Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
19.7°C
0.7° 

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


Coxos surf forecast from 28 Aug 2026:

  • Most powerful swell: Saturday 29 Aug, 1AM (local time) - 7ft (2.1m), 10s period, NW swell with 809 kJ wave energy.

Best Forecast Surf Conditions for Coxos this week:

The most powerful waves expected at Coxos in the next 16 days are 2.1m 10s and forecast to arrive on Saturday (Aug 29) 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 0.2m 15s period and expected on Tuesday (Sep 01) at 10AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Sat 29th Aug)7ft (2.1m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s cut through the noise and talk about what’s actually happening with the surf. We’re looking at a pretty tough stretch for Coxos over the next 16 days. The water temp is sitting at 68°F, which is 1°F cooler than average for this time of year, so pretty much what you’d expect.

The first decent opportunity doesn’t show up until Friday afternoon, August 28th. We’ve got a 7ft swell rolling in from the WNW with a period of 11 seconds, giving a solid 1134 combined energy. That’s moderate wave energy, but the wind is blowing onshore from the NW at 12 mph. The forecast is calling it marginal, and honestly, that onshore breeze is going to mess with the shape. It’s not a standout, but it’s the first wave we’ve got.

After that, the conditions just go flat. From Saturday, August 29th, right through to Saturday, September 5th, it’s a real dead zone. We’re talking consistent cross-onshore winds, lumpy and choppy conditions, and scores that are basically zero. There’s a brief glimmer on Sunday morning, September 6th, when a 4ft swell from the NNW with a very long 11-second period shows up. The combined energy jumps to 559, but it’s still a marginal call with light cross-onshore winds. It’s something to keep an eye on, but nothing to get excited about.

The one true standout in this whole outlook is the window around Thursday, September 10th. On Thursday morning, we’re looking at a 8ft swell from the NNW with an 8-second period. The combined energy is a massive 1819, which is strong wave energy. The wind is a light breeze from the north at 6 mph, but it’s cross-on, so it’s not perfect. The real gem is Thursday afternoon: a 7ft swell from the NNW, but the period stretches out to a very long 12 seconds. That’s groundswell territory, and the combined energy is still pumping at 1423. The wind is light and onshore from the NW, which could clean it up a bit. This is a solid swell at a reef break, and with that long period, it should hold up well. Keep in mind, with the swell over 5ft, it’s getting a bit too big for beginners, and the crowds at Coxos are often there, so expect some company.

The following days drop off again. By Saturday, September 12th, we’re back to small, weak swell with onshore winds.

So, the bottom line: the first week is a washout. The best bet is Thursday, September 10th, with that solid, long-period groundswell. It’s a promising day, but it’s a week and a half out, so don’t book the time off just yet. Conditions can turn.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Sun morning, min 17°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Thu morning, min 17°C on Tue night). Mainly fresh winds.

Fri
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
0
0
0
0
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)
2.2
WNW
11
2.1
NW
10
1.6
NW
9
1.4
NW
8
1.3
NW
8
1.3
NW
8
1.4
NW
10
1.3
NW
9
1.1
NW
9
1.3
NW
10
1.3
NW
10
1.1
NW
9
1.8
NNW
9
1.9
NNW
7
2
NNW
8
1.8
NNW
8
1.8
NNW
8
1.6
NNW
8
1.4
NNW
7
1.1
NNW
7
Wave Graph
Metric surfscale
Energy kJ
1134
809
437
286
211
244
361
257
179
348
299
208
547
355
463
383
373
288
220
105
Wind (km/h)
20
NW
15
N
20
N
20
NNW
15
NNW
20
N
25
NNW
25
N
25
N
30
N
30
N
30
N
35
N
35
N
30
N
30
N
25
N
15
N
20
NNW
15
N
Wind State
on
cross-on
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
cross-on
cross-on
cross-on
on
cross-on
High Tide
4:05AM2.78m
4:17PM3.03m
4:37AM2.82m
4:50PM3.02m
5:10AM2.82m
5:24PM2.94m
5:46AM2.76m
6:02PM2.80m
6:25AM2.66m
6:46PM2.61m
7:12AM2.51m
7:40PM2.39m
Low Tide
9:59PM0.14m
10:04AM0.19m
10:29PM0.09m
10:37AM0.16m
11:01PM0.10m
11:11AM0.19m
11:35PM0.18m
11:48AM0.28m
00:12AM0.31m
12:31PM0.42m
00:55AM0.50m
1:22PM0.60m
1:49AM0.71m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:03
7:03
7:05
7:05
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:13
8:12
8:09
8:08
8:07
8:06
 mm
Temp °C
20
19
20
20
20
21
21
18
20
20
18
19
20
18
21
21
18
25
24
20
Feels °C
18
18
19
18
21
19
18
15
17
17
14
15
15
13
18
17
15
24
22
19
  • 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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