
Surf Forecasts:
Foz do Lizandro surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 7AM (local time) - 2ft (0.6m), 14s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 10AM (local time) - 5ft (1.6m), 14s period, NW swell with 1,034 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 1AM (local time) - 1.5ft (0.4m), 15s period with NW swell.
Best Forecast Surf Conditions for Foz do Lizandro this week:
The surf forecast for Foz do Lizandro over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 1AM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Foz do Lizandro in the next 16 days are 1.6m 14s and forecast to arrive on Saturday (Sep 19) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Wednesday (Sep 16) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 13th Sep) | 1.5ft (0.4m) 15s |
| Best Surf | 7AM (Sun 13th Sep) | 2ft (0.6m) 14s |
| Most Powerful | 10AM (Sat 19th Sep) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Foz do Lizandro over the next 16 days.
The Lowdown
Alright, let’s break down the next couple of weeks.
We got a slow start here at Foz do Lizandro (river mouth). The water is sitting at 65°F, which is much colder than normal for this time of year – that anomaly of -4°F is hard to ignore, it’ll feel proper chilly out there. Things start off pretty average on Saturday the 12th with a tiny 2ft swell from the WNW, period around 10 seconds, and combined energy is weak at 68. The wind is cross-off in the morning which keeps it clean, but the afternoon turns cross-on and choppy. Not worth rushing out for.
Sunday the 13th is where it gets interesting. A new 3ft NW groundswell rolls in with a 13-second period – that’s decent period, giving the waves a bit of push and shape. Combined energy jumps to 330 – moderate, but better. The morning is clean with light offshore from the SSE. This is the first real standout. The river mouth setup should handle that longer period nicely, giving some lined-up waves. Keep in mind it’s a beginner-friendly break and sometimes crowded.
Monday morning the 14th is another high point – 3ft NW swell, 11-second period, combined energy of 288 and total glass. Zero wind, so it’s flat as a mirror, absolutely clean. That’s the kind of morning you wake up early for. The afternoon goes cross-on though, so make the most of the dawn patrol.
After Monday things go a bit downhill. Tuesday the 15th and Wednesday the 16th are mostly messy, with strong cross-shore winds and lumpy conditions or no swell at all. There’s a big gap from Tuesday through until the following Monday – no quality windows in that stretch.
Come Saturday the 19th, there’s a 5ft NW swell with 14-second period – combined energy is a beefy 1042, so there’s real power in the water. But the wind is a moderate cross-shore, creating cross-chop. It’s rideable but not perfect. That size is getting up there – fine for experienced surfers, beginners might find it a handful.
Then Monday the 21st afternoon you get a 7ft NW swell (14-second period) with combined energy at 1597. The file says the swell is predicted to be too big for this break, and that rings true. That’s expert only territory at the river mouth, so unless you’re solid, sit this one out.
Tuesday the 22nd morning is even bigger – 8ft NW swell (13-second period), combined energy at 2005. That’s a lot of water moving. For the experienced crew only, and even then, it’s likely closing out or washing through the river mouth. The wind is cross-off though, so the surface will be clean – just an absolute beast.
The rest of the window into the second week is small, messy or onshore – mostly 0.3ft swells and choppy conditions, not worth the paddle. No real standouts out there.
If you’ve got a kite, those windy, choppy days in the middle might be more your thing than a paddle board.
-Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Sun morning, min 19°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu morning, min 17°C on Tue night). Winds increasing (light winds from the NNW on Tue morning, strong winds from the NNW by Wed morning). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 9 | NW 15 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | WNW 8 | WNW 8 | NNW 5 | S 13 | NNW 9 | NNW 9 | WNW 12 | NW 11 | S 16 | SW 16 | NW 16 | NW 13 | SW 14 |
Wave Graph | |||||||||||||||||||||
61 | 68 | 80 | 290 | 465 | 486 | 242 | 169 | 40 | 22 | 59 | 3 | 0 | 0 | 218 | 548 | 5 | 10 | 10 | 87 | 8 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | on | cross | glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 4:15PM3.17m | 4:36AM2.94m | 4:51PM3.04m | 5:10AM2.86m | 5:26PM2.85m | 5:44AM2.73m | 6:02PM2.62m | 6:18AM2.55m | 6:39PM2.37m | 6:56AM2.36m | 7:22PM2.13m | 7:44AM2.16m | 8:22PM1.92m | ||||||||
Low Tide | 10:02AM0.03m | 10:27PM-0.02m | 10:38AM0.08m | 11:00PM0.11m | 11:13AM0.19m | 11:32PM0.29m | 11:48AM0.36m | 00:04AM0.50m | 12:25PM0.57m | 00:38AM0.73m | 1:07PM0.80m | 1:19AM0.95m | 2:02PM1.01m | 2:18AM1.13m | |||||||
7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | |
— | 7:51 | — | — | 7:50 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 24 | 27 | 26 | 25 | 27 | 25 | 22 | 20 | 20 | 18 | 18 | 19 | 19 | 21 | 20 | 18 | 20 | 20 | 18 |
Feels °C | 25 | 24 | 21 | 26 | 24 | 23 | 25 | 23 | 21 | 20 | 17 | 13 | 10 | 11 | 12 | 15 | 14 | 12 | 16 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NNW 7 | NNW 7 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NNW 10 | NW 11 | S 13 | — | — | WNW 12 | NNW 9 | S 12 | SW 16 | NNW 9 | NW 13 | NNW 15 |
115 | 111 | 97 | 290 | 465 | 486 | 242 | 169 | 102 | 63 | 33 | 3 | — | — | 218 | 617 | 3 | 10 | 698 | 87 | 2400 | |
Swell 2 Height (m) Direction Period (s) | WNW 10 | WNW 9 | WNW 9 | NNW 7 | NNW 7 | S 11 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | S 13 | — | — | S 12 | NW 11 | S 16 | S 11 | NW 16 | NW 18 | SW 14 |
61 | 68 | 64 | 61 | 36 | 2 | 46 | 46 | 40 | 22 | 13 | 3 | — | — | 3 | 548 | 5 | 2 | 10 | 51 | 8 | |
Swell 3 Height (m) Direction Period (s) | SW 13 | NW 12 | NW 15 | W 9 | S 12 | S 11 | NNW 7 | S 11 | S 11 | WNW 12 | S 10 | — | — | — | — | S 12 | — | — | SW 15 | SW 14 | — |
7 | 6 | 80 | 40 | 3 | 2 | 17 | 2 | 2 | 15 | 2 | — | — | — | — | 3 | — | — | 9 | 8 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNW 6 | NNW 4 | NNW 4 | NNW 5 | NNW 8 | NNW 9 | NNW 9 | NNW 10 | — | NNW 10 | NNW 9 | — | NNW 8 | NNW 8 |
— | — | — | — | — | — | — | 12 | 7 | 9 | 59 | 756 | 1819 | 1819 | 2247 | — | 957 | 907 | — | 488 | 352 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 28 | 0 | 0 | 47 | 8 | 0 | 28 | 27 | 27 | 809 | 232 | 705 | 405 | 140 | 28 | 424 | 125 | 30 | 220 | 27 |
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.










