Surf Forecasts:
Foz do Lizandro surf forecast from 16 Aug 2026:
- Best quality surf: Thursday 20 Aug, 4AM (local time) - 1.5ft (0.5m), 9s period, WNW swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 7PM (local time) - 2.5ft (0.7m), 12s period, NW swell with 137 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 4AM (local time) - 1.5ft (0.5m), 9s period with WNW 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 Thursday (Aug 20) at 4AM. The primary swell is predicted to be 0.5m and 9s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Foz do Lizandro in the next 16 days are 0.7m 12s and forecast to arrive on Sunday (Aug 23) at 7PM. 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 Friday (Aug 21) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Thu 20th Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 4AM (Thu 20th Aug) | 1.5ft (0.5m) 9s |
| Most Powerful | 7PM (Sun 23rd Aug) | 2.5ft (0.7m) 12s |
Table - best surf conditions forecast for Foz do Lizandro over the next 16 days.
The Lowdown
G’day, Rusty here. Gotta be straight with you – this is a tough one. We’re looking at a solid, almost two-week stretch where Foz do Lizandro (river) just isn't giving us anything rideable. The surf is tiny, wind is messy, and the whole setup is flat.
The first real pulse of energy doesn't arrive until Monday the 24th of August, but even then it's a raw, onshore mess. Swell bumps up to 4ft from the WNW, but that period is a weak 8-9 seconds, and it’s pouring straight onshore from the W. That combo makes for blown-out, gutless closeouts. Moderate wave energy is there but the quality is zero. It’s a bit more interesting for the kite crew than for a paddle surfer.
A bigger spike hits Sunday the 30th of August, with a 7ft NW swell rolling in late in the afternoon and strong combined energy. That’s legit size, but the period is only 10 seconds, and we’ve got a fresh cross-shore from the NNW at 19 mph. The sea state gets lumpy and rough. That’s expert territory and with that wind, you’d be fighting it the whole time. For the river bend, that’s a tough ask.
Truth is, for the entire 16-day window, there isn't one standout session. It’s a long, quiet dead run. The water temp is sitting around 68°F, which is about 1°F cooler than average for this time of year—nothing too wild, just your standard slight chill. But with barely a wave worth paddling for, it doesn’t matter much. Forecasts can change, but right now, I’d leave the board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 20°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Wed morning, min 19°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the NNW by Thu night). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | SW 16 | SW 16 | W 8 | W 8 | W 9 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SW 14 | NW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | SSW 15 | WNW 12 | WNW 11 | WNW 10 | WNW 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 11 | 9 | 9 | 9 | 26 | 25 | 24 | 21 | 33 | 27 | 49 | 67 | 46 | 26 | 21 | 27 | 40 | 55 | 61 | 41 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | glassy | on | glassy | cross | cross-on | cross | cross-on | on | cross | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on |
High Tide | 6:01PM2.95m | 6:23AM2.67m | 6:40PM2.71m | 7:02AM2.50m | 7:21PM2.44m | 7:44AM2.32m | 8:08PM2.18m | 8:37AM2.15m | 9:12PM1.98m | 9:50AM2.03m | 10:42PM1.88m | 11:22AM2.03m | 00:11AM1.94m | ||||||||
Low Tide | 11:44AM0.20m | 00:12AM0.24m | 12:23PM0.38m | 00:49AM0.46m | 1:04PM0.59m | 1:27AM0.69m | 1:50PM0.80m | 2:12AM0.91m | 2:50PM1.00m | 3:15AM1.09m | 4:18PM1.11m | 4:48AM1.16m | 5:56PM1.07m | ||||||||
 |  |  | | | | | | | | | | | | | | | | | | | |
 | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | 8:31 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:25 | — | — | 8:24 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 22 | 26 | 24 | 22 | 24 | 24 | 21 | 22 | 22 | 21 | 21 | 21 | 19 | 20 | 20 | 19 | 21 | 21 | 21 |
Feels °C | 26 | 23 | 20 | 26 | 24 | 23 | 24 | 24 | 24 | 22 | 23 | 22 | 22 | 18 | 14 | 15 | 15 | 15 | 19 | 19 | 22 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | W 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 6 | NNW 6 | WNW 9 | NNW 12 | WNW 8 | WNW 9 | WNW 11 | WNW 10 | WNW 9 | W 9 |
| kJ | 524 | 344 | 5 | 392 | 291 | 237 | 284 | 284 | 163 | 155 | 117 | 59 | 62 | 46 | 55 | 14 | 15 | 40 | 55 | 61 | 41 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | W 8 | W 9 | WNW 8 | W 8 | SSW 16 | WNW 8 | WNW 8 | NW 10 | WNW 9 | WNW 9 | NNW 11 | WNW 9 | SSW 15 | WNW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 10 | 11 | 9 | 4 | 6 | 7 | 10 | 24 | 13 | 12 | 27 | 49 | 67 | 12 | 26 | 21 | 27 | 18 | 20 | 20 | 20 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 15 | SW 15 | SSW 16 | SSW 16 | WNW 8 | SSW 15 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 15 | W 12 | SSW 15 | — | — | — | — |
| kJ | — | — | — | 9 | 9 | 26 | 25 | 6 | 21 | 33 | 20 | 17 | 17 | 17 | 21 | 12 | 21 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NNW 7 | — | — | — | — | SSW 3 | — | — | SW 2 | — | — | NNW 8 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 9 |
| kJ | — | — | 220 | — | — | — | — | 3 | — | — | 1 | — | — | 226 | 512 | 1205 | 864 | 705 | 457 | 377 | 257 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 194 | 30 | 0 | 219 | 0 | 1 | 841 | 1 | 1 | 219 | 27 | 28 | 546 | 228 | 232 | 405 | 28 | 119 | 420 | 47 |
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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