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Surf Forecasts:
Coxos surf forecast from 24 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 1AM (local time) - 3ft (0.9m), 6s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 10ft (3.0m), 11s period, WNW swell with 1,862 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 1AM (local time) - 3ft (0.9m), 6s 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 Wednesday (Aug 26) at 1AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.1m and 11s. 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 11s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Monday (Aug 24) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 26th Aug) | 3ft (0.9m) 6s |
| Best Surf | 1AM (Wed 26th Aug) | 3ft (0.9m) 6s |
| Most Powerful | 4AM (Fri 28th Aug) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a solid 16-day window ahead, but I won’t lie – it’s a slow start. The first week is a write-off with messy, onshore winds and poor conditions. The real standout is a very special window on the Tuesday of the second week, so keep your eyes on that.
The pattern starts rough. From Monday the 24th through to Monday the 7th of September, we’re stuck in a cycle of cross-shore and cross-onshore winds, mostly from the W and N directions. The swell sticks around, but the conditions are just ugly. There’s a period around Friday the 28th of August where the swell jumps up to 10ft (WNW, 11s period) with a strong offshore wind, and the combined energy hits 2252 – that’s serious power. But the report says it’s poor, so I’m calling it: the wind is just too strong, and it’s likely a washing machine out there. Not for the faint of heart, and definitely not clean.
After that, the week of the 1st to the 7th of September is a grind. Swell drops, winds stay fresh and cross-onshore, and the surf quality is just not there. It’s a long, blank run for any decent waves.
Now, here’s where it gets interesting. The standout of the entire forecast is the morning of Tuesday, the 8th of September. We’ve got Coxos – a reef break that’s rated for advanced surfers. It’s fairly consistent and often has crowds, so expect company. The wind is dead calm, glassy, with a very light breeze from the SE. The swell is 6ft from the WNW, with a very long period of 15 seconds. That’s proper groundswell. The combined energy is 1786 (strong). The guidance says it’s excellent for experienced surfers. The optimum swell direction is NNW, and we’re getting WNW – that’s a bit off, but the quality of the swell and the glassy conditions make this the pick of the batch. The water temperature is 66°, which is a bit colder than usual for this time of year (anomaly of -3°), but once you’re in the water, you won’t care.
The afternoon of the 8th holds some size, but the wind swings onshore, so session that morning. There’s a glimmer on the morning of Monday the 7th of September too, with a light cross-onshore breeze and 4ft swell, but it’s only marginal. The 8th morning is the true winner.
So, to sum it up: wait through the trash. The morning of the 8th of September at Coxos is your golden ticket. Clean, powerful, long-period groundswell. It’s one for the experts only. Get in early.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Wed morning. Warm (max 22°C on Mon afternoon, min 19°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the WSW by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Thu afternoon, min 17°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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 | W 7 | WNW 7 | WNW 7 | WNW 6 | WSW 5 | W 7 | W 8 | W 8 | WNW 8 | WNW 10 | WNW 11 | WNW 10 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 730 | 315 | 166 | 121 | 62 | 80 | 254 | 415 | 504 | 585 | 1351 | 1490 | 886 | 520 | 307 | 216 | 125 | 167 | 161 | 241 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross-on | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 7:48PM0.74m | 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 | — | — | 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 | — | — | — | — | — | 7 | — | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 20 | 20 | 18 | 20 | 20 | 18 | 21 | 21 | 18 |
Feels °C | 20 | 20 | 22 | 21 | 20 | 19 | 18 | 18 | 15 | 16 | 17 | 17 | 16 | 15 | 17 | 17 | 16 | 19 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | W 7 | WNW 7 | WNW 7 | WNW 6 | NNW 6 | W 7 | W 8 | SW 11 | WNW 8 | WNW 10 | WNW 11 | WNW 10 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | S 10 |
| kJ | 6 | 315 | 166 | 121 | 62 | 15 | 254 | 415 | 5 | 585 | 1351 | 1490 | 886 | 520 | 307 | 216 | 125 | 167 | 161 | 2 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 12 | N 7 | SW 12 | NW 11 | NW 10 | NNW 6 | SW 11 | — | SW 11 | S 11 | — | — | — | NNW 8 | NNW 8 | NNW 8 | S 11 | N 9 | — |
| kJ | 6 | 6 | 1 | 6 | 5 | 4 | 4 | 5 | — | 5 | 2 | — | — | — | 13 | 7 | 6 | 2 | 6 | — |
Swell 3 Height (m) Direction Period (s) | — | N 8 | SW 12 | W 10 | W 10 | W 9 | SW 11 | — | — | — | — | — | — | — | S 10 | S 10 | S 12 | W 13 | N 8 | — |
| kJ | — | 5 | 6 | 2 | 2 | 2 | 5 | — | — | — | — | — | — | — | 2 | 2 | 3 | 3 | 1 | — |
Wind waves Height (m) Direction Period (s) | WSW 8 | — | — | — | — | WSW 5 | — | — | W 8 | — | — | — | NNW 3 | — | — | — | N 3 | — | — | NW 8 |
| kJ | 730 | — | — | — | — | 80 | — | — | 504 | — | — | — | 3 | — | — | — | 2 | — | — | 241 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 271 | 34 | 1 | 41 | 0 | 581 | 403 | 105 | 320 | 271 | 105 | 34 | 263 | 34 | 34 | 399 | 34 | 34 | 399 | 37 |
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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