Surf Forecasts:
Coxos surf forecast from 10 Aug 2026:
- Best quality surf: Sunday 16 Aug, 4AM (local time) - 6ft (1.8m), 8s period, NW swell with glassy winds.
- Most powerful swell: Sunday 16 Aug, 7AM (local time) - 6ft (1.9m), 8s period, NNW swell with 469 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 4AM (local time) - 6ft (1.8m), 8s period with NW 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 Sunday (Aug 16) at 4AM. The primary swell is predicted to be 1.8m and 8s 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 1.9m 8s and forecast to arrive on Sunday (Aug 16) at 7AM. Winds are predicted to be glassy 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 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 16th Aug) | 6ft (1.8m) 8s |
| Best Surf | 4AM (Sun 16th Aug) | 6ft (1.8m) 8s |
| Most Powerful | 7AM (Sun 16th Aug) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, let’s talk in feet and miles per hour.
Honestly, it’s a tough outlook for Coxos. For the first week and a half, it’s pretty grim. The wind is hammering in from the NNW, which is cross-on or onshore for this reef, and that’s making a mess of things. Choppy, lumpy, poor conditions day after day. There’s a big gap with nothing worth chasing until the 16th of August.
Then, on Sunday the 16th, we get a break. The morning shows glassy conditions with a light SSW breeze, barely a ripple. Swell is running at about 6ft from the NNW, with a combined swell energy of (455). That’s strong energy. The period is short at 8 seconds, but with the glassy surface, it’ll be clean and fun for the experienced surfers out at this exposed reef. The water temp is about normal for the time of year.
That Sunday morning is the real highlight. The only true standout in this whole 16-day window. Crowds are pretty likely here – it’s often packed when it cleans up like this.
Monday the 17th morning is another decent call: 5-6ft NNW groundswell, with a light cross-offshore S wind at about 6 mph. Clean conditions with a combined energy of (339). You’ll get some good ones.
After that, the window slams shut. Tuesday the 18th morning still has some clean 4-5ft waves, but the afternoon cross-shore wind kills it. From Wednesday onward, it’s back to the same old story – poor surf and ugly wind.
So, bottom line: aim for Sunday the 16th morning and Monday the 17th morning. Otherwise, it’s a dry spell.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon morning, min 19°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Thu morning, min 19°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | NW 8 | NW 8 | NW 7 | NW 12 | NNW 12 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 60 | 82 | 23 | 47 | 53 | 77 | 120 | 154 | 150 | 157 | 251 | 175 | 141 | 153 | 175 | 251 | 444 | 273 | 455 | 423 | 302 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-off |
High Tide | 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 | 5:45AM2.80m | 6:01PM2.95m | ||||||||
Low Tide | 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 | 11:44AM0.20m | 00:12AM0.24m | |||||||
 | |  | | | | | | | | | | | |  |  | |  | | |  | |
 | 6:45 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Temp °C | 22 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 20 | 22 | 22 | 19 | 22 | 22 | 20 | 22 | 22 | 20 | 24 | 23 | 23 |
Feels °C | 22 | 21 | 19 | 21 | 21 | 19 | 21 | 21 | 19 | 21 | 21 | 17 | 21 | 21 | 17 | 21 | 21 | 19 | 25 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | NW 8 | 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 | WNW 8 | NNW 8 | NW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 60 | 82 | 23 | 38 | 53 | 77 | 120 | 154 | 150 | 157 | 251 | 175 | 130 | 101 | 78 | 251 | 30 | 273 | 455 | 423 | 302 |
Swell 2 Height (m) Direction Period (s) | WNW 7 | NW 11 | W 6 | NW 9 | WNW 11 | NNW 10 | NNW 10 | NNW 9 | NNW 10 | NW 12 | NNW 9 | N 9 | — | NW 11 | NW 10 | NW 9 | WNW 8 | WNW 8 | SW 16 | SW 16 | SW 15 |
| kJ | 35 | 5 | 11 | 21 | 23 | 58 | 51 | 47 | 33 | 37 | 16 | 1 | — | 20 | 36 | 202 | 14 | 153 | 10 | 11 | 9 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | NNW 10 | WNW 10 | NNW 8 | — | — | — | — | NNW 10 | — | — | — | — | — | WNW 8 | SW 18 | S 18 | — | — | — |
| kJ | 3 | 3 | 20 | 19 | 7 | — | — | — | — | 18 | — | — | — | — | — | 14 | 12 | 6 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | — | NNW 8 | — | — | — | — |
| kJ | — | 4 | 17 | 47 | 51 | 64 | 45 | 52 | 44 | 53 | 60 | 87 | 141 | 153 | 175 | — | 444 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 37 | 126 | 126 | 399 | 34 | 34 | 37 | 34 | 34 | 317 | 37 | 34 | 222 | 126 | 34 | 473 | 34 | 0 | 41 | 0 |
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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