
Surf Forecasts:
Troia surf forecast from 31 Jul 2026:
- Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 4.5ft (1.3m), 5s period, WNW swell with 88 kJ wave energy.
Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 16 days are 1.3m 5s and forecast to arrive on Wednesday (Aug 05) 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 8s period and expected on Saturday (Aug 01) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Wed 5th Aug) | 4.5ft (1.3m) 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 outlook for Troia over the next 16 days is a tough one. We're looking at a long stretch of flat to tiny, messy conditions, so don't expect any magic.
Right now, and for the foreseeable future, it's a waiting game. The first few days, starting Friday the 31st of July, are showing next to nothing. We're talking about a tiny 0.3ft to 3ft windswell with a pathetic 4-second period, all blown out by onshore winds. The water is a balmy 74°, which is much warmer than normal for this time of year, but that's no consolation when there's no surf.
This flat spell drags on for days. Saturday and Sunday are completely flat, with clean conditions but zero waves. The energy in the water is barely a whisper – the combined swell energy is a measly 3 or 11 in the early days. Monday and Tuesday are the same story – tiny, weak, and poor. Wednesday the 5th of August stays clean but flat in the morning, and even when the swell tries to show up in the afternoon with a 4ft swell from the WNW, it's a short-period, weak windswell (energy of 56) and chopped up by a cross-shore wind.
The only hint of something happening comes on Thursday the 6th of August. The morning sees a small 2ft swell from the WNW (energy of 32) with clean conditions and a cross-offshore wind. That's the best we're going to get for a while, but it's still pretty weak. The afternoon picks up a bit more size to 4ft with a 5-second period, but the wind is a fresh 19 mph cross-offshore, which will keep it bumpy. The energy is still only 71, so it's not a day to get excited about. If you're desperate for a paddle, this Thursday morning is your best bet, but keep expectations low.
The rest of the first week and into the second is more of the same – flat spells mixed with tiny, weak, poorly shaped windswell. The combined energy occasionally climbs into triple digits, like on Sunday the 9th of August (energy of 128) and Monday the 10th (energy of 105), but with a 4ft to 5ft short-period swell and fresh cross-shore winds, it's going to be lumpy and messy. This is more of a kite-surfing scenario than a surfing one.
The second week continues the pattern. Troia is simply not a consistent spot for this time of year, and this forecast is a classic example of a blank run. There's nothing that qualifies as a standout. If you're determined to get wet, keep an eye on the morning sessions with the lightest cross-offshore winds, but don't hold your breath for anything clean or with any power.
- Rusty
Short Range ForecastMostly dry. Warm (max 30°C on Sat afternoon, min 18°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Wed afternoon, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 12 | NW 4 | NW 5 | WNW 9 | WNW 8 | NW 5 | NW 4 | WNW 8 | NW 4 | W 9 | S 14 | S 13 | S 13 | S 13 | NW 4 | W 8 | WNW 4 | NW 5 | WNW 6 | WNW 5 | NW 4 |
Wave Graph | |||||||||||||||||||||
3 | 22 | 29 | 0 | 0 | 28 | 9 | 0 | 7 | 0 | 4 | 3 | 3 | 3 | 6 | 0 | 50 | 39 | 29 | 68 | 16 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross | cross-on | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross |
High Tide | 4:36PM2.81m | 4:55AM2.55m | 5:08PM2.81m | 5:28AM2.54m | 5:41PM2.75m | 6:03AM2.50m | 6:18PM2.66m | 6:43AM2.44m | 7:00PM2.53m | 7:29AM2.35m | 7:51PM2.37m | 8:27AM2.25m | 8:58PM2.23m | ||||||||
Low Tide | 10:19AM0.31m | 10:48PM0.25m | 10:52AM0.30m | 11:21PM0.25m | 11:25AM0.33m | 11:54PM0.29m | 12:01PM0.40m | 00:31AM0.37m | 12:42PM0.50m | 1:13AM0.49m | 1:31PM0.62m | 2:05AM0.63m | 2:35PM0.74m | 3:13AM0.75m | |||||||
6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | |
— | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:42 | — | — | 8:40 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 29 | 23 | 29 | 30 | 21 | 27 | 28 | 21 | 23 | 24 | 21 | 25 | 26 | 22 | 27 | 29 | 20 | 30 | 32 | 21 |
Feels °C | 25 | 27 | 21 | 27 | 28 | 19 | 25 | 24 | 19 | 21 | 22 | 23 | 23 | 23 | 21 | 25 | 24 | 17 | 27 | 26 | 18 |
Swell 1 Height (m) Direction Period (s) | NW 9 | WNW 11 | W 10 | WNW 9 | W 9 | W 9 | W 9 | W 10 | W 10 | W 9 | W 9 | WNW 9 | WNW 9 | W 8 | WNW 8 | W 8 | S 12 | WNW 10 | WNW 10 | S 13 | WNW 10 |
19 | 13 | 67 | 106 | 45 | 56 | 55 | 68 | 48 | 43 | 42 | 101 | 103 | 92 | 90 | 61 | 3 | 35 | 33 | 3 | 31 | |
Swell 2 Height (m) Direction Period (s) | W 12 | — | N 10 | N 9 | NW 8 | NW 8 | W 11 | NNW 8 | N 7 | WNW 3 | S 14 | S 13 | S 13 | S 13 | NW 10 | WNW 10 | NW 9 | WNW 7 | NNW 8 | — | NW 8 |
3 | — | 2 | 2 | 3 | 2 | 2 | 6 | 1 | 1 | 4 | 3 | 3 | 3 | 4 | 20 | 23 | 10 | 7 | — | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NNW 9 | — | — | — | S 15 | — | N 7 | — | N 8 | N 8 | S 12 | NW 10 | S 12 | NNW 9 | S 12 | — | NW 9 |
— | — | — | — | 7 | — | — | — | 4 | — | 1 | — | 1 | 1 | 3 | 4 | 3 | 7 | 3 | — | 3 | |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 4 | NW 5 | NW 6 | WNW 8 | NW 5 | NW 4 | WNW 8 | NW 4 | — | — | — | — | — | NW 4 | — | WNW 4 | NW 5 | WNW 6 | WNW 5 | NW 4 |
4 | 22 | 29 | 29 | 103 | 28 | 9 | 125 | 7 | — | — | — | — | — | 6 | — | 50 | 39 | 29 | 68 | 16 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 851 | 10 | 52 | 488 | 37 | 157 | 964 | 51 | 129 | 463 | 47 | 47 | 110 | 37 | 52 | 881 | 75 | 169 | 979 | 191 |
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.











