Surf Forecasts:
Troia surf forecast from 25 Aug 2026:
- Best quality surf: Sunday 30 Aug, 1AM (local time) - 3ft (0.9m), 6s period, NW swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 10AM (local time) - 6ft (1.8m), 8s period, W swell with 378 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 1AM (local time) - 3ft (0.9m), 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 (Aug 30) at 1AM. The primary swell is predicted to be 0.9m 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 1.8m 8s and forecast to arrive on Thursday (Aug 27) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 12s period and expected on Friday (Aug 28) at 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 30th Aug) | 3ft (0.9m) 6s |
| Best Surf | 1AM (Sun 30th Aug) | 3ft (0.9m) 6s |
| Most Powerful | 10AM (Thu 27th Aug) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good look at what’s on the cards for Troia over the next couple of weeks. I’ve got to be straight with you – it’s a pretty bleak picture for the foreseeable future. We’ve got a real gap on our hands, with no decent surf on offer for most of the 16-day window.
We start off on Tuesday, 25th August, with a tiny 0.3ft swell from the SW, but the combined swell energy is a measly (6) – that’s virtually nothing. It’s glassy in the morning, which is lovely, but there’s just no wave to ride. That afternoon the wind picks up onshore, and it’s still flat. Wednesday and Thursday see a bit more size – we get up to around 6ft on Thursday morning – but the wind is onshore or cross-onshore and the conditions are poor. That combined energy on Thursday morning hits (330), which is moderate, but the quality is just not there. It’s messy.
Then we hit a real dead zone. From Friday, 28th August, all the way through to Monday, 7th September, the swell drops to almost nothing, with many days showing zero combined wave energy. It’s flat. The winds turn offshore and cross-offshore, and the mornings are clean, but there’s simply no swell to work with. A surfer’s worst nightmare – perfect conditions with nothing to surf.
Towards the very end, on Wednesday, 9th September, we see a tiny pulse of 2ft from the WNW, but the period is only 5 seconds – that’s weak, windswell stuff – and the energy is just (23). It’s not going to get your heart racing.
Because Troia is an inconsistent beginner spot and the forecast is so bare, I have to say there is no standout surf on offer in this entire 16-day run. The water temperature is sitting at 73°, which is a touch warmer than normal for the time of year, but you’ll have to bring a book, not a board.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Wed morning. Warm (max 22°C on Tue morning, min 16°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Sat afternoon, min 16°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 12 | SW 12 | SW 12 | WSW 6 | W 6 | SW 11 | W 8 | S 11 | S 11 | WNW 11 | WNW 11 | S 10 | NW 9 | NW 8 | NW 6 | W 13 | NW 4 | NW 5 | NW 9 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 6 | 6 | 53 | 130 | 5 | 378 | 2 | 2 | 0 | 0 | 2 | 0 | 0 | 54 | 3 | 40 | 28 | 0 | 11 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | on | on | on | on | on | cross-on | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:57PM2.46m | 2:19AM2.35m | 2:31PM2.64m | 2:52AM2.49m | 3:04PM2.78m | 3:23AM2.61m | 3:35PM2.89m | 3:54AM2.69m | 4:06PM2.94m | 4:26AM2.74m | 4:39PM2.92m | 4:59AM2.73m | 5:13PM2.85m | ||||||||
Low Tide | 8:13PM0.53m | 8:17AM0.52m | 8:45PM0.37m | 8:49AM0.37m | 9:16PM0.23m | 9:21AM0.25m | 9:47PM0.13m | 9:52AM0.18m | 10:18PM0.09m | 10:25AM0.15m | 10:49PM0.10m | 10:59AM0.18m | 11:23PM0.17m | ||||||||
 | |  |  | |  |  |  |  | | | | | | | | | | | | | |
 | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — |
 | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — |
mm | — | — | — | 4 | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 21 | 22 | 20 | 21 | 21 | 20 | 22 | 25 | 19 | 26 | 29 | 21 | 27 | 29 | 22 | 27 | 30 | 19 |
Feels °C | 21 | 20 | 20 | 19 | 19 | 20 | 17 | 17 | 18 | 21 | 22 | 15 | 25 | 26 | 18 | 26 | 26 | 22 | 24 | 26 | 16 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 9 | S 11 | W 8 | S 11 | W 8 | W 8 | WNW 11 | WNW 11 | WNW 10 | NW 9 | — | NW 8 | NW 8 | S 11 | NW 10 | NW 9 | SW 16 | NW 10 |
| kJ | 152 | 94 | 43 | 2 | 3 | 253 | 2 | 337 | 351 | 959 | 604 | 314 | 155 | — | 22 | 64 | 2 | 58 | 64 | 11 | 34 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | W 10 | SW 12 | SW 11 | SW 11 | — | S 11 | S 11 | — | — | S 10 | — | — | — | W 13 | W 13 | W 12 | WNW 5 | S 9 | SW 16 |
| kJ | 6 | 6 | 2 | 5 | 5 | 5 | — | 2 | 2 | — | — | 2 | — | — | — | 3 | 3 | 3 | 19 | 2 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 12 | NW 10 | — | — | — | — | — | — | — | — | — | — | — | S 12 | — | S 10 | WNW 11 | — | — |
| kJ | — | — | 6 | 4 | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 2 | 23 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 6 | W 6 | — | W 8 | — | — | — | — | — | — | NW 8 | NW 6 | — | NW 4 | NW 5 | — | NW 9 | NW 8 |
| kJ | — | — | — | 53 | 130 | — | 378 | — | — | — | — | — | — | 162 | 54 | — | 40 | 28 | — | 249 | 149 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 463 | 73 | 506 | 157 | 73 | 470 | 463 | 42 | 10 | 157 | 33 | 33 | 463 | 56 | 37 | 463 | 47 | 47 | 162 | 56 |
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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