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Surf Forecasts:
Coxos surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 7AM (local time) - 7.5ft (2.3m), 11s period, WNW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 7.5ft (2.3m), 11s period, WNW swell with 1,260 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 4AM (local time) - 7ft (2.2m), 10s 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 Friday (Aug 28) at 4AM. The primary swell is predicted to be 2.2m and 10s period. The wind is predicted to be glassy 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 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 16s period and expected on Tuesday (Sep 01) at 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 28th Aug) | 7ft (2.2m) 10s |
| Best Surf | 7AM (Fri 28th Aug) | 7.5ft (2.3m) 11s |
| Most Powerful | 10AM (Fri 28th Aug) | 7.5ft (2.3m) 11s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, grab a coffee, this one’s a slow burner.
The first few days are garbage – onshore slop you wouldn’t paddle out for. The real shot is Friday morning, August 28th. That’s our moment.
Coxos is the only spot worth talking about. It’s an exposed reef, advanced only. Water’s sitting at about 67°, which is a touch cooler than usual for August – about a degree off, so throw on a 3/2.
The absolute standout is Friday morning, August 28th. Glassy conditions – dead flat wind – with a 2.3m groundswell from the WNW and an 11-second period. That swell energy is pumping, hitting 1260 (moderate to strong). For this reef, the direction is almost perfect. It’s going to be clean, powerful, and lined up. Crowds are likely, so expect some company, but it’ll be worth it. That kind of size is for experienced surfers only – beginners, stay on the beach.
Friday afternoon still has a 2.2m swell from the same direction, but the wind goes offshore from the NW and the conditions get a little trickier with tide. Still a solid option if you miss the window.
After that, the quality tanks. Saturday the 29th and Sunday the 30th are messy and cross-onshore. The whole first week of September is mostly onshore crud. There are two tiny glassy windows: Saturday morning, September 5th, with a 0.9m NW groundswell at 11 seconds, and Wednesday morning, September 9th, with a 0.9m WNW groundswell at a long 12 seconds. Both would be clean but small – fun for a grovel, not a standout.
The 4th of September morning is glassy with a 1.2m NNW swell, but the report calls it very ordinary, so don’t get excited.
Bottom line: Friday morning, August 28th is your only real standout. Everything else is either choppy, weak, or just average. The second week has a couple of clean small-swell days, but nothing to write home about. If you’re jonesing, keep an eye on that long-period groundswell early September – it could be clean and fun at a reef.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 21°C on Fri afternoon, min 18°C on Thu night). Winds decreasing (fresh winds from the W on Thu morning, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sun morning, min 17°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | W 7 | W 8 | WNW 10 | WNW 11 | WNW 11 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 10 | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | NNW 9 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 568 | 597 | 862 | 1260 | 1082 | 793 | 427 | 262 | 187 | 167 | 373 | 263 | 176 | 311 | 392 | 293 | 547 | 363 | 527 | 441 | 319 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | glassy | on | 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-on | cross-on | cross-on | cross-on |
High Tide | 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 | 6:25AM2.66m | 6:46PM2.61m | ||||||||
Low Tide | 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 | 12:31PM0.42m | 00:55AM0.50m | ||||||||
 |  |  | | | | | | | | | | | | | | | | | | | |
 | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — |
 | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 20 | 21 | 19 | 20 | 20 | 19 | 21 | 21 | 19 | 20 | 21 | 18 | 19 | 20 | 18 | 20 | 20 | 18 |
Feels °C | 15 | 15 | 19 | 19 | 19 | 18 | 17 | 17 | 19 | 19 | 18 | 16 | 16 | 18 | 15 | 14 | 15 | 13 | 17 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | WNW 10 | WNW 11 | WNW 11 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 10 | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | SSW 15 | SSW 14 | SSW 15 | SSW 16 | SSW 15 |
| kJ | 2 | 2 | 862 | 1260 | 1082 | 793 | 427 | 262 | 187 | 167 | 373 | 263 | 176 | 311 | 392 | 293 | 22 | 21 | 23 | 24 | 22 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 11 | — | — | — | S 10 | S 10 | — | W 13 | — | WNW 12 | W 11 | SW 17 | SW 16 | W 9 | — | — | — | — | — |
| kJ | — | — | 4 | — | — | — | 2 | 2 | — | 3 | — | 13 | 9 | 11 | 10 | 6 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SW 18 | S 11 | — | SSW 15 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 12 | 2 | — | 23 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 7 | W 8 | — | — | — | — | — | — | — | — | — | N 4 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 9 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 568 | 597 | — | — | — | — | — | — | — | — | — | 12 | 44 | 60 | 122 | 122 | 547 | 363 | 527 | 441 | 319 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 403 | 223 | 7 | 0 | 37 | 34 | 34 | 403 | 36 | 34 | 399 | 34 | 34 | 399 | 37 | 238 | 238 | 222 | 132 | 485 | 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.
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