Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 6 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
19.8° C
0.8° 

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


Coxos surf forecast from 21 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 4AM (local time) - 7.5ft (2.3m), 12s period, WNW swell with offshore winds.
  • Most powerful swell: Sunday 23 Aug, 4AM (local time) - 7.5ft (2.3m), 12s period, WNW swell with 1,444 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 7.5ft (2.3m), 12s 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 Sunday (Aug 23) at 4AM. The primary swell is predicted to be 2.3m and 12s period with a secondary swell of 0.7m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 2.3m 12s and forecast to arrive on Sunday (Aug 23) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Monday (Aug 24) at 4AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 23rd Aug)7.5ft (2.3m) 12s
Best Surf 4AM (Sun 23rd Aug)7.5ft (2.3m) 12s
Most Powerful 4AM (Sun 23rd Aug)7.5ft (2.3m) 12s

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


The Lowdown

Alright, folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks.

Right off the bat, I gotta be straight with you: the run-up to the weekend is looking pretty grim. We’ve got a decent sized swell arriving on Friday morning, with waves around 4 ft from the NNW, but that 19 mph northerly wind is just gonna chop it all to pieces. The water is sitting at 68° which is bang on average for the time of year, but the conditions are gonna be lumpy and cross-onshore, so it’s a write-off. The energy is moderate (537), but it’s just not clean enough to get excited about.

Friday afternoon does get a bit bigger, with the swell pushing to 7 ft, but the wind swings NNW and builds to 19 mph, making it an even messier cross-onshore. Still poor.

Saturday morning is a little better. The swell drops to 5 ft, and the wind swings to a light WNW breeze at 6 mph. The overall energy drops to a moderate 432, with a feeling of light cross-onshore texture. The call is marginal, but it’s a step up from the slop. We’ll have small ripples, not clean perfection.

The real hope is on Sunday morning, August 23rd. The swell direction shifts to the west, coming in at 7 ft with a period of 11 seconds, and the energy jumps to a strong 1060. The wind goes cross-offshore from the SSE, and the report says "clean." This is the standout window. The SSW breeze on Monday morning will be strong (25 mph) and cross-off, holding up 8 ft waves, but it’s a risk of thunderstorms, and the period is short at 8 seconds, so it’ll be a bit walled-up and messy.

The best bet for the whole outlook is Tuesday morning, August 25th. The swell holds at 5 ft from the west, but the wind drops to a light SSW breeze at 6 mph, and the conditions are described as "clean" with "good surf conditions." The energy is low (221) but the quality will be there. It’s a light wind day, and that’s a rare treat for Coxos. The crowd situation is "often" busy, so expect company.

The rest of the week runs into persistent cross-onshore winds from the north and northwest, with swell sizes varying from 4 ft to 6 ft, but the texture is always choppy or lumpy. The energy dips into the low to moderate range (123 to 458). There’s no clean surf on offer.

The second week (from August 31st into early September) looks even poorer. The swell drops consistently below 5 ft, the winds stay onshore or cross-onshore, and the energy is weak (107 to 648). The period is short, and the conditions are described as poor or marginal. There’s nothing to recommend here. The standout is Tuesday morning, August 25th, for that clean, light-wind window.

Rusty out.

Short Range Forecast

Heavy rain (total 39mm), heaviest during Sun morning. Warm (max 22°C on Sun afternoon, min 18°C on Fri night). Winds increasing (light winds from the NNW on Fri night, strong winds from the SSW by Mon morning).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Wed morning. Warm (max 22°C on Mon afternoon, min 19°C on Wed night). Wind will be generally light.

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
2
0
3
1
1
1
0
0
1
0
0
0
0
0
0
2
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
NNW
10
1.7
NNW
10
1.4
NNW
10
1.2
NNW
9
2
WNW
13
1.9
WNW
11
1.7
W
10
2.3
WSW
9
2.3
WSW
8
2.4
WSW
8
1.7
W
7
1.3
W
7
1.1
W
7
0.9
WNW
6
0.8
W
6
1.1
WNW
6
1.4
WNW
8
1.8
NW
9
1.7
NW
9
1.7
NW
8
Wave Graph
Metric surfscale
Energy kJ
794
537
394
248
1380
798
584
826
700
762
315
154
110
70
41
101
243
516
430
400
Wind (km/h)
30
NNW
20
NNW
10
W
25
SW
15
S
35
SSE
35
SSE
35
S
40
SSW
25
SW
15
WSW
5
WSW
15
WSW
15
WSW
20
SW
20
WNW
15
NW
10
NW
20
NW
15
N
Wind State
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross
cross
cross
cross
cross-on
on
on
on
cross-on
High Tide
10:42PM1.88m
11:22AM2.03m
00:11AM1.94m
12:36PM2.16m
1:11AM2.08m
1:28PM2.34m
1:54AM2.25m
2:08PM2.54m
2:30AM2.42m
2:43PM2.72m
3:03AM2.57m
3:15PM2.87m
3:34AM2.69m
Low Tide
4:18PM1.11m
4:48AM1.16m
5:56PM1.07m
6:14AM1.07m
7:03PM0.92m
7:12AM0.91m
7:48PM0.74m
7:53AM0.72m
8:24PM0.55m
8:28AM0.54m
8:57PM0.38m
9:01AM0.39m
9:28PM0.24m
clear
clear
clear
clear
part cloud
heavy rain
thunderstorm
thunderstorm
rain showers
rain showers
part cloud
cloud
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:58
6:58
7:00
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:22
8:22
8:21
8:19
8:17
8:15
 mm
30
1
6
2
1
3
Temp °C
19
18
20
21
20
20
22
21
22
22
21
21
21
20
21
21
20
20
20
19
Feels °C
14
16
19
18
19
16
18
18
18
20
21
23
21
21
20
19
19
19
17
17
  • 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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