Surf Forecasts:
Troia surf forecast from 27 Aug 2026:
- Most powerful swell: Saturday 29 Aug, 7PM (local time) - 4.5ft (1.4m), 5s period, NW swell with 91 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 1.4m 5s and forecast to arrive on Saturday (Aug 29) 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 1.9m 10s period and expected on Friday (Aug 28) at 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Sat 29th Aug) | 4.5ft (1.4m) 5s |
Table - best surf conditions forecast for Troia over the next 16 days.
The Lowdown
G’day, Rusty here. Got some bad news for the Troia crew. Looking at the full 16-day window, we’ve basically got a flat spell locked in with almost nothing worth paddling out for.
There’s one weak pulse of swell on Thursday 27 August, with a lumpy 6ft coming from the west, but it’s wrapping in on a messy cross-onshore breeze at 25 km/h. That setup combined with only moderate wave energy (379) means it’s all chop and no shape — more of a washing machine than a surf. Water temps are sitting around 72°, which feels a touch warmer than normal for this time of year, but that’s the only nice thing I can say about that day.
After that, the surf just dies. From Friday 28 August right through to the end of the forecast period on 11 September, the swell heights barely register — most days showing a flat line or tiny dribbles under 0.7ft. The combined energy readings drop to single or low double digits (0 to 48), so it’s proper flat. Even when the wind goes glassy or offshore — like Saturday 29 August morning with clean cross-offshore conditions, or Friday 4 September morning with dead calm glass — there’s nothing to ride. A few afternoons kick up a tiny 2ft to 4ft west-northwest windswell with a period of just 4 to 5 seconds, but it’s all short-period chop blown onshore.
Troia’s an inconsistent spot at the best of times, and this run confirms it. No standouts, no hidden gems. If you’re desperate for a paddle, the glassy mornings with a slight offshore breeze would be the least frustrating time to sit on a board, but you’ll be waiting for a set that never comes. Honestly, this stretch looks more suited to a beach day than a surf day. Keep an eye on the charts — forecasts can change, and it rarely stays this poor for long.
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Warm (max 28°C on Sat afternoon, min 17°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Sun afternoon, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | W 7 | S 11 | S 11 | WNW 10 | WNW 11 | NW 10 | NW 9 | NW 9 | NW 5 | W 10 | NW 4 | NW 5 | NW 6 | SW 16 | SW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 377 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 31 | 2 | 45 | 30 | 46 | 11 | 10 | 22 | 21 | 20 | 21 | 23 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off |
High Tide | 3:04PM2.78m | 3:23AM2.61m | 3:35PM2.89m | 3:54AM2.69m | 4:06PM2.94m | 4:26AM2.74m | 4:39PM2.92m | 4:59AM2.73m | 5:13PM2.85m | 5:34AM2.68m | 5:51PM2.71m | 6:14AM2.57m | 6:35PM2.52m | ||||||||
Low Tide | 9:16PM0.23m | 9:21AM0.25m | 9:47PM0.13m | 9:52AM0.18m | 10:18PM0.09m | 10:25AM0.15m | 10:49PM0.10m | 10:59AM0.18m | 11:23PM0.17m | 11:36AM0.27m | 00:00AM0.31m | 12:19PM0.41m | 00:43AM0.49m | ||||||||
 |  |  |  | | | | | | | | | | | | | | | | | | |
 | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 8:13 | — | — | 8:12 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 22 | 24 | 20 | 25 | 28 | 21 | 27 | 30 | 22 | 28 | 29 | 20 | 25 | 27 | 18 | 26 | 29 | 21 |
Feels °C | 16 | 16 | 19 | 22 | 22 | 18 | 24 | 25 | 19 | 26 | 27 | 19 | 25 | 24 | 17 | 20 | 21 | 14 | 25 | 27 | 19 |
Swell 1 Height (m) Direction Period (s) | S 11 | W 8 | W 9 | WNW 10 | WNW 11 | NW 10 | NW 9 | — | NW 8 | NW 8 | W 13 | NW 9 | NW 9 | SW 16 | NW 11 | W 9 | SSW 15 | SSW 14 | NW 8 | SSW 15 | NW 8 |
| kJ | 2 | 443 | 509 | 763 | 656 | 400 | 211 | — | 23 | 51 | 3 | 85 | 64 | 11 | 94 | 6 | 21 | 20 | 163 | 23 | 135 |
Swell 2 Height (m) Direction Period (s) | — | S 11 | S 11 | — | — | — | — | — | — | W 10 | — | W 12 | NW 6 | — | WNW 10 | SSW 15 | — | — | SSW 15 | — | SSW 14 |
| kJ | — | 2 | 2 | — | — | — | — | — | — | 2 | — | 3 | 24 | — | 38 | 22 | — | — | 21 | — | 21 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WNW 11 | — | SW 16 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 23 | — | 10 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 7 | — | — | — | — | — | — | NW 9 | NW 5 | NNW 5 | NW 4 | NW 5 | NW 6 | NW 9 | NW 6 | NW 10 | NW 9 | NW 8 | — | NW 8 | — |
| kJ | 377 | — | — | — | — | — | — | 178 | 31 | 9 | 45 | 30 | 46 | 242 | 88 | 231 | 263 | 208 | — | 187 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 463 | 157 | 28 | 10 | 47 | 37 | 47 | 463 | 75 | 47 | 458 | 47 | 33 | 458 | 47 | 162 | 162 | 162 | 60 | 542 | 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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