Surf Forecasts:
Troia surf forecast from 26 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 10AM (local time) - 6ft (1.9m), 7s period, W swell with 378 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 1.9m 7s and forecast to arrive on Thursday (Aug 27) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 11s period and expected on Friday (Aug 28) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Thu 27th Aug) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright, I’ve looked at everything for Troia and honestly, it’s a tough beat. Right across the entire 16-day window, this stretch is flat. There’s no other way to say it. We’ve got plenty of days with clean, glassy conditions and light offshore breezes, especially in the mornings, but there’s simply no swell to work with. The water’s sitting at 73°F, which is a touch warmer than normal for this time of year, but that’s not much comfort without waves.
The first sniff of anything rideable comes on Wednesday the 26th, but it’s a messy 4ft cross-onshore windswell with a ridiculously short 6-second period and moderate energy (133). That’s more of a washing machine than a surfable wave, and it’s labelled as poor. The swell bumps up a bit on Thursday the 27th with 6ft to 6ft from the west and a 7-to-8-second period, and energy sneaks into the moderate range (373 and 369), but the cross-onshore wind keeps it choppy and poor. Not worth paddling out.
Friday the 28th dawns absolutely glassy but with a flat 0.3ft micro-swell and just 2 energy. That’s a lake, not a surf break. From there, it’s a long stretch of zeros. Saturday the 29th, Sunday the 30th, and Monday the 31st all have clean, cross-offshore mornings, but wave heights are either zero or barely 2ft with tiny energy. By the end of August and into the first week of September, we see a few days with 0.3ft to 0.7ft of super-long-period swell (14 to 16 seconds), but the energy is weak (15 to 30) and the height is just not enough to break. Those are more like flat spells where the ocean breathes.
The last week of the forecast is the same story: mostly clean, often glassy mornings, but with no swell at all. This is a classic blank run for this area. Troia is a beginner spot, and while it’s fairly exposed, and the optimum swell direction is SW, the northeast offshore winds are solid, but they’re just blowing over a flat ocean. There’s nothing here for a surfer right now. If you’re into kiting, those clean cross-offshore days with moderate breezes might be interesting, but for paddle surfing, it’s a hard no.
Keep an eye on that forecast, because it can’t stay this flat forever. But for now, consider this a break.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Wed morning. Warm (max 24°C on Fri afternoon, min 17°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sat afternoon, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 4 | W 6 | W 8 | W 7 | S 11 | S 11 | S 10 | WNW 10 | NW 10 | NW 9 | NW 9 | NW 5 | NW 5 | NW 4 | NW 5 | NW 9 | SW 16 | SW 16 | SSW 15 | SW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 130 | 216 | 378 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 34 | 25 | 33 | 18 | 0 | 11 | 10 | 22 | 8 | 20 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-on | cross-on | cross-on | glassy | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 5:34AM2.68m | 5:51PM2.71m | ||||||||
Low Tide | 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 | 11:36AM0.27m | 00:00AM0.31m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — |
 | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — |
mm | 9 | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 20 | 21 | 21 | 19 | 22 | 24 | 20 | 24 | 28 | 20 | 26 | 28 | 21 | 27 | 28 | 19 | 25 | 26 | 18 |
Feels °C | 18 | 19 | 20 | 16 | 16 | 18 | 21 | 23 | 18 | 22 | 25 | 18 | 26 | 26 | 20 | 24 | 23 | 16 | 21 | 21 | 14 |
Swell 1 Height (m) Direction Period (s) | W 6 | S 11 | W 8 | SW 11 | W 8 | W 8 | WNW 10 | WNW 10 | NW 10 | NW 9 | — | NW 8 | NW 8 | NW 11 | NW 10 | NW 9 | NW 11 | NW 9 | W 9 | SW 15 | SSW 14 |
| kJ | 27 | 3 | 216 | 5 | 328 | 422 | 689 | 564 | 408 | 216 | — | 23 | 48 | 31 | 94 | 65 | 5 | 55 | 6 | 8 | 20 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | SW 11 | — | S 11 | S 11 | S 10 | — | — | — | — | — | — | W 13 | W 12 | NW 6 | SW 16 | WNW 10 | SSW 15 | — | — |
| kJ | 2 | 2 | 5 | — | 2 | 2 | 2 | — | — | — | — | — | — | 3 | 3 | 27 | 11 | 37 | 22 | — | — |
Swell 3 Height (m) Direction Period (s) | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 11 | SW 11 | SW 16 | — | — | — |
| kJ | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 23 | 5 | 10 | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | W 6 | — | W 7 | — | — | — | — | — | — | NW 9 | NW 5 | NW 5 | NW 4 | NW 5 | NW 6 | NW 9 | NW 6 | NW 9 | NW 8 | NW 8 |
| kJ | 15 | 130 | — | 378 | — | — | — | — | — | — | 178 | 34 | 25 | 33 | 18 | 42 | 235 | 101 | 220 | 277 | 203 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 195 | 442 | 73 | 463 | 157 | 47 | 10 | 47 | 33 | 47 | 463 | 47 | 47 | 458 | 47 | 47 | 458 | 162 | 162 | 488 | 75 |
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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