Surf Forecasts:
Troia surf forecast from 21 Aug 2026:
- Most powerful swell: Monday 24 Aug, 7PM (local time) - 7ft (2.1m), 8s period, WSW swell with 569 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 2.1m 8s and forecast to arrive on Monday (Aug 24) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 12s period and expected on Sunday (Aug 23) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Mon 24th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you – the outlook for Troia over the next 16 days is a tough one to sell. We're looking at a real quiet spell, with very little wave energy on the cards. The combined swell energy barely gets going, spending most of the time in the weak category, with a few days kicking up to a moderate 462 and 495 range, but even then it's not offering any decent surf.
The gap is pretty much the whole run. Right now, through the end of August and into early September, we've got a whole lot of nothing. The swell we do see is small, short-period stuff, or long-period but tiny. Winds are mostly cross or onshore, so the quality is poor. The only real pulse of energy hits around Monday the 24th of August, with a 7 ft WSW swell, but it's just 8 seconds of period, and it's coming with a fresh cross-onshore wind. That's gonna be a lumpy, choppy mess – more of a kite surfing session than a paddle surf. For the rest of the run, from the 21st of August right through to the 5th of September, we're looking at flat to tiny waves, mostly clean but with no power. The water temp is about average for the time of year, so no complaints there, but there's just nothing to ride.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Fri afternoon, min 16°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sun night. Warm (max 22°C on Mon morning, min 19°C on Sun night). Winds decreasing (fresh winds from the SSW on Mon afternoon, light winds from the SSW by Mon night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 14 | NW 5 | SSW 13 | SSW 14 | SSW 14 | WNW 16 | SSW 13 | SSW 13 | WSW 10 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | W 7 | W 6 | SW 12 | W 7 | SW 11 | SW 11 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21 | 84 | 18 | 20 | 20 | 0 | 18 | 17 | 551 | 455 | 489 | 331 | 143 | 71 | 48 | 5 | 56 | 5 | 5 | 5 | 4 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | on | glassy | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | on | on | cross-on | on | cross-on | cross | cross | cross-off |
High Tide | 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 | 3:04PM2.78m | 3:23AM2.61m | |||||||
Low Tide | 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 | 8:49AM0.37m | 9:16PM0.23m | ||||||||
 | |  | | | | |  |  |  | | | | |  | | | | | | | |
 | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 8:22 | — | — | 8:20 | — | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — |
mm | — | — | — | — | — | — | — | — | 4 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 18 | 22 | 22 | 19 | 21 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 20 | 23 | 24 | 19 |
Feels °C | 22 | 21 | 15 | 20 | 19 | 19 | 19 | 20 | 20 | 19 | 18 | 22 | 21 | 20 | 22 | 19 | 19 | 20 | 20 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | SSW 14 | WNW 9 | WNW 9 | W 9 | WNW 16 | WNW 12 | W 11 | WSW 10 | SW 13 | SW 13 | WSW 8 | WSW 7 | W 7 | W 6 | W 7 | W 7 | WNW 8 | WNW 8 | SW 11 | WNW 9 |
| kJ | 45 | 20 | 47 | 58 | 39 | 97 | 648 | 584 | 551 | 7 | 6 | 331 | 143 | 71 | 48 | 72 | 56 | 151 | 207 | 5 | 334 |
Swell 2 Height (m) Direction Period (s) | NW 11 | W 11 | SSW 13 | NW 10 | NW 10 | WNW 8 | SSW 13 | SSW 13 | SW 13 | N 8 | N 8 | SW 12 | SW 12 | SSW 6 | SW 12 | SW 12 | NW 9 | SW 11 | SW 11 | SW 11 | SW 11 |
| kJ | 20 | 2 | 18 | 48 | 46 | 24 | 18 | 17 | 7 | 1 | 1 | 6 | 6 | 13 | 6 | 5 | 62 | 5 | 5 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | — | — | SSW 14 | SSW 14 | NW 9 | SW 13 | N 8 | N 8 | — | — | N 8 | W 11 | SW 12 | W 10 | — | SW 11 | N 13 | — | — | — |
| kJ | 21 | — | — | 20 | 20 | 21 | 7 | 1 | 1 | — | — | 1 | 2 | 6 | 2 | — | 5 | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 7 | NW 5 | NW 10 | — | — | — | — | — | — | WSW 8 | WSW 8 | — | — | — | — | — | — | — | — | WNW 9 | — |
| kJ | 55 | 84 | 196 | — | — | — | — | — | — | 455 | 489 | — | — | — | — | — | — | — | — | 245 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 47 | 458 | 52 | 18 | 110 | 10 | 10 | 327 | 73 | 277 | 360 | 73 | 30 | 110 | 73 | 110 | 157 | 47 | 47 | 160 | 37 |
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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