Surf Forecasts:
Mystos surf forecast from 5 Aug 2026:
- Best quality surf: Saturday 8 Aug, 12AM (local time) - 8ft (2.4m), 15s period, S swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 12AM (local time) - 8ft (2.4m), 15s period, S swell with 2,445 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 9PM (local time) - 2.5ft (0.7m), 10s period with SSE swell.
Best Forecast Surf Conditions for Mystos this week:
The surf forecast for Mystos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 05) at 9PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.6m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Mystos in the next 16 days are 2.4m 15s and forecast to arrive on Saturday (Aug 08) at 12AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Thursday (Aug 06) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 5th Aug) | 2.5ft (0.7m) 10s |
| Best Surf | 12AM (Sat 8th Aug) | 8ft (2.4m) 15s |
| Most Powerful | 12AM (Sat 8th Aug) | 8ft (2.4m) 15s |
Table - best surf conditions forecast for Mystos over the next 16 days.
The Lowdown
Rusty here, giving you the skinny on Mystos. The next couple weeks start slow, but there's some heavy water on the horizon if you've got the patience.
Right off the bat, not much happening. The water is a touch warmer than usual for the season at 68°. Wednesday afternoon has a weak 2ft SSE swell, with combined energy at 123. Glassy, but not worth paddling out. Thursday morning is even smaller. Friday gets blown out with increasing cross-onshore wind.
The first real sign of life is Saturday morning, August 8th. We get a jump to a 7ft SSE swell with a very long 14-second period and 1773 combined energy. The wind is a clean cross-offshore from the NNE, so it should be looking good. This is serious groundswell, and at that size, it's for the experienced crew only. The afternoon stays clean at 6ft.
Sunday and Monday are messy with onshore winds and shorter period, making for choppy conditions.
Circle your calendar for Tuesday the 11th and Wednesday the 12th. Tuesday morning delivers a clean 7ft SSE swell with a 12-second period and cross-offshore winds. The combined energy is 1177. It's excellent and clean for experienced surfers. Wednesday the 12th morning is nearly identical: 7ft SSE, 12 seconds, clean cross-offshore wind, and 1190 combined energy. These are the best two windows of the whole outlook. Crowds can show up at Mystos, so plan to be early.
After a mid-week lull, the big stuff fires up again. Monday the 17th has a massive 10ft ENE swell with a clean cross-offshore wind. The combined energy is a whopping 2479. This is huge. The afternoon glasses off with 8ft ENE and only a light air – it'll be a sight to see, but only for experts.
The session fades out by the 20th, with the swell dropping to 3ft and a lumpy cross-chop.
My top pick is the morning of Wednesday the 12th. It's got it all: clean conditions, strong long-period groundswell, and solid size. Tuesday the 11th morning is right there with it. Get after it.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Wed afternoon. Warm (max 23°C on Thu morning, min 13°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Mon afternoon. Very mild (max 19°C on Sat afternoon, min 10°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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) | SSE 10 | SSE 9 | SSE 9 | ENE 8 | NE 8 | ENE 8 | S 8 | S 15 | SSE 14 | SSE 13 | S 12 | S 8 | S 9 | SSE 11 | S 12 | S 12 | SSW 10 | SSE 12 | SSE 12 | SSE 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 86 | 76 | 46 | 44 | 125 | 92 | 291 | 2445 | 1715 | 1156 | 1287 | 409 | 328 | 836 | 898 | 615 | 769 | 1164 | 1108 | 1159 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | glassy | cross | cross-off | cross-on | cross-on | glassy | cross-off | cross-off | cross-on | cross | cross-on | glassy | cross | cross | cross | cross-off | cross | cross-off |
High Tide | 5:33PM0.42m | 11:16PM0.36m | 6:29AM0.47m | 5:59PM0.36m | 00:05AM0.37m | 12:26PM0.62m | 00:44AM0.37m | 1:15PM0.70m | 1:14AM0.38m | 2:01PM0.76m | 1:28AM0.39m | 2:46PM0.77m | 00:25AM0.43m | 3:29PM0.74m | 00:26AM0.50m | |||||
Low Tide | 8:49PM0.32m | 8:31AM0.44m | 3:42PM0.33m | 9:06PM0.29m | 3:34AM0.24m | 9:24PM0.28m | 4:49AM0.17m | 9:12PM0.29m | 5:53AM0.09m | 7:44PM0.29m | 6:46AM0.01m | 8:08PM0.31m | 7:33AM-0.05m | 8:34PM0.33m | ||||||
 |  |  |  | | | |  | | | |  | |  |  | | | | |  | |
 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — |
 | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — |
mm | 7 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | 1 | 1 | 3 | 1 | — | — | — |
Temp °C | 19 | 18 | 23 | 21 | 22 | 18 | 16 | 14 | 18 | 19 | 18 | 14 | 13 | 13 | 11 | 11 | 12 | 13 | 14 | 13 |
Feels °C | 21 | 20 | 24 | 21 | 22 | 14 | 11 | 11 | 14 | 15 | 17 | 10 | 10 | 12 | 9 | 8 | 8 | 9 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 9 | E 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 15 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | S 9 | SSE 11 | S 12 | S 12 | S 11 | SSE 12 | SSE 12 | SSE 12 |
| kJ | 86 | 76 | 24 | 44 | 64 | 92 | 51 | 2445 | 1715 | 1156 | 807 | 317 | 328 | 836 | 898 | 615 | 524 | 1164 | 1108 | 1159 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | SSE 9 | SSE 9 | SSE 8 | SSE 10 | SE 8 | ENE 8 | — | — | ENE 8 | ENE 8 | SSE 11 | ENE 8 | ENE 8 | E 9 | E 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 34 | 33 | 46 | 30 | 28 | 10 | 3 | 36 | — | — | 73 | 34 | 239 | 20 | 19 | 40 | 36 | 13 | 12 | 6 |
Swell 3 Height (m) Direction Period (s) | S 12 | SE 15 | SSE 13 | SSE 12 | SSE 11 | SSE 8 | — | — | — | — | — | — | ENE 8 | E 13 | — | — | SSE 12 | — | — | — |
| kJ | 3 | 9 | 18 | 15 | 12 | 7 | — | — | — | — | — | — | 19 | 4 | — | — | 49 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 8 | SSW 6 | S 8 | — | ENE 8 | NE 6 | S 12 | S 8 | — | — | — | — | SSW 10 | — | — | — |
| kJ | — | — | — | — | 125 | 86 | 291 | — | 58 | 69 | 1287 | 409 | — | — | — | — | 769 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 5 | 0 | 6 | 319 | 0 | 70 | 70 | 6 | 13 | 6 | 0 | 6 | 6 | 13 | 0 | 13 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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Information about the Mystos Surf forecast
The above surf forecast table for Mystos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mystos can be found by selecting the local surf guide option on the grey menu. Our Mystos 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 (Mystos) 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 Mystos 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.
Mystos is 12 km (7 miles) from Laguna. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Laguna. Laguna has rooms for a wide range of budgets as well as car hire and transport links.
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