
Surf Forecasts:
Coxos surf forecast from 2 Sep 2026:
- Best quality surf: Friday 4 Sep, 10AM (local time) - 2.5ft (0.7m), 8s period, WNW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 4AM (local time) - 8ft (2.5m), 8s period, NNW swell with 979 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 10AM (local time) - 2.5ft (0.7m), 8s 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 Friday (Sep 04) at 10AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.5m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Coxos in the next 16 days are 2.5m 8s and forecast to arrive on Wednesday (Sep 09) 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 14s period and expected on Thursday (Sep 03) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 10AM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 4AM (Wed 9th Sep) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, let's get into it. The next week and a bit is looking pretty average for us here at Coxos, to be honest. We’ve got a lot of onshore wind and lumpy conditions to wade through before we see anything worth getting excited about. It’s not a total write-off, but you’re going to need to be patient.
We’re starting off with a real flat spell. From Wednesday afternoon right through to Thursday, we’re looking at weak, short-period swell and cross-onshore breezes. The water temp is sitting at 69°F, which is pretty much bang on average for this time of year. The energy in the water is weak (105 to 141), and it’s just not doing us any favors. You’ll see a couple of small waves but it’s poor, choppy stuff.
Friday the 4th, things glass off. Westerly winds go light and there’s a chance of a clean surface, but the swell drops away to 2ft with a short 8-second period. The energy is still weak (90-92). It’s surfable, but it’s pretty ordinary – you’d be scratching for a knee-high ripple.
The weekend brings a little more size but not much else. Saturday the 5th keeps that small, cleanish vibe in the morning, but by the afternoon a 15-second period swell shows up, and the energy jumps to 330. But the wind switches onshore from the WNW, so it gets messy and the waves are only 2ft. Marginal. Sunday the 6th has more size – 4ft with a 12-second period – and the energy is moderate to strong (606), but it’s crossed up and choppy. The NNW wind at 15 mph ruins it. This is still poor.
From Monday the 7th through to Wednesday the 9th, we see a pulse of swell, up to 8ft. The energy is strong to very strong (870 on Wednesday morning), but it’s all accompanied by fresh, cross-onshore northerly winds blowing 19 to 22 mph. This is going to be lumpy, bumpy, and a total mess. These are not surfable conditions for a reef break like this; it’ll be blown out and ugly. The swell direction is from the NNW, but the wind is just killing it. At this size, with this wind, this is more of a kite-surfing setup than a paddle-surfing one.
After that, it drops back down but the wind doesn’t let up. Thursday and Friday are still onshore with moderate to fresh breezes. We get some 6ft and then down to 4ft, but it’s all cross-onshore and choppy. Poor.
Now, here’s where things start to look a little more interesting. The following Sunday, the 13th, the wind goes light easterly, which gives us a clean surface. The swell is only 2ft from the WNW, but it’s clean and the energy is weak to moderate (118). It’s surfable, but still pretty ordinary.
But then, look at Monday the 14th. This is the one to watch. The swell kicks up to 6ft with a solid 14-second period from the NW, and the energy is massive – 1588, which is strong to very strong. The wind is light from the north, so it’s only a light cross-onshore. The conditions are still listed as marginal, but this is our best chance for a proper surf. The period is long, so it’ll have some power behind it, but this spot being a reef, it should handle it well. The onshore wind might put a bit of a ripple on it, but it’s the most promising window we have. Tuesday the 15th still has decent size and period (6ft, 13s) but the wind gets up again, so it’s less appealing.
After that, it’s all downhill again with strong winds and dropping swell. We’re looking at a long stretch of nothing from the 16th onward.
So what’s the call? If you can, get out on Monday the 14th morning. It’s the only real standout in the whole window, with size and long-period energy. It’s not perfect, but it’s the best we’ve got, and it’s a week out, so keep an eye on it. The Sunday the 13th morning might be all right for a clean, small-wave session if you’re desperate. But otherwise, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Thu morning, min 19°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sat afternoon, min 17°C on Mon night). Winds increasing (light winds from the NW on Sat afternoon, fresh winds from the N by Tue morning). | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 7 | NNW 7 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | NW 15 | NW 13 | NW 12 | NW 11 | WNW 14 | WNW 11 | WNW 12 | NW 10 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph | ||||||||||||||||||||
101 | 82 | 85 | 62 | 65 | 59 | 59 | 101 | 101 | 183 | 494 | 407 | 273 | 168 | 451 | 585 | 363 | 745 | 574 | 824 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | on | cross-on | glassy | glassy | on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:46PM2.61m | 7:12AM2.51m | 7:40PM2.39m | 8:13AM2.35m | 8:55PM2.19m | 9:37AM2.25m | 10:33PM2.12m | 11:12AM2.31m | 00:04AM2.23m | 12:30PM2.52m | 1:11AM2.43m | 1:28PM2.77m | 2:02AM2.63m | |||||||
Low Tide | 00:55AM0.50m | 1:22PM0.60m | 1:49AM0.71m | 2:31PM0.77m | 3:05AM0.89m | 4:07PM0.85m | 4:44AM0.93m | 5:46PM0.74m | 6:11AM0.79m | 6:58PM0.51m | 7:13AM0.57m | 7:52PM0.27m | ||||||||
— | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | |
8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 33 | 31 | 27 | 28 | 27 | 31 | 27 | 23 | 21 | 22 | 21 | 19 | 20 | 20 | 18 | 19 | 19 | 18 |
Feels °C | 20 | 20 | 30 | 28 | 25 | 26 | 26 | 27 | 27 | 23 | 22 | 21 | 19 | 17 | 16 | 16 | 14 | 14 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NNW 7 | NNW 7 | NNW 6 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | NW 9 | NW 13 | NW 12 | NW 11 | NW 10 | WNW 11 | WNW 12 | NW 10 | — | — | — |
40 | 20 | 85 | 62 | 35 | 59 | 59 | 101 | 101 | 120 | 494 | 407 | 273 | 151 | 451 | 585 | 363 | — | — | — | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | NNW 8 | NW 9 | WNW 8 | WNW 9 | NNW 5 | NNW 5 | N 6 | NNW 6 | NW 15 | NW 9 | SW 12 | WNW 9 | WNW 14 | S 11 | — | — | — | — | — |
24 | 11 | 20 | 47 | 65 | 15 | 8 | 15 | 13 | 183 | 112 | 5 | 92 | 168 | 2 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | SSW 15 | SSW 14 | SSW 14 | SSW 14 | NW 10 | NW 10 | SW 13 | NNW 17 | NW 11 | SW 12 | — | S 12 | WNW 9 | — | — | — | — | — | — |
— | 22 | 20 | 20 | 19 | 16 | 25 | 7 | 27 | 5 | 6 | — | 3 | 65 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | — | — | — | — | — | NNW 6 | — | NNW 6 | NW 4 | NW 9 | NNW 4 | NNW 5 | NNW 5 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
101 | 82 | — | — | — | — | — | 17 | — | 22 | 4 | 199 | 34 | 39 | 98 | 158 | 299 | 745 | 574 | 824 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 34 | 34 | 1 | 34 | 1 | 0 | 0 | 34 | 0 | 223 | 34 | 34 | 34 | 34 | 222 | 238 | 132 | 222 | 391 | 238 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.










