Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 am 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, 10PM (local time) - 6ft (1.9m), 9s period, NNW swell with 536 kJ wave energy.

Best Forecast Surf Conditions for Coxos this week:

The most powerful waves expected at Coxos in the next 16 days are 1.9m 9s and forecast to arrive on Tuesday (Sep 01) at 10PM. 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 Powerful10PM (Tue 1st Sep)6ft (1.9m) 9s

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


The Lowdown

G'day, Rusty here, and I've got to be straight with you—this 16-day stretch for Coxos is a tough one. We're looking at a pretty grim run of poor surf conditions, with a solid gap of nothing worthwhile from the start all the way through to Friday, September 5th. After that, there's a flicker of hope, but it's a long wait for anything that gets the heart pumping.

Let's start with the here and now. Right from Saturday, August 29th, it's a write-off. The water's sitting at about 67°F, which is about normal for this time of year, but that's the only thing that's average. Swell is hanging around 4ft to 6ft from the NW, but the wind is a relentless cross-onshore from the north, blowing at 9 to 22 mph. The wave energy is moderate, with values like 437 and 535, but it's all wasted on choppy, lumpy conditions. Every session through the end of August and into the first week of September is rated as poor surf. It's a real bummer—no clean lines, just messy, wind-affected junk.

We hit a rough patch from August 29th until September 5th, with no surf recommendations at all. That's a solid week of nothing to write home about. The first real sniff of potential shows up on Saturday, September 6th, and it's a bit of a tease. Sunday morning, September 6th, is the standout. The swell drops to 4ft from the NNW, but the wind swings to a light cross-offshore from the ENE at 6 mph, and the wave comment says "expect good surf conditions." The wave energy is a moderate 368, and the swell period is a decent 11 seconds, which should give you some shape. But here's the catch: Coxos is a reef break that's exposed to NNW swell, and the optimum swell direction is from the NNW, so this aligns perfectly. The water temp is still around normal, but it's a clean window. The only issue is that Coxos is often crowded, and with conditions this clean, you can bet the lineup will be busy. For a brief moment, it looks like a dream.

But don't get too excited. By Sunday afternoon, the wind shifts back to a moderate cross-shore from the NNE, and the quality vanishes. The rest of the forecast, from September 7th through to September 13th, is a repeat of the same: cross-onshore winds, poor surf, and moderate to fresh breezes kicking up chop. There's a brief moment on September 13th with a long-period 14-second swell from the WNW, but the wind is still cross-onshore, and the wave energy is weak at 243, so it's not worth paddling out for. The wave comment calls it "poor surf conditions" across the board.

So, if you're itching for a wave, mark your calendar for Sunday morning, September 6th. That's your best bet: clean, offshore winds, a solid 4ft groundswell from the NNW, and a reef setup that'll handle the swell. Just be prepared to share the peak.

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 Thu 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
0
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)
1.6
NW
9
1.4
NW
8
1.3
NW
8
1.3
NW
8
1.3
NW
9
1.1
NW
9
1.1
NW
9
1.4
NW
10
1.3
NW
10
1.1
NW
9
1.8
NNW
9
1.9
NNW
7
1.7
NNW
7
1.6
NNW
7
1.1
N
7
1.5
NNW
7
1.3
NNW
7
1.1
NNW
7
0.9
NNW
7
0.9
NW
10
0.9
NW
9
Wave Graph
Metric surfscale
Energy kJ
437
262
211
219
314
203
183
384
341
208
535
330
314
273
113
249
183
102
89
137
118
Wind (km/h)
15
N
20
NNW
20
NNW
20
N
30
NNW
25
N
30
N
30
N
30
N
30
N
35
N
30
N
30
N
30
N
20
N
15
N
20
NNW
20
N
15
N
25
N
15
NNE
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
cross-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
clear
clear
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
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
20
21
21
18
20
20
17
20
19
18
20
20
18
21
21
18
23
23
20
Feels °C
19
18
19
19
18
16
17
16
13
16
14
14
17
16
15
20
20
17
21
20
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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