
Surf Forecasts:
Coxos surf forecast from 3 Sep 2026:
- Best quality surf: Friday 4 Sep, 7AM (local time) - 2.5ft (0.7m), 8s period, WNW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 5.5ft (1.7m), 12s period, WNW swell with 830 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 7AM (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 7AM. 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 1.7m 12s and forecast to arrive on Monday (Sep 07) 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 0.2m 14s period and expected on Thursday (Sep 03) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 7AM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 10AM (Mon 7th Sep) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s on offer for the next couple of weeks at this one little corner of the coast.
Right off the bat, I gotta be straight with you – it’s a tough stretch. We’re looking at a long, frustrating run of slop and chop. For the first eleven days, from Thursday the 3rd all the way through to Sunday the 13th, there’s really nothing worth paddling out for. The wind is just relentless, mostly coming from the north and smacking the surface cross-onshore, turning any bit of swell into a bumpy mess. The wave energy stays low to moderate (between 51 and 511), and the period is often short, so even the few pulses that show up are just messy closeouts or blown-out ripples. The best you can hope for in that stretch is “questionable” conditions, and honestly, it’s not worth the hike.
Now, there is a flicker of something better on Monday the 14th morning. The wind finally swings around to the southeast, blowing straight offshore, and the water gets clean for a minute. You’ll see a tiny 2 ft swell from the NW with a moderate energy (124), but that’s barely a knee-high dribble. It’s surfable if you’re desperate for a nose-ride, but it’s not gonna get the heart pumping.
The real standout – and I’m talking the one true window of opportunity in this whole 16-day slog – is Wednesday the 16th. We’ve got a sizeable jump in swell: 7 ft from the NNW. The energy is strong (1100) and the period stretches to 9 seconds, so it’s got some bump. The wind is light out of the WNW, so conditions are messy but not totally blown out – it’s the most ridable it’s been in ages. But listen, 7 ft is expert territory. This isn’t a day for the learner; the walls will be well overhead and powerful at Coxos (reef). Given this spot is fairly consistent and exposed to NNW swells (which is exactly what’s on offer), it’s your best bet if you’ve got the skill. For the experienced ones, Wednesday morning is the call.
After that, Thursday the 17th still has some size but the wind picks up and turns onshore again, making it a shadow of Wednesday’s potential. By Friday the 18th, we’re back down to clean but tiny waist-high leftovers.
So here’s the summary: endure the first week and a half of nonsense, and if you’re an advanced surfer, circle Wednesday the 16th for a morning session at Coxos with a proper NNW swell. It’s not perfect, but it’s the best shot we’ve got.
-Rusty
Short Range ForecastMostly dry. Warm (max 34°C on Fri afternoon, min 18°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sun morning, min 17°C on Mon night). Winds increasing (light winds from the NNW on Sat night, fresh winds from the N by Tue afternoon). | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
AM | 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 7 | NNW 6 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | NNW 15 | NW 13 | NW 12 | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | NNW 6 | NNW 8 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph | |||||||||||||||||||||
85 | 55 | 65 | 59 | 59 | 101 | 101 | 152 | 494 | 407 | 273 | 431 | 830 | 565 | 382 | 253 | 465 | 349 | 373 | 345 | 454 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 2:16PM3.00m | 2:45AM2.80m | |||||||
Low Tide | 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 | 8:03AM0.35m | 8:37PM0.08m | ||||||||
7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | |
— | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 33 | 33 | 28 | 29 | 34 | 26 | 27 | 23 | 20 | 21 | 21 | 19 | 20 | 20 | 17 | 20 | 20 | 19 | 21 | 21 | 18 |
Feels °C | 30 | 31 | 26 | 27 | 32 | 25 | 26 | 23 | 20 | 19 | 18 | 17 | 17 | 16 | 13 | 15 | 15 | 15 | 17 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NNW 6 | NNW 6 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | NW 9 | NW 13 | NW 12 | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | NW 9 | — | — | — | W 7 | W 13 |
85 | 55 | 35 | 59 | 59 | 101 | 101 | 120 | 494 | 407 | 273 | 431 | 830 | 565 | 382 | 211 | — | — | — | 4 | 4 | |
Swell 2 Height (m) Direction Period (s) | NW 9 | WNW 8 | WNW 9 | NNW 5 | NW 10 | NNW 6 | NNW 6 | NNW 15 | NW 9 | WNW 9 | WNW 9 | NNW 10 | — | — | — | — | — | — | — | — | W 13 |
20 | 47 | 65 | 15 | 25 | 17 | 11 | 152 | 176 | 71 | 66 | 133 | — | — | — | — | — | — | — | — | 4 | |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | NNW 17 | N 11 | SW 12 | SW 12 | NW 15 | WNW 9 | — | — | — | — | — | — | — | — | — |
20 | 20 | 19 | 7 | 7 | 7 | 28 | 2 | 6 | 5 | 9 | 65 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 5 | — | — | NNW 6 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 8 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
— | — | — | — | 10 | — | — | 20 | 7 | 33 | 39 | 42 | 78 | 141 | 170 | 253 | 465 | 349 | 373 | 345 | 454 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 34 | 1 | 1 | 1 | 32 | 1 | 223 | 34 | 34 | 399 | 34 | 126 | 238 | 37 | 238 | 428 | 428 | 238 | 428 | 138 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










