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Mongagua surfForecast / São Paulo / Brazil
12 Day Weather and Surf, issued 2 pm Saturday 06 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Mongagua surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mongagua sea temperature is
24.8° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Mongagua this week:
The surf forecast for Mongagua over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Dec 06) at 9PM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.6m and 8s. Another secondary swell of 0.2m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mongagua in the next 12 days are 1.1m 11s and forecast to arrive on Friday (Dec 12) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Dec 10) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 6th Dec) | 2ft (0.6m) 8s |
| Best Surf | 3AM (Fri 12th Dec) | 3ft (0.9m) 12s |
| Most Powerful | 9AM (Fri 12th Dec) | 3.5ft (1.1m) 11s |
Table - best surf conditions forecast for Mongagua over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 3mm), mostly falling on Mon afternoon. Warm (max 29°C on Tue morning, min 22°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Tue afternoon. Warm (max 32°C on Wed afternoon, min 25°C on Tue afternoon). Winds increasing (calm on Tue afternoon, fresh winds from the NW by Wed morning). | ||||||||||||||||||||||
Sat 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 8 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 9 | 12 | 11 | 11 | 11 | 10 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 55 | 29 | 48 | 41 | 48 | 25 | 47 | 46 | 43 | 56 | 115 | 111 | 108 | 58 | 60 | 81 | 190 | 303 | 287 | 284 | 168 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | cross- on | on | glass | cross- on | cross- on | glass | off | glass | cross- off | off | cross- off | cross- off | cross- off | on | cross | glass | cross | glass | glass | ||
High Tide / height (m) | 3:02PM 1.09 | 4:09AM 1.23 | 3:35PM 1.10 | 4:49AM 1.13 | 4:12PM 1.10 | 5:30AM 1.03 | 4:53PM 1.08 | 6:13AM 0.94 | 5:41PM 1.04 | 7:04AM 0.88 | 6:40PM 0.97 | 8:06AM 0.84 | 7:58PM 0.92 | 9:28AM 0.85 | |||||||||
Low Tide / height (m) | 9:38PM 0.09 | 10:34AM 0.62 | 10:10PM 0.13 | 10:26AM 0.69 | 10:47PM 0.21 | 10:04AM 0.70 | 11:37PM 0.31 | 10:21AM 0.71 | 1:08AM 0.40 | 11:02AM 0.72 | 2:45AM 0.46 | 3:24PM 0.67 | 4:00AM 0.48 | ||||||||||
Sat 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||
| Sunrise | - | - | 5:09 | - | - | 5:09 | - | - | 5:09 | - | - | 5:11 | - | - | 5:11 | - | - | 5:11 | - | - | 5:11 | ||
| Sunset | 6:43 | - | - | 6:44 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:46 | - | - | 6:46 | - | - | ||
 |  |  | | | |  |  | | |  | | | | | | | | |  | | |||
Rain (mm) | - | - | - | - | - | - | 1 | - | 2 | 2 | 2 | - | - | - | - | - | - | - | - | 2 | 3 | ||
| Temp. °C | 25 | 22 | 26 | 26 | 23 | 27 | 26 | 24 | 29 | 27 | 26 | 31 | 32 | 28 | 32 | 29 | 26 | 32 | 31 | 27 | 29 | ||
| Feels °C (?) | 26 | 25 | 28 | 28 | 26 | 30 | 28 | 28 | 31 | 31 | 26 | 29 | 31 | 29 | 33 | 31 | 29 | 35 | 34 | 31 | 33 | ||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mongagua surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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 12 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.
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