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Praia Grande surfForecast / Lisboa / Portugal
12 Day Weather and Surf, issued 6 pm Wednesday 20 Aug 2025 WEST
Best Forecast Surf Conditions for Praia Grande this week:
The most powerful waves expected at Praia Grande in the next 12 days are 2.5m 17s and forecast to arrive on Tuesday (Aug 26) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 16s period and expected on Saturday (Aug 23) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Tue 26th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Praia Grande over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 20°C on Fri morning, min 18°C on Wed night). Winds decreasing (fresh winds from the NNW on Thu night, light winds from the NNW by Fri night). | Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sun morning, min 18°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 6 | 12 | 7 | 7 | 7 | 7 | 8 | 6 | 6 | 11 | 10 | 21 | 20 | 21 | 18 | 17 | 15 | 13 | ||
Wave (?)Graph  | |||||||||||||||||||||||
| Energy (?) | 167 | 114 | 160 | 294 | 372 | 406 | 353 | 283 | 216 | 206 | 159 | 99 | 123 | 219 | 621 | 716 | 1499 | 3022 | 3853 | 2945 | 2234 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | ||
High Tide / height (m) | 2:01AM 2.46 | 2:17PM 2.77 | 2:45AM 2.59 | 2:59PM 2.92 | 3:24AM 2.69 | 3:37PM 3.00 | 3:59AM 2.73 | 4:12PM 3.01 | 4:33AM 2.74 | 4:46PM 2.95 | 5:05AM 2.69 | 5:18PM 2.83 | 5:36AM 2.61 | ||||||||||
Low Tide / height (m) | 7:52PM 0.42 | 8:03AM 0.49 | 8:38PM 0.25 | 8:45AM 0.34 | 9:17PM 0.14 | 9:22AM 0.23 | 9:52PM 0.09 | 9:57AM 0.19 | 10:25PM 0.10 | 10:30AM 0.19 | 10:56PM 0.16 | 11:02AM 0.26 | 11:26PM 0.27 | 11:35AM 0.37 | |||||||||
Wed 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||
| Sunrise | - | - | 6:56 | - | - | 6:56 | - | - | 6:58 | - | - | 6:58 | - | - | 7:00 | - | - | 7:00 | - | - | 7:01 | ||
| Sunset | 8:25 | - | - | 8:24 | - | - | 8:22 | - | - | 8:22 | - | - | 8:20 | - | - | 8:19 | - | - | 8:17 | - | - | ||
 |  | | | |  | | | | |  | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 19 | 19 | 19 | 19 | 18 | 20 | 19 | 18 | 20 | 19 | 19 | 20 | 20 | 20 | 19 | 19 | 18 | 20 | 19 | 18 | 18 | ||
| Feels °C (?) | 15 | 16 | 15 | 15 | 14 | 19 | 16 | 16 | 20 | 18 | 17 | 19 | 18 | 19 | 16 | 15 | 14 | 16 | 14 | 11 | 12 | ||
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Recent Eyeball Surf Reports for Lisboa
The wind is still cross-on at Praia Grande (moderate winds from the NNW at Alvide wx 12 km from Praia Grande). A 1.2m windswell from the NW
1 h 30 min ago
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 Praia Grande 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 Praia Grande Surf forecast
The above surf forecast table for Praia Grande provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Praia Grande can be found by selecting the local surf guide option on the grey menu. Our Praia Grande 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 (Praia Grande) 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 Praia Grande 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.
Praia Grande is 9 km (6 miles) from Sintra. If you plan a holiday in Lisboa, 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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