Surf Forecasts:
Troia surf forecast from 7 Aug 2026:
- Best quality surf: Thursday 13 Aug, 10PM (local time) - 3.5ft (1.0m), 6s period, NW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 7PM (local time) - 4.5ft (1.4m), 5s period, NW swell with 115 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 10PM (local time) - 3.5ft (1.0m), 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 Thursday (Aug 13) at 10PM. The primary swell is predicted to be 1.0m 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 1.4m 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 1.4m 10s period and expected on Friday (Aug 14) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 13th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 10PM (Thu 13th Aug) | 3.5ft (1.0m) 6s |
| 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 with the full 16-day look for Troia. Let's get into it.
Straight up, I'm not going to sugarcoat it—this is a tough stretch for Troia. We're looking at a long run of poor surf conditions with hardly any rideable swell. The water is sitting at a warm 75° which is a solid 6° warmer than usual for this time of year, so that's a real standout for the area. But for the waves? It's a blank run.
The first few days, from Friday the 7th through to the end of next week, are almost a total write-off. We see tiny bumps of swell, mostly under 2 ft, with short periods and weak energy readings. The combined energy is almost always in the single digits or low double digits (7, 26, 6, 3, 0), meaning there's just no power in the water. For a spot that's fairly exposed, that's a bummer. The wind is often cross or cross-onshore, chopping up what little ripple there is.
There is a long gap from around the 12th to the 14th of August where there's literally zero swell on offer. Just flat, glassy mornings with a little cross-on breeze in the afternoon. Not even a bump.
Now, looking ahead to the second week, things get a little more interesting on paper, but it's still slim pickings. Around the 16th of August, we start seeing some very long period groundswell creeping in, with periods of 15 to 18 seconds, but the actual swell height is just 0.3 ft. The energy is still weak, maxing out around 15 (Southwest swell). The wind is variable, with some glassy mornings and offshore breezes, which would make the surface clean, but there's just no wave to ride.
The same pattern holds through the 22nd—tiny, long-period pulses with clean conditions but no real size. For a beginner-friendly spot like Troia, which is already inconsistent, these conditions are just not going to produce anything worth paddling out for. The overall picture is one of the most drawn-out flat spells I've seen for this area.
So, here's the bottom line: there are no standout days, no hidden gems, and no good surf options in this 16-day window. The forecasts can change, but right now, this is a true blank run for Troia.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Fri afternoon, min 18°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Wed afternoon, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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) | NW 4 | WNW 4 | NW 4 | NW 4 | W 3 | WNW 4 | S 13 | WNW 7 | NW 5 | WNW 6 | WNW 5 | W 6 | W 6 | WNW 4 | NW 5 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 23 | 12 | 3 | 4 | 5 | 3 | 0 | 51 | 0 | 63 | 18 | 11 | 31 | 32 | 0 | 0 | 0 | 0 | 0 | 30 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 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 | 3:50PM3.16m | |||||||||
Low Tide | 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 | 9:33AM0.07m | 10:07PM-0.10m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — |
 | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:36 | — | — | 8:35 | — | — | 8:34 | — | — | 8:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 33 | 24 | 27 | 28 | 21 | 26 | 27 | 22 | 27 | 29 | 21 | 26 | 29 | 21 | 28 | 30 | 23 | 30 | 32 | 23 |
Feels °C | 29 | 30 | 23 | 26 | 26 | 21 | 25 | 24 | 21 | 26 | 25 | 20 | 26 | 27 | 20 | 28 | 29 | 21 | 30 | 31 | 23 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | NNW 8 | WNW 9 | W 9 | WNW 9 | WNW 7 | WNW 7 | NW 10 | WNW 8 | WNW 6 | S 12 | W 6 | W 6 | W 12 | WNW 10 | WNW 9 | NW 10 | WNW 9 | WNW 9 | NW 13 | WNW 9 |
| kJ | 28 | 7 | 26 | 39 | 15 | 41 | 54 | 4 | 113 | 29 | 3 | 18 | 11 | 3 | 41 | 66 | 4 | 184 | 106 | 7 | 82 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | S 12 | NW 8 | N 7 | N 7 | — | NW 11 | — | NW 10 | NW 8 | S 12 | NW 7 | WNW 10 | N 12 | NW 8 | NW 5 | NNW 10 | N 9 | N 10 | — | NW 11 |
| kJ | 9 | 3 | 3 | 1 | 1 | — | 5 | — | 4 | 14 | 3 | 14 | 10 | 3 | 3 | 12 | 9 | 2 | 2 | — | 32 |
Swell 3 Height (m) Direction Period (s) | S 12 | — | S 12 | S 12 | S 11 | S 11 | S 13 | — | S 11 | NW 9 | — | WNW 11 | NNW 7 | NW 12 | NW 8 | NW 10 | — | N 11 | — | — | — |
| kJ | 3 | — | 3 | 3 | 2 | 2 | 3 | — | 2 | 13 | — | 11 | 5 | 6 | 3 | 4 | — | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | WNW 4 | NW 4 | NW 4 | W 3 | WNW 4 | — | WNW 7 | NW 5 | — | WNW 5 | NW 5 | NW 5 | WNW 4 | NW 5 | — | WNW 9 | WNW 9 | NNW 6 | WNW 9 | NW 6 |
| kJ | 4 | 23 | 12 | 3 | 4 | 5 | — | 111 | 51 | — | 63 | 19 | 10 | 31 | 32 | — | 188 | 270 | 21 | 222 | 30 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 56 | 983 | 48 | 106 | 463 | 37 | 51 | 310 | 47 | 52 | 464 | 52 | 52 | 458 | 52 | 37 | 478 | 18 | 37 | 157 | 10 |
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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