Surf Forecasts:
Troia surf forecast from 31 Aug 2026:
- Most powerful swell: Monday 7 Sep, 7PM (local time) - 3.5ft (1.1m), 6s period, NW swell with 76 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 Monday (Sep 07) 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 1.3m 10s period and expected on Monday (Aug 31) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Mon 7th Sep) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright, Rusty here, and I'm lookin' at the charts for our stretch of coast. Gotta be straight with you – this is a tough one to write. The next 16 days are looking pretty flat, and I mean *flat*.
We’ve got a long, quiet spell ahead. For the first week or so, from Monday the 31st of August right through to about the 10th of September, there’s barely a ripple to get excited about. Energy readings are hanging around the single digits and low teens for most of that time, with the combined swell energy barely hitting 28 for a brief moment. You're lookin' at tiny 0.3 ft to 1.0 ft swells with periods all over the shop, and it's just not enough to push through. The water’s a balmy 72°, which is a touch warmer than normal for this time of year, but you’ll be doing more floating than surfing.
The only break on the cards is Troia. It’s an inconsistent spot on a good day, and this is definitely not a good day. It’s a beginner wave, but even absolute learners would be struggling to catch a ripple here. The odd bit of offshore breeze on a few mornings keeps the surface clean, but with no swell to work with, it doesn’t matter. There’s a glimmer on the afternoon of Saturday the 5th of September where the wind goes glassy, but the swell is still only 0.3 ft. Pretty soul-crushing.
Things get a tiny bit more interesting on the 7th of September, Monday afternoon. A short-lived 3 ft pulse from the northwest shows up, with a weak 6-second period, and the energy climbs to 66. It’s a cross-shore wind, and the period is so short those waves will be fat and weak. It’s something, but it’s not good. For a more advanced crew, a 3 ft wave is nothing, but with that period, even they won't get much.
After that, the taps turn off again. There are big gaps of several days with zero energy on the charts – from the 8th through the 15th of September, it's essentially flat as a tack, with combined energy readings of 0. The only tiny hiccup is on the 15th of September, Tuesday afternoon, with a 0.7 ft westerly wrap and 5 energy. Honestly, for this area, a blank run like this isn't unusual, but it still stings. The forecasts can always change, but right now, I’d be doing something else with my time.
There are no standouts here. I can’t recommend a single session. Keep the board in the car, but maybe don't even take it off the rack. Keep an eye out for the next system.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Thu morning, min 16°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 40°C on Fri afternoon, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 16 | SW 16 | SSW 15 | SW 15 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SW 13 | SW 13 | WSW 4 | SW 12 | S 12 | NW 4 | S 12 | S 12 | WNW 6 |
Wave Graph | ||||||||||||||||||||
11 | 10 | 22 | 9 | 20 | 21 | 23 | 21 | 20 | 20 | 7 | 7 | 7 | 7 | 6 | 3 | 3 | 3 | 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-off | cross-off | cross-on | cross-off | cross-off | cross-on | off | cross-off | cross-off | on | off | on | on | cross | cross | cross-off |
High Tide | 5:13PM2.85m | 5:34AM2.68m | 5:51PM2.71m | 6:14AM2.57m | 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 | |||||||
Low Tide | 11:23PM0.17m | 11:36AM0.27m | 00:00AM0.31m | 12:19PM0.41m | 00:43AM0.49m | 1:10PM0.58m | 1:37AM0.70m | 2:19PM0.75m | 2:53AM0.87m | 3:56PM0.82m | 4:33AM0.90m | 5:36PM0.71m | ||||||||
— | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | |
8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 8:00 | — | — | 7:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 18 | 24 | 26 | 18 | 25 | 30 | 25 | 33 | 37 | 33 | 36 | 40 | 30 | 34 | 28 | 25 | 30 | 32 | 23 |
Feels °C | 22 | 14 | 21 | 22 | 16 | 25 | 29 | 24 | 31 | 34 | 30 | 32 | 37 | 30 | 33 | 25 | 26 | 29 | 30 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 16 | NW 10 | SSW 15 | SW 15 | SSW 14 | NW 8 | SSW 15 | NW 7 | NW 7 | SSW 14 | NW 4 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 12 | WNW 6 |
11 | 115 | 22 | 9 | 20 | 80 | 23 | 54 | 33 | 20 | 12 | 45 | 45 | 53 | 64 | 71 | 70 | 90 | 35 | 49 | |
Swell 2 Height (m) Direction Period (s) | — | SW 16 | W 9 | — | — | SSW 15 | — | SSW 14 | WNW 9 | — | WNW 8 | SW 13 | SW 13 | SW 13 | SW 12 | S 12 | S 12 | NNW 13 | S 12 | WNW 9 |
— | 10 | 6 | — | — | 21 | — | 21 | 8 | — | 28 | 7 | 7 | 7 | 6 | 3 | 3 | 16 | 3 | 26 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 10 | SSW 14 | — | SW 14 | — | SW 13 | SW 13 | — | S 6 | N 15 | S 12 | — | NW 10 |
— | — | — | — | — | — | — | 2 | 20 | — | 7 | — | 7 | 7 | — | 1 | 4 | 3 | — | 38 | |
Wind waves Height (m) Direction Period (s) | NW 9 | NW 6 | NW 9 | NW 9 | NW 9 | NNE 2 | NW 8 | — | — | NW 9 | — | — | — | WSW 4 | — | — | NW 4 | — | WNW 9 | — |
314 | 88 | 212 | 230 | 190 | 1 | 77 | — | — | 61 | — | — | — | 4 | — | — | 3 | — | 119 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 162 | 317 | 47 | 458 | 60 | 10 | 52 | 10 | 10 | 55 | 10 | 48 | 33 | 52 | 10 | 150 | 33 | 37 | 153 | 33 |
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.











