
Surf Forecasts:
Mongagua surf forecast from 26 Jul 2026:
- Best quality surf: Sunday 26 Jul, 3AM (local time) - 3.5ft (1.0m), 9s period, SSE swell with glassy winds.
- Most powerful swell: Sunday 26 Jul, 12PM (local time) - 2.5ft (0.8m), 13s period, S swell with 219 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 3AM (local time) - 3.5ft (1.0m), 9s period with SSE swell.
Best Forecast Surf Conditions for Mongagua this week:
The surf forecast for Mongagua over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 26) at 3AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.6m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Mongagua in the next 16 days are 0.8m 13s and forecast to arrive on Sunday (Jul 26) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 26) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 26th Jul) | 3.5ft (1.0m) 9s |
| Best Surf | 3AM (Sun 26th Jul) | 3.5ft (1.0m) 9s |
| Most Powerful | 12PM (Sun 26th Jul) | 2.5ft (0.8m) 13s |
Table - best surf conditions forecast for Mongagua over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here, looking at the next couple of weeks for our local stretch. We’ve got a bit of a slow start, but there’s a flash of something decent if you’re willing to wait.
The first real chance to get wet doesn’t come up until the morning of Sunday, July 26th. The swell is small at 2ft from the south, with a nice long period of 13 seconds – that’s proper groundswell, with clean lines and energy. The wind is glassy, dead calm, so it’s going to be silky smooth out there. The combined energy is moderate at 321. This is a good window for an intermediate surfer; the water temperature anomaly is about average for the time of year, so nothing crazy there. It’s the pick of the early period, but it’s not huge.
Don’t get too excited for the rest of that week. From Sunday afternoon right through to the morning of Saturday, August 1st, it’s a real mixed bag of tiny, weak waves and poor wind. The swell drops right off, with short periods around 8-10 seconds, and the wind is generally cross or cross-onshore, churning things up. The energy drops into the double digits (54-98), which is really weak. There are long gaps of nothing worthwhile here.
The morning of Saturday, August 1st, offers a little reprieve with a glassy 2ft south swell, period 12 seconds, and moderate energy (132). It’s surfable, but nothing special.
The real standout, the one worth circling on the calendar, is the morning of Wednesday, August 5th. We see a jump in swell to 4ft from the ESE, with a period of 8 seconds. It’s a bit short-period, but the wind is clean cross-off from the north at 9 mph, and the combined energy is a solid 255. This is the best quality, most consistent swell of the whole run. It’s not going to be too big for most, but it’s got enough push to be fun. The morning of Thursday, August 6th, is also promising with a similar 5ft ESE swell and offshore wind from the NNW, energy at 280 – that’s a solid morning, too. After that, things get messy again with onshore winds and choppy conditions.
For the true beginner, it’s mostly small and manageable, but the cleaner windows are on those early mornings. For the experts, only the Wednesday and Thursday mornings in early August offer any real punch, but they’re not big enough to call it a proper challenge.
So, to sum it up: the first week is a write-off with a few small, glassy windows. The best bet is the morning of Wednesday, August 5th, with Thursday morning, August 6th, as a close second. After that, the swell fades back into mediocrity. It’s been a slow patch, but it won’t stay this way forever.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Tue morning, min 17°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 35°C on Wed afternoon, min 19°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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 9 | S 13 | S 13 | S 12 | SE 8 | SE 8 | SE 8 | ESE 8 | S 12 | E 7 | S 12 | S 11 | S 11 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 |
Wave Graph | |||||||||||||||||||
203 | 173 | 212 | 103 | 68 | 66 | 64 | 74 | 41 | 46 | 43 | 61 | 59 | 50 | 48 | 25 | 28 | 43 | 53 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | off | glassy | off | cross-off | off | off | cross | cross-on | cross-off | cross-on | cross-on | glassy |
High Tide | 00:36AM0.90m | 1:48PM1.11m | 1:15AM1.00m | 2:13PM1.19m | 1:46AM1.10m | 2:38PM1.24m | 2:15AM1.20m | 3:02PM1.28m | 2:45AM1.28m | 3:29PM1.30m | 3:16AM1.34m | 3:57PM1.31m | |||||||
Low Tide | 7:03AM0.24m | 7:46PM0.45m | 7:43AM0.15m | 8:18PM0.39m | 8:19AM0.07m | 8:47PM0.35m | 8:53AM0.02m | 9:15PM0.33m | 9:26AM-0.00m | 9:42PM0.32m | 9:57AM0.01m | 10:08PM0.33m | |||||||
— | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | |
— | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 18 | 22 | 21 | 20 | 25 | 24 | 22 | 30 | 30 | 27 | 33 | 35 | 30 | 22 | 20 | 21 | 22 | 22 | 20 |
Feels °C | 20 | 22 | 21 | 21 | 25 | 25 | 23 | 30 | 31 | 26 | 32 | 33 | 29 | 24 | 19 | 23 | 22 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | E 6 | E 7 | E 7 | E 7 | E 7 | S 10 | S 10 | S 5 | S 6 | S 9 | S 9 |
203 | 138 | 110 | 82 | 68 | 66 | 64 | 74 | 28 | 44 | 31 | 21 | 37 | 50 | 48 | 16 | 15 | 43 | 53 | |
Swell 2 Height (m) Direction Period (s) | SSE 13 | S 13 | S 13 | S 12 | S 11 | S 11 | S 12 | S 11 | SE 8 | SE 8 | S 12 | S 11 | S 11 | E 7 | E 7 | S 9 | S 9 | E 7 | S 13 |
59 | 173 | 212 | 103 | 61 | 59 | 47 | 41 | 29 | 23 | 43 | 61 | 59 | 23 | 14 | 25 | 28 | 9 | 28 | |
Swell 3 Height (m) Direction Period (s) | E 8 | E 7 | E 7 | E 7 | E 4 | E 4 | E 4 | S 14 | S 12 | S 12 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 7 | E 7 | E 7 | S 14 | E 7 |
10 | 10 | 4 | 4 | 6 | 6 | 3 | 16 | 41 | 46 | 15 | 15 | 10 | 6 | 2 | 8 | 8 | 15 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 3 | ENE 4 | — | E 4 | — | — | — | — | — | — | SW 4 | SSW 4 | — | SE 3 | SSE 5 | E 4 |
— | — | — | 3 | 15 | — | 9 | — | — | — | — | — | — | 10 | 10 | — | 3 | 17 | 12 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 19 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 46 | 57 | 0 | 35 | 34 | 0 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Mongagua Surf forecast
The above surf forecast table for Mongagua provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mongagua can be found by selecting the local surf guide option on the grey menu. Our Mongagua 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 (Mongagua) 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 Mongagua 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.
Mongagua is 12 km (7 miles) from Sao Vicente. If you plan a holiday in São Paulo, look for hotels and other accommodation in Sao Vicente. Sao Vicente has rooms for a wide range of budgets as well as car hire and transport links.










