
Surf Forecasts:
Massaguacu surf forecast from 20 Jul 2026:
- Best quality surf: Monday 20 Jul, 6AM (local time) - 3.5ft (1.0m), 8s period, ESE swell with offshore winds.
- Most powerful swell: Monday 20 Jul, 6PM (local time) - 4.5ft (1.3m), 8s period, E swell with 208 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 6AM (local time) - 3.5ft (1.0m), 8s period with ESE swell.
Best Forecast Surf Conditions for Massaguacu this week:
The surf forecast for Massaguacu over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 20) at 6AM. The primary swell is predicted to be 1.0m and 8s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Massaguacu in the next 16 days are 1.3m 8s and forecast to arrive on Monday (Jul 20) at 6PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 10s period and expected on Sunday (Jul 26) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 20th Jul) | 3.5ft (1.0m) 8s |
| Best Surf | 6AM (Mon 20th Jul) | 3.5ft (1.0m) 8s |
| Most Powerful | 6PM (Mon 20th Jul) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Massaguacu over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking for Massaguacu over the next couple of weeks.
First off, the water temp is sitting about average for this time of year, so nothing wild there. The outlook is a bit of a mixed bag. We’ve got a few days of small, rideable waves right off the bat, but nothing that’s gonna get the heart racing. The real story is a gap in the action – after Thursday the 24th, things go pretty flat. From Friday the 25th right through to early on Tuesday the 28th, there’s basically nothing to bother with. A proper lull.
Let’s start with the early window. On Monday the 20th, we’ve got a weak 3ft to 3ft swell from the ESE. The combined energy is only 116 (weak), with a short period of 8 seconds. The morning has a light offshore breeze from the NNW, so the waves will be clean, but it’s more of a longboard or funboard session. The afternoon turns glassy, which is a beauty, but the swell is still tiny. Tuesday and Wednesday the 21st and 22nd are much the same story – tiny, clean waves with light offshores in the mornings and glassy afternoons, but the energy is still weak (107 and 115 in the morning). It’s surfable, but it’s very ordinary.
Thursday the 23rd and Friday the 24th are a write-off. The swell drops to 1ft to 2ft, and the conditions are poor, with onshore winds coming in. Best to save the wax.
Now, here’s the standout. After that flat spell early in the week, Tuesday the 28th brings a pulse. Morning sees a 4ft swell from the SE, with a period of 11 seconds. That’s a longer period groundswell, meaning more energy and better shape. The combined energy jumps to 380 (moderate). The wind is glassy, with a light NE breeze. That’s the pick of the whole forecast – clean, solid, and with some real push. This is one for the intermediate crew, maybe a bit much for beginners. The afternoon turns onshore, so get in early.
Wednesday the 29th morning holds a similar 4ft swell from the SE, with a light cross-offshore breeze from the NNW. Clean again, but the energy is a touch lower at 328. It’s a very good follow-up day.
After that, the swell settles back down. The 30th and 31st are small again, with 2ft to 2ft waves. The wind is mostly light or glassy, so it’s clean, but the energy is weak (83-120). The first week of August sees a few more small pulses, but nothing that gets close to that Tuesday the 28th morning. The best on offer is that Tuesday morning session, no doubt about it.
Stay tuned, forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 32°C on Wed morning, min 19°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 38mm), heaviest during Fri afternoon. Warm (max 26°C on Sat morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SW 3 |
Wave Graph | |||||||||||||||||||
63 | 116 | 83 | 79 | 107 | 81 | 65 | 115 | 90 | 70 | 51 | 49 | 33 | 20 | 11 | 12 | 12 | 11 | 6 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | off | off | cross-off | off | off | glassy | cross-off | glassy | cross-on | glassy | glassy | glassy | cross | cross-off | cross | cross-off |
High Tide | 5:36AM0.97m | 6:04PM0.83m | 6:23AM0.87m | 6:37PM0.78m | 7:28AM0.78m | 7:22PM0.73m | 11:31AM0.74m | 8:54PM0.68m | 12:42PM0.83m | 11:49PM0.71m | 1:21PM0.91m | 00:41AM0.78m | |||||||
Low Tide | 00:03AM0.43m | 12:47PM0.36m | 00:49AM0.43m | 1:38PM0.47m | 1:58AM0.43m | 2:57PM0.55m | 3:26AM0.42m | 4:37PM0.57m | 4:52AM0.37m | 6:04PM0.53m | 6:00AM0.29m | 6:59PM0.47m | |||||||
— | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | |
— | — | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 16 | 11 | 4 | 4 | — |
Temp °C | 20 | 29 | 28 | 22 | 30 | 30 | 23 | 32 | 32 | 21 | 25 | 22 | 20 | 21 | 20 | 20 | 26 | 24 | 20 |
Feels °C | 19 | 28 | 28 | 22 | 28 | 29 | 22 | 30 | 32 | 22 | 27 | 24 | 22 | 23 | 22 | 22 | 27 | 26 | 22 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 |
63 | 116 | 83 | 79 | 107 | 81 | 65 | 115 | 90 | 70 | 51 | 49 | 33 | 136 | 173 | 184 | 165 | 161 | 165 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 12 | S 12 | S 13 | S 11 | S 11 | S 11 | S 10 | S 9 | S 9 | S 8 | S 8 | S 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSE 13 |
14 | 12 | 3 | 13 | 3 | 2 | 2 | 8 | 7 | 14 | 12 | 5 | 26 | 20 | 11 | 12 | 12 | 11 | 34 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 15 | — | — | — | — | — | S 14 | S 13 | SW 4 | SE 12 | SSW 4 | — | — | — | S 11 | S 10 | E 8 |
— | — | 4 | — | — | — | — | — | 4 | 4 | 3 | 5 | 7 | — | — | — | 20 | 8 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNW 2 | — | WSW 3 | — | SSW 3 | WSW 2 | — | — | — | — | — | SW 3 |
— | — | — | — | — | — | — | 1 | — | 3 | — | 7 | 1 | — | — | — | — | — | 6 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 28 | 0 | 0 | 28 | 0 | 0 | 28 | 0 | 0 | 28 | 28 | 30 | 28 | 28 | 17 | 13 | 16 | 30 | 16 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Massaguacu Surf forecast
The above surf forecast table for Massaguacu provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Massaguacu can be found by selecting the local surf guide option on the grey menu. Our Massaguacu 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 (Massaguacu) 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 Massaguacu 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.
Massaguacu is 9 km (6 miles) from the city of Caraguatatuba. If you plan a holiday in São Paulo, look for hotels and other accommodation in Caraguatatuba. Caraguatatuba has rooms for a wide range of budgets as well as car hire and transport links.










