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Surf Forecasts:
Coxos surf forecast from 26 Aug 2026:
- Most powerful swell: Friday 28 Aug, 7PM (local time) - 8ft (2.5m), 11s period, NW swell with 1,351 kJ wave energy.
Best Forecast Surf Conditions for Coxos this week:
The most powerful waves expected at Coxos in the next 16 days are 2.5m 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 0.2m 15s period and expected on Tuesday (Sep 01) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Fri 28th Aug) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, let's be real, it's a waiting game out here at Coxos. This reef ain't firing for a while, and the water is a touch colder than normal for this time of year, about 67°, so maybe grab a warmer spring suit.
The first real chance you get is the morning of Friday, August 28th. The wind will be light and offshore from the NNW, which is a dream. You’re looking at a 7ft WNW swell with an 11-second period, packing a solid amount of energy (1054). It’s a marginal call, but it's the best thing on the menu. The afternoon gets a bit messy with onshore wind, so that morning session is the one.
After that, it’s a long stretch of poor surf. The wind turns cross-on and gets gusty, chopping up the surface. Not much to write home about for the rest of the first week and into the next.
Now, for the long-range, keep your eye on the morning of Monday, September 7th. It's a promising one, but it's a long way out. The swell is a solid 8ft from the NNW with a very long 13-second period. That’s a massive energy reading (2702) and will be a powerful groundswell. Being a reef, it should handle that long period well, but at 8ft, it’s strictly for experts. The wind is light and cross-on, which is a bit of a bummer, but it’s the only real standout in the whole 16-day window. A big, powerful NNW swell.
So, bottom line: the early bird gets the wave on Friday, the 28th, and the experts should be circling the 7th of September. The rest is a lot of staring at the ocean.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Wed morning. Warm (max 21°C on Wed morning, min 18°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, light winds from the WNW by Fri morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 17°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 5 | W 7 | W 8 | W 7 | W 8 | WNW 10 | WNW 11 | NW 11 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 11 | NW 9 | NW 9 | NW 10 | NW 9 | NNW 9 | NNW 7 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 86 | 248 | 341 | 418 | 588 | 844 | 1144 | 1316 | 988 | 427 | 256 | 155 | 145 | 561 | 350 | 199 | 293 | 281 | 629 | 378 | 487 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 5:10AM2.82m | 5:24PM2.94m | 5:46AM2.76m | 6:02PM2.80m | ||||||||
Low Tide | 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 | 11:11AM0.19m | 11:35PM0.18m | 11:48AM0.28m | 00:12AM0.31m | ||||||||
 |  |  |  |  |  | | |  | | | | | | | | | | | | | |
 | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | — | 8:09 | — | — | 8:08 | — |
mm | 12 | — | 6 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 19 | 20 | 20 | 19 | 21 | 22 | 20 | 20 | 20 | 18 | 19 | 20 | 18 |
Feels °C | 17 | 18 | 18 | 14 | 16 | 18 | 21 | 20 | 17 | 18 | 17 | 18 | 21 | 22 | 20 | 17 | 16 | 14 | 14 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | NW 6 | SW 11 | W 8 | SW 11 | SW 11 | WNW 10 | WNW 11 | NW 11 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 11 | NW 9 | NW 9 | NW 10 | NW 9 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 9 | 5 | 341 | 5 | 4 | 844 | 1144 | 1316 | 988 | 427 | 256 | 155 | 145 | 561 | 350 | 199 | 293 | 281 | 23 | 22 | 21 |
Swell 2 Height (m) Direction Period (s) | NW 10 | — | SW 11 | — | NW 12 | SW 11 | — | — | — | S 10 | S 10 | — | NNW 12 | — | — | WNW 11 | SW 17 | SW 16 | S 9 | — | — |
| kJ | 4 | — | 5 | — | 6 | 4 | — | — | — | 2 | 2 | — | 57 | — | — | 23 | 11 | 10 | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | W 9 | — | — | — | — | — | — | — | — | — | — | — | NNW 10 | — | — | SW 18 | SW 11 | SW 10 | — | — | — |
| kJ | 2 | — | — | — | — | — | — | — | — | — | — | — | 10 | — | — | 12 | 5 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | W 7 | — | W 7 | W 8 | — | — | — | — | — | — | — | — | — | N 4 | NNW 5 | NNW 5 | NNW 6 | NNW 9 | NNW 7 | NNW 8 |
| kJ | 86 | 248 | — | 418 | 588 | — | — | — | — | — | — | — | — | — | 9 | 62 | 73 | 140 | 629 | 378 | 487 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 486 | 484 | 41 | 313 | 403 | 34 | 34 | 37 | 34 | 34 | 403 | 34 | 34 | 37 | 34 | 37 | 542 | 37 | 238 | 472 | 238 |
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.
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