Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 pm 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
20.3°C
0.1° 

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


Coxos surf forecast from 3 Sep 2026:

  • Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 6ft (1.9m), 11s period, NNW swell with 846 kJ wave energy.

Best Forecast Surf Conditions for Coxos this week:

The most powerful waves expected at Coxos in the next 16 days are 1.9m 11s and forecast to arrive on Wednesday (Sep 09) at 10PM. 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 Friday (Sep 04) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10PM (Wed 9th Sep)6ft (1.9m) 11s

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


The Lowdown

Alright, this is Rusty. Let’s have a look at what’s cookin’ at Coxos.

Right off the bat, I gotta be straight with ya – it’s a pretty bleak run here for the next week and a half. The opening days are mostly a write-off. We’ve got a long gap of pretty ordinary conditions before anything worth paddling out for shows up.

We start on Thursday the 3rd with a small 3ft swell from the NNW, but that cross-shore wind from the NNE at 6 mph just kills it. It’s messy and weak with low energy. Friday the 4th afternoon is the first tiny glimmer. The swell drops to 2ft from the WNW, but the wind goes glassy. It’s surfable, but the wave state is just very ordinary. Saturday and Sunday are no good either – mostly onshore or cross-on breezes picking up and the swell gets lumpy. Sunday the 6th morning sees a bigger pulse of swell, 4ft from the NNW with a period of 12 seconds and some moderate energy, but that cross-on wind ruins it.

Through all of the first week and into the second, we get battered by consistent fresh breezes, mostly from the N and NNW, keeping the ocean chopped up and lumpy. Swell sizes hover between 3ft to 7ft, but it’s just poor. By Tuesday the 8th afternoon, we’ve got a 7ft swell from the NNW, but the wind is a fresh 22 mph cross-on. That’s expert-only territory for size, but the conditions would be so blown out it’s not even worth the drive. Honestly, for a reef like Coxos, this setup looks more interesting for kite surfing than paddle surfing right now.

Then, finally, a light at the end of the tunnel. The standout window hits on Sunday the 13th of September. We wake up to a glassy morning with light airs from the WNW. The swell is a clean 3ft, but the period jumps to a very long 16 seconds. That’s a groundswell with serious energy. This will be a proper, powerful, long-period northwesterly pulse. At a reef like Coxos, which loves that NNW direction, this could be special. The water temp is a normal 69° for this time of year. Just keep in mind, with a period that long, the sets will be clean and powerful, with longer gaps between them – great for paddling out, but you’ll want to be patient in the water. That glassy morning on the 13th is the pick of the whole forecast. After that, conditions start to degrade again with onshore winds returning.

A couple of other slightly better windows pop up, but they’re not standouts. Tuesday the 15th morning is glassy again with a 4ft swell (NNW), but the period is a short 8 seconds, making for less exciting, weaker waves.

So, the takeaway: suffer through the first week and a half. The only true standout is Sunday, the 13th of September, early morning at Coxos. It won't be huge, but that glassy, long-period groundswell hitting the reef just right is a beautiful thing.

Rusty out.

Short Range Forecast

Mostly dry. Warm (max 31°C on Thu afternoon, min 20°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Sun afternoon, min 17°C on Mon night). Mainly fresh winds.

Thu
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
0
0
0
0
2
2
0
0
0
0
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)
0.9
NNW
7
0.7
WNW
9
0.7
WNW
8
0.7
WNW
8
0.8
WNW
9
0.8
WNW
9
0.9
NW
9
1.2
NW
13
1.3
NNW
12
1.2
NNW
11
0.9
WNW
14
1.4
WNW
12
1.5
WNW
11
1.3
WNW
11
1.3
WNW
10
1.6
NNW
7
2
NNW
8
2
NNW
8
1.7
NNW
8
1.9
NNW
11
Wave Graph
Metric surfscale
Energy kJ
77
65
59
59
101
101
120
494
464
323
301
557
553
412
327
219
476
475
327
815
Wind (km/h)
15
NNW
10
NNE
10
NW
10
WSW
15
NE
15
NNE
25
NNW
15
N
15
N
25
NNW
20
N
25
N
30
NNW
30
N
30
N
30
N
30
N
25
N
25
NNW
25
N
Wind State
cross-on
cross-on
on
cross-on
cross
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
High Tide
7:40PM2.39m
8:13AM2.35m
8:55PM2.19m
9:37AM2.25m
10:33PM2.12m
11:12AM2.31m
00:04AM2.23m
12:30PM2.52m
1:11AM2.43m
1:28PM2.77m
2:02AM2.63m
2:16PM3.00m
2:45AM2.80m
Low Tide
1:49AM0.71m
2:31PM0.77m
3:05AM0.89m
4:07PM0.85m
4:44AM0.93m
5:46PM0.74m
6:11AM0.79m
6:58PM0.51m
7:13AM0.57m
7:52PM0.27m
8:03AM0.35m
8:37PM0.08m
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:09
7:09
7:11
7:11
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:06
8:04
8:01
8:00
7:59
7:58
7:55
 mm
Temp °C
31
26
25
25
24
27
28
21
23
22
19
22
21
18
19
20
18
20
20
17
Feels °C
28
25
24
24
22
24
24
20
22
20
18
20
19
16
14
16
15
18
17
14
  • 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