Coxos Surf Break

Lat Long: 39.00° N 9.43° W

Coxos Surf Forecast and Surf Report

Issued: 12 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coxos sea temperature is
19.6° 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 16 Aug 2026:

  • Best quality surf: Monday 17 Aug, 10AM (local time) - 5.5ft (1.7m), 8s period, NNW swell with glassy winds.
  • Most powerful swell: Friday 21 Aug, 10AM (local time) - 10ft (3.0m), 9s period, NNW swell with 1,205 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 10AM (local time) - 5.5ft (1.7m), 8s 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 1.7m and 8s period with a secondary swell of 0.2m and 8s. 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 Friday (Aug 21) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s 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)5.5ft (1.7m) 8s
Best Surf10AM (Mon 17th Aug)5.5ft (1.7m) 8s
Most Powerful10AM (Fri 21st Aug)10ft (3.0m) 9s

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


The Lowdown

Alright, this is Rusty. Let’s have a look at what’s on the table for the next couple of weeks at Coxos.

Right off the bat, I gotta be straight with you: there’s no surf worth paddling out for until Sunday the 17th. The first few days are a write-off – either the wind is junk, the conditions are messy, or the swell just isn’t cooperating. So don’t bother waxing up until then.

Come Sunday morning the 17th, things finally line up. We’ve got a clean 6 ft swell from the NNW, an 8-second period, and it’s glassy – dead calm. That’s the kind of morning you set an alarm for. The water’s sitting at 67°, which is a bit colder than normal for this time of year, so a good 4/3 wetsuit is in order if you’re prone to getting chilly. The crowd factor here is “often”, so expect some company, but with conditions that clean it’s still a proper session. The combined energy is moderate at 396, so it won’t be a full-on battle.

Monday the 18th morning is also decent – 5 ft from the NNW, 8 seconds, with a cross-off breeze that’ll keep things tidy. Energy is still moderate at 294. Not a standout like Sunday, but a solid backup.

Now, the real standout in this whole forecast is Friday the 21st of August. We’re looking at a serious pulse of 10 ft swell from the NNW in the morning, with a 9-second period and combined energy of 1231 – that’s strong, powerful stuff. But here’s the catch: the wind is cross-onshore at 22 mph, and it’s lumpy. This is expert territory only. Anything over 8 ft with that wind is a handful, and the break is a reef, so it’s not for the faint-hearted. If you’re a solid surfer and you like a challenge, it’ll be big and raw. If you’re not ready for that, stay on the sand.

Later in the week, Monday the 31st of August has some promise – 6 ft to 5 ft from the NNW, with a longer 11-second period that’ll give those waves a bit more shape and power. The energy is still strong – 783 and 928 – but the wind is cross-onshore, so it’s not perfect. Crowds will still be a factor, and the tide might make things a bit tricky.

Overall, the best bet in this 16-day window is Sunday the 17th morning. Clean, glassy, chest-to-head-high swell from a good direction, and the reef should handle it well. Friday the 21st is for the brave only, and everything else is either blown out, too small, or just marginal. It’s a patchy run, but that Sunday morning is the one to circle.

- Rusty

Short Range Forecast

Mostly dry. Warm (max 26°C on Sun morning, min 20°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Wed morning, min 18°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the NNW by Thu night).

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
2
0
2
2
0
1
0
0
1
0
0
0
0
0
0
0
0
1
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
8
1.7
NNW
8
1.4
NNW
7
1.7
NNW
8
1.5
NNW
8
1.4
NNW
8
1.5
NNW
8
1.5
NNW
8
1.2
NNW
8
1.2
NNW
8
1
NNW
7
0.9
NNW
6
0.7
WNW
9
1.4
NNW
8
2.2
NNW
8
3
NNW
9
2.5
NNW
8
2.3
NNW
8
1.8
NNW
8
1.5
NNW
9
1.3
NNW
9
Wave Graph
Metric surfscale
Energy kJ
524
344
220
392
291
237
284
284
163
155
117
59
67
226
512
1205
864
705
457
377
257
Wind (km/h)
10
NNE
20
NNW
20
N
5
S
20
WNW
0
WNW
15
SSW
20
SW
10
SSW
15
SW
15
W
5
NNW
10
NNW
30
NNW
35
NNW
35
NNW
35
NNW
25
NNW
20
NNW
20
NW
15
SW
Wind State
cross
on
cross-on
glassy
cross-on
glassy
cross-off
cross
cross-off
cross
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross
High Tide
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
9:50AM2.03m
10:42PM1.88m
11:22AM2.03m
00:11AM1.94m
Low Tide
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
4:18PM1.11m
4:48AM1.16m
5:56PM1.07m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:52
6:52
6:54
6:54
6:54
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:31
8:30
8:29
8:28
8:25
8:24
8:22
 mm
Temp °C
26
23
21
26
24
22
25
24
21
22
22
21
21
21
19
20
20
19
21
21
21
Feels °C
26
22
19
26
24
23
25
23
24
22
23
22
22
18
14
15
15
15
19
19
22
  • 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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