Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 am 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
21.4° C
1.0° 

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


Coxos surf forecast from 13 Aug 2026:

  • Best quality surf: Monday 17 Aug, 10AM (local time) - 7ft (2.2m), 9s period, NNW swell with glassy winds.
  • Most powerful swell: Sunday 16 Aug, 4AM (local time) - 10ft (3.0m), 9s period, NNW swell with 1,238 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 10AM (local time) - 7ft (2.2m), 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 Monday (Aug 17) at 10AM. The primary swell is predicted to be 2.2m 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 3.0m 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 0.2m 16s period and expected on Tuesday (Aug 18) at 4PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Mon 17th Aug)7ft (2.2m) 9s
Best Surf10AM (Mon 17th Aug)7ft (2.2m) 9s
Most Powerful 4AM (Sun 16th Aug)10ft (3.0m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s take a long look at what’s coming up for Coxos. It’s a reef break, and it’s a bit of a mixed bag over the next couple of weeks, with some real quality on the horizon if you’re patient.

Right off the bat, the first week is a bit of a write-off, to be honest. Thursday the 13th and Friday the 14th are a no-go. We’ve got moderate to fresh cross-onshore winds making a mess of things, with swell around 3ft to 5ft. The energy is moderate, but the wind’s just killing it.

Saturday the 15th gets a bit bigger, with the swell jumping to 8ft from the NNW, and the energy ramps up big time to strong. But that fresh to strong cross-onshore wind is just too much – it’s messy and lumpy. Honestly, with this setup, it looks more interesting for kite surfing than paddling into a wave.

We finally get a window on Sunday the 16th morning. The swell is still a solid 8ft from the NNW, with strong energy, and the wind eases way off. The wind is light and cross-onshore, so there’s a chance it cleans up, but it’s described as marginal. It’s a big one, so that’s for experienced surfers only.

Now, here’s the standout. Monday the 17th morning. That’s your call. The swell is a powerful 7ft from the NNW, energy is strong, but the magic is the wind. It’s glassy. Dead flat, no ripple. This is the kind of reef-cleaning glass you chase. It’s going to be a beautiful morning, and for a break like Coxos, that’s special. Crowds can be an issue here sometimes, so you’ll want to be early.

Tuesday the 18th morning is another good look. The swell drops to a more manageable 5ft from the NNW, but we get light offshore SSE winds. That’s clean, groomed surf. The energy is moderate, but with offshore wind on a reef, the shape will be well above average for the size.

After that, things get a bit messy again through the middle of the week, with onshores building. Then, on Thursday the 20th morning, we get a shift. The swell picks up to 7ft from the NW, and the period stretches out to 11 seconds, making it a proper groundswell. That’s strong energy. The light cross-shore wind is manageable, but it’s a bit of a gamble with the tide. A long-period NW swell like that will wrap in nicely, but it’s worth checking before you paddle out.

The second week is a bit more patchy. Friday the 21st and Saturday the 22nd are back to fresh, lumpy onshores with 7ft swell. Not great. It drops off into the following week, with weaker, wind-affected swell in the 3ft to 5ft range. There’s a blink of hope on Tuesday the 25th and Wednesday the 26th mornings, with cleaner conditions and a solid 5ft to 6ft NW groundswell, but the wind direction isn’t ideal each time. Good enough for a paddle, but not a stand-out.

Rusty out.

Short Range Forecast

Mostly dry. Warm (max 23°C on Thu afternoon, min 19°C on Wed night). Winds increasing (light winds from the N on Wed night, strong winds from the NNW by Sat afternoon).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue morning, min 20°C on Sat night). Winds decreasing (strong winds from the NNW on Sat night, calm by Mon morning).

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
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
3
0
1
3
1
1
2
0
1
1
0
2
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
10
1.1
WNW
10
1
WNW
10
1.4
NNW
6
1.5
NNW
6
2.1
NNW
7
2.5
NNW
8
2.5
NNW
8
2.5
NNW
9
2.5
NNW
9
2.2
NNW
8
2.4
NNW
8
2.2
NNW
9
1.9
NNW
8
1.5
NNW
8
1.6
NNW
8
1.4
NNW
8
1.2
NNW
8
1.2
NNW
8
1.1
NNW
7
0.9
NW
13
Wave Graph
Metric surfscale
Energy kJ
154
237
175
135
176
431
1032
964
1082
934
665
827
689
488
298
344
251
155
151
125
286
Wind (km/h)
20
N
25
NNW
25
N
30
N
35
NNW
35
NNW
35
NNW
40
NNW
35
NNW
10
NNE
25
NNW
15
NNW
5
NE
15
WNW
10
NNE
10
SSE
25
SW
5
SSW
10
SSW
20
SW
5
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
glassy
cross-on
cross-on
off
cross
cross-off
cross-off
cross
cross-on
High Tide
4:01PM3.26m
4:27AM2.93m
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
Low Tide
9:45AM0.08m
10:18PM-0.10m
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
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:50
6:50
6:52
6:52
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:36
8:34
8:32
8:31
8:30
8:29
8:28
 mm
2
2
Temp °C
22
23
20
22
22
21
21
21
20
24
24
21
25
24
23
27
26
23
23
23
21
Feels °C
21
22
18
20
19
18
18
17
15
24
23
21
26
25
23
26
25
25
23
23
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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