
Surf Forecasts:
Coxos surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 10AM (local time) - 3ft (0.9m), 13s period, NW swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 7AM (local time) - 10ft (3.0m), 10s period, NNW swell with 2,000 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 10AM (local time) - 3ft (0.9m), 13s period with NW 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 (Sep 13) at 10AM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.7m and 7s. 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 10s and forecast to arrive on Thursday (Sep 17) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 13s period and expected on Wednesday (Sep 16) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 13th Sep) | 3ft (0.9m) 13s |
| Best Surf | 10AM (Sun 13th Sep) | 3ft (0.9m) 13s |
| Most Powerful | 7AM (Thu 17th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Right, mates, Rusty here. Let's have a look at what the next couple of weeks are shaping up like for our stretch of coast.
We’re kicking off Friday the 11th, but honestly, it’s a bit of a slow start. The first few days are a write-off with choppy, cross-onshore winds and messy waves, nothing worth paddling out for. We’ll see a bit of a lull in the action through to Saturday.
Alright, here’s where it gets interesting. Sunday the 13th is where we finally get a proper window. Early morning, Coxos is looking clean with glassy conditions and a clean 3 ft NW swell rolling in. The period is a solid 13 seconds, so there’s some proper groundswell energy behind it – the combined energy is sitting at a decent 382. This is the standout of the early run. The water temp is 64°, which is much colder than normal for this time of year, so you’ll want a good steamer.
Now, don’t get too comfortable, because the wind turns messy again through Monday afternoon and Tuesday, with the swell dropping off and the cross-onshore chop coming back.
Hold onto your boards, because Wednesday the 16th sees a big pulse of swell. We’re looking at a solid 10 ft NNW swell, but the wind is howling at 28 mph, making it a complete mess. The wave energy is massive – 1498 – but it’s a kite-surfing day, not a paddle-surfing one.
Thursday the 17th morning is a bit more manageable with 8 ft clean conditions, but it’s still a big, powerful wave. This is for experts only. The wind is cross-offshore, so the shape should be there, but it’s pushing the limits.
The real standout in the second week? Saturday the 19th. We get another glassy morning with a solid 5 ft NNW swell, period at 11 seconds, and the energy is a good 499. The wind is offshore and light, making for a clean session. This is your best bet for a proper surf, but expect some company as this spot can get crowded.
Then, Tuesday the 22nd morning is another beauty. A glassy start with a clean 5 ft NW swell, period at 12 seconds, and the wave energy is high at 881. The wind is light, so conditions should be pristine. A true highlight of the long-range forecast.
After that, the swell fades and the wind turns sloppy again through to the end of the outlook.
So, to sum it up: Sunday the 13th morning is your early gem, and Saturday the 19th and Tuesday the 22nd mornings are the standouts for the second week. Keep an eye on the wind forecasts, because when it’s clean, this place is firing.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sun morning, min 19°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Mon afternoon, min 17°C on Tue night). Winds increasing (light winds from the NW on Mon afternoon, strong winds from the N by Tue night). | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 | NNW 8 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NNW 10 | NW 12 | NNW 7 | NNW 9 | NNW 9 | NNW 10 | NNW 11 | NNW 10 | NNW 9 |
Wave Graph | ||||||||||||||||||||
68 | 71 | 144 | 111 | 99 | 290 | 520 | 435 | 242 | 169 | 102 | 63 | 39 | 326 | 1550 | 1474 | 1712 | 1641 | 799 | 866 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-off | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:01AM2.96m | 4:15PM3.17m | 4:36AM2.94m | 4:51PM3.04m | 5:10AM2.86m | 5:26PM2.85m | 5:44AM2.73m | 6:02PM2.62m | 6:18AM2.55m | 6:39PM2.37m | 6:56AM2.36m | 7:22PM2.13m | ||||||||
Low Tide | 9:53PM-0.07m | 10:02AM0.03m | 10:27PM-0.02m | 10:38AM0.08m | 11:00PM0.11m | 11:13AM0.19m | 11:32PM0.29m | 11:48AM0.36m | 00:04AM0.50m | 12:25PM0.57m | 00:38AM0.73m | 1:07PM0.80m | 1:19AM0.95m | |||||||
— | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | |
7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 26 | 25 | 25 | 28 | 26 | 26 | 28 | 24 | 22 | 21 | 20 | 19 | 18 | 19 | 19 | 21 | 20 | 18 |
Feels °C | 19 | 21 | 25 | 23 | 24 | 27 | 24 | 25 | 27 | 23 | 21 | 19 | 17 | 15 | 12 | 13 | 14 | 16 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NNW 10 | NW 9 | WNW 11 | S 13 | SW 13 | NW 12 | NNW 11 | NW 11 | NNW 9 |
68 | 71 | 144 | 111 | 99 | 290 | 520 | 435 | 242 | 169 | 102 | 63 | 39 | 76 | 3 | 6 | 416 | 1641 | 268 | 866 | |
Swell 2 Height (m) Direction Period (s) | W 7 | NNW 9 | WNW 10 | WNW 9 | WNW 9 | NNW 7 | NNW 7 | NNW 6 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | NW 12 | — | — | — | SW 12 | SW 18 | S 12 | SW 16 |
4 | 17 | 54 | 68 | 64 | 48 | 38 | 20 | 46 | 46 | 40 | 22 | 34 | — | — | — | 6 | 12 | 3 | 10 | |
Swell 3 Height (m) Direction Period (s) | WNW 8 | WNW 9 | SW 13 | NW 12 | NW 15 | W 9 | S 12 | S 11 | NNW 6 | NNW 6 | NNW 5 | WNW 12 | WNW 8 | — | — | — | — | S 12 | S 16 | S 11 |
7 | 16 | 7 | 6 | 80 | 40 | 3 | 2 | 23 | 12 | 3 | 15 | 22 | — | — | — | — | 3 | 5 | 2 | |
Wind waves Height (m) Direction Period (s) | NNW 6 | — | — | — | — | — | — | — | — | — | NNW 4 | NNW 4 | NNW 4 | NNW 7 | NNW 9 | NNW 9 | NNW 10 | — | NNW 10 | — |
55 | — | — | — | — | — | — | — | — | — | 5 | 8 | 26 | 326 | 1550 | 1474 | 1712 | — | 799 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 223 | 36 | 1 | 34 | 12 | 0 | 34 | 1 | 0 | 34 | 34 | 34 | 598 | 418 | 583 | 418 | 126 | 34 | 225 | 126 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
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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.










