Surf Forecasts:
Troia surf forecast from 2 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 7PM (local time) - 5ft (1.6m), 5s period, NW swell with 138 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 1.6m 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 1.6m 12s period and expected on Monday (Sep 07) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Wed 9th Sep) | 5ft (1.6m) 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 whole 16-day window for Troia is a flat spell. There are zero good surf options on the table. The first few days bring tiny, weak swell with poor conditions, and then the energy just vanishes. We’re looking at a long stretch from around the 4th of September right through to the 17th where the combined energy dribbles along between 0 and 23 (weak energy), and the wave heights barely tickle 2ft at best. It’s a blank run, and for this area, that’s not unusual—when the Atlantic sits quiet, Troia goes to sleep.
The only flicker of something happens on Thursday morning, the 3rd of September. We get a gentle offshore breeze from the NNE at 9 mph, which will clean things up nicely, but the swell is a pathetic 0.7ft from the SSW with a long 14-second period. That groundswell energy is a measly 20 (weak energy). It’s not surfable for a paddle. Honestly, with that tiny cross-on swell and the wind picking up later, the setup looks more interesting for kite surfing than paddle surfing. The water temperature is 72°, which is a touch warmer than normal for this time of year, so at least the water feels good if you’re just floating.
Don’t hold your breath for the rest of the run. The 5th of September Saturday morning is glassy, but the swell is 0.3ft with just 6 (weak energy). There’s a tiny pulse on the 6th and 7th with some clean cross-off winds, but the swell height barely hits 2ft and the energy maxes out at 34 (weak energy). Nothing to get excited about. The 16th of September Wednesday morning has a fresh cross-off breeze, but the swell is a joke. It’s a flat spell, plain and simple. Forecasts can change, but right now, I’d say leave the board at home.
Rusty
Short Range ForecastMostly dry. Warm (max 38°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Sat afternoon, min 17°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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) | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | S 12 | NW 4 | NW 5 | S 11 | NW 14 | NW 6 | NW 12 | NW 11 | NW 9 | NW 9 | NW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 23 | 21 | 20 | 20 | 18 | 7 | 7 | 7 | 6 | 3 | 11 | 20 | 3 | 0 | 34 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | off | cross-on | glassy | on | cross-on | glassy | glassy | on | glassy | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:35PM2.52m | 7:01AM2.42m | 7:30PM2.31m | 8:02AM2.27m | 8:45PM2.12m | 9:26AM2.17m | 10:24PM2.05m | 11:02AM2.24m | 11:54PM2.16m | 12:19PM2.44m | 1:00AM2.35m | 1:18PM2.69m | 1:51AM2.56m | |||||||
Low Tide | 00:43AM0.49m | 1:10PM0.58m | 1:37AM0.70m | 2:19PM0.75m | 2:53AM0.87m | 3:56PM0.82m | 4:33AM0.90m | 5:36PM0.71m | 6:01AM0.76m | 6:48PM0.49m | 7:03AM0.55m | 7:42PM0.26m | ||||||||
 |  | | |  |  | | | | | | | | | | | | | | | |
 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — |
 | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 8:00 | — | — | 7:58 | — | — | 7:57 | — | — | 7:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 26 | 37 | 38 | 31 | 30 | 32 | 32 | 32 | 31 | 25 | 29 | 31 | 22 | 28 | 30 | 19 | 25 | 26 | 18 |
Feels °C | 29 | 25 | 35 | 34 | 30 | 30 | 31 | 30 | 30 | 28 | 26 | 29 | 29 | 20 | 27 | 25 | 17 | 20 | 20 | 16 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | NW 7 | NW 7 | NW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 11 | WNW 9 | WNW 12 | — | — | — | — | — |
| kJ | 23 | 54 | 18 | 37 | 41 | 38 | 45 | 53 | 53 | 71 | 71 | 88 | 61 | 35 | 292 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | SSW 14 | WNW 9 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | WNW 4 | NW 16 | NW 13 | NW 12 | S 11 | NW 10 | NW 10 | — | — | — | — | — |
| kJ | — | 21 | 8 | 20 | 18 | 7 | 7 | 7 | 7 | 10 | 63 | 89 | 3 | 28 | 4 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | W 10 | SSW 14 | — | N 6 | — | — | — | SW 12 | S 12 | WNW 4 | S 12 | S 11 | NW 14 | — | — | — | — | — | — |
| kJ | — | 2 | 20 | — | 1 | — | — | — | 6 | 3 | 6 | 3 | 2 | 53 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 8 | — | NNE 2 | W 2 | — | — | — | NW 3 | — | WNW 3 | NW 4 | NW 5 | WNW 9 | NW 6 | NW 6 | NW 12 | NW 11 | NW 9 | NW 9 | NW 8 |
| kJ | 67 | — | 1 | 1 | — | — | — | 2 | — | 3 | 11 | 20 | 157 | 62 | 34 | 660 | 487 | 257 | 367 | 284 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 48 | 10 | 10 | 51 | 28 | 48 | 10 | 51 | 10 | 160 | 10 | 37 | 53 | 33 | 153 | 162 | 60 | 153 | 313 | 162 |
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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