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Surf Forecasts:
Coxos surf forecast from 1 Sep 2026:
- Best quality surf: Sunday 6 Sep, 1AM (local time) - 3.5ft (1.1m), 13s period, NW swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 4PM (local time) - 7ft (2.1m), 10s period, NNW swell with 799 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 1PM (local time) - 2.5ft (0.8m), 9s 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 Saturday (Sep 05) at 1PM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.2m and 13s. Another secondary swell of 0.9m and 6s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Coxos in the next 16 days are 2.1m 10s and forecast to arrive on Tuesday (Sep 08) at 4PM. Winds are predicted to be 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 Wednesday (Sep 02) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sat 5th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 1AM (Sun 6th Sep) | 3.5ft (1.1m) 13s |
| Most Powerful | 4PM (Tue 8th Sep) | 7ft (2.1m) 10s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break this down for the imperial crowd.
Look, this forecast for Coxos is a tough one. For the first week and a half, the wind is a constant headache. Mostly cross-onshore from the north and northwest, keeping the surface choppy and messy. There’s swell around, but it’s just not clean enough to surf properly.
The first tiny sign of life is on Saturday, September 5th morning. Swell is tiny, 3ft from the WNW with a 9-second period, and the wind is light from the NNE at 3 mph. It’s marginal and clean-looking, but you’ll be scratching for waves. Combined energy is weak (193).
Sunday, September 6th morning has a bit more going on. Swell comes up to 4ft from the NNW with a long 12-second period, and the wind is light from the NNW at 3 mph. That long period gives it some groundswell punch, and combined energy is moderate (544). It’s still a light cross-onshore, so not glassy, but it’s the cleanest we’ve seen all week.
Then the wind ruins it again until Saturday, September 12th, which is still only marginal with small, short-period junk.
The real window opens on Sunday, September 13th morning. This is the one to circle. Swell is 4ft from the NNW with an 8-second period, but the wind swings to the south at 3 mph, giving you clean cross-offshore conditions. Combined energy is moderate (313). For a reef like Coxos, which is fairly consistent and exposed to that NNW direction, this is the best-looking surf of the whole 16 days.
Monday, September 14th morning also has clean conditions with a 4ft WNW swell at 10 seconds and a light south wind, but it’s only rated as marginal. Still worth a paddle if you missed Sunday.
The last notable pulse is Wednesday, September 16th morning. Swell jumps to 6ft from the NW with a 12-second period, and combined energy is strong (976). That’s a lot of water. Wind is light from the north at 9 mph, cross-onshore, so it’ll be lumpy. At this size, it’s for experienced surfers only, and with that period, it could break straight and be better suited for kite surfing than paddling.
Water temp is around 69°F, which is about normal for this time of year.
Coxos can get crowded often, so expect company on that Sunday the 13th.
Best bet: Sunday, September 13th morning. The rest is a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Thu morning, min 17°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 32°C on Fri afternoon, min 18°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the N by Mon morning). | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 9 | NNW 9 | NNW 8 | NNW 7 | NNW 6 | NNW 7 | NNW 6 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NNW 12 | NNW 11 | WNW 15 | WNW 13 | WNW 12 | WNW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 440 | 404 | 206 | 121 | 72 | 105 | 75 | 65 | 59 | 59 | 101 | 101 | 99 | 412 | 472 | 426 | 485 | 757 | 633 | 427 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:02PM2.80m | 6:25AM2.66m | 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 | |||||||
Low Tide | 00:12AM0.31m | 12:31PM0.42m | 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 | ||||||||
 |  | | | | | |  |  |  | | | | | | | | | | | |
 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — |
 | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 18 | 21 | 21 | 22 | 30 | 30 | 24 | 26 | 32 | 31 | 32 | 32 | 28 | 28 | 24 | 20 | 21 | 21 | 18 |
Feels °C | 17 | 15 | 20 | 19 | 20 | 27 | 27 | 22 | 25 | 27 | 27 | 32 | 31 | 29 | 27 | 22 | 19 | 19 | 19 | 15 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | NW 8 | NW 8 | NW 8 | NNW 7 | NNW 6 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | NNW 5 | WNW 9 | NW 13 | NNW 12 | NNW 11 | WNW 15 | WNW 13 | WNW 12 | WNW 11 |
| kJ | 22 | 21 | 54 | 38 | 28 | 105 | 75 | 65 | 59 | 59 | 101 | 53 | 99 | 412 | 472 | 426 | 485 | 757 | 633 | 427 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 15 | SSW 16 | NNW 8 | NW 9 | WNW 8 | SSW 14 | SW 13 | NW 10 | SW 13 | WNW 9 | NW 12 | NNW 6 | WNW 8 | WNW 19 | NNW 11 | NNW 10 | — | — |
| kJ | — | — | 23 | 24 | 11 | 21 | 47 | 19 | 7 | 25 | 7 | 101 | 35 | 39 | 55 | 35 | 234 | 83 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | SSW 15 | — | SSW 15 | SSW 14 | SSW 14 | — | NW 8 | SW 13 | N 12 | NW 14 | NNW 16 | WNW 9 | SW 12 | SW 12 | WNW 9 | WNW 8 | — | — |
| kJ | — | — | 23 | — | 22 | 20 | 20 | — | 3 | 7 | 3 | 7 | 26 | 88 | 5 | 5 | 45 | 13 | — | — |
Wind waves Height (m) Direction Period (s) | NNW 9 | NNW 9 | NNW 8 | NNW 7 | NNW 6 | — | — | NNW 6 | NNW 5 | NNW 4 | NNW 5 | N 6 | NNW 6 | — | N 6 | NW 9 | NNW 5 | NNW 5 | NNW 6 | NNW 6 |
| kJ | 440 | 404 | 206 | 121 | 72 | — | — | 37 | 21 | 21 | 26 | 32 | 64 | — | 17 | 104 | 28 | 75 | 119 | 219 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 399 | 45 | 34 | 223 | 17 | 1 | 34 | 34 | 73 | 34 | 36 | 1 | 20 | 0 | 34 | 223 | 34 | 34 | 37 | 34 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Coxos surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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