Surf Forecasts:
Sao Lourenco surf forecast from 18 Sep 2026:
- Best quality surf: Sunday 20 Sep, 6AM (local time) - 7.5ft (2.3m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Thursday 24 Sep, 3AM (local time) - 7ft (2.2m), 16s period, SSE swell with 2,428 kJ wave energy.
- Next surfable swell (1★+): Saturday 19 Sep, 3AM (local time) - 5ft (1.6m), 7s period with E swell.
Best Forecast Surf Conditions for Sao Lourenco this week:
The surf forecast for Sao Lourenco over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 19) at 3AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 0.6m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Sao Lourenco in the next 16 days are 2.2m 16s and forecast to arrive on Thursday (Sep 24) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Tuesday (Sep 22) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sat 19th Sep) | 5ft (1.6m) 7s |
| Best Surf | 6AM (Sun 20th Sep) | 7.5ft (2.3m) 8s |
| Most Powerful | 3AM (Thu 24th Sep) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Sao Lourenco over the next 16 days.
Short Range ForecastMostly dry. Warm (max 36°C on Mon morning, min 19°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Wed afternoon. Warm (max 35°C on Mon afternoon, min 19°C on Wed morning). Wind will be generally light. | |||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||
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) | S 10 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | E 8 | ESE 8 | ESE 8 | E 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | S 13 | SSE 17 | S 16 | S 15 | S 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 168 | 277 | 198 | 225 | 365 | 299 | 250 | 417 | 127 | 70 | 45 | 38 | 55 | 59 | 44 | 209 | 2324 | 1571 | 1212 | 881 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | on | cross | glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | glassy | cross | cross-on | on | glassy | on | glassy |
High Tide | 5:27PM0.81m | 00:40AM0.47m | 7:31AM0.72m | 12:42PM0.79m | 6:23PM0.71m | 12:48PM0.89m | 00:07AM0.74m | 1:02PM0.99m | 00:26AM0.87m | 1:18PM1.08m | 00:46AM1.00m | 1:35PM1.15m | 1:09AM1.12m | 1:53PM1.20m | 1:34AM1.22m | |||||
Low Tide | 11:11PM0.47m | 9:09AM0.71m | 4:25PM0.69m | 10:45PM0.60m | 4:18AM0.43m | 5:41PM0.59m | 5:30AM0.32m | 6:19PM0.48m | 6:17AM0.20m | 6:51PM0.38m | 6:56AM0.08m | 7:21PM0.29m | 7:32AM-0.00m | 7:52PM0.22m | ||||||
 |  | | | |  | | |  | | |  |  |  | | | | | | | |
 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — |
 | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 4 | 5 | 5 | — | 1 | — |
Temp °C | 21 | 20 | 23 | 22 | 21 | 23 | 27 | 27 | 36 | 35 | 25 | 24 | 24 | 22 | 19 | 19 | 19 | 21 | 20 | 21 |
Feels °C | 23 | 23 | 24 | 23 | 23 | 25 | 27 | 28 | 35 | 34 | 28 | 27 | 27 | 26 | 20 | 21 | 21 | 23 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | S 9 | S 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | ESE 8 | ESE 8 | ESE 9 | S 6 | S 13 | SSE 17 | S 16 | S 15 | S 14 |
| kJ | 168 | 94 | 62 | 41 | 25 | 299 | 250 | 201 | 127 | 70 | 45 | 38 | 55 | 59 | 32 | 209 | 2324 | 1571 | 1212 | 881 |
Swell 2 Height (m) Direction Period (s) | — | — | S 15 | S 14 | S 12 | S 9 | S 12 | S 12 | S 11 | S 11 | S 10 | S 13 | S 9 | SSW 5 | ESE 9 | E 8 | SE 12 | ESE 6 | ESE 11 | SE 6 |
| kJ | — | — | 4 | 4 | 28 | 15 | 26 | 11 | 10 | 2 | 2 | 3 | 2 | 8 | 44 | 37 | 23 | 63 | 12 | 68 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 12 | — | — | — | S 11 | — | S 12 | S 12 | S 11 | S 14 | S 20 | ESE 8 | SE 12 | ESE 11 | ESE 11 |
| kJ | — | — | — | — | — | 25 | — | — | — | 9 | — | 3 | 3 | 2 | 36 | 33 | 13 | 21 | 23 | 22 |
Wind waves Height (m) Direction Period (s) | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | — | — | E 8 | NNW 3 | NNW 4 | NNW 3 | SW 3 | SW 5 | — | — | S 6 | SSE 12 | — | SE 6 | — |
| kJ | 66 | 277 | 198 | 225 | 365 | — | — | 417 | 6 | 9 | 2 | 10 | 26 | — | — | 112 | 872 | — | 51 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 14 | 26 | 31 | 14 | 0 | 0 | 0 | 9 | 9 | 0 | 0 | 0 | 0 | 75 | 84 | 26 | 0 | 27 | 0 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sao Lourenco 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.
Information about the Sao Lourenco Surf forecast
The above surf forecast table for Sao Lourenco provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sao Lourenco can be found by selecting the local surf guide option on the grey menu. Our Sao Lourenco 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 (Sao Lourenco) 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 Sao Lourenco 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.
Sao Lourenco is 13 km (8 miles) from Bertioga. If you plan a holiday in São Paulo, look for hotels and other accommodation in Bertioga. Bertioga has rooms for a wide range of budgets as well as car hire and transport links.
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