Surf Forecasts:
Coxos surf forecast from 23 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 10AM (local time) - 4.5ft (1.4m), 7s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 7PM (local time) - 7.5ft (2.3m), 11s period, NW swell with 1,232 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 10AM (local time) - 4.5ft (1.4m), 7s period with W 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 Tuesday (Aug 25) at 10AM. The primary swell is predicted to be 1.4m and 7s period with a secondary swell of 0.2m and 7s. 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 2.3m 11s and forecast to arrive on Friday (Aug 28) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Sunday (Aug 23) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 25th Aug) | 4.5ft (1.4m) 7s |
| Best Surf | 10AM (Tue 25th Aug) | 4.5ft (1.4m) 7s |
| Most Powerful | 7PM (Fri 28th Aug) | 7.5ft (2.3m) 11s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let’s talk about the next couple of weeks for Coxos.
To be straight with you, it’s looking like a pretty grim run. The forecast is full of poor conditions, strong onshore winds, and a whole lot of chop. You’re going to have to be patient, because for the first five days, from Sunday the 23rd through to Thursday the 27th, it’s mostly a write-off. The swell is there, sometimes head-high, but the wind is wrecking it, and there’s no point even suiting up for that mess.
The water temp is about average for the time of year, so nothing weird there.
Now, if you’re desperate, there’s a tiny window on Tuesday morning, August 25th. We get a drop in the wind, with a light cross-off breeze from the SW and some clean conditions. The swell is only around 5 ft from the W with a weak period of 7 seconds, so it’s going to be small and a bit weak (combined energy of 193). It’s surfable, but it’s nothing to write home about. Just a chance to get wet if you’re really jonesing.
The only real standout, and I mean the *only* one, comes on Friday morning, August 28th. This is the best bet on offer. The swell picks up to 7 ft from the NW with a period of 10 seconds, giving it some decent energy (combined energy of 1066). The wind is a gentle cross-onshore breeze from the N, which keeps it fairly clean, though it’ll still have a bit of chop. This is the biggest, most powerful swell of the whole 16-day window. It’s a bit much for beginners, but for the rest of you, this is your session.
After that, we drop back into a long, drawn-out fade. From the 29th of August all the way through to the 7th of September, it’s a bleak run. The swell disappears, the wind stays onshore or cross-onshore, and the conditions are consistently poor. There’s a good 8-day gap with no real recommendations. It’s just flat and choppy. For a spot like Coxos, this kind of blank run is more normal for this time of year.
Stay tuned, forecasts can change, but right now, lock in that Friday morning and don't hold your breath for the rest.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Sun morning. Warm (max 22°C on Sun afternoon, min 19°C on Sat night). Winds decreasing (fresh winds from the SW on Mon morning, light winds from the WSW by Mon night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Warm (max 21°C on Tue night, min 18°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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) | WNW 11 | W 10 | WSW 9 | WSW 8 | WSW 8 | W 7 | W 7 | W 7 | WNW 7 | WSW 5 | WNW 6 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 10 | NW 11 | NW 10 | NNW 10 | NNW 9 | NNW 9 |
Wave Graph | |||||||||||||||||||||
718 | 563 | 826 | 723 | 614 | 311 | 189 | 138 | 77 | 55 | 123 | 277 | 291 | 382 | 551 | 1066 | 1149 | 1006 | 670 | 470 | 216 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:36PM2.16m | 1:11AM2.08m | 1:28PM2.34m | 1:54AM2.25m | 2:08PM2.54m | 2:30AM2.42m | 2:43PM2.72m | 3:03AM2.57m | 3:15PM2.87m | 3:34AM2.69m | 3:46PM2.98m | 4:05AM2.78m | 4:17PM3.03m | ||||||||
Low Tide | 6:14AM1.07m | 7:03PM0.92m | 7:12AM0.91m | 7:48PM0.74m | 7:53AM0.72m | 8:24PM0.55m | 8:28AM0.54m | 8:57PM0.38m | 9:01AM0.39m | 9:28PM0.24m | 9:32AM0.26m | 9:59PM0.14m | 10:04AM0.19m | 10:29PM0.09m | |||||||
6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | |
— | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | |
mm | 6 | 1 | 8 | 3 | — | — | — | — | — | 2 | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 20 | 19 | 20 | 20 | 18 | 21 | 20 | 19 |
Feels °C | 17 | 18 | 17 | 18 | 20 | 21 | 22 | 22 | 22 | 19 | 19 | 19 | 18 | 16 | 17 | 18 | 17 | 16 | 18 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | W 10 | N 8 | N 8 | NNW 8 | W 7 | W 7 | W 7 | WNW 7 | NW 6 | SSW 5 | WNW 8 | WNW 8 | SW 11 | WNW 8 | NW 10 | NW 11 | NW 10 | NNW 10 | — | NNW 9 |
718 | 563 | 10 | 10 | 13 | 311 | 189 | 138 | 77 | 24 | 8 | 277 | 291 | 5 | 551 | 1066 | 1149 | 1006 | 670 | — | 216 | |
Swell 2 Height (m) Direction Period (s) | N 8 | N 8 | SSW 13 | SW 13 | SW 13 | N 8 | N 7 | N 6 | NW 11 | NW 10 | SW 11 | SW 11 | SW 11 | — | SW 11 | S 11 | — | — | — | — | S 12 |
49 | 33 | 17 | 7 | 6 | 5 | 4 | 1 | 4 | 4 | 5 | 5 | 5 | — | 4 | 2 | — | — | — | — | 3 | |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | — | — | SW 13 | SW 12 | SW 12 | SW 12 | W 10 | W 9 | — | — | — | — | — | — | — | — | — | — | — |
18 | 17 | — | — | 6 | 6 | 6 | 6 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | WSW 9 | WSW 8 | WSW 8 | — | — | — | — | WSW 5 | WNW 6 | — | — | WNW 8 | — | — | — | — | — | NNW 9 | NNW 5 |
93 | 154 | 826 | 723 | 614 | — | — | — | — | 55 | 123 | — | — | 382 | — | — | — | — | — | 470 | 24 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 144 | 156 | 142 | 405 | 272 | 37 | 0 | 41 | 41 | 144 | 482 | 154 | 144 | 223 | 34 | 34 | 238 | 34 | 34 | 403 | 36 |
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.











