Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 pm 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
20.8° C
0.3° 

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


Coxos surf forecast from 14 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 10AM (local time) - 7ft (2.1m), 9s period, NNW swell with glassy winds.
  • Most powerful swell: Sunday 16 Aug, 4AM (local time) - 7.5ft (2.3m), 9s period, NNW swell with 821 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 10AM (local time) - 7ft (2.1m), 9s period with NNW 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 16) at 10AM. The primary swell is predicted to be 2.1m and 9s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Coxos in the next 16 days are 2.3m 9s and forecast to arrive on Sunday (Aug 16) 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 0.5m 3s period and expected on Tuesday (Aug 18) at 4PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 16th Aug)7ft (2.1m) 9s
Best Surf10AM (Sun 16th Aug)7ft (2.1m) 9s
Most Powerful 4AM (Sun 16th Aug)7.5ft (2.3m) 9s

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


The Lowdown

Alright, surfers, Rusty here. Let’s get into it. We’ve got a real mixed bag of a forecast for Coxos over the next couple of weeks, so let’s break it down day by day. It’s going to be a story of waiting for the right windows between the wind and the swell.

Overall Pattern

The next week and a half are going to be frustrating. There’s swell on the way, but the wind is going to be working against us for most of it. We've got a series of pulses, but they're mostly arriving with onshore or cross-onshore winds, which is gonna chop things up and make it a mess. It's not until the upcoming weekend that things clean up and we get a real look at this place. Don’t get too excited about the big numbers late in the forecast; the wind is going to be howling.

The Wait

We start off on Friday the 14th and Saturday the 15th with some building swell, but it’s mostly coming in from the NNW with moderate to fresh cross-onshore winds. Surf heights are around 3ft to 8ft, with wave energy building from moderate (188) to strong (721), but the surface is going to be lumpy and choppy. It’s going to be pretty ordinary. Not the time to be heading out unless you're keen for a fight.

The Window

Now, Sunday the 16th is where things start to get interesting. We’ve got a clean-up in the morning. The wind is set to go glassy and light from the E at 3 mph, with surf still a solid 7ft from the NNW (671 energy). This is the standout session of the first week. The break at Coxos (Costa da Caparica) is exposed to this NW/NNW swell, and this is when it’s going to be at its best. The wave comment says "expect very good surf conditions," and I'd have to agree.

Monday the 17th morning will also be good, with clean, glassy conditions and 6ft surf (412 energy). The wind goes light from the SSW, and that should clean up the surface nicely. Tuesday the 18th morning is also worth a look, with a clean cross-off breeze and 5ft waves. The period is a short 8 seconds, but the clean conditions will make it more fun. Remember, it's a reef break, so it can handle the shorter period, but the long-period stuff will be better.

The Fade

The swell starts to fade from Wednesday the 19th onwards, dropping to under 3ft. The energy drops off to weak levels (below 100), and there just won't be enough push to make it worthwhile. The wind plays around, but with such small waves, it’s not going to be a priority.

The Next Pulse & The Big Stuff

There's another pulse of swell due on Friday the 21st, but it arrives with a strong NNW wind at 22 mph, creating fresh cross-onshore and lumpy conditions. That's a pass. The same story continues through the 24th and into the 25th. More swell, more onshore wind, more chop. Saturday the 22nd will be similar, with moderate cross-onshore winds.

The real wildcard is on the 28th and 29th. This is when we see the big groundswell arrive, with a period reaching 14 seconds, and wave heights predicted at 10ft to 12ft. The energy numbers are off the charts - strong to very strong at 2839 and 4324. However, the wind forecast is for a strong cross-onshore from the N, making it a messy, powerful beast. This is not going to be a clean day. This swell is big enough that it's only for experts anyway, and with that wind, it'll be a survival mission. This looks more interesting for the kite surfers than the paddle surfers, to be honest.

So, the story is: grab the clean windows on Sunday morning, Monday morning, and Tuesday morning of next week. Everything else is a trade-off. The long-range stuff on the 28th and 29th is promising in size, but at this point, it's just a few days away, and I'd be more confident in the conditions for Sunday.

The water temp is sitting at 69°, right around where it should be for this time of year, so there’s no drama there.

This is a place that needs the wind to play ball, and for the most part, it's not going to. But when it does, it's worth it.

Rusty, out.

Short Range Forecast

Mostly dry. Warm (max 25°C on Sun morning, min 20°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri night, calm by Sun night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Mon morning, min 20°C on Tue night). Wind will be generally light.

Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
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
3
0
1
2
0
2
2
0
1
1
0
0
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)
0.9
WNW
9
0.9
WNW
9
1.4
NNW
6
2.1
NNW
8
2.3
NNW
8
2.4
NNW
9
2.1
NNW
9
1.8
NNW
8
1.5
NNW
8
1.7
NNW
8
1.6
NNW
8
1.4
NNW
8
1.5
NNW
8
1.4
NNW
8
1.2
NNW
8
0.9
NNW
7
0.8
NNW
7
0.4
WNW
9
0.5
WNW
9
0.5
WNW
9
0.5
WNW
9
Wave Graph
Metric surfscale
Energy kJ
130
127
132
545
704
815
656
422
277
385
344
250
291
244
163
97
64
32
43
45
45
Wind (km/h)
30
N
30
NNW
35
NNW
30
NNW
25
NNW
20
N
5
N
15
NW
15
NNE
5
S
20
W
0
SSE
15
SSW
25
SW
5
SSW
10
SSW
15
WSW
5
NE
10
NW
15
WNW
20
N
Wind State
cross-on
cross-on
cross-on
cross-on
on
cross-on
glassy
on
cross-on
glassy
cross-on
glassy
cross-off
cross
glassy
cross-off
cross
glassy
on
cross-on
cross-on
High Tide
4:42PM3.25m
5:07AM2.90m
5:22PM3.14m
5:45AM2.80m
6:01PM2.95m
6:23AM2.67m
6:40PM2.71m
7:02AM2.50m
7:21PM2.44m
7:44AM2.32m
8:08PM2.18m
8:37AM2.15m
9:12PM1.98m
Low Tide
10:26AM0.04m
10:58PM-0.07m
11:05AM0.09m
11:36PM0.05m
11:44AM0.20m
00:12AM0.24m
12:23PM0.38m
00:49AM0.46m
1:04PM0.59m
1:27AM0.69m
1:50PM0.80m
2:12AM0.91m
2:50PM1.00m
3:15AM1.09m
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:50
6:50
6:52
6:52
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:34
8:32
8:31
8:30
8:29
8:28
8:25
 mm
1
Temp °C
22
22
21
22
22
20
25
24
22
29
25
25
25
24
21
23
23
21
23
22
21
Feels °C
21
20
18
20
21
18
27
24
21
28
25
28
24
23
22
23
23
24
24
22
22
  • 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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