Troia Surf Break

Lat Long: 38.45° N 8.86° W

Troia Surf Forecast and Surf Report

Issued: 6 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Troia sea temperature is
24.0° C
3.2° 

Troia surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Troia surf forecast from 17 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 1AM (local time) - 3ft (0.9m), 6s period, NW swell with cross-offshore winds.
  • Most powerful swell: Friday 21 Aug, 7PM (local time) - 4.5ft (1.4m), 5s period, NW swell with 107 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 1AM (local time) - 3ft (0.9m), 6s 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 Sunday (Aug 23) at 1AM. The primary swell is predicted to be 0.9m and 6s period. 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 1.4m 5s and forecast to arrive on Friday (Aug 21) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 8s period and expected on Friday (Aug 21) at 4PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 23rd Aug)3ft (0.9m) 6s
Best Surf 1AM (Sun 23rd Aug)3ft (0.9m) 6s
Most Powerful 7PM (Fri 21st Aug)4.5ft (1.4m) 5s

Table - best surf conditions forecast for Troia over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s lined up for our local stretch.

To be straight with you, we’ve got a lean run ahead. The next couple of weeks are dominated by tiny, weak swells and onshore wind, leaving us with pretty much nothing worth paddling out for. The only break on the cards is Troia, but it’s an inconsistent beginner spot and the ocean’s just not cooperating.

We start Monday, August 17th, with a tiny 0.3ft SW swell, a period of 15 seconds, and a combined energy of just 13. That long period won’t help at a beach break like Troia – it’ll just make it stray and weak. Wind’s light cross from the SE in the morning, but swings onshore SW by afternoon, and it’s game over. Water temp is 75° which is much warmer than normal for this time of year – a solid 6° above average, so that’s unusual.

Tuesday and Wednesday, August 18th and 19th, are more of the same – 0.3ft to 0.7ft from the SSW with onshore wind. Honestly, you’d be better off taking a nap than wrestling that.

Thursday, August 20th, gets a laughable 0.7ft with a period of just 4 seconds in the morning – energy at 1 – it’s basically a bathtub. The afternoon picks up a 13 second period but still only 0.7ft. Not worth your wetsuit.

Friday the 21st sees a bit of a clean-up with a NNW cross-offshore breeze at 12 mph in the morning, but that 0.7ft SSW swell is still not enough to stand up on. Same story for Saturday and Sunday – tiny, weak, messy.

The following week stays flat. From Monday, August 24th right through to Tuesday, September 1st, we’re looking at very long gaps of several days with literally no surfable waves. On August 25th Tuesday afternoon we see a 4ft NW swell with a 4-second period and combined energy of 54 – that chop is more suited to a kite than a surfboard. Same for Wednesday the 26th – another 4ft NW, short period, cross-shore wind. It’s windy, weak, and messy.

The only other tiny pulse comes on September 1st Tuesday morning – 3ft NW, 6-second period, energy 47, with a cross-offshore N wind at 16 mph. The wind’s clean, but the swell has no power or shape for a beginner spot that’s already inconsistent.

There’s nothing here to get excited about, folks. Not a single standout session in the whole 16 days. For an area like this, a blank run happens sometimes. Don’t hold your breath – check back, forecasts can change.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 29°C on Mon morning, min 19°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Thu afternoon, min 17°C on Fri night). Wind will be generally light.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
W
8
0.1
W
9
0.2
SSW
3
0.1
SW
14
0.2
SSW
15
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.2
SSW
13
0.2
SSW
4
0.2
SSW
13
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.2
SSW
13
0.2
SSW
14
0.2
SSW
14
0.9
NW
6
0.2
SSW
13
0.8
WNW
4
0.3
W
9
Wave Graph
Metric surfscale
Energy kJ
8
2
1
7
23
21
20
19
17
1
17
21
21
20
18
20
20
46
18
16
14
Wind (km/h)
5
SE
25
SW
10
S
10
SSW
20
WSW
10
SW
10
SSW
15
SW
5
WNW
10
WSW
10
SW
20
NNW
20
NNW
25
NW
15
NNW
15
NW
25
WNW
10
NNW
10
NW
15
WNW
15
N
Wind State
cross
on
cross-on
cross-on
on
on
on
on
glassy
on
on
cross-off
cross-off
cross
cross-off
cross
cross-on
cross-off
cross
cross
cross-off
High Tide
6:29PM2.62m
6:51AM2.42m
7:10PM2.36m
7:33AM2.24m
7:57PM2.11m
8:26AM2.07m
9:01PM1.91m
9:40AM1.96m
10:32PM1.82m
11:12AM1.96m
00:01AM1.88m
12:26PM2.09m
1:01AM2.02m
Low Tide
12:11PM0.37m
00:36AM0.45m
12:52PM0.57m
1:14AM0.68m
1:38PM0.78m
1:59AM0.89m
2:37PM0.97m
3:02AM1.06m
4:06PM1.07m
4:36AM1.12m
5:45PM1.03m
6:04AM1.04m
6:52PM0.89m
clear
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:50
6:52
6:52
6:54
6:54
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:27
8:25
8:23
8:22
8:22
8:20
8:19
 mm
1
Temp °C
29
26
22
24
25
21
23
24
22
23
25
19
24
25
19
24
25
19
21
22
20
Feels °C
29
24
23
23
23
22
22
23
24
23
21
16
20
20
17
21
21
17
21
20
18
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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