Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
20.3°C
0.1° 

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


Coxos surf forecast from 31 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 10PM (local time) - 3.5ft (1.1m), 13s period, NW swell with glassy winds.
  • Most powerful swell: Tuesday 1 Sep, 4AM (local time) - 6ft (1.8m), 10s period, NW swell with 587 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 4PM (local time) - 2.5ft (0.7m), 15s period with NW 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 Saturday (Sep 05) at 4PM. The primary swell is predicted to be 0.7m and 15s period with a secondary swell of 0.8m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 1.8m 10s 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+) 4PM (Sat 5th Sep)2.5ft (0.7m) 15s
Best Surf10PM (Sat 5th Sep)3.5ft (1.1m) 13s
Most Powerful 4AM (Tue 1st Sep)6ft (1.8m) 10s

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


The Lowdown

Alright folks, Rusty here. I've had a good look at the charts for Coxos, and I'll level with you straight up - it's a tough run ahead. Don't get your hopes up for any epic sessions just yet.

Over the next 16 days, the story is mostly one of messy, onshore conditions. The wind is a persistent pain, blowing cross-onshore from the north for the bulk of the forecast. This means a lot of lumpy, choppy, and generally poor surf. The first real stretch of anything remotely interesting doesn't show up until we hit the 5th of September.

Let's break it down. From the 31st of August right through to Saturday the 4th of September, it's a write-off. The wind is too strong and from the wrong angle, turning even the moderate swells into a washing machine. You wouldn't want to be out there.

A glimmer of hope arrives on Saturday the 5th of September. The morning is still average, but by Saturday afternoon, things shift. The wind drops right off, swinging to a light cross-offshore breeze (just 3 mph). The swell drops to a tiny 2 ft from the NW, but the period kicks right up to 15 seconds - that's proper groundswell energy. The combined energy is moderate (336). While it's small, it'll be clean. This is the first real window, but it's very small.

The standout, and I mean the one to circle on your calendar, is the morning of Sunday the 6th of September. We've got a clean 4 ft NW groundswell coming through with a solid 12-second period. The wind? Dead glassy. Zero. Nothing. The combined energy is moderate (470). For Coxos, a reef break that's fairly consistent, this offshore/glassy condition is a rare gem. The swell direction is NNW, which is right in the optimum window for this spot. This is the best on offer. Get out there early Sunday because the wind shifts onshore by the afternoon.

After that, it's back to the grind. From Monday the 7th of September through Monday the 14th, the wind returns to that brutal cross-onshore pattern. There's plenty of swell in the mix, hitting 6 ft on the 8th and 12th with strong wave energy (926 and 596), but it's all blown out. That 6 ft stuff is big enough that it's only for experienced surfers, but with the chop, it's not even worth considering for paddle surfing - looks more interesting for a kite session.

The far end of the forecast, on Tuesday the 15th of September, shows another promising swell pulse. A 3 ft swell from the NW with a 14-second period and strong energy (532) is on the cards, but the wind is cross-onshore again, making it a questionable session.

So, to wrap it up: don't bother with the first five days. The only true standout is Sunday the 6th of September morning for small, glassy, clean waves at Coxos. The Saturday before that is a tiny sneak peek. Everything else is a blown-out mess.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 36°C on Sat afternoon, min 21°C on Thu morning). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
2
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
NW
9
1.4
NW
10
1.4
NW
10
1.2
NW
9
1.8
NNW
9
1.8
NNW
9
1.3
NNW
6
1.4
NNW
7
1.3
NNW
7
1.2
NNW
7
1
NNW
7
0.7
WNW
9
0.6
WNW
8
0.8
WNW
10
0.8
WNW
9
0.8
WNW
9
0.7
NW
15
1.2
NW
13
1.2
NW
12
1.1
NW
11
0.9
NNW
11
Wave Graph
Metric surfscale
Energy kJ
183
384
377
235
535
497
139
163
172
128
96
65
45
120
103
106
217
486
407
283
200
Wind (km/h)
30
N
30
N
30
N
30
N
30
N
30
N
25
N
30
NNW
20
N
15
N
20
NNW
20
N
25
NE
25
NNE
15
NNE
25
NNE
5
ENE
5
E
5
W
15
NW
20
N
Wind State
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
cross-on
cross-on
cross
cross-off
glassy
glassy
on
cross-on
High Tide
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
9:37AM2.25m
10:33PM2.12m
11:12AM2.31m
00:04AM2.23m
Low Tide
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
4:07PM0.85m
4:44AM0.93m
5:46PM0.74m
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:05
7:05
7:07
7:07
7:09
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:08
8:07
8:06
8:04
8:01
8:00
 mm
Temp °C
20
20
18
20
20
18
21
21
18
26
26
22
26
34
26
34
36
26
27
24
20
Feels °C
16
16
14
16
16
14
19
18
16
24
23
21
22
29
23
28
35
26
27
23
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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