Surf Forecasts:
Sao Joao surf forecast from 3 Nov 2026:
- Best quality surf: Thursday 12 Nov, 6PM (local time) - 11ft (3.5m), 11s period, S swell with cross-shore winds.
- Most powerful swell: Friday 13 Nov, 12AM (local time) - 26ft (8.0m), 14s period, S swell with 23,558 kJ wave energy.
- Next surfable swell (1★+): Tuesday 3 Nov, 12PM (local time) - 2.5ft (0.8m), 12s period with NW swell.
Best Forecast Surf Conditions for Sao Joao this week:
The surf forecast for Sao Joao over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Nov 03) at 12PM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Sao Joao in the next 16 days are 8.0m 14s and forecast to arrive on Friday (Nov 13) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Saturday (Nov 07) at 6PM.
| Wave Type | Time (WET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 3rd Nov) | 2.5ft (0.8m) 12s |
| Best Surf | 6PM (Thu 12th Nov) | 11ft (3.5m) 11s |
| Most Powerful | 12AM (Fri 13th Nov) | 26ft (8.0m) 14s |
Table - best surf conditions forecast for Sao Joao over the next 16 days.
Short Range ForecastMostly dry. Warm (max 21°C on Tue afternoon, min 12°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 71mm), heaviest during Sun night. Warm (max 20°C on Sun morning, min 13°C on Fri morning). Mainly strong winds. | ||||||||||||||||||||
Tuesday 3 | Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | |||||||||||||||
AM | 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) | NW 12 | NW 11 | W 15 | W 13 | NNW 9 | W 12 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | SW 7 | SSW 6 | S 6 | SSW 7 | SW 8 | SW 8 | W 11 | S 9 | S 10 | SSW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 195 | 147 | 209 | 189 | 132 | 96 | 312 | 355 | 274 | 174 | 105 | 178 | 161 | 171 | 306 | 470 | 435 | 449 | 670 | 1137 | 1451 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-off | cross-off | cross-on | cross | glassy | cross-on | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross-on |
High Tide | 9:34AM2.39m | 10:25PM2.19m | 10:42AM2.48m | 11:23PM2.34m | 11:37AM2.58m | 00:09AM2.50m | 12:23PM2.65m | 00:49AM2.62m | 1:03PM2.70m | 1:25AM2.71m | 1:41PM2.70m | 1:59AM2.76m | 2:16PM2.67m | 2:32AM2.76m | |||||||
Low Tide | 4:12PM0.59m | 4:27AM0.74m | 5:12PM0.47m | 5:26AM0.59m | 5:59PM0.36m | 6:14AM0.46m | 6:38PM0.29m | 6:54AM0.35m | 7:13PM0.25m | 7:31AM0.28m | 7:46PM0.25m | 8:06AM0.25m | 8:18PM0.29m | ||||||||
 |  |  | | | | | |  | |  |  |  | |  |  | | | | |  | |
 | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — |
 | — | 5:35 | — | — | 5:34 | — | — | 5:32 | — | — | 5:31 | — | — | 5:30 | — | — | 5:30 | — | — | 5:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 21 | 1 | 3 | 43 | 3 | 4 | 12 |
Temp °C | 20 | 21 | 18 | 17 | 19 | 15 | 17 | 18 | 16 | 16 | 17 | 17 | 18 | 19 | 18 | 20 | 20 | 18 | 20 | 20 | 19 |
Feels °C | 17 | 18 | 16 | 13 | 15 | 12 | 14 | 15 | 15 | 13 | 14 | 16 | 16 | 17 | 15 | 18 | 19 | 15 | 17 | 17 | 14 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 11 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | NW 10 | SSW 7 | SW 8 | SW 8 | W 11 | S 9 | S 10 | SSW 10 |
| kJ | 195 | 147 | 135 | 189 | 132 | 94 | 312 | 355 | 274 | 174 | 105 | 76 | 39 | 25 | 306 | 470 | 435 | 449 | 434 | 873 | 1451 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 9 | W 15 | W 13 | W 12 | W 12 | NNW 7 | NNW 7 | N 6 | NNW 6 | NNW 6 | N 6 | NW 12 | WNW 12 | WNW 13 | WNW 13 | W 12 | SSW 8 | W 10 | WSW 9 | WSW 9 |
| kJ | 33 | 60 | 209 | 167 | 103 | 96 | 35 | 25 | 20 | 6 | 6 | 2 | 6 | 15 | 66 | 290 | 289 | 214 | 339 | 237 | 254 |
Swell 3 Height (m) Direction Period (s) | W 19 | WNW 17 | NW 11 | SW 6 | NW 16 | WNW 15 | SW 12 | S 12 | S 12 | SW 12 | SW 11 | SW 11 | N 7 | S 10 | W 16 | WNW 9 | — | S 12 | SW 8 | W 9 | WNW 10 |
| kJ | 29 | 97 | 57 | 1 | 10 | 85 | 6 | 3 | 3 | 5 | 5 | 5 | 1 | 2 | 20 | 8 | — | 3 | 88 | 180 | 71 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 7 | — | — | — | — | — | SE 3 | S 4 | SW 7 | SSW 6 | S 6 | — | — | — | — | S 9 | S 10 | — |
| kJ | — | — | — | 15 | — | — | — | — | — | 2 | 6 | 178 | 161 | 171 | — | — | — | — | 670 | 1137 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 76 | 0 | 0 | 11 | 5 | 0 | 79 | 0 | 0 | 0 | 51 | 0 | 33 | 175 | 20 | 78 | 215 | 436 | 518 | 442 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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 Sao Joao 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 Joao Surf forecast
The above surf forecast table for Sao Joao provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sao Joao can be found by selecting the local surf guide option on the grey menu. Our Sao Joao 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 Joao) 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 Joao 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 Joao is 4 km (2 miles) from Paco de Arcos. If you plan a holiday in Lisboa, look for hotels and other accommodation in Paco de Arcos. Paco de Arcos has rooms for a wide range of budgets as well as car hire and transport links.
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