Surf Forecasts:
Coxos surf forecast from 9 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 4AM (local time) - 8ft (2.5m), 8s period, NNW swell with 984 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 8s and forecast to arrive on Sunday (Aug 16) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 12s period and expected on Friday (Aug 14) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sun 16th Aug) | 8ft (2.5m) 8s |
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 on the cards for this stretch of coast.
To be straight with you, the next week and a half or so is a bit of a write-off. We are looking at a solid 9-day stretch of poor surf conditions from the 9th to the 17th of August. The wind is mostly hammering in from the NNW, which is a cross-onshore to onshore direction for the spot, and it's not letting up. The wave energy does build up, hitting moderate levels (342) and then strong to very strong (546, 789, 1050) by the weekend of the 15th and into the 17th, with swell heights climbing from 5ft up to 8ft. But all that energy is useless with the wind ruining the surface. Honestly, for a good chunk of that, the setup looks more interesting for kite surfing than paddle surfing, given the size and wind.
Now, there is a light at the end of the tunnel. The first real chance you get is on the morning of Tuesday, the 18th of August. The wind swings around to a light S at only 3 mph, creating a cross-offshore breeze. That's a massive positive. It's going to be clean. The swell is still a solid 5ft from the NNW with moderate energy (344), but it's a short period of 8 seconds. For a reef break like Coxos, that longer period isn't an issue, but the short period means it won't have the same grunt. Still, it is the standout of the entire forecast. The water temp is currently sitting at 68°, which is about average for the time of year, so nothing weird there.
After that, Wednesday the 19th offers clean conditions again with cross-offshore winds, but the swell drops off quickly to 3ft and 3ft, and the energy falls away to 143 and 116. It's a cruiser, but not the main event.
Looking further out, the morning of Monday the 24th of August shows a pulse of 7ft swell from the NNW with strong energy (600), but it's another cross-onshore wind situation. The forecast is marked as marginal, so don't get your hopes up too much for that one.
So, to sum it up: you've got a long wait. The best, and really the only true standout, is the morning of Tuesday the 18th. It's late in the period, but it should be clean with some decent size. Everything else is blown out or too small.
Stay patient, Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sun morning, min 19°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Wed morning, min 19°C on Wed night). Winds increasing (light winds from the N on Wed morning, strong winds from the N by Fri night). | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 7 | WNW 7 | WNW 7 | NW 8 | NW 8 | NW 7 | NW 12 | NNW 12 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 10 | NW 11 | WNW 10 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 86 | 91 | 94 | 60 | 82 | 23 | 49 | 53 | 77 | 120 | 154 | 147 | 154 | 117 | 179 | 212 | 195 | 189 | 546 | 590 | 789 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | on | cross-on | cross-on | 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 | 12:33PM2.50m | 1:13AM2.45m | 1:37PM2.74m | 2:11AM2.63m | 2:30PM2.98m | 3:01AM2.79m | 3:17PM3.16m | 3:45AM2.89m | 4:01PM3.26m | 4:27AM2.93m | 4:42PM3.25m | 5:07AM2.90m | 5:22PM3.14m | ||||||||
Low Tide | 6:58PM0.54m | 7:19AM0.55m | 7:59PM0.31m | 8:14AM0.36m | 8:50PM0.09m | 9:01AM0.19m | 9:36PM-0.05m | 9:45AM0.08m | 10:18PM-0.10m | 10:26AM0.04m | 10:58PM-0.07m | 11:05AM0.09m | 11:36PM0.05m | ||||||||
 | |  | | | | | | | | | | | | | | |  |  | | | |
 | 6:45 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 19 | 22 | 22 | 19 | 22 | 22 | 20 | 20 | 21 | 19 |
Feels °C | 21 | 21 | 20 | 22 | 21 | 19 | 21 | 21 | 19 | 21 | 21 | 17 | 21 | 20 | 16 | 19 | 18 | 16 | 15 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | WNW 7 | WNW 7 | NW 8 | NW 8 | NW 7 | NW 12 | NNW 12 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 10 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | — | SW 18 | S 18 |
| kJ | 86 | 91 | 94 | 60 | 82 | 23 | 38 | 53 | 77 | 120 | 154 | 147 | 154 | 82 | 179 | 130 | 124 | 86 | — | 12 | 6 |
Swell 2 Height (m) Direction Period (s) | NNW 11 | NNW 10 | NNW 10 | WNW 7 | NW 11 | W 6 | NW 9 | WNW 11 | NNW 10 | NNW 10 | NNW 9 | NNW 10 | NNW 10 | NW 11 | — | — | — | — | — | — | — |
| kJ | 47 | 39 | 63 | 35 | 5 | 11 | 21 | 23 | 58 | 51 | 32 | 33 | 18 | 117 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | N 7 | S 11 | W 12 | S 12 | S 12 | NNW 10 | WNW 10 | NNW 8 | — | — | — | — | NW 12 | — | — | — | — | — | — | — | — |
| kJ | 4 | 2 | 3 | 3 | 3 | 20 | 19 | 14 | — | — | — | — | 23 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | N 6 | — | — | NNW 3 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
| kJ | — | 1 | — | — | 4 | 16 | 49 | 51 | 49 | 39 | 47 | 46 | 51 | 84 | 98 | 212 | 195 | 189 | 546 | 590 | 789 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 37 | 34 | 34 | 37 | 45 | 126 | 399 | 34 | 34 | 222 | 34 | 34 | 408 | 37 | 132 | 541 | 255 | 238 | 494 | 238 |
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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