Surf Forecasts:
Troia surf forecast from 15 Sep 2026:
- Most powerful swell: Tuesday 15 Sep, 10PM (local time) - 3.5ft (1.1m), 6s period, NW swell with 87 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 1.1m 6s and forecast to arrive on Tuesday (Sep 15) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 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 | 10PM (Tue 15th Sep) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright, mate, I’m going to level with you. The 16-day outlook for Troia is a total dud. We’re talking a full-blown flat spell. There’s no surf on offer, full stop.
From the 15th through the 18th, there’s a pathetic little bump that barely registers. The swell direction is messy, and the size is just nothing. You might see a ripple on Tuesday afternoon, with the energy sitting at 43, but that’s the best it gets, and it’s not saying much. The winds are mostly cross-off or offshore on a few mornings, which would give you clean conditions if there were any waves, but there aren’t.
Then it dies completely. From the 19th through the 30th, the energy readings are almost all single digits, sometimes zero. There’s a glassy morning on the 21st, but it’s dead flat. A couple of afternoons get a bit choppy, but that’s not surf. It’s just wind on flat water.
The water temp on the 15th is 22°, which is a touch warmer than normal for this time of year, but that’s about the only noteworthy thing. There are no standout days, no hidden gems. Nothing.
This is one of those blank runs that can happen around here. If the conditions stay like this, it’s more interesting for kitesurfing than paddle surfing, but even that is a stretch with no waves at all. Forecasts can always change, but based on what I see, don’t bother waxing up.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Thu afternoon, min 16°C on Thu night). Winds increasing (light winds from the NNW on Tue morning, fresh winds from the NNW by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 33°C on Sun afternoon, min 20°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | WNW 8 | NW 5 | NW 6 | S 13 | S 12 | S 12 | S 12 | S 16 | S 16 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 5 | S 4 | WNW 3 | NW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 43 | 0 | 3 | 3 | 3 | 3 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 1 | 3 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | on | cross-on | off | cross-on | glassy | glassy | cross-on | glassy |
High Tide | 5:51PM2.53m | 6:07AM2.47m | 6:28PM2.29m | 6:45AM2.27m | 7:11PM2.05m | 7:33AM2.08m | 8:12PM1.85m | 8:48AM1.93m | 9:50PM1.75m | 10:32AM1.92m | 11:30PM1.82m | 11:53AM2.05m | 00:31AM1.99m | ||||||||
Low Tide | 11:36AM0.35m | 11:51PM0.49m | 12:13PM0.55m | 00:25AM0.71m | 12:54PM0.77m | 1:06AM0.92m | 1:49PM0.98m | 2:06AM1.10m | 3:19PM1.11m | 3:48AM1.18m | 5:13PM1.07m | 5:30AM1.09m | 6:22PM0.91m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — |
 | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 19 | 25 | 27 | 20 | 27 | 31 | 19 | 26 | 30 | 22 | 27 | 29 | 26 | 31 | 33 | 28 | 28 | 31 | 27 |
Feels °C | 26 | 24 | 17 | 22 | 22 | 17 | 22 | 25 | 15 | 23 | 26 | 19 | 24 | 25 | 25 | 31 | 31 | 27 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 12 | WNW 11 | S 13 | S 12 | NW 10 | NW 11 | S 12 | NW 10 | NW 9 | NW 14 | NW 13 | NW 14 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NW 9 |
| kJ | 23 | 14 | 46 | 3 | 3 | 509 | 441 | 3 | 399 | 212 | 32 | 451 | 478 | 335 | 231 | 200 | 127 | 112 | 79 | 59 | 41 |
Swell 2 Height (m) Direction Period (s) | NW 10 | — | — | — | — | NW 12 | S 12 | S 16 | S 16 | S 15 | S 14 | S 14 | S 14 | S 13 | WNW 4 | S 11 | S 11 | NW 4 | S 4 | NW 14 | NW 4 |
| kJ | 14 | — | — | — | — | 23 | 3 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 6 | 2 | 2 | 4 | 1 | 29 | 8 |
Swell 3 Height (m) Direction Period (s) | NW 4 | — | — | — | — | S 12 | — | — | S 11 | N 16 | — | — | — | — | S 13 | S 13 | S 13 | S 5 | NW 15 | S 4 | NW 12 |
| kJ | 3 | — | — | — | — | 3 | — | — | 2 | 5 | — | — | — | — | 3 | 3 | 3 | 2 | 9 | 1 | 54 |
Wind waves Height (m) Direction Period (s) | — | NW 5 | NW 6 | NW 9 | NW 10 | — | — | NW 10 | — | — | NW 9 | — | — | — | — | — | — | — | — | WNW 3 | — |
| kJ | — | 43 | 103 | 449 | 611 | — | — | 362 | — | — | 155 | — | — | — | — | — | — | — | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 52 | 478 | 162 | 618 | 425 | 56 | 37 | 458 | 60 | 33 | 52 | 10 | 10 | 52 | 28 | 10 | 125 | 28 | 10 | 110 | 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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