Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 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, 1PM (local time) - 2.5ft (0.8m), 9s period, WNW swell with glassy winds.
  • Most powerful swell: Tuesday 1 Sep, 1AM (local time) - 6ft (1.9m), 10s period, NW swell with 710 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 1PM (local time) - 2.5ft (0.8m), 9s period with WNW 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 1PM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 1.9m 10s and forecast to arrive on Tuesday (Sep 01) 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 0.3m 3s period and expected on Saturday (Sep 05) at 10AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sat 5th Sep)2.5ft (0.8m) 9s
Best Surf 1PM (Sat 5th Sep)2.5ft (0.8m) 9s
Most Powerful 1AM (Tue 1st Sep)6ft (1.9m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s take a hard look at what’s coming up for this region. The only spot on the radar is Coxos, a reef break that’s fairly consistent and points straight into the NNW swell window. But I gotta be straight with you—this 16-day run is a tough one.

The water temp at Coxos is sitting at 69°F, which is about average for this time of year, so no surprises there.

The pattern starts with a real struggle. From Monday the 31st of August right through the first week of September, the wind is a problem. We’ve got a fresh to moderate breeze blowing cross-on from the north and north-northwest, and the swell is small to moderate, around 2 to 6 feet, mostly from the NW and NNW. The combined swell energy is weak to moderate (89 to 486), but it doesn’t matter because the conditions are described as lumpy, choppy, and messy. The scores are all zeros. There’s nothing to get excited about here.

We do get a bit of a change on Sunday the 6th of September. The morning shows a light breeze from the NNW, with the swell coming in from the NNW at 3 feet but with a period of 12 seconds—that’s a proper groundswell. The combined energy jumps to 359, which is moderate. The report calls it marginal, but that light wind is a big positive. This is the best-looking window in the whole outlook, but it’s still just a flicker of hope. The afternoon turns choppy again.

After that, it’s back to the same story: cross-on winds, fresh breezes, and poor surf. The swell stays small, mostly under 3 feet, and the energy is low to moderate. There’s a brief moment on the morning of Saturday the 12th of September with a gentle breeze and a light offshore from the NW, but the swell is only 3 feet and the period is 10 seconds. It’s clean, but it’s not going to set the world on fire.

The final stretch from the 13th to the 15th of September is more of the same: marginal at best, with light winds but small swell. The period gets a little longer at times, like 11 seconds on the 15th, but the swell height is only 2 feet. The energy is low (112 to 125). It’s not enough to bother paddling out for.

So here’s the bottom line: there’s a gap of about a week of poor to no surf at the start. The one standout, if you can call it that, is the morning of Sunday the 6th of September. Light wind, a 12-second groundswell from the NNW, and 3-foot waves. It’s not big, but it’ll be cleanest. For a reef break like Coxos, that long period will wrap in nicely. Crowds are often here, so expect company even on a marginal day.

Other than that, it’s a long, flat, windy run. This setup looks more interesting for kite surfing than paddle surfing for most of the period. Forecasts can change, though, so don’t write the whole season off just yet.

Rusty out.

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu morning, min 17°C on Mon night). Winds decreasing (fresh winds from the N on Mon afternoon, light winds from the NNE by Wed night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 36°C on Sat morning, min 20°C on Sat night). Wind will be generally light.

Mon
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
1
0
0
1
1
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)
1.4
NW
10
1.9
NW
10
1.2
NW
9
1.7
NNW
9
1.7
NNW
9
1.4
NNW
7
1.3
NNW
7
1.3
NNW
7
1.2
NNW
7
0.9
NNW
7
0.7
WNW
9
0.7
WNW
8
0.6
WNW
8
0.8
WNW
9
0.8
WNW
9
0.8
WNW
9
0.9
WNW
9
1.1
NW
9
0.9
NNW
11
1
NNW
11
Wave Graph
Metric surfscale
Energy kJ
384
710
235
486
449
173
158
172
128
79
65
58
45
101
103
103
127
187
215
242
Wind (km/h)
30
N
30
N
30
N
30
N
30
N
25
N
25
NNW
20
N
10
N
20
NNW
20
N
20
NNW
30
NNW
5
NNW
20
NE
15
WSW
5
W
10
NNW
25
NNW
25
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
on
cross-on
on
cross
cross
glassy
on
cross-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
11:35PM0.18m
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
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
18
19
20
18
21
21
19
25
25
23
30
31
29
36
27
23
21
21
19
Feels °C
16
14
15
16
15
19
19
19
24
23
22
25
26
24
35
26
24
22
20
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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