Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
19.6°C
0.9° 

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


Coxos surf forecast from 29 Aug 2026:

  • Most powerful swell: Tuesday 1 Sep, 4AM (local time) - 6.5ft (2.0m), 9s period, NNW swell with 674 kJ wave energy.

Best Forecast Surf Conditions for Coxos this week:

The most powerful waves expected at Coxos in the next 16 days are 2.0m 9s and forecast to arrive on Tuesday (Sep 01) at 4AM. 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 4AM (Tue 1st Sep)6.5ft (2.0m) 9s

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


The Lowdown

Alright, mates, let's talk about Coxos for the next couple weeks. I'm gonna level with you, it's a tough slog. The water's about 67°, which is a touch cooler than normal for this time of year – just a hint of fall creeping in.

From Saturday, August 29th, all the way through Monday, September 7th, it's a write-off. We've got swell in the water, mostly 4ft to 6ft from the NW and NNW, but the wind is just relentless. It's a constant cross-onshore breeze, 15 to 35 km/h, chopping everything to bits. The combined swell energy is moderate to strong (numbers like 437, 516, 710), but it doesn't matter. Every session is labeled "poor surf conditions." Don't even bother.

We finally get a window on Friday, September 4th. The morning has a light cross-onshore breeze, but the swell is turning on. It's a long-period groundswell from the NW at 14 seconds, pushing 3ft to 4ft. The energy is moderate (488). By the afternoon, the wind goes onshore, and we get a 4ft NW swell with a 12-second period and an energy reading of 636. It's still just "marginal," but it's the best we've seen.

The one to really circle is Sunday, September 13th. The morning has almost no wind – just a light breeze from the north – and a 3ft swell from the NNW with a massive 15-second period. The energy reading is a solid 617 (moderate). For a reef like Coxos, that's perfect. The afternoon looks even better: a 4ft NNW swell at 13 seconds with a strong energy reading of 1121. The wind stays light. This is the winner. The lineup will be clean, the waves will be lined up, and you'll get those long, drawn-out rides. The spot can get crowded, so expect some company, but it'll be worth it. That long-period groundswell is made for this setup.

So, the plan is simple: skip the first ten days. It's a waste of energy. Wait for the 13th. That's your day. Keep an eye on the 11th and 12th too, as things might clean up, but the 13th is the standout.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Sun morning, min 17°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Wed morning, min 17°C on Tue night). Mainly fresh winds.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
NW
9
1.4
NW
8
1.3
NW
8
1.3
NW
8
1.6
NW
9
1.1
NW
9
1.1
NW
9
1.3
NW
10
1.3
NW
10
1.8
NW
9
1.7
NNW
9
1.9
NNW
9
1.7
NNW
8
1.7
NNW
8
1.4
NNW
7
1.3
NNW
7
1.3
NNW
7
1.3
NNW
7
0.9
NW
14
1.3
NW
12
1.3
NW
11
Wave Graph
Metric surfscale
Energy kJ
437
286
211
244
423
203
179
348
299
516
449
524
364
302
208
172
178
149
304
520
375
Wind (km/h)
15
N
20
NNW
15
NNW
20
N
25
NNW
25
N
30
N
35
N
30
N
30
N
35
N
30
N
25
N
25
NNW
20
N
20
N
30
N
20
N
15
NNW
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
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
High Tide
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
8:13AM2.35m
8:55PM2.19m
Low Tide
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
2:31PM0.77m
3:05AM0.89m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
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
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:12
8:09
8:08
8:07
8:06
8:04
 mm
Temp °C
20
20
19
21
21
18
20
20
18
19
19
18
21
21
18
21
21
18
20
20
19
Feels °C
19
18
18
19
18
15
16
16
14
15
14
14
20
19
16
19
18
16
20
19
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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