Surf Forecasts:
Coxos surf forecast from 24 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 7AM (local time) - 5ft (1.5m), 7s period, W swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 10ft (3.0m), 12s period, NW swell with 2,824 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 7AM (local time) - 5ft (1.5m), 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 7AM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 0.1m 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 12s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 25th Aug) | 5ft (1.5m) 7s |
| Best Surf | 7AM (Tue 25th Aug) | 5ft (1.5m) 7s |
| Most Powerful | 10AM (Fri 28th Aug) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming down the pipe for the next couple of weeks.
Right off the bat, I gotta be straight with you – the first few days are pretty grim. We’ve got a poor run of surf through to the end of August, with messy wind and choppy, lumpy conditions. Not much to get excited about.
The real standout, the one that’s got my heart thumping, is Friday, 28 August. That morning, Coxos (reef) is looking like a proper gem. We’re talking a solid 10 ft swell rolling in from the NW with a clean offshore wind from the NNW. The period is a juicy 12 seconds, which means groundswell energy with real punch – that’s the kind of stuff that makes this reef light up. The combined energy is pumping hard at (2824). It’s going to be a big, powerful day, definitely one for the experienced crew. The water temp is about average for the time of year, nothing unusual there.
The afternoon of the 28th keeps the swell at 10 ft from the NW, though the wind swings a touch more onshore, so the morning session is your best bet. Crowds are often an issue at Coxos, so get in early.
After that little burst, we drop back into smaller, choppier stuff through the end of August and into the first days of September. There’s a gap of poor conditions until we get to Tuesday, 1 September, where the swell bumps back up to 7 ft from the NNW, but it’s marred by a fresh cross-onshore wind, so it’s messy.
Looking further out, Saturday, 5 September sees another big pulse of swell – 10 ft in the morning and ramping up to 12 ft from the NNW in the afternoon. That’s serious size, but the wind is cross-onshore and the conditions are reported as choppy, so it’s more of a power session for experts only. The combined energy hits (2547) in the afternoon – that’s a lot of water moving.
Then, on Sunday, 6 September, we get a very long-period groundswell sneaking in from the WNW at 18 seconds – that’s a rare, deep pulse. The height is a more manageable 4 ft, but don’t let that fool you; with that period, the sets will be fat and powerful. A reef like Coxos will handle that beautifully, but the wind is still cross-onshore, so it’s not going to be glassy perfection. Still, a very interesting session for the keen ones.
The rest of the second week looks pretty average – small, messy, and cross-onshore. No real standouts after that 5th and 6th of September.
So, to wrap it up: Friday morning, 28 August is your pick of the fortnight. Clean, big, and proper. After that, keep an eye on the 5th and 6th of September for size and long-period energy, but expect some wind chop.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Wed morning. Warm (max 22°C on Mon morning, min 20°C on Sun night). Winds decreasing (strong winds from the SW on Mon morning, calm by Mon night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Warm (max 21°C on Thu afternoon, min 17°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | WSW 8 | WSW 8 | W 7 | WNW 7 | WNW 7 | W 6 | W 6 | W 8 | WNW 9 | WNW 8 | WNW 9 | WNW 10 | NW 12 | NW 11 | NW 10 | NW 9 | NW 9 | NW 8 | NW 8 | NW 7 | NW 7 |
Wave Graph | |||||||||||||||||||||
1032 | 730 | 251 | 210 | 124 | 37 | 64 | 300 | 600 | 682 | 834 | 1699 | 2824 | 1995 | 882 | 440 | 281 | 171 | 116 | 91 | 77 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 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 | 4:37AM2.82m | 4:50PM3.02m | ||||||||
Low Tide | 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 | 10:37AM0.16m | 11:01PM0.10m | |||||||
6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | |
— | 8:21 | — | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | |
mm | 2 | — | — | — | — | 1 | 2 | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 21 | 21 | 19 | 20 | 20 | 18 | 21 | 21 | 20 |
Feels °C | 19 | 20 | 20 | 23 | 21 | 21 | 18 | 19 | 18 | 16 | 16 | 17 | 19 | 19 | 19 | 17 | 17 | 16 | 20 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | N 8 | NNW 8 | W 7 | WNW 7 | WNW 7 | W 6 | NNW 6 | NNW 6 | WNW 9 | SW 11 | SW 11 | WNW 10 | NW 12 | NW 11 | NW 10 | NW 9 | NW 9 | NW 8 | NW 8 | NW 7 | NW 7 |
5 | 13 | 251 | 210 | 124 | 37 | 15 | 4 | 600 | 5 | 5 | 1699 | 2824 | 1995 | 882 | 440 | 281 | 171 | 116 | 91 | 77 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SSW 6 | N 7 | SW 12 | NNW 6 | NW 10 | SW 11 | SW 11 | — | — | S 11 | — | — | — | S 10 | — | S 11 | W 13 | WNW 12 | WNW 11 |
7 | 6 | 32 | 1 | 6 | 27 | 4 | 5 | 5 | — | — | 2 | — | — | — | 2 | — | 2 | 3 | 14 | 44 | |
Swell 3 Height (m) Direction Period (s) | — | — | N 8 | SW 12 | W 10 | NW 11 | W 9 | — | — | — | — | — | — | — | — | — | — | — | S 10 | S 10 | NNW 8 |
— | — | 4 | 6 | 2 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 20 | |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 8 | — | — | — | — | W 6 | W 8 | — | WNW 8 | WNW 9 | — | — | — | — | — | NNW 3 | — | — | NW 2 | — |
1032 | 730 | — | — | — | — | 64 | 300 | — | 682 | 834 | — | — | — | — | — | 4 | — | — | 1 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 399 | 272 | 34 | 20 | 31 | 49 | 598 | 403 | 144 | 414 | 223 | 155 | 36 | 238 | 34 | 34 | 403 | 34 | 34 | 399 | 34 |
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.











