
Surf Forecasts:
Praia da Vieira surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 7PM (local time) - 3ft (0.9m), 9s period, NW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 5ft (1.5m), 12s period, WNW swell with 619 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 7PM (local time) - 3ft (0.9m), 9s period with NW swell.
Best Forecast Surf Conditions for Praia da Vieira this week:
The surf forecast for Praia da Vieira over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 04) at 7PM. The primary swell is predicted to be 0.9m and 9s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Praia da Vieira in the next 16 days are 1.5m 12s and forecast to arrive on Monday (Sep 07) 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 0.1m 13s period and expected on Friday (Sep 04) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 4th Sep) | 3ft (0.9m) 9s |
| Best Surf | 7PM (Fri 4th Sep) | 3ft (0.9m) 9s |
| Most Powerful | 10AM (Mon 7th Sep) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Praia da Vieira over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what we've got coming down the line for our local stretch. It's going to be a bit of a mixed bag, so let's get into it.
Right from the start, we've got a bit of a wait on our hands. The first session worth talking about is this Friday morning, the 4th of September. We're looking at small 2 ft swell rolling in from the WNW with a short 8-second period. The combined energy is low, weak even, at just (67). But, with a light NE cross-off breeze, the water at Praia da Vieira is 68°, which is pretty much spot on for this time of year. Honestly, it’s surfable but very ordinary – a bit of a groaner to get things started.
Saturday morning is where things start to look a little more promising. The 5th sees a touch more size at 3 ft from the WNW, period stretching to 9 seconds, and the energy bumps up a notch to (123). The real story here is the glassy conditions with a light northerly wind. That's clean surf, no doubt about it. For a small wave, this is about as good as it gets in the short term.
That glassy feeling pops up again on the morning of Tuesday the 15th. It's flat calm, not a breath of wind, and we've got 4 ft of NNW swell at 8 seconds. Energy's moderate at (197). It'll be clean, but the short period will keep things a bit lumpy and less powerful. Still, a good morning for a longboard or a funboard.
Looking further out, the morning of Wednesday the 16th and Thursday the 17th both have glassy conditions on the cards. Wednesday morning has 3 ft from the NNW at 7 seconds (171 energy), and Thursday morning has 3 ft from the NNW at 8 seconds (180 energy). Both offer that clean, windless surface, but the swell is small and short-period. Good for a cruise, not for a thrill.
The standout window in this whole outlook, though, is the morning of Monday the 14th of September. Now, Monday morning itself isn't a standout because of the wind, but look at what's building. The pulse of swell through the 13th and into the 14th is the biggest we see in the whole forecast. On Monday the 14th morning, the wind swings around to a light SSW cross. That’s a huge improvement on the onshore winds we’ve been fighting. The swell is 5 ft from the NW with an 8-second period and energy at (316). That's the most sizeable, most powerful wave we're going to see, and for the first time in days the wind won't be destroying it. It’s still a bit short-period and cross, but it’s the best combo of size and manageable conditions in the entire 16-day window.
After that, we trail off. The 17th afternoon and into the 18th gets blown out by strong NNW winds, and the 19th is a write-off with messy onshore junk. The last real sniff of anything clean is that Thursday morning on the 17th. After that, it's a long, choppy fade-out.
So, to wrap it up: the best bet for a clean, fun session is Saturday the 5th of September for the small, glassy waves. But if you want the biggest swell of the period and can handle a bit of cross-wind texture, make the call for Monday the 14th of September, early. That's the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sat morning, min 17°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Wed morning, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 8 | NW 8 | WNW 9 | WNW 9 | NW 15 | NW 13 | NW 12 | NW 11 | WNW 14 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | NW 8 | NNW 8 | NW 11 | NNW 10 | NNW 12 | NNW 11 | NNW 10 |
Wave Graph | |||||||||||||||||||||
59 | 80 | 99 | 103 | 136 | 398 | 332 | 258 | 350 | 619 | 540 | 359 | 223 | 172 | 136 | 213 | 515 | 320 | 536 | 366 | 141 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross | glassy | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross |
High Tide | 9:00PM2.21m | 9:41AM2.27m | 10:37PM2.14m | 11:16AM2.33m | 00:09AM2.24m | 12:35PM2.54m | 1:15AM2.45m | 1:34PM2.79m | 2:07AM2.65m | 2:22PM3.02m | 2:50AM2.83m | 3:04PM3.17m | 3:30AM2.94m | ||||||||
Low Tide | 2:35PM0.77m | 3:09AM0.89m | 4:10PM0.85m | 4:48AM0.93m | 5:50PM0.74m | 6:15AM0.79m | 7:03PM0.51m | 7:18AM0.56m | 7:57PM0.27m | 8:08AM0.34m | 8:41PM0.08m | 8:50AM0.16m | 9:21PM-0.04m | ||||||||
7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | |
— | 8:02 | — | — | 8:00 | — | — | 8:00 | — | — | 7:58 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 29 | 24 | 22 | 22 | 21 | 18 | 20 | 20 | 18 | 19 | 19 | 18 | 21 | 21 | 18 | 19 | 20 | 19 |
Feels °C | 24 | 26 | 25 | 26 | 22 | 22 | 21 | 20 | 17 | 18 | 19 | 17 | 16 | 17 | 18 | 18 | 18 | 16 | 16 | 16 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 11 | WNW 14 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | NW 8 | NNW 8 | — | NNW 10 | NNW 12 | NNW 11 | NNW 6 |
59 | 80 | 99 | 103 | 127 | 398 | 332 | 258 | 350 | 619 | 540 | 359 | 223 | 172 | 135 | 213 | — | 320 | 536 | 366 | 46 | |
Swell 2 Height (m) Direction Period (s) | NNW 4 | NW 10 | NNW 5 | NNW 5 | NW 15 | NW 9 | WNW 9 | W 18 | NW 10 | NNW 9 | — | — | — | — | NW 15 | NW 12 | — | NW 13 | WNW 7 | W 7 | NNW 10 |
8 | 25 | 9 | 10 | 136 | 110 | 70 | 25 | 117 | 56 | — | — | — | — | 9 | 112 | — | 87 | 18 | 15 | 141 | |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | NW 16 | NW 11 | — | — | — | WNW 9 | — | — | — | — | — | — | W 8 | — | WNW 8 | — | W 11 | W 7 |
7 | 7 | 7 | 10 | 5 | — | — | — | 64 | — | — | — | — | — | — | 21 | — | 19 | — | 2 | 8 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 6 | — | — | NW 9 | NW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | — | NW 11 | — | — | — | — |
— | — | — | — | 18 | — | — | 86 | 23 | 32 | 33 | 80 | 126 | 126 | 136 | — | 515 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 63 | 34 | 0 | 136 | 6 | 34 | 318 | 136 | 136 | 488 | 136 | 184 | 300 | 6 | 31 | 443 | 133 | 133 | 317 | 161 |
Best forecast wave conditions in Beira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Praia da Vieira Surf forecast
The above surf forecast table for Praia da Vieira provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia da Vieira can be found by selecting the local surf guide option on the grey menu. Our Praia da Vieira 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 da Vieira) 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 da Vieira 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 da Vieira is 14 km (9 miles) from Marinha Grande. If you plan a holiday in Beira, look for hotels and other accommodation in Marinha Grande. Marinha Grande has rooms for a wide range of budgets as well as car hire and transport links.










