Surf Forecasts:
Troia surf forecast from 20 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 4AM (local time) - 3.5ft (1.0m), 7s period, W swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 7AM (local time) - 6ft (1.9m), 9s period, W swell with 575 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 4AM (local time) - 3.5ft (1.0m), 7s period with W 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 Tuesday (Aug 25) at 4AM. The primary swell is predicted to be 1.0m and 7s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Troia in the next 16 days are 1.9m 9s and forecast to arrive on Monday (Aug 24) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 9s period and expected on Monday (Aug 24) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 25th Aug) | 3.5ft (1.0m) 7s |
| Best Surf | 4AM (Tue 25th Aug) | 3.5ft (1.0m) 7s |
| Most Powerful | 7AM (Mon 24th Aug) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let’s have a look at what’s on the cards for the Troia area over the next few weeks. I’ll be straight with you – it’s a pretty quiet picture for the most part. We’ve got a long stretch of days where the ocean just isn’t offering much for a paddle, so let’s get into it.
The forecast opens with a few near-flat days. Thursday the 20th of August has a tiny 0.7ft swell from the SSW with a period of 4 seconds – that’s just wind slop, not even worth a look. The combined energy is a weak 2. Friday the 21st through to the end of the weekend is mostly flat, with some days showing zero swell. The wind swings around, but without any significant wave height, you’re just looking at a flat lake. This means we’re looking at a gap of several days with no real surf in the first week.
The real event, and the only thing that gets my heart beating a little, happens on Monday the 24th of August. We get a pulse of 6ft swell from the west, with a period of 9 seconds. That’s a solid head-high to slightly overhead wave. The combined energy hits 501, which is strong, so there’s real power in the water. However, the wind is onshore from the SW at 16 mph, which will chop it up. The break itself is Troia, a beginner spot that’s inconsistent and rarely breaks. The swell is over 5ft, so it’s pushing into intermediate territory, and onshore wind will make it messy. It’s a beach-and-reef setup, and with that strong onshore wind and lumpy conditions, it looks more like a kite-surfing day than a good paddle session. The water temperature is about average for the time of year, nothing unusual to report.
After that pulse, it drops right back off. From Tuesday the 25th through to the end of the forecast, we’re back to tiny, weak swells of 0.3ft or 0.7ft, with combined energy below 25. The wind does go clean and cross-offshore from the north on a few days, but there’s just no wave to ride. The only standout here is that Monday the 24th, and even then, it’s a tough call because of the wind. If you have to get wet, that’s your window, but don’t expect perfection.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 16°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Sun night. Warm (max 22°C on Sun afternoon, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | SSW 4 | SSW 13 | SSW 15 | NW 8 | NW 5 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 4 | SW 5 | W 9 | W 8 | W 7 | SW 12 | SW 12 | W 7 | SW 12 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 17 | 21 | 0 | 84 | 18 | 20 | 20 | 19 | 18 | 11 | 57 | 494 | 339 | 124 | 6 | 6 | 32 | 5 | 5 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross-off | cross | cross-off | cross | on | glassy | cross-on | on | cross-on | on | on | on | on | on | on | on | cross | cross-on |
High Tide | 8:26AM2.07m | 9:01PM1.91m | 9:40AM1.96m | 10:32PM1.82m | 11:12AM1.96m | 00:01AM1.88m | 12:26PM2.09m | 1:01AM2.02m | 1:17PM2.27m | 1:44AM2.18m | 1:57PM2.46m | 2:19AM2.35m | 2:31PM2.64m | 2:52AM2.49m | |||||||
Low Tide | 2:37PM0.97m | 3:02AM1.06m | 4:06PM1.07m | 4:36AM1.12m | 5:45PM1.03m | 6:04AM1.04m | 6:52PM0.89m | 7:01AM0.88m | 7:37PM0.71m | 7:42AM0.70m | 8:13PM0.53m | 8:17AM0.52m | 8:45PM0.37m | ||||||||
 |  |  | | | | | | | | |  |  | |  | | | |  | | | |
 | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 8:22 | — | — | 8:22 | — | — | 8:20 | — | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 8 | 1 | — | — | — | — | — | 8 | 1 | — |
Temp °C | 24 | 26 | 19 | 25 | 26 | 18 | 22 | 22 | 19 | 21 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 20 | 20 | 21 | 19 |
Feels °C | 24 | 24 | 15 | 22 | 21 | 15 | 20 | 19 | 19 | 19 | 20 | 19 | 20 | 21 | 22 | 21 | 20 | 21 | 20 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | SSW 15 | NW 8 | SSW 14 | WNW 9 | WNW 9 | NW 10 | W 8 | WNW 11 | WNW 10 | WNW 10 | W 9 | W 8 | W 7 | W 7 | WNW 7 | W 7 | WNW 7 | WNW 9 | WNW 8 |
| kJ | 47 | 45 | 21 | 73 | 20 | 32 | 58 | 46 | 37 | 435 | 458 | 378 | 494 | 339 | 124 | 97 | 77 | 32 | 82 | 28 | 181 |
Swell 2 Height (m) Direction Period (s) | NW 6 | SSW 4 | SW 4 | WNW 9 | W 11 | SSW 13 | NW 10 | SSW 14 | NNW 9 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | NW 8 | SW 12 | SW 12 | NW 7 | SW 12 | SW 11 | SW 11 |
| kJ | 5 | 2 | 1 | 26 | 3 | 18 | 48 | 20 | 16 | 18 | 7 | 7 | 7 | 6 | 36 | 6 | 6 | 18 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | SSW 4 | SSW 13 | SW 12 | NW 11 | — | — | SSW 14 | SSW 14 | SSW 14 | — | SW 13 | N 8 | N 8 | — | SW 12 | W 11 | — | W 10 | — | — | NW 13 |
| kJ | 2 | 17 | 6 | 19 | — | — | 20 | 20 | 19 | — | 7 | 1 | 1 | — | 6 | 2 | — | 2 | — | — | 7 |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | NW 8 | — | NW 5 | NW 10 | — | W 9 | — | SSE 3 | SSW 4 | SW 5 | — | — | — | — | — | — | — | WNW 7 | — |
| kJ | — | 3 | 192 | — | 84 | 196 | — | 55 | — | 2 | 11 | 57 | — | — | — | — | — | — | — | 108 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 157 | 317 | 47 | 458 | 52 | 18 | 110 | 10 | 32 | 363 | 73 | 539 | 193 | 47 | 73 | 442 | 73 | 47 | 47 | 60 |
Best forecast wave conditions in Portugal - Alentejo | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Troia 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 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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