Surf Forecasts:
Troia surf forecast from 4 Sep 2026:
- Best quality surf: Sunday 6 Sep, 10PM (local time) - 3.5ft (1.0m), 6s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 7PM (local time) - 4.5ft (1.3m), 5s period, NW swell with 96 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 10PM (local time) - 3.5ft (1.0m), 6s period with NW swell.
Best Forecast Surf Conditions for Troia this week:
The surf forecast for Troia over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 06) at 10PM. The primary swell is predicted to be 1.0m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Troia in the next 16 days are 1.3m 5s and forecast to arrive on Wednesday (Sep 09) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 9s period and expected on Tuesday (Sep 08) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 6th Sep) | 3.5ft (1.0m) 6s |
| Best Surf | 10PM (Sun 6th Sep) | 3.5ft (1.0m) 6s |
| Most Powerful | 7PM (Wed 9th Sep) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright, pull up a seat. It’s Rusty here, and I’ve got to be straight with you – the next couple of weeks are looking pretty grim for a paddle around Troia. We’ve got a long dry spell ahead with barely a ripple to get excited about. The water's sitting at a warm 72°F, which is a touch warmer than normal for this time of year, but that’s about the only silver lining.
For the first week, from Thursday the 3rd right through to Wednesday the 9th, it’s essentially a flat spell. There’s a tiny pulse of 0.7ft on Thursday morning with a weak 20 (combined energy), but the comment is "poor surf conditions" and I wouldn't bother waxing up. Friday, Saturday, Sunday, Monday... it’s all the same story: tiny waves or flatness. Monday the 7th sees a jump to a 4ft swell from the NW with a short, weak period of 5 seconds and energy hitting 65, but it’s still labelled poor. That wind is howling at 16 mph from the NNW though, making it a clean cross-offshore, but with that period and size, it’s just not going to be surfable in any meaningful way. Honestly, this kind of blank run is pretty normal for the area when the windows close.
The second week doesn't offer much more hope. From the 10th of September to the 18th, we see a few tiny bumps. Thursday the 10th morning shows a 2ft NW windswell with a 5-second period and only 13 energy – a total dud. The morning of the 11th is glassy with the wind swinging SW and a whisper of 0.7ft, but again, it's tiny and the guidance isn’t giving it any love. Saturday the 12th and Sunday the 13th are both glassy in the mornings but with essentially no swell. The rest of the run into the 18th is just more of the same: flat, clean mornings with light winds but zero wave height.
There are no standouts here. The only wave worth a mention is that tiny 0.7ft bump on the 5th of September morning under glassy conditions, but you’d be better off on a longboard and a prayer. If you’re a beginner, don’t even think about it – there’s nothing to learn on. The whole setup is more interesting for a lazy SUP than a surf. Keep watching the charts, because it rarely stays this poor for this long. I’m signing off.
Rusty
Short Range ForecastMostly dry. Warm (max 35°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Mon afternoon, min 19°C on Sun night). Winds increasing (light winds from the N on Sun night, fresh winds from the NNW by Tue afternoon). | ||||||||||||||||||||
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) | SW 13 | SW 13 | NW 4 | SW 12 | S 12 | WNW 9 | S 12 | W 18 | WNW 15 | WNW 12 | NW 5 | WNW 11 | NW 10 | NW 10 | NW 9 | NW 6 | NW 5 | NW 5 | WNW 8 | WNW 7 | NW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 7 | 7 | 6 | 3 | 0 | 3 | 6 | 0 | 0 | 44 | 0 | 0 | 0 | 0 | 33 | 80 | 27 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | off | glassy | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 8:02AM2.27m | 8:45PM2.12m | 9:26AM2.17m | 10:24PM2.05m | 11:02AM2.24m | 11:54PM2.16m | 12:19PM2.44m | 1:00AM2.35m | 1:18PM2.69m | 1:51AM2.56m | 2:06PM2.91m | 2:34AM2.72m | 2:48PM3.05m | 3:13AM2.83m | |||||||
Low Tide | 2:19PM0.75m | 2:53AM0.87m | 3:56PM0.82m | 4:33AM0.90m | 5:36PM0.71m | 6:01AM0.76m | 6:48PM0.49m | 7:03AM0.55m | 7:42PM0.26m | 7:52AM0.34m | 8:26PM0.07m | 8:34AM0.17m | 9:05PM-0.04m | ||||||||
 | |  |  | | | | | | | | | | |  | | | | | | | |
 | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — |
 | — | 8:00 | — | — | 8:00 | — | — | 7:58 | — | — | 7:57 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 32 | 29 | 30 | 33 | 35 | 29 | 30 | 33 | 24 | 29 | 31 | 21 | 26 | 27 | 21 | 25 | 28 | 21 | 27 | 30 | 21 |
Feels °C | 30 | 27 | 29 | 32 | 33 | 29 | 29 | 32 | 23 | 27 | 27 | 19 | 22 | 22 | 21 | 24 | 25 | 20 | 25 | 25 | 20 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | SW 13 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 11 | WNW 6 | WNW 12 | WNW 12 | WNW 11 | NW 10 | — | NW 9 | NW 8 | N 13 | WNW 8 | WNW 8 | NW 10 | NW 5 |
| kJ | 54 | 7 | 53 | 70 | 71 | 70 | 70 | 79 | 65 | 350 | 374 | 265 | 304 | — | 115 | 33 | 3 | 20 | 44 | 24 | 14 |
Swell 2 Height (m) Direction Period (s) | SW 13 | — | WNW 4 | SW 12 | NW 16 | NW 4 | NW 12 | W 18 | WNW 15 | NW 9 | — | — | — | — | — | — | — | NW 11 | NW 10 | NW 13 | WNW 7 |
| kJ | 7 | — | 3 | 6 | 10 | 9 | 89 | 6 | 246 | 81 | — | — | — | — | — | — | — | 19 | 25 | 25 | 15 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 13 | — | S 12 | NW 13 | S 12 | S 11 | NW 10 | NW 10 | — | — | — | — | — | — | — | NNW 8 | NW 14 | — | NW 11 |
| kJ | — | — | 7 | — | 3 | 63 | 3 | 3 | 38 | 15 | — | — | — | — | — | — | — | 7 | 7 | — | 33 |
Wind waves Height (m) Direction Period (s) | — | WNW 8 | NW 4 | — | — | — | — | WNW 9 | NW 6 | — | NW 5 | NW 6 | NW 7 | NW 10 | NW 9 | NW 6 | NW 5 | NW 5 | — | WNW 7 | — |
| kJ | — | 90 | 6 | — | — | — | — | 132 | 93 | — | 44 | 64 | 111 | 380 | 225 | 33 | 80 | 27 | — | 48 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 101 | 10 | 10 | 47 | 10 | 10 | 160 | 37 | 47 | 310 | 47 | 47 | 343 | 191 | 191 | 488 | 162 | 33 | 586 | 506 |
Best forecast wave conditions in Portugal - Alentejo | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Troia Surf forecast
The above surf forecast table for Troia provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Troia can be found by selecting the local surf guide option on the grey menu. Our Troia 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 (Troia) 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 Troia 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.
Troia is 9 km (6 miles) from Setubal. If you plan a holiday in Portugal - Alentejo, look for hotels and other accommodation in Setubal. Setubal has rooms for a wide range of budgets as well as car hire and transport links.
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