Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 am 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
18.5°C
2.0° 

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


Coxos surf forecast from 15 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 10AM (local time) - 8ft (2.5m), 14s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 19 Sep, 1AM (local time) - 10ft (3.0m), 15s period, NNW swell with 3,851 kJ wave energy.
  • Next surfable swell (1★+): Saturday 19 Sep, 10AM (local time) - 8ft (2.5m), 14s period with NNW swell.

Best Forecast Surf Conditions for Coxos this week:

The surf forecast for Coxos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 19) at 10AM. The primary swell is predicted to be 2.5m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 3.0m 15s and forecast to arrive on Saturday (Sep 19) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 13s period and expected on Wednesday (Sep 16) at 1AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sat 19th Sep)8ft (2.5m) 14s
Best Surf10AM (Sat 19th Sep)8ft (2.5m) 14s
Most Powerful 1AM (Sat 19th Sep)10ft (3.0m) 15s

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


The Lowdown

It’s pretty grim out here at Coxos for the next stretch, and that’s got me feeling a little flat. We’ve got a good chunk of the week ahead with messy, cross-onshore winds and lumpy, chopped-up surf – not the kind of thing that gets anyone out of bed early. The water’s running at a bit over 64°F, which is a couple of degrees colder than usual for this time of year, so you’ll want the thick enough rubber or a hood if you’re planning any long sessions.

The early days, Tuesday through Friday, are a write-off. Swell’s pushing in at anywhere from 2ft up to 10ft, but it’s all blown out by that northerly wind – strong at times, hitting 45 km/h on Wednesday afternoon. The combined energy is moderate early on (115 to 1494), but the consistency is there, just not the quality. It’s cross-on junk, choppy and messy, with no shape to it. Not worth the paddle.

Then Saturday the 19th swings in with a proper change – the wind finally drops out and turns light offshores from the east at just 10 km/h. That’s where the window opens. Saturday morning is the standout of this whole stretch. We’re looking at 8ft of NW groundswell with a long 14-second period, and the combined energy jumps right up to 2582 – that’s strong. The wave comment says it all: excellent for experienced surfers. Clean lines, well-defined faces, proper power. It’s a reef, so it’ll be holding shape, and with that long interval, paddling out won’t be as punishing. Not one for beginners, mind – over 8ft is expert territory.

Saturday afternoon backs off a touch – 7ft, period dropping to 13 seconds – but the wind swings around to a light cross-on from the WNW. Still decent, but the morning is the pick. Sunday the 20th keeps things clean in the morning, 6ft with an easterly cross-off and 12-second period – very rideable, good conditions – but it’s a step down in size and energy (821). Crowds could be a factor at this spot, as it’s a well-known one, so get on it early.

After that, the energy fades into the middle of the week. Monday the 21st is small – 4ft – clean offshores but the swell’s fading. Then Tuesday the 22nd, the morning goes glassy with 4ft of NW swell at 12 seconds – a fun, mellow session, but not a drawcard. The rest of that week is marginal at best, with the wind turning cross-on again and smaller, weaker swells in the 3-5ft range. Nothing to get excited about.

Then, out of nowhere, look at Thursday the 26th – a pretty sizeable push of WNW groundswell arrives at 7ft, with a 15-second period. The energy’s right back up (2340). But here’s the kicker – the wind is back up too, strong from the north at 30 km/h, cross-on and lumpy. So it’s messy. Big and messy. If you’re keen and on an advanced shortboard, you might find some inconsistent power in between the chaos, but it’s not going to be clean. It’s more of a promise than a reality. After that, it fades out again – small and junky into Sunday the 29th and Monday the 30th.

So the standout here is clearly Saturday morning, the 19th. Get up early, beat the crowd, and enjoy that clean, powerful NNW swell at Coxos. That’s the one worth waiting for.

Rusty

Short Range Forecast

Mostly dry. Warm (max 21°C on Thu morning, min 17°C on Tue night). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Sun morning, min 18°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri afternoon, calm by Sun night).

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
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
4
4
3
3
2
2
2
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
NNW
10
1.2
NNW
5
2.2
NNW
7
3
NNW
9
3
NNW
9
3.5
NNW
10
2.2
NW
10
2.5
NNW
9
3
NNW
9
2.5
NNW
9
2.2
NNW
8
3
NNW
15
2.5
NNW
14
2.2
NNW
13
2
NNW
13
1.7
NNW
12
1.6
NNW
11
1.3
NNW
10
1.1
NW
10
0.8
NW
13
1.3
NW
12
Wave Graph
Metric surfscale
Energy kJ
63
74
513
1586
1494
2179
1009
1126
1266
975
627
3851
2582
1752
1230
821
606
361
220
253
520
Wind (km/h)
25
N
30
N
40
N
40
N
45
N
40
N
30
NNE
35
N
35
N
25
N
30
NNW
20
NNE
10
E
10
WNW
15
NNE
5
E
15
NW
10
N
5
ESE
15
W
10
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-off
cross-on
cross-on
cross-off
on
cross-on
off
cross-on
cross-on
High Tide
6:02PM2.62m
6:18AM2.55m
6:39PM2.37m
6:56AM2.36m
7:22PM2.13m
7:44AM2.16m
8:22PM1.92m
8:58AM2.00m
10:00PM1.81m
10:42AM1.99m
11:40PM1.88m
12:03PM2.12m
00:41AM2.05m
Low Tide
11:48AM0.36m
00:04AM0.50m
12:25PM0.57m
00:38AM0.73m
1:07PM0.80m
1:19AM0.95m
2:02PM1.01m
2:18AM1.13m
3:32PM1.14m
4:00AM1.22m
5:23PM1.11m
5:40AM1.12m
6:33PM0.94m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:18
7:20
7:20
7:22
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:46
7:45
7:43
7:42
7:39
7:38
7:37
 mm
Temp °C
20
20
18
18
19
19
21
20
18
21
21
22
27
24
25
29
27
25
29
25
24
Feels °C
17
17
13
11
12
14
15
15
13
17
17
19
25
22
23
28
25
22
28
23
22
  • 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 Coxos Surf forecast

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

Are you planning a holiday in Ericeira? If you are looking for accommodation near Coxos, camping, hotels and holiday cottages in Ericeira, consider staying in Torres Vedras which is 18 km (11 miles) away. Other places in and around Ericeira where you can find information about places to rent, and car hire include Sintra which is 22 km (14 miles) away, Rio de Mouro, Cacem and Loures.

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