Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
19.3° C
1.3° 

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


Coxos surf forecast from 18 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 7AM (local time) - 5ft (1.5m), 8s period, NNW swell with glassy winds.
  • Most powerful swell: Sunday 23 Aug, 10AM (local time) - 8ft (2.5m), 8s period, NNW swell with 954 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 7AM (local time) - 5ft (1.5m), 8s 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 Tuesday (Aug 18) at 7AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 0.2m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 2.5m 8s and forecast to arrive on Sunday (Aug 23) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Aug 18) at 1PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 18th Aug)5ft (1.5m) 8s
Best Surf 7AM (Tue 18th Aug)5ft (1.5m) 8s
Most Powerful10AM (Sun 23rd Aug)8ft (2.5m) 8s

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


The Lowdown

Alright, this is Rusty. Let’s look at what’s in store for Coxos.

It’s a rough stretch overall. Plenty of swell from the NNW, which is the right direction for this reef, but the wind is gonna be the enemy for most of it. The first couple of days are the only real hope, and even those are touch-and-go. After that, it’s a long haul of onshore and cross-onshore winds that will trash the waves.

We start Monday the 17th with a small, weak 1.5m swell from the NNW at 8 seconds. Water temp is 19°, a bit colder than normal. Wind is onshore, so it’s a no-go. Not worth paddling out.

Your only real window is Tuesday the 18th. Early morning, the wind shifts to SSW, giving a nice cross-offshore breeze. That same 1.5m NNW swell is still there, with moderate wave energy (283), and conditions should be clean. That’s your best shot in the whole 16 days. Not huge, but rideable and tidy.

After that, it all falls apart. Tuesday afternoon the wind goes cross-shore and picks up, and from Wednesday the 19th onward, it’s a constant string of poor surf. Swell hangs around through the rest of August and into September, with some pulses over 6ft, but the wind stays stuck from the NNW and N at 15-28 mph, making a mess. The combination of strong wind and lumpy, choppy conditions means this will be more interesting for kite surfing than paddle surfing.

There’s a bigger pulse around the 27th of August (Thursday) with 2.2m from the NNW at 8 seconds, and again on the 31st with 2.2m and a 9-second period. Wave energy gets strong, over 900, but the cross-on wind and poor conditions ruin it. That 2.5m swell on the 1st of September (Tuesday) is too big for beginners and still has the wind wrong.

Honestly, for the full 16-day run, Tuesday the 18th is the only standout, and it’s nothing special. The rest is a washout. That’s a long dry spell, but with this wind pattern, it’s just how it goes around here.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Tue morning, min 20°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Fri morning, min 18°C on Fri night). Mainly strong winds.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
0
1
1
0
1
1
0
0
0
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)
1.5
NNW
8
1.4
NNW
8
1.1
NNW
8
0.9
NNW
7
0.9
NNW
7
0.5
WNW
9
0.6
WNW
9
0.6
WNW
9
1.9
NW
8
1.7
NNW
7
1.9
NNW
10
1.9
NNW
10
2
NNW
10
1.8
NNW
9
2.4
NNW
8
2.5
NNW
8
2.2
NNW
8
2.1
NNW
8
2
NNW
8
1.7
NNW
8
1.5
NNW
7
Wave Graph
Metric surfscale
Energy kJ
270
231
138
94
70
50
62
61
392
263
706
692
772
539
744
954
634
481
463
302
229
Wind (km/h)
15
SSW
20
SW
5
SSW
5
SSW
15
WSW
5
ENE
5
SW
15
W
30
N
30
NNW
35
NNW
30
NNW
30
NNW
35
NNW
40
NNW
40
NNW
35
NNW
35
NNW
30
N
25
NNW
25
N
Wind State
cross-off
cross
glassy
glassy
cross
glassy
glassy
cross-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
High Tide
7:02AM2.50m
7:21PM2.44m
7:44AM2.32m
8:08PM2.18m
8:37AM2.15m
9:12PM1.98m
9:50AM2.03m
10:42PM1.88m
11:22AM2.03m
00:11AM1.94m
12:36PM2.16m
1:11AM2.08m
1:28PM2.34m
1:54AM2.25m
Low Tide
1:04PM0.59m
1:27AM0.69m
1:50PM0.80m
2:12AM0.91m
2:50PM1.00m
3:15AM1.09m
4:18PM1.11m
4:48AM1.16m
5:56PM1.07m
6:14AM1.07m
7:03PM0.92m
7:12AM0.91m
7:48PM0.74m
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>
6:52
6:54
6:54
6:54
6:56
6:56
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:29
8:28
8:25
8:24
8:22
8:22
8:21
 mm
Temp °C
24
23
21
23
23
21
22
22
19
20
20
19
20
20
19
20
20
19
21
21
18
Feels °C
23
22
23
23
23
24
22
22
15
16
15
15
16
14
13
15
14
14
18
19
15
  • Map Icons:
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  • 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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