
Surf Forecasts:
Troia surf forecast from 6 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 7PM (local time) - 4.5ft (1.4m), 5s period, NW swell with 110 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 1.4m 5s and forecast to arrive on Thursday (Aug 13) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 9s period and expected on Wednesday (Aug 12) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Thu 13th Aug) | 4.5ft (1.4m) 5s |
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. We’ve got a long stretch of flat to tiny, weak conditions, and the first proper surfable day doesn’t really show up until the very end of the run. The water is sitting at 75°F – that’s 6°F warmer than usual for this time of year, which is very unusual. It feels like a bath out there, but the waves are missing.
The first real opportunity to paddle out comes on Thursday, August 6th, but it’s a struggle. The afternoon sees a small WNW swell of 4ft coming from the WNW, but the period is a short, weak 4 seconds. The combined energy is only 57 (weak), and a 16 mph cross-shore wind from the NW is going to chop it up. It’s messy, and the data says poor surf conditions. Not worth the drive.
Friday the 7th offers a little hope in the morning – a clean 1ft NW swell with a light, cross-offshore breeze at 6 mph. That’s clean, but it’s knee-high at best. The afternoon picks up slightly to 3ft, but the wind swings cross-shore again at 12 mph, making it lumpy. We get a similar story through the weekend and into the next week. Mornings are often clean with light offshore breezes, but the swell is tiny – usually 1ft to 2ft, and sometimes flat. The afternoons are bigger but blown out by cross or cross-onshore winds.
We hit a proper flat spell from Sunday the 9th afternoon right through to Thursday the 13th, with many sessions showing zero energy. There’s a tiny bump on the 15th and 16th of August with a very long period 18-second swell from the south, but it’s only 0.3ft. That’s not enough to surf. The combined energy is in the 6 to 10 range – basically nothing.
The best of a bad bunch looks to be Friday, August 21st. The morning brings a clean, light offshore wind from the NNE at 6 mph, and a small 0.7ft swell from the SSW with a 13-second period. The combined energy is 37 (still weak), but it’s the most energy we’ve seen in a while. It’s only a tiny wave, but on a longboard, with clean conditions, you might get a few knee-high runners. Given the long period, it’ll be tricky at a beach break like Troia, but it’s the only real standout in a grim forecast. Crowds are *sometimes* a problem here, but on a day like this, you’ll probably have it mostly to yourself.
This is a tough run for Troia. For a beginner, the swell never gets above 5ft, so it’s never too big, but it’s mostly too small to catch anything. For the experts, there’s nothing with enough power. Honestly, with the consistent wind and small, weak swell, this setup looks more interesting for kite surfing than paddle surfing for most of the period.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Fri afternoon, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Mon afternoon, min 18°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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) | WNW 4 | NW 5 | NW 5 | WNW 4 | NW 4 | NW 4 | S 11 | NW 4 | S 13 | WNW 7 | S 11 | NW 7 | WNW 5 | WNW 5 | WNW 6 | WNW 4 | NW 5 | NW 4 | WNW 9 | WNW 9 |
Wave Graph | ||||||||||||||||||||
54 | 22 | 7 | 29 | 16 | 5 | 2 | 6 | 3 | 0 | 2 | 0 | 61 | 33 | 21 | 38 | 22 | 5 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 8:58PM2.23m | 9:41AM2.20m | 10:23PM2.16m | 11:06AM2.25m | 11:51PM2.22m | 12:23PM2.42m | 1:03AM2.38m | 1:26PM2.65m | 2:00AM2.56m | 2:19PM2.89m | 2:50AM2.71m | 3:06PM3.06m | 3:34AM2.80m | |||||||
Low Tide | 3:13AM0.75m | 3:58PM0.79m | 4:38AM0.79m | 5:30PM0.72m | 6:01AM0.71m | 6:47PM0.52m | 7:09AM0.54m | 7:49PM0.29m | 8:03AM0.34m | 8:40PM0.09m | 8:50AM0.18m | 9:25PM-0.05m | ||||||||
— | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | |
8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:36 | — | — | 8:35 | — | — | 8:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 22 | 30 | 33 | 24 | 28 | 29 | 22 | 26 | 27 | 21 | 27 | 30 | 20 | 27 | 30 | 21 | 28 | 31 | 22 |
Feels °C | 27 | 20 | 29 | 30 | 23 | 27 | 27 | 23 | 25 | 24 | 19 | 26 | 27 | 18 | 26 | 27 | 20 | 28 | 29 | 20 |
Swell 1 Height (m) Direction Period (s) | S 13 | W 10 | WNW 9 | NW 8 | WNW 9 | W 9 | S 11 | W 7 | W 7 | NNW 11 | WNW 7 | WNW 6 | S 12 | NW 7 | WNW 10 | W 12 | WNW 10 | WNW 9 | — | WNW 9 |
3 | 47 | 28 | 3 | 26 | 39 | 2 | 27 | 35 | 11 | 76 | 30 | 3 | 8 | 10 | 3 | 58 | 86 | — | 199 | |
Swell 2 Height (m) Direction Period (s) | — | NNW 8 | NW 10 | S 12 | NW 8 | N 7 | S 11 | — | NW 11 | — | NW 10 | NW 7 | — | WNW 11 | NNW 7 | NW 13 | NW 8 | NW 10 | — | N 9 |
— | 7 | 4 | 3 | 3 | 1 | 2 | — | 5 | — | 15 | 14 | — | 11 | 5 | 6 | 3 | 4 | — | 2 | |
Swell 3 Height (m) Direction Period (s) | — | S 13 | N 8 | — | S 12 | S 12 | — | S 11 | S 13 | — | S 11 | NW 9 | — | — | NW 13 | N 12 | NW 11 | NW 8 | — | N 11 |
— | 3 | 1 | — | 3 | 3 | — | 2 | 3 | — | 2 | 13 | — | — | 6 | 3 | 5 | 2 | — | 2 | |
Wind waves Height (m) Direction Period (s) | WNW 4 | NW 5 | NW 5 | WNW 4 | NW 4 | NW 4 | WNW 9 | NW 4 | — | WNW 7 | — | NW 7 | WNW 5 | WNW 5 | WNW 6 | WNW 4 | NW 5 | NW 4 | WNW 9 | NNW 5 |
54 | 22 | 7 | 29 | 16 | 5 | 77 | 6 | — | 82 | — | 56 | 61 | 33 | 21 | 38 | 22 | 5 | 232 | 25 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 464 | 52 | 191 | 789 | 48 | 48 | 463 | 48 | 51 | 310 | 37 | 52 | 503 | 60 | 52 | 458 | 37 | 37 | 458 | 47 |
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.











