
Surf Forecasts:
Troia surf forecast from 5 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 10PM (local time) - 3.5ft (1.0m), 5s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 7PM (local time) - 4.5ft (1.3m), 5s period, NW swell with 92 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 10PM (local time) - 3.5ft (1.0m), 5s 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 Wednesday (Sep 09) at 10PM. The primary swell is predicted to be 1.0m and 5s 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 1.3m 5s and forecast to arrive on Wednesday (Sep 09) 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 1.5m 11s period and expected on Monday (Sep 07) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 9th Sep) | 3.5ft (1.0m) 5s |
| Best Surf | 10PM (Wed 9th Sep) | 3.5ft (1.0m) 5s |
| Most Powerful | 7PM (Wed 9th Sep) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Right, folks, Rusty here. I’ve been staring at the charts for Troia, and I’ve got to be straight with you: it’s looking flat as a pancake for the next couple of weeks. There’s barely a ripple to get excited about. The whole 16-day window is a write-off, but let’s walk through it anyway so you know what you’re missing.
The trouble starts from the get-go. Saturday the 5th and Sunday the 6th offer nothing but tiny, dribbly lines – we’re talking 0.3 ft of swell, if you can even call it that. The combined energy is a measly 6, which is barely a whisper. A light S wind on Saturday morning will mess up the surface, and by Monday the 7th, the swell flatlines completely. The wind swings to a cross-offshore N, but it doesn’t matter because there’s no wave to surf.
We stay in drought mode right through until Wednesday the 9th, when a tiny pulse of NW swell shows up. It’s just 2 ft first thing, with a weak 5-second period. The combined energy climbs to a still-puny 16, but the wind is clean cross-offshore from the NNW. It’s a small window of clean, knee-high slop for the absolute beginner, but it’s not really surfable. By the afternoon, the wind swings cross-shore and the period drops further, making it a total mess.
After that, it’s back to nothing. The 10th, 11th, and 12th are flat again. A few tiny pulses of 0.3 ft to 1 ft come and go, but with combined energy figures of 10 or less, they’re not worth paddling for. The wind is sometimes clean, sometimes head-on, but it doesn’t matter because there’s no wave.
The 13th of September brings a glassy morning with a whisper of S swell at 0.3 ft and a 12-second period. The water is calm, and it’s dead flat. The 14th is the same story. The 15th, 16th, and 17th are completely flat again – no swell at all, just clean, empty water.
Then, on the 18th of September, we get the most interesting moment of the whole outlook. A glassy morning with a 2 ft swell from the WSW, a 7-second period, and combined energy of 34. It’s still small, but the wind is glassy, so conditions are clean. The afternoon pushes it to 3 ft, but the wind swings cross-onshore and chops it up. It’s not a good day, just the least bad of a terrible run.
The final day, the 20th, is a write-off with a fresh 19 mph cross-offshore wind and 0.3 ft of swell. The whole stretch is a dud, plain and simple. For Troia, a blank run like this is more normal than a surprise. Don’t hold your breath; the charts can change, but right now, you’re better off doing something else.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Sat afternoon, min 19°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Thu afternoon, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 12 | SW 12 | WNW 9 | S 12 | S 11 | WNW 15 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | NW 10 | NW 9 | NW 5 | NW 5 | NW 5 | NW 12 | NW 12 | W 7 | W 7 | S 14 | W 7 |
Wave Graph | |||||||||||||||||||||
6 | 6 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 65 | 25 | 0 | 0 | 9 | 8 | 4 | 4 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-on | glassy | off | cross-on | glassy |
High Tide | 9:26AM2.17m | 10:24PM2.05m | 11:02AM2.24m | 11:54PM2.16m | 12:19PM2.44m | 1:00AM2.35m | 1:18PM2.69m | 1:51AM2.56m | 2:06PM2.91m | 2:34AM2.72m | 2:48PM3.05m | 3:13AM2.83m | 3:27PM3.11m | 3:50AM2.87m | |||||||
Low Tide | 3:56PM0.82m | 4:33AM0.90m | 5:36PM0.71m | 6:01AM0.76m | 6:48PM0.49m | 7:03AM0.55m | 7:42PM0.26m | 7:52AM0.34m | 8:26PM0.07m | 8:34AM0.17m | 9:05PM-0.04m | 9:13AM0.06m | 9:41PM-0.06m | ||||||||
7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | |
— | 8:00 | — | — | 7:58 | — | — | 7:57 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 33 | 28 | 31 | 33 | 25 | 30 | 31 | 21 | 27 | 29 | 20 | 26 | 29 | 21 | 30 | 32 | 26 | 35 | 37 | 30 |
Feels °C | 30 | 31 | 28 | 30 | 32 | 23 | 27 | 27 | 20 | 23 | 23 | 18 | 26 | 26 | 20 | 29 | 29 | 25 | 33 | 33 | 29 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 11 | NW 6 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | — | NW 9 | WNW 8 | NW 15 | NW 10 | NW 12 | NW 12 | NW 11 | NW 10 | W 9 | NW 5 |
70 | 71 | 70 | 70 | 79 | 56 | 426 | 539 | 450 | 272 | — | 118 | 45 | 8 | 33 | 112 | 66 | 92 | 24 | 2 | 14 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | NW 16 | NW 13 | NW 12 | WNW 18 | WNW 15 | NW 9 | — | NW 9 | — | — | — | — | — | NW 13 | W 8 | WNW 7 | W 7 | W 7 | S 14 | W 7 |
6 | 10 | 63 | 89 | 31 | 246 | 81 | — | 3 | — | — | — | — | — | 41 | 31 | 18 | 9 | 8 | 4 | 4 | |
Swell 3 Height (m) Direction Period (s) | — | SW 12 | NW 4 | S 12 | S 11 | NW 10 | NW 10 | — | — | — | — | — | — | — | NW 6 | — | — | W 10 | W 9 | — | NNW 7 |
— | 6 | 4 | 3 | 3 | 53 | 15 | — | — | — | — | — | — | — | 10 | — | — | 2 | 2 | — | 5 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WNW 9 | — | — | — | NW 7 | — | NW 10 | — | NW 5 | NW 5 | NW 5 | — | WNW 7 | — | — | WNW 7 | — |
— | — | — | — | 129 | — | — | — | 111 | — | 281 | — | 16 | 65 | 25 | — | 62 | — | — | 31 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 47 | 10 | 10 | 157 | 18 | 33 | 310 | 47 | 153 | 331 | 52 | 52 | 488 | 37 | 10 | 160 | 10 | 28 | 160 | 48 |
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.










