Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 pm 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
18.7°C
1.9° 

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


Coxos surf forecast from 23 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 7AM (local time) - 5ft (1.5m), 7s period, W swell with glassy winds.
  • Most powerful swell: Friday 28 Aug, 4AM (local time) - 13ft (4.0m), 13s period, NW swell with 5,341 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 7AM (local time) - 5ft (1.5m), 7s period with W 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 25) at 7AM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 0.1m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 4.0m 13s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Monday (Aug 24) at 1AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 25th Aug)5ft (1.5m) 7s
Best Surf 7AM (Tue 25th Aug)5ft (1.5m) 7s
Most Powerful 4AM (Fri 28th Aug)13ft (4.0m) 13s

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


The Lowdown

Alright folks, it’s Rusty here. Let’s have a good hard look at what’s on the table for Coxos over the next couple of weeks. I’ll be straight with you – it’s a bit of a mixed bag, with some serious frustration early on, but there are a couple of windows that’ll make it all worth it if you time it right.

We’re starting off on Sunday the 23rd of August, and I’ll be honest, the first week is a tough one to swallow. The water’s come up a bit chilly at 66°F, about 3°F colder than normal for this time of year, so you’ll want a good wetsuit. Swell energy is moderate at 663, but with a screaming 22 mph southerly cross-off wind, the waves are a messy 6ft from the W. The report calls it poor, and I’m not arguing. Monday the 24th is even worse – solid 8ft of WSW windswell, but with 25 mph cross-shore winds and thunderstorm risk, that’s a hard pass. That trend of onshore junk and lumpy conditions pretty much nails us through Thursday the 27th. We get a tiny glimpse of hope on Tuesday morning the 25th with a light 6 mph cross-off, 5ft from the WNW, and the conditions look clean. That’s your only real chance in this first stretch, and it’s weak swell energy (209), period a short 7 seconds, but it’s rideable.

The real standout, the one you’ve been waiting for, is Friday morning the 28th of August. We get a proper pulse of groundswell: 12ft from the NW with a very long 12-second period and massive energy reading of 2894. The wind is offshore from the NW at a gentle 9 mph. Now, this is a serious, expert-only wave. Don’t even think about it if you’re not in the top tier. That size and power will be unruly, but for those with the skills, the Coxos reef will be putting on a show. The score is marginal, but that’s likely due to the size making it challenging. The light offshore wind will be a major positive for keeping it clean. After that, the wind swings cross-on again for the rest of the week, and while there’s still some energy around, the quality drops off a cliff.

Now, looking deeper into the second week, there’s a glimmer of hope way out on Sunday the 6th of September. The morning brings glassy conditions with the wind going completely calm, 0 mph from the SSW. Swell is a manageable 6ft from the NNW, with decent energy (528). Expect very good surf conditions. It’s a short period (7 seconds) so it’ll be a bit softer and more playful – a nice change from the monster earlier. The very long wait between those Friday sets and this Sunday session is tough, but that glassy window is a true gift. Then Monday the 7th of September morning looks interesting too, with light 6 mph cross-off winds, a solid 6ft from the NNW, and significantly more energy at 1126. But the period is still short (8 secs). After that, the wind turns cross and the swell gets weird with a 19-second period from the W – that’s a very long period that can be tricky on a reef, breaking a bit too straight if it’s not hitting the takeoff zone perfectly.

So the pick of the entire 16 days: Friday morning the 28th of August for the big, powerful, offshore groundswell, but only for experts. Your backup, and the better option if you want something you can actually session without fear, is the glassy Sunday morning of the 6th of September.

Stay safe out there.

- Rusty

Short Range Forecast

Moderate rain (total 12mm), heaviest on Sun night. Warm (max 22°C on Sun afternoon, min 20°C on Sun night). Winds decreasing (strong winds from the SW on Mon morning, calm by Mon night).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Warm (max 21°C on Wed afternoon, min 17°C on Fri night). Winds decreasing (fresh winds from the W on Wed night, light winds from the NNW by Thu night).

Sun
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
0
0
1
2
0
0
0
1
0
0
0
3
3
0
1
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)
1.8
W
10
1.9
WSW
9
2.5
WSW
8
2.4
WSW
8
1.7
W
7
1.4
WNW
7
1.2
WNW
7
0.9
WNW
6
1.1
W
6
1.4
WNW
7
1.5
W
8
2.1
WNW
8
2.3
WNW
8
3
NW
11
3.5
NW
12
2.5
NW
11
1.8
NW
10
1.6
NW
9
1.4
NW
9
1.3
NNW
8
Wave Graph
Metric surfscale
Energy kJ
630
560
1008
745
310
208
139
72
78
208
279
547
705
2498
2894
1376
636
437
287
235
Wind (km/h)
35
S
35
S
40
SW
30
WSW
10
W
10
SSW
15
SW
15
SW
20
W
15
W
20
SW
35
WNW
25
W
15
NW
15
NW
20
NNW
15
N
20
N
25
NNW
20
N
Wind State
cross-off
cross-off
cross
cross-on
cross-on
cross-off
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
1:11AM2.08m
1:28PM2.34m
1:54AM2.25m
2:08PM2.54m
2:30AM2.42m
2:43PM2.72m
3:03AM2.57m
3:15PM2.87m
3:34AM2.69m
3:46PM2.98m
4:05AM2.78m
4:17PM3.03m
Low Tide
7:03PM0.92m
7:12AM0.91m
7:48PM0.74m
7:53AM0.72m
8:24PM0.55m
8:28AM0.54m
8:57PM0.38m
9:01AM0.39m
9:28PM0.24m
9:32AM0.26m
9:59PM0.14m
10:04AM0.19m
10:29PM0.09m
clear
thunderstorm
thunderstorm
rain showers
part cloud
cloud
clear
rain showers
thunderstorm
part cloud
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:58
6:58
7:00
7:01
7:01
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:21
8:19
8:17
8:15
8:15
8:13
 mm
5
3
1
1
2
3
1
Temp °C
22
21
22
22
21
21
22
20
21
21
20
21
21
20
20
20
18
20
20
19
Feels °C
18
17
19
19
21
22
21
20
20
19
19
16
17
19
19
18
17
17
17
17
  • 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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