
Surf Forecasts:
Troia surf forecast from 12 Sep 2026:
- Most powerful swell: Tuesday 15 Sep, 7PM (local time) - 4.5ft (1.3m), 6s period, NW swell with 107 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 1.3m 6s and forecast to arrive on Tuesday (Sep 15) 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 2.0m 10s period and expected on Wednesday (Sep 16) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Tue 15th Sep) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright, let's get real about Troia. I've been staring at the charts for this stretch, and I gotta be straight with you: it's looking pretty flat. This isn't a time to get amped.
For the next 16 days, we're talking about a whole lot of tiny, weak swell. Honestly, from now right through to the end of the month, there's just no real surf to speak of. The wave energy is barely registering, with most readings sitting between 1 and 9 – that's about as weak as it gets. You see that combined energy number, like a 6 or a 3, and it just confirms the story: it's a lake out there. There's a massive gap with nothing worth paddling out for, so don't get your hopes up. The swell direction is swinging from the South round to the Northwest, but none of it has any push. Periods are all over the shop, from a super-short 2 seconds up to a long 16 seconds, but when the swell height is just 0.3 ft or 0.7 ft, it doesn't matter how long the period is. You can't surf air.
This is one of those times when the area just goes quiet. It's not unusual for Troia to have a blank run like this. The only real highlight would be the rare glassy conditions, like we see on Sunday the 13th morning and Monday the 14th morning. The wind is dead calm or light offshore from the SSE or South, making the water look like a mirror. But even then, the waves are only 0.3 ft to 0.7 ft. You could maybe practice your pop-up on a foamie, but that's about it.
We do see a little bump on Tuesday the 15th afternoon – a 4 ft swell from the Northwest with a short 4-second period. That combined energy hits 70, which is about the most we see all forecast. But the wind is a moderate cross-shore at 16 mph, making it a messy cross-chop. For a break that's only "fairly exposed" to the southwest, a short-period NW windswell is gonna be junky. Honestly, with that wind and the weak, short-period nature of the swell, this setup looks more interesting for kite surfing than for a paddle surfer looking for a decent wave.
Then we get a few more mornings with clean, offshore winds (like the 17th, 18th, and 19th) but again, the swell is a pathetic 0.3 ft. It's a tease.
So, here's the brutal truth: there are no standouts. No best sessions. The water temp is about average for the time of year, but that doesn't help when there's nothing to ride. If you're a beginner looking to learn in flat, clean conditions, maybe those glassy mornings are your window. For anyone else, save your energy. Forecasts can change, but right now, this is a solid two-week rest period.
- Rusty
Short Range ForecastMostly dry. Warm (max 33°C on Sat afternoon, min 21°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Thu afternoon, min 17°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the NNW by Wed afternoon). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | S 13 | S 12 | WNW 9 | SSW 2 | S 11 | NW 11 | S 11 | WNW 9 | NW 10 | NW 4 | NW 5 | NW 7 | S 13 | S 12 | S 12 | S 12 | S 16 | S 16 | S 15 | S 14 | S 14 |
Wave Graph | |||||||||||||||||||||
3 | 3 | 0 | 1 | 2 | 0 | 2 | 0 | 0 | 6 | 70 | 0 | 3 | 3 | 3 | 3 | 5 | 5 | 4 | 4 | 4 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | glassy | glassy | cross-on | cross-on | glassy | on | glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | on | cross-off |
High Tide | 4:04PM3.07m | 4:25AM2.85m | 4:40PM2.95m | 4:59AM2.77m | 5:15PM2.76m | 5:32AM2.64m | 5:51PM2.53m | 6:07AM2.47m | 6:28PM2.29m | 6:45AM2.27m | 7:11PM2.05m | 7:33AM2.08m | 8:12PM1.85m | ||||||||
Low Tide | 9:50AM0.03m | 10:15PM-0.01m | 10:26AM0.08m | 10:48PM0.11m | 11:01AM0.19m | 11:19PM0.28m | 11:36AM0.35m | 11:51PM0.49m | 12:13PM0.55m | 00:25AM0.71m | 12:54PM0.77m | 1:06AM0.92m | 1:49PM0.98m | 2:06AM1.10m | |||||||
7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | |
— | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 33 | 28 | 29 | 32 | 27 | 28 | 31 | 27 | 30 | 30 | 20 | 26 | 29 | 21 | 29 | 31 | 21 | 29 | 29 | 22 |
Feels °C | 30 | 30 | 28 | 28 | 29 | 27 | 27 | 29 | 25 | 28 | 25 | 18 | 24 | 24 | 18 | 25 | 25 | 17 | 25 | 26 | 19 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 12 | NW 11 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 12 | WNW 11 | S 13 | S 12 | NW 12 | NW 11 | NW 10 | NW 10 | NW 10 | NW 15 | NW 9 |
64 | 81 | 47 | 46 | 96 | 145 | 48 | 46 | 31 | 23 | 14 | 46 | 3 | 3 | 52 | 462 | 313 | 213 | 130 | 9 | 97 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 12 | NW 4 | NW 10 | WNW 9 | WNW 3 | NW 11 | NW 11 | NW 4 | NW 10 | — | — | — | — | S 12 | S 12 | S 12 | S 16 | S 15 | S 14 | NW 14 |
3 | 3 | 9 | 26 | 26 | 2 | 58 | 41 | 4 | 14 | — | — | — | — | 3 | 3 | 3 | 5 | 4 | 4 | 114 | |
Swell 3 Height (m) Direction Period (s) | S 13 | — | NNW 8 | NW 14 | S 11 | — | S 11 | — | NW 10 | NW 13 | — | — | — | — | — | — | S 16 | S 11 | — | S 11 | S 14 |
3 | — | 6 | 29 | 2 | — | 2 | — | 25 | 7 | — | — | — | — | — | — | 5 | 2 | — | 2 | 4 | |
Wind waves Height (m) Direction Period (s) | — | WNW 2 | — | SSW 2 | W 2 | — | — | — | — | NW 4 | NW 5 | NW 7 | NW 9 | NW 10 | NW 10 | NNE 2 | — | — | — | NW 9 | — |
— | 1 | — | 1 | 1 | — | — | — | — | 6 | 70 | 156 | 499 | 708 | 542 | 1 | — | — | — | 138 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 51 | 10 | 10 | 110 | 29 | 10 | 47 | 18 | 18 | 985 | 478 | 618 | 217 | 56 | 37 | 160 | 33 | 18 | 52 | 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.










