Foz do Arelho Surf Break

Lat Long: 39.44° N 9.23° W

Foz do Arelho Surf Forecast and Surf Report

Issued: 12 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Foz do Arelho sea temperature is
19.7°C
0.5° 

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


Foz do Arelho surf forecast from 31 Aug 2026:

  • Best quality surf: Sunday 6 Sep, 7AM (local time) - 4.5ft (1.4m), 12s period, NW swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 10PM (local time) - 6ft (1.9m), 10s period, NW swell with 725 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 7AM (local time) - 4.5ft (1.4m), 12s period with NW swell.

Best Forecast Surf Conditions for Foz do Arelho this week:

The surf forecast for Foz do Arelho over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 06) at 7AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Foz do Arelho in the next 16 days are 1.9m 10s and forecast to arrive on Monday (Aug 31) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 6th Sep)4.5ft (1.4m) 12s
Best Surf 7AM (Sun 6th Sep)4.5ft (1.4m) 12s
Most Powerful10PM (Mon 31st Aug)6ft (1.9m) 10s

Table - best surf conditions forecast for Foz do Arelho over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.

Right off the bat, I gotta be straight with you – this is a real tough stretch for Foz do Arelho. We’re lookin’ at a long, drawn-out run of poor conditions that’ll last from the 31st of August all the way through to the 5th of September. That’s a solid week of nothing worth paddling out for. The wind is mostly smackin’ us from the north, cross-onshore, and the waves are just messy and lumpy. Energy levels are weak to moderate at best, but the quality is just gone.

Finally, we get a glimmer of hope on Sunday the 6th of September. The morning session is the one to circle. The wind drops to nothing – glassy conditions – and that’s a massive positive. Swell is a clean 4ft from the NNW, period at 12 seconds, which is that nice groundswell push. This is where you want to be. The water temp is about average for this time of year. It’s an inconsistent break, so don’t expect a wave every minute, but when they come, they’ll be clean. You might have some company – crowds are possible here.

After that Sunday morning window, it gets messy again. The wind swings back northerly and cross-onshore for days. There’s a little spike in energy, but the wind’s just ruining the surface. The 9th of September sees some bigger swell – 6ft from the NNW – but the period is short (7 seconds) and the wind is onshore, so it’s choppy and tough. That’s more kite-surfing territory than paddle surfing.

The next real window of opportunity shapes up on Monday the 14th of September. The morning session gets a clean cross-offshore wind from the SSE, with a 4ft WNW swell (9-second period). The conditions will be clean. Then on Tuesday the 15th of September morning, we get a proper offshore wind from the SSE, 3ft swell from the WNW, and a nice long 12-second period. The wind will be clean, moderate offshore, and the waves should have some shape. This one’s a bit further out, so keep an eye on it, but it looks promising.

So, to sum it up: the only standout day is Sunday the 6th of September morning – glassy, clean, and rideable. The 14th and 15th of September mornings also look good for clean conditions, but they’re a week and a half away, so don’t book the trip just yet. The rest of the time, it’s a battle with the wind.

Stay stoked, and check the charts before you head out.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 19°C on Mon morning, min 17°C on Tue night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sat morning, min 17°C on Thu night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
3
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)
1.3
NW
9
1.4
NW
10
1.9
NW
10
1.8
NW
9
1.8
NW
9
1.7
NNW
9
1.4
NNW
8
1.2
NNW
7
0.8
NW
8
1.1
NNW
7
0.8
NNW
7
0.6
WNW
9
0.6
WNW
8
0.8
WNW
10
0.8
WNW
9
0.8
WNW
9
0.8
WNW
9
1.4
NW
13
1.3
NNW
12
1.2
NNW
11
1
NNW
11
Wave Graph
Metric surfscale
Energy kJ
275
384
710
516
516
421
237
147
67
117
62
49
45
120
106
103
94
623
464
323
234
Wind (km/h)
30
N
30
N
25
N
30
N
30
N
25
N
20
N
20
N
15
N
5
NNW
15
N
15
NNE
15
N
20
N
15
NNE
15
NNE
15
N
15
N
0
NW
20
N
15
N
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
cross-on
cross-on
High Tide
5:13AM2.79m
5:28PM2.91m
5:48AM2.73m
6:05PM2.77m
6:28AM2.63m
6:49PM2.58m
7:15AM2.48m
7:43PM2.36m
8:15AM2.32m
8:58PM2.17m
9:39AM2.23m
10:35PM2.10m
11:14AM2.29m
00:06AM2.20m
Low Tide
11:14AM0.18m
11:38PM0.17m
11:51AM0.27m
00:15AM0.31m
12:33PM0.41m
00:58AM0.49m
1:25PM0.58m
1:52AM0.70m
2:33PM0.76m
3:07AM0.87m
4:09PM0.84m
4:46AM0.91m
5:48PM0.73m
part cloud
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:03
7:05
7:05
7:07
7:07
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:07
8:07
8:05
8:04
8:01
8:00
 mm
Temp °C
19
19
18
19
19
18
19
19
18
21
21
19
20
21
19
26
24
24
29
29
22
Feels °C
16
15
14
16
16
15
18
17
17
21
20
19
19
20
18
24
23
23
29
26
20
  • Map Icons:
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  • 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 Foz do Arelho Surf forecast

The above surf forecast table for Foz do Arelho provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Foz do Arelho can be found by selecting the local surf guide option on the grey menu. Our Foz do Arelho 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 (Foz do Arelho) 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 Foz do Arelho 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.

Foz do Arelho is 9 km (6 miles) from Caldad da Rainha. If you plan a holiday in Peniche, look for hotels and other accommodation in Caldad da Rainha. Caldad da Rainha has rooms for a wide range of budgets as well as car hire and transport links.

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