Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
18.2°C
2.3° 

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


Coxos surf forecast from 13 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 7AM (local time) - 5.5ft (1.7m), 12s period, NNW swell with offshore winds.
  • Most powerful swell: Saturday 19 Sep, 1AM (local time) - 8ft (2.5m), 15s period, NNW swell with 3,162 kJ wave energy.
  • Next surfable swell (1★+): Sunday 20 Sep, 7AM (local time) - 5.5ft (1.7m), 12s 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 Sunday (Sep 20) at 7AM. The primary swell is predicted to be 1.7m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 2.5m 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 11s period and expected on Monday (Sep 14) at 1AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 20th Sep)5.5ft (1.7m) 12s
Best Surf 7AM (Sun 20th Sep)5.5ft (1.7m) 12s
Most Powerful 1AM (Sat 19th Sep)8ft (2.5m) 15s

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


The Lowdown

Alright, this is Rusty, lookin’ at the Coxos forecast. We’ve got a bit of a story unfoldin’ here over the next couple weeks.

Right now, there’s a bit of a gap before things get interestin’. The first real chance for a wave comes Sunday the 13th. We’re startin’ off with a bit of a mixed bag. Sunday morning’s got clean 3 ft NW swell, but only a moderate energy in the water, and while the cross-off wind’s alright, it’s not the best it could be. Not the standout of the week, but you could get wet.

The real highlight for the first week is gonna be Monday morning, the 14th. That’s the session to circle. Glassy conditions, a clean 3 ft NW swell with a moderate 11-second period, and wave energy is solid. Coxos is a reef break, so that longer period will really help shape things up. The wind’s dead calm, and it’ll be clean as a whistle. With the break bein’ fairly consistent and exposed, this is your best bet early on. The water temp is 65°, which is 4° colder than normal, so you’ll feel that chill, especially on a glassy morning like that.

Things go a bit sideways from Tuesday the 15th through to the end of that week. We get a pulse of bigger swell, but it’s gonna be messy. Wednesday the 16th has 10 ft NW swell, but it’s blown out by a strong 25 mph north wind. That’s not for the faint of heart—it’s big, bumpy, and only for experts if anyone’s crazy enough. The combined energy is massive, but the wind just trashes it. This stretch of poor conditions lasts for several days, right through to the 18th.

We get another promising window around Saturday the 19th. There’s an 8 ft NW groundswell with a very long 14-second period, and the energy is through the roof, but the winds are cross-shore and it’s flagged as marginal. Could be a big, clean wave if the tide lines up, but that’s a bit of an if. It’s also gettin’ into that size where it’s expert territory only.

The next real standout comes Sunday the 20th. Morning session is where it’s at: 6 ft NW swell with a 12-second period, and a light ESE cross-off breeze. That’s clean, solid, and the energy is strong. For a reef like Coxos, that’s gonna produce some real quality lines. This is the one to plan for in that second week.

Monday the 21st morning also looks excellent. Another 6 ft NW swell, this time with a 13-second period and a clean south cross-off wind. Wave energy is near a thousand. That’s a proper session.

After that, the swell fades through the rest of the week, with a few small, glassy mornings on the 23rd (5 ft) and the 25th (2 ft), but the energy drops off. The last real pulse we see is on Monday the 28th, with a 3 ft NW groundswell and a very long 14-second period, glassy conditions—could be a sneaky good clean-up session, but the energy is low.

All in all, the best windows are the mornings of the 14th, 20th, and 21st. The 14th is your glassy, early-week gem. The 20th and 21st are your bigger, clean groundswell days. After that, it’s a slow fade.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Sun morning, min 17°C on Tue night). Winds increasing (light winds from the SW on Mon morning, strong winds from the N by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Thu morning, min 17°C on Wed morning). Winds decreasing (strong winds from the N on Wed afternoon, light winds from the NNE by Fri night).

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
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
0.5
NW
9
2.1
NNW
7
3
NNW
9
3
NNW
9
3.5
NNW
10
3
NNW
10
2.5
NNW
10
3
NNW
9
2.5
NNW
9
2.2
NNW
9
2.5
NNW
15
2.5
NNW
14
2.2
NW
14
1.9
NNW
13
Wave Graph
Metric surfscale
Energy kJ
290
465
486
242
169
102
63
39
495
1494
1528
2345
1690
1301
1480
1074
698
3162
2446
1773
1180
Wind (km/h)
5
S
10
WNW
10
NNE
5
SW
10
NW
15
N
15
NNW
30
NNW
45
N
40
N
40
NNW
35
N
30
N
35
N
30
N
30
N
35
N
20
N
15
NNE
15
NNW
10
N
Wind State
cross-off
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
High Tide
4:51PM3.04m
5:10AM2.86m
5:26PM2.85m
5:44AM2.73m
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
Low Tide
10:38AM0.08m
11:00PM0.11m
11:13AM0.19m
11:32PM0.29m
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
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
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>
7:16
7:16
7:18
7:18
7:20
7:20
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:50
7:47
7:46
7:45
7:43
7:42
7:39
 mm
Temp °C
28
26
25
26
26
21
21
20
18
18
19
18
21
20
18
21
21
19
27
23
22
Feels °C
27
25
23
24
24
21
20
17
14
12
13
12
16
15
13
17
17
17
24
21
20
  • 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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