Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 pm 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
18.8°C
1.7° 

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


Coxos surf forecast from 11 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 7AM (local time) - 2ft (0.6m), 14s period, NW swell with cross-offshore winds.
  • Most powerful swell: Thursday 17 Sep, 4PM (local time) - 7ft (2.2m), 10s period, NNW swell with 1,050 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 7AM (local time) - 2ft (0.6m), 14s period with NW 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 Sunday (Sep 13) at 7AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.9m and 7s. 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 2.2m 10s and forecast to arrive on Thursday (Sep 17) at 4PM. 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 11s period and expected on Sunday (Sep 13) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 13th Sep)2ft (0.6m) 14s
Best Surf 7AM (Sun 13th Sep)2ft (0.6m) 14s
Most Powerful 4PM (Thu 17th Sep)7ft (2.2m) 10s

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


The Lowdown

Second text using imperial units

Alright folks, Rusty here. Let's have a proper look at what's cooking for Coxos over the next couple of weeks. We've got a bit of a mixed bag, but there are some gems hidden in there if you're patient.

Right now, the forecast is a bit of a slow burn. We’re looking at a whole lot of northerly wind, which is cross-on at Coxos, messing up the shape. Thursday the 10th and Friday the 11th are write-offs with that fresh cross-onshore breeze and lumpy, choppy conditions. The swell is small too, around 3 ft to 4 ft with weak to moderate wave energy (238-490). It’s not worth paddling out for.

Saturday the 12th is still a no-go for me. A light cross-on breeze on Saturday morning is still creating wind ripples, and the swell period is a short 7 seconds. That’s just crumbly, low-energy stuff. Saturday afternoon has a bit more period but the wind switches onshore. No good.

We finally get a break in the wind on Sunday the 13th morning. The southerly goes glassy, with a 3 ft groundswell from the NW and a nice 13-second period. The combined energy jumps to a moderate 384, and it’s glassy. That’s your first real window. Conditions are clean for a reef break, but the swell is small, so bring your groveller.

Monday the 14th morning looks almost as good – another glassy session with 3 ft of NW swell at 11 seconds. Clean lines, easy paddling. Monday afternoon, the wind shifts back cross-on and the quality drops.

From Tuesday the 15th through to Saturday the 19th, it’s a grim repeat. The north wind is back, gusting 12-25 mph, creating cross-on chop that’ll make it feel like a washing machine. The swell builds from 6 ft into the 7 ft range, with moderate to strong wave energy (488-1050), but that onshore wind will ruin it. It’s going to be messy and lumpy. Honestly, it might be more interesting for kite surfers than paddle surfing during that stretch.

Now, here’s where the outlook turns interesting. Sunday the 20th morning is a real standout. The wind goes light and cross-off from the ENE, with a solid 3 ft swell from the NNW at a long 12 seconds. Combined energy is a strong 544, and it’s described as clean. This is the first legitimately clean session of the whole period.

But the real prize is Monday the 21st morning. We get a 5 ft groundswell from the NNW with a very long 13-second period, combined energy of 809, and glassy conditions with light southerly wind. This is your top pick. The swell direction is spot on from the NNW, which is the optimum for Coxos. The only caveat is that with that long period, the sets will be clean but spaced out. The size is just right for confident intermediate surfers. If you can only pick one session, this is it.

Tuesday the 22nd and Wednesday the 23rd keep the hopes up. Tuesday morning has a clean 4 ft swell from the NW with cross-off wind. Wednesday the 23rd morning has another glassy session with 5 ft of NW swell at 13 seconds and very strong energy (862). Both are excellent calls.

The very end of the forecast, around Friday the 25th and Saturday the 26th, shows a big pulse of swell hitting over 8 ft. That’s expert territory, and the wind is marginal, but the energy readings are massive (2253 and 1539). Keep an eye on that one, but treat it as a long-range possibility – conditions change a lot for a spot that far out.

So, to wrap it up: Sunday the 13th morning is your first clean but small window. Skip the whole middle of the week due to wind. The absolute standouts are Monday the 21st morning and Wednesday the 23rd morning for glassy, long-period groundswell. Mark your calendar.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Sun morning, min 17°C on Thu night). Winds decreasing (fresh winds from the N on Thu afternoon, calm by Sat night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Sun afternoon, min 16°C on Tue night). Winds increasing (calm on Mon morning, strong winds from the N by Tue night).

Thu
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
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
2
0
1
2
2
2
2
1
0
0
0
0
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)
1.2
NNW
11
1
NNW
10
0.9
NNW
10
1.1
NNW
6
1.1
NNW
6
1.2
NNW
7
1.1
NNW
7
1.1
NNW
8
0.9
NW
13
1.3
NW
12
1.3
NW
12
1
NW
11
0.9
NW
11
0.7
NW
10
0.6
NNW
10
0.9
NNW
9
1.6
NNW
6
2.4
NNW
8
2.2
NNW
9
2.4
NNW
9
Wave Graph
Metric surfscale
Energy kJ
328
209
137
86
85
148
118
128
290
465
427
246
172
104
63
140
185
801
749
873
Wind (km/h)
30
N
30
N
20
N
30
NNW
15
N
10
NNE
15
NNW
15
NNE
5
S
10
W
5
NNE
5
S
15
WNW
15
N
20
N
30
N
35
N
40
N
35
N
30
N
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
3:25AM2.92m
3:38PM3.21m
4:01AM2.96m
4:15PM3.17m
4:36AM2.94m
4:51PM3.04m
5:10AM2.86m
5:26PM2.85m
5:44AM2.73m
6:02PM2.62m
6:18AM2.55m
6:39PM2.37m
Low Tide
9:16PM-0.04m
9:25AM0.07m
9:53PM-0.07m
10:02AM0.03m
10:27PM-0.02m
10:38AM0.08m
11:00PM0.11m
11:13AM0.19m
11:32PM0.29m
11:48AM0.36m
00:04AM0.50m
12:25PM0.57m
00:38AM0.73m
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>
7:13
7:15
7:16
7:16
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:54
7:52
7:51
7:50
7:47
7:46
7:45
 mm
Temp °C
20
18
22
21
19
26
24
24
28
27
25
27
24
21
21
20
18
19
19
19
Feels °C
16
14
19
17
18
25
23
22
26
25
24
26
22
20
19
17
14
14
14
15
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Coxos:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Coxos surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest