Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
19.8°C
0.6° 

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


Coxos surf forecast from 5 Sep 2026:

  • Most powerful swell: Thursday 10 Sep, 1AM (local time) - 5.5ft (1.7m), 12s period, NNW swell with 857 kJ wave energy.

Best Forecast Surf Conditions for Coxos this week:

The most powerful waves expected at Coxos in the next 16 days are 1.7m 12s and forecast to arrive on Thursday (Sep 10) at 1AM. 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+)--
Best Surf--
Most Powerful 1AM (Thu 10th Sep)5.5ft (1.7m) 12s

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


The Lowdown

Alright, let me have a look at what’s coming down the line for the next couple of weeks.

It’s a bit of a tough stretch right now, to be honest. The first few days here at Coxos are looking pretty ordinary. The wind is mostly cross-onshore, and the wave heights are small, only around 3 ft to 4 ft, with a short period that doesn’t have much punch. The combined swell energy is low to moderate (125 to 537), meaning the ocean just doesn’t have the juice we want. It won’t be worth paddling out for a proper session.

The real frustration kicks in on Sunday the 6th and into Monday the 7th. The wind picks up to 15-18 mph, making it lumpy and choppy, and the quality drops straight to nothing. This messy, windy pattern pretty much locks in through the whole first week, with a few brief windows of marginal surf on Saturday the 12th, but even then it’s small and weak.

The one glimmer – and I mean a real glimmer – comes in the second week. On Saturday, September 19, the morning session looks like the standout of the entire forecast. The wind turns clean with a light offshore breeze from the SSW, and the swell swings around to the NW with a beautiful long period of 13 seconds. The waves will be small, only 3 ft, but the energy reading is moderate (502), and with that clean wind, expect some glassy, lined-up waves for the experts. The water temp is about average for the time of year, nothing too unusual.

The big caveat is that Coxos is a reef break, and with a long period groundswell, it’ll hold that swell well, but it’s only for the advanced crew. The crowds can be an issue here, so brace for a busy lineup.

The rest of the second week is a mixed bag, with the wind turning fierce again and the swell dropping off. Don’t expect much after that Saturday window.

So, simple version: If you’re hanging for a clean wave, aim for Saturday, September 19, morning. It’s the one true standout. Everything else is a write-off or a gamble.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Fri night, min 18°C on Sun night). Winds increasing (light winds from the NE on Fri night, fresh winds from the N by Mon afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Thu morning, min 17°C on Mon night). Mainly fresh winds.

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
2
2
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
WNW
9
0.9
NW
9
1.2
NW
13
1.3
NNW
12
1.2
NW
11
1.2
WNW
14
1.6
WNW
12
1.5
WNW
12
1.4
WNW
11
1.3
WNW
10
1.1
NW
9
0.9
NW
9
0.7
NW
11
1.1
NW
11
1.7
NNW
12
1.6
NNW
12
1.5
NNW
11
1.3
NNW
11
1.2
NNW
10
1.2
NNW
9
0.9
NNW
7
Wave Graph
Metric surfscale
Energy kJ
101
120
501
464
347
549
742
593
478
302
198
132
133
254
857
669
571
379
258
218
86
Wind (km/h)
10
NNW
10
NW
10
N
15
N
30
NNW
25
N
30
N
30
N
25
N
30
N
30
NNW
15
N
20
NNW
25
NNW
20
N
15
N
25
NNW
20
NNE
10
NNE
15
NNW
15
N
Wind State
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
on
cross-on
High Tide
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
2:59PM3.15m
3:25AM2.92m
3:38PM3.21m
Low Tide
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
8:45AM0.17m
9:16PM-0.04m
9:25AM0.07m
9:53PM-0.07m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:09
7:11
7:11
7:13
7:13
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:01
8:00
7:59
7:58
7:55
7:54
7:52
 mm
Temp °C
27
25
21
23
22
19
21
21
18
20
20
20
21
22
18
23
23
21
31
28
26
Feels °C
26
24
21
21
19
17
18
19
15
16
16
21
20
20
16
21
20
20
28
25
25
  • 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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