Surf Forecasts:
Troia surf forecast from 1 Sep 2026:
- Best quality surf: Wednesday 2 Sep, 10PM (local time) - 2.5ft (0.8m), 5s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 5 Sep, 4AM (local time) - 5.5ft (1.7m), 6s period, WNW swell with 202 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 10PM (local time) - 2.5ft (0.8m), 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 02) at 10PM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.2m and 15s. 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 1.7m 6s and forecast to arrive on Saturday (Sep 05) at 4AM. 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 10s period and expected on Tuesday (Sep 08) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 2nd Sep) | 2.5ft (0.8m) 5s |
| Best Surf | 10PM (Wed 2nd Sep) | 2.5ft (0.8m) 5s |
| Most Powerful | 4AM (Sat 5th Sep) | 5.5ft (1.7m) 6s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let me be straight with you – the outlook for the next 16 days is a real struggle. We’re looking at a long dry spell with practically nothing to get excited about.
The first recommendation, and pretty much the only one that even flickers to life, is Troia. Right from the start on Tuesday afternoon, we’ve got tiny swell at 0.3 ft from the SW. The water is a touch warmer than normal at 72°, about 3° above average, which is nice for a dip but not for surfing. The combined energy is a measly 9, so there’s no power at all. It’s not until the 7th of September that we see a bit of movement. Monday afternoon brings a 4 ft swell from the NW, but with a short period of 5 seconds and a moderate cross-shore wind, it’s messy and choppy. The energy creeps up to 77, but it’s still weak. That’s followed by a few more days of tiny, poor surf, with the 9th of September offering a 4 ft NW swell again, but the period is still a short 5 seconds and the combined energy is only 65. The wind is cross-off, which keeps it clean, but the waves are too weak and unsurfable.
After that, the forecast is a long, flat gap. From the 11th of September onwards, we’re looking at days of 0.3 ft swell or nothing at all, with the occasional 3 ft NW swell on the 11th and 12th, but those are accompanied by onshore winds and choppy conditions. The combined energy barely reaches 69. The 16th of September is the last gasp, with a 0.3 ft swell from the S and a combined energy of just 3.
There is no standout, no hidden gem, nothing to recommend. The consistency is awful, and the swell is too small and weak to surf. For a beach break like Troia, this setup is more interesting for kite surfing than paddle surfing, if you’re into that. It’s a rough run, but it tends not to stay this poor for long, and forecasts can change. Hang in there.
Rusty.
Short Range ForecastMostly dry. Warm (max 38°C on Thu afternoon, min 16°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 36°C on Fri afternoon, min 21°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 15 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | S 12 | NW 4 | NW 12 | W 19 | NW 5 | WNW 13 | NW 5 | NW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 9 | 20 | 21 | 23 | 21 | 20 | 20 | 7 | 7 | 7 | 7 | 6 | 3 | 8 | 0 | 7 | 35 | 0 | 77 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | off | off | cross-on | off | off | cross-off | off | cross-on | on | off | glassy | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 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 | 12:19PM2.44m | 1:00AM2.35m | |||||||
Low Tide | 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 | 6:01AM0.76m | 6:48PM0.49m | ||||||||
 |  | | | | | |  |  | | |  | | | | | | | | | |
 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — |
 | 8:06 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 8:00 | — | — | 7:58 | — | — | 7:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 18 | 26 | 31 | 26 | 34 | 38 | 33 | 32 | 36 | 31 | 31 | 32 | 30 | 31 | 32 | 27 | 30 | 31 | 21 |
Feels °C | 22 | 16 | 26 | 29 | 25 | 33 | 36 | 33 | 30 | 31 | 28 | 30 | 32 | 30 | 30 | 29 | 26 | 29 | 28 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 14 | NW 8 | SSW 15 | NW 7 | NW 7 | NW 9 | WNW 8 | WNW 8 | WNW 8 | SW 13 | WNW 9 | S 12 | WNW 9 | WNW 9 | NW 11 | WNW 15 | WNW 13 | WNW 12 | — |
| kJ | 9 | 20 | 82 | 23 | 54 | 25 | 37 | 28 | 45 | 45 | 7 | 138 | 3 | 53 | 53 | 80 | 266 | 390 | 405 | — |
Swell 2 Height (m) Direction Period (s) | — | W 8 | SSW 15 | — | SSW 14 | WNW 9 | SSW 14 | NW 3 | SW 13 | SW 13 | — | SW 12 | S 12 | NW 14 | NW 12 | W 19 | NW 10 | NW 10 | — | — |
| kJ | — | 1 | 21 | — | 21 | 8 | 20 | 2 | 7 | 7 | — | 6 | 3 | 31 | 72 | 7 | 53 | 15 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 8 | SSW 14 | — | SW 14 | SW 13 | N 8 | — | S 12 | N 17 | NNW 11 | NW 4 | S 11 | WNW 9 | WNW 8 | — | — |
| kJ | — | — | — | — | 1 | 20 | — | 7 | 7 | 1 | — | 3 | 6 | 12 | 3 | 3 | 16 | 28 | — | — |
Wind waves Height (m) Direction Period (s) | NW 9 | NW 9 | — | NW 8 | — | — | — | — | — | — | WNW 9 | NE 2 | WNW 9 | NW 4 | — | WNW 9 | NW 5 | NW 8 | NW 5 | NW 11 |
| kJ | 206 | 152 | — | 67 | — | — | — | — | — | — | 113 | 1 | 151 | 8 | — | 99 | 35 | 70 | 77 | 524 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 458 | 33 | 10 | 160 | 10 | 10 | 48 | 33 | 10 | 37 | 33 | 37 | 30 | 10 | 10 | 157 | 32 | 47 | 47 | 37 |
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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