be frustrated. It’s a classic case of a lot of ocean, but not a lot of surf.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Warm (max 26°C on Sun morning, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Wed morning, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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) | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 6 | ESE 7 | ESE 7 | S 15 | S 13 | E 8 | S 14 | S 13 | S 12 | S 15 | S 13 | ESE 12 | S 15 |
Wave Graph | |||||||||||||||||||||
112 | 91 | 91 | 86 | 84 | 158 | 153 | 173 | 245 | 352 | 280 | 215 | 219 | 140 | 306 | 404 | 356 | 215 | 350 | 293 | 470 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | cross-on | on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 1:15PM1.79m | 1:29AM1.87m | 2:11PM1.94m | 2:21AM2.05m | 2:58PM2.06m | 3:06AM2.20m | 3:40PM2.13m | 3:48AM2.29m | 4:19PM2.15m | 4:27AM2.31m | 4:56PM2.12m | 5:06AM2.26m | 5:31PM2.04m | ||||||||
Low Tide | 7:28PM0.47m | 7:56AM0.18m | 8:18PM0.34m | 8:45AM0.03m | 9:02PM0.23m | 9:29AM-0.06m | 9:42PM0.17m | 10:09AM-0.08m | 10:20PM0.14m | 10:48AM-0.03m | 10:56PM0.17m | 11:24AM0.07m | 11:32PM0.23m | ||||||||
5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | |
— | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:25 | — | |
mm | — | — | — | — | — | 1 | — | — | 2 | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 26 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 |
Feels °C | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | E 7 | ESE 7 | SSE 10 | ESE 7 | ESE 7 | S 13 | S 15 | S 14 | S 16 | S 14 | ESE 7 | ESE 7 | S 8 | S 7 | ESE 8 | S 13 | S 12 | ESE 9 | S 13 | ESE 12 | S 15 |
112 | 91 | 10 | 86 | 84 | 14 | 39 | 64 | 181 | 138 | 280 | 164 | 135 | 124 | 112 | 404 | 356 | 123 | 350 | 293 | 470 | |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SSE 11 | SE 13 | S 16 | S 15 | S 16 | ESE 8 | SE 12 | SE 11 | SE 11 | S 13 | S 8 | E 8 | E 8 | S 14 | E 8 | E 8 | S 12 | ESE 9 | S 13 | ESE 13 |
23 | 22 | 7 | 20 | 17 | 21 | 6 | 5 | 5 | 5 | 114 | 109 | 169 | 140 | 306 | 134 | 144 | 177 | 103 | 215 | 289 | |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | S 18 | S 10 | S 10 | SE 12 | SE 12 | SE 12 | — | — | S 6 | S 15 | S 13 | S 12 | SSE 7 | — | S 16 | S 15 | ESE 11 | SSE 18 | — |
6 | 5 | 6 | 8 | 2 | 6 | 6 | 5 | — | — | 15 | 215 | 219 | 109 | 79 | — | 129 | 215 | 64 | 103 | — | |
Wind waves Height (m) Direction Period (s) | — | — | ESE 7 | — | — | ESE 7 | ESE 7 | ESE 7 | SE 6 | ESE 7 | — | — | — | — | — | — | — | — | — | — | E 4 |
— | — | 91 | — | — | 158 | 153 | 173 | 245 | 352 | — | — | — | — | — | — | — | — | — | — | 11 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 157 | 925 | 925 | 315 | 992 | 769 | 992 | 992 | 904 | 316 | 904 | 665 | 316 | 904 | 315 | 66 | 925 | 172 | 157 | 925 | 925 |
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.











