
Surf Forecasts:
Coxos surf forecast from 10 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 7AM (local time) - 6.5ft (2.0m), 9s period, NNW swell with 601 kJ wave energy.
Best Forecast Surf Conditions for Coxos this week:
The most powerful waves expected at Coxos in the next 16 days are 2.0m 9s and forecast to arrive on Sunday (Aug 16) at 7AM. 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 16s period and expected on Tuesday (Aug 18) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sun 16th Aug) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a good look at the 16-day horizon for Coxos.
First up, I gotta be straight with you – we're looking at a long, tough stretch of poor conditions here. For the better part of two weeks, the wind is just not playing ball. We've got moderate to fresh breezes howling from the N and NNW, almost always cross-onshore, and that's going to make a mess of things. The surf is around, but it’s choppy and lumpy, and honestly, not worth paddling out for. From Monday the 10th all the way through to Saturday the 22nd, the call is pretty bleak. Swell energy is moderate, climbing from around 94 to over 400, but that doesn’t matter when the wind is junking it up.
Now, let’s talk about that water. On the 10th, it's sitting at 69°F with a 0.5°F anomaly, so pretty much what you'd expect for this time of year.
But then, things get real interesting. After that long, frustrating wait, we get two real standouts that are worth planning around.
The first is on Sunday the 23rd of August. We get a solid 8ft swell from the NNW, and here's the kicker – the wind swings to a light 6 mph S breeze, going cross-offshore. The energy reading jumps to a massive 1900, which is strong stuff. This is going to be a proper groundswell with an 11-second period, so it’ll have some push. It’s a big day though, over the 8ft mark, so this one is for the experienced crew only. Conditions are described as clean, so the window on that morning is going to be the pick of the entire forecast.
Then, the next day, Monday the 24th of August, is even more of a gem. We’ve got a 8ft NNW swell, still big and powerful with energy at 1346 and a 9-second period, but the wind is glassy. A 3 mph SE breeze with the description "glass." That is a rare and beautiful thing. For a reef break like Coxos, that’s the kind of lineup you dream about. Again, it’s a big wave – too big for beginners – but for the chargers, that Monday morning could be the session of the month. Just keep an eye on those rain showers and a possible thunderstorm rolling through later.
So, the story is simple: a long, dry spell of wind-affected slop, bookended by two truly promising days of hefty, clean surf for the experienced surfer at Coxos.
Stay patient, stay stoked.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu afternoon, min 20°C on Thu night). Mainly strong winds. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | NW 8 | NW 7 | NW 12 | NNW 6 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 7 | NNW 7 | NNW 7 | NW 10 | NNW 8 | NNW 8 | NNW 9 | NNW 8 | NNW 8 |
Wave Graph | ||||||||||||||||||||
82 | 23 | 49 | 53 | 77 | 120 | 154 | 154 | 163 | 194 | 175 | 168 | 163 | 223 | 303 | 346 | 512 | 563 | 432 | 339 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore 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 | cross-on | on | cross-on |
High Tide | 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 | 5:45AM2.80m | 6:01PM2.95m | ||||||||
Low Tide | 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 | 11:44AM0.20m | 00:12AM0.24m | |||||||
— | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | |
8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:32 | — | — | 8:31 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 22 | 22 | 20 | 23 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 20 | 21 | 21 | 20 |
Feels °C | 20 | 19 | 21 | 20 | 19 | 22 | 21 | 19 | 21 | 20 | 18 | 20 | 19 | 17 | 20 | 19 | 16 | 19 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 7 | NW 12 | NNW 12 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 8 | NNW 8 |
82 | 23 | 38 | 53 | 77 | 120 | 154 | 154 | 163 | 194 | 175 | 130 | 124 | 138 | 264 | 346 | 512 | 563 | 432 | 339 | |
Swell 2 Height (m) Direction Period (s) | NW 11 | W 6 | NW 9 | WNW 11 | NNW 10 | NNW 10 | NNW 9 | NNW 10 | NNW 10 | N 9 | — | — | — | — | NW 10 | WNW 9 | S 18 | SW 16 | SW 16 | SW 15 |
5 | 11 | 21 | 23 | 58 | 51 | 32 | 33 | 18 | 6 | — | — | — | — | 303 | 165 | 6 | 10 | 11 | 9 | |
Swell 3 Height (m) Direction Period (s) | S 12 | NNW 10 | WNW 10 | NNW 8 | — | — | — | — | WNW 12 | — | — | — | — | — | S 18 | SW 18 | — | — | — | — |
3 | 20 | 19 | 14 | — | — | — | — | 15 | — | — | — | — | — | 6 | 12 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 3 | NNW 4 | NNW 5 | NNW 6 | NNW 5 | NNW 5 | NNW 6 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | — | — | — | — | — | — |
7 | 18 | 49 | 47 | 49 | 39 | 43 | 46 | 51 | 95 | 106 | 168 | 163 | 223 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 37 | 132 | 126 | 399 | 126 | 34 | 37 | 34 | 34 | 223 | 37 | 126 | 473 | 146 | 132 | 645 | 222 | 138 | 583 | 132 |
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.











