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Surf Forecasts:
Coxos surf forecast from 15 Sep 2026:
- Best quality surf: Saturday 19 Sep, 7AM (local time) - 8ft (2.5m), 14s period, NNW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 1AM (local time) - 10ft (3.0m), 15s period, NNW swell with 3,497 kJ wave energy.
- Next surfable swell (1★+): Saturday 19 Sep, 7AM (local time) - 8ft (2.5m), 14s 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 Saturday (Sep 19) at 7AM. The primary swell is predicted to be 2.5m and 14s period with a secondary swell of 1.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Coxos in the next 16 days are 3.0m 15s and forecast to arrive on Saturday (Sep 19) at 1AM. 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 11s period and expected on Monday (Sep 21) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 19th Sep) | 8ft (2.5m) 14s |
| Best Surf | 7AM (Sat 19th Sep) | 8ft (2.5m) 14s |
| Most Powerful | 1AM (Sat 19th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s cookin’ for Coxos. For a place that’s usually pretty consistent, this forecast is a real mixed bag. The first few days are a write-off with strong northerly winds making a mess of things, so we’re looking at a period of poor conditions to start. But don’t lose hope, there’s a proper window of quality on the horizon.
The real standout here is Saturday the 19th of September. That morning, Coxos is gonna light up. We’ve got a good 7ft of groundswell from the NNW with a proper long period of 14 seconds. That means serious energy (1936) and proper lines coming through. The wind is a light offshore from the ESE, so the face is gonna be clean as a whistle. This is one for the experienced crew though – that size and power won’t be friendly to beginners. Just keep in mind, with that long period, the sets will be a bit more spaced out, so pick your moments. And being a reef break, it’s gonna handle that direction real well. The water temp is about average for this time of year, so no wetsuit drama.
Now, Sunday the 20th morning is still looking tidy. You’ll get a clean 6ft swell from the NNW with a solid offshore – not quite as epic as Saturday morning, but still a very good session if you missed the main event.
After that, the swell drops right off. There are a couple of mornings worth a look, like Monday the 21st and Wednesday the 23rd of September, where we get glassy conditions and small clean waves in the 3ft to 3ft range. The 23rd is especially nice – glassy as a lake with a 16-second period, but it’s small, so you’ll be working for it.
After the 25th, things get pretty weak and inconsistent. The energy really fades, and we're into the dun territory for the last few days of the month. A real quiet end to the forecast.
If you’re chasing the good stuff, your window is that Saturday the 19th of September morning. Mark it.
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Mon night, min 17°C on Tue night). Winds increasing (light winds from the N on Mon night, strong winds from the N by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Sun morning, min 17°C on Thu night). Winds decreasing (fresh winds from the N on Thu night, calm by Sun morning). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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 10 | NNW 5 | NNW 7 | NNW 9 | NNW 9 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 15 | NNW 14 | NNW 13 | NNW 12 | NNW 12 | NNW 11 | NW 10 | NW 13 | NW 12 | NW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 63 | 74 | 459 | 1494 | 1494 | 2064 | 848 | 1048 | 1266 | 1072 | 612 | 3497 | 1621 | 1725 | 1016 | 835 | 645 | 400 | 277 | 634 | 645 |
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-on | cross-on | cross-on | cross-off | cross-on | cross | off | on | cross | off | cross-on | cross-on |
High Tide | 5:44AM2.73m | 6:02PM2.62m | 6:18AM2.55m | 6:39PM2.37m | 6:56AM2.36m | 7:22PM2.13m | 7:44AM2.16m | 8:22PM1.92m | 8:58AM2.00m | 10:00PM1.81m | 10:42AM1.99m | 11:40PM1.88m | 12:03PM2.12m | 00:41AM2.05m | |||||||
Low Tide | 11:48AM0.36m | 00:04AM0.50m | 12:25PM0.57m | 00:38AM0.73m | 1:07PM0.80m | 1:19AM0.95m | 2:02PM1.01m | 2:18AM1.13m | 3:32PM1.14m | 4:00AM1.22m | 5:23PM1.11m | 5:40AM1.12m | 6:33PM0.94m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — |
 | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 18 | 18 | 19 | 19 | 21 | 20 | 18 | 21 | 21 | 21 | 27 | 24 | 25 | 29 | 27 | 25 | 26 | 25 | 23 |
Feels °C | 17 | 17 | 13 | 11 | 12 | 13 | 15 | 14 | 12 | 17 | 16 | 18 | 24 | 22 | 22 | 29 | 25 | 22 | 25 | 23 | 20 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NW 11 | NW 10 | S 13 | SW 13 | WNW 12 | NNW 9 | S 12 | SW 16 | NNW 15 | NW 13 | NNW 15 | NNW 14 | NNW 13 | NNW 12 | NNW 12 | NNW 11 | NW 10 | NW 10 | NW 12 | NW 12 |
| kJ | 63 | 33 | 110 | 3 | 6 | 365 | 848 | 3 | 10 | 22 | 175 | 3497 | 1621 | 1725 | 1016 | 835 | 645 | 400 | 250 | 634 | 645 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | S 13 | — | — | S 12 | NW 11 | S 16 | S 11 | SW 15 | NNW 18 | SW 14 | NNW 8 | SW 13 | S 13 | S 13 | S 11 | S 12 | NW 13 | S 11 | S 6 |
| kJ | 22 | 13 | 3 | — | — | 3 | 375 | 5 | 3 | 9 | 126 | 8 | 315 | 7 | 3 | 3 | 2 | 3 | 277 | 9 | 3 |
Swell 3 Height (m) Direction Period (s) | WNW 12 | — | — | — | — | — | S 18 | — | — | — | SW 14 | — | — | — | — | SW 13 | SW 13 | S 12 | S 11 | S 12 | S 12 |
| kJ | 15 | — | — | — | — | — | 6 | — | — | — | 8 | — | — | — | — | 7 | 6 | 3 | 9 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 5 | NNW 7 | NNW 9 | NNW 9 | NNW 10 | — | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | — | — | — | — | — | — | — | — | — |
| kJ | 15 | 74 | 459 | 1494 | 1494 | 2064 | — | 1048 | 1266 | 1072 | 612 | 454 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 418 | 583 | 583 | 418 | 126 | 36 | 418 | 132 | 36 | 226 | 34 | 0 | 146 | 32 | 0 | 36 | 1 | 0 | 36 | 29 |
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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