Surf Forecasts:
Foz do Lizandro surf forecast from 13 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 7AM (local time) - 6.5ft (2.0m), 12s period, NW swell with 1,074 kJ wave energy.
Best Forecast Surf Conditions for Foz do Lizandro this week:
The most powerful waves expected at Foz do Lizandro in the next 16 days are 2.0m 12s and forecast to arrive on Thursday (Aug 20) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Sunday (Aug 16) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Thu 20th Aug) | 6.5ft (2.0m) 12s |
Table - best surf conditions forecast for Foz do Lizandro over the next 16 days.
The Lowdown
Right, grab a coffee an' let me have a squiz at the charts for this neck of the woods. The only spot on the cards is Foz do Lizandro, a river-mouth setup that catches the SW swell best. It's a beginner-friendly wave, and it's fairly consistent, but fair warning: it can get a crowd sometimes.
Honestly, for the next week or so, the surf looks pretty average. There's a long stretch where you'd be better off doing something else. The swell energy is weak, and the wind is mostly cross or cross-onshore, just messing up any chance of a clean wave. We're looking at a whole lot of nothing from Thursday the 13th right through to Monday the 24th of August. Yeah, that's a big gap with no real recommendations.
Now, just when you might give up hope, there's a tiny glimmer late in the forecast. On Monday morning, the 25th of August, we get a pulse of swell. It'll be about 6ft from the WNW with a period of 9 seconds. The wind will be a light cross-onshore breeze from the NW. The combined swell energy will be 529 (moderate but getting strong). It's still not perfect, labelled as marginal, but it's the best of a poor lot. This swell is on the bigger side, so maybe not one for absolute beginners, but it's something to keep an eye on.
The rest of that last week is more of the same – small, messy, and blown-out. Even on the 24th, when we see a 4ft swell, it's a cross-onshore mess.
So, bottom line, save your energy. There's nothing to get excited about for the next 11 days, but that Monday the 25th shows a bit of a pulse. For now, the water temperature is about average for August. Keep your fingers crossed the forecast changes, because this stretch of flat, blowy junk isn't normal for this place, but it happens.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 19°C on Wed night). Winds increasing (light winds from the N on Wed night, strong winds from the NNW by Sat afternoon). | Days 4-6 Weather SummarySome drizzle, heaviest during Tue afternoon. Warm (max 27°C on Tue morning, min 20°C on Sat night). Winds decreasing (strong winds from the NNW on Sat night, calm by Mon morning). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NNW 7 | S 18 | SW 18 | S 18 | SW 16 | SW 16 | SW 15 | SW 18 | SW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | NW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 154 | 237 | 175 | 130 | 124 | 0 | 6 | 12 | 6 | 10 | 11 | 9 | 12 | 9 | 26 | 25 | 24 | 21 | 20 | 20 | 286 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-on | cross | glassy | on | cross | cross-off | cross-on | cross | cross | cross-on | on |
High Tide | 4:01PM3.26m | 4:27AM2.93m | 4:42PM3.25m | 5:07AM2.90m | 5:22PM3.14m | 5:45AM2.80m | 6:01PM2.95m | 6:23AM2.67m | 6:40PM2.71m | 7:02AM2.50m | 7:21PM2.44m | 7:44AM2.32m | 8:08PM2.18m | ||||||||
Low Tide | 9:45AM0.08m | 10:18PM-0.10m | 10:26AM0.04m | 10:58PM-0.07m | 11:05AM0.09m | 11:36PM0.05m | 11:44AM0.20m | 00:12AM0.24m | 12:23PM0.38m | 00:49AM0.46m | 1:04PM0.59m | 1:27AM0.69m | 1:50PM0.80m | 2:12AM0.91m | |||||||
 |  |  | | |  | | | | | | | | | | |  |  | | | | |
 | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | 8:35 | — | — | 8:34 | — | — | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — |
Temp °C | 22 | 23 | 20 | 22 | 22 | 21 | 21 | 21 | 20 | 24 | 24 | 21 | 25 | 24 | 23 | 27 | 25 | 23 | 23 | 23 | 22 |
Feels °C | 21 | 22 | 18 | 20 | 19 | 18 | 18 | 17 | 15 | 24 | 23 | 20 | 26 | 24 | 23 | 26 | 24 | 25 | 23 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | — | S 18 | SW 18 | S 18 | NNW 9 | SW 16 | SW 15 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 |
| kJ | 154 | 237 | 175 | 130 | 124 | — | 6 | 12 | 6 | 934 | 11 | 9 | 689 | 488 | 298 | 344 | 251 | 155 | 151 | 125 | 111 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | NNW 9 | — | — | — | — | — | — | — | SW 16 | — | — | SW 18 | SW 15 | WNW 8 | W 8 | SSW 16 | WNW 8 | WNW 8 | WNW 8 | NW 13 |
| kJ | 18 | 16 | — | — | — | — | — | — | — | 10 | — | — | 12 | 9 | 6 | 5 | 24 | 6 | 12 | 6 | 286 |
Swell 3 Height (m) Direction Period (s) | NW 12 | — | — | — | — | — | — | — | — | — | — | — | SW 15 | — | SSW 16 | SSW 16 | — | SSW 15 | SSW 14 | SSW 14 | WNW 9 |
| kJ | 37 | — | — | — | — | — | — | — | — | — | — | — | 8 | — | 26 | 25 | — | 21 | 20 | 20 | 28 |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 9 | — | NNW 8 | NNW 8 | — | — | — | — | SW 2 | — | S 3 | SSW 3 | — |
| kJ | 23 | 33 | 72 | 135 | 176 | 431 | 1032 | 964 | 1082 | — | 665 | 827 | — | — | — | — | 1 | — | 1 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 216 | 31 | 119 | 468 | 228 | 237 | 571 | 197 | 1 | 217 | 30 | 0 | 208 | 2 | 0 | 208 | 1 | 1 | 138 | 9 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Foz do Lizandro Surf forecast
The above surf forecast table for Foz do Lizandro provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Foz do Lizandro can be found by selecting the local surf guide option on the grey menu. Our Foz do Lizandro 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 (Foz do Lizandro) 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 Foz do Lizandro 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.
Foz do Lizandro is 16 km (10 miles) from the city of Sintra. If you plan a holiday in Ericeira, look for hotels and other accommodation in Sintra. Sintra has rooms for a wide range of budgets as well as car hire and transport links.
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