Surf Forecasts:
Coxos surf forecast from 17 Jul 2026:
- Most powerful swell: Monday 20 Jul, 7PM (local time) - 3.5ft (1.1m), 7s period, NNW swell with 124 kJ wave energy.
Best Forecast Surf Conditions for Coxos this week:
The most powerful waves expected at Coxos in the next 16 days are 1.1m 7s and forecast to arrive on Monday (Jul 20) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 5s period and expected on Saturday (Jul 18) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Mon 20th Jul) | 3.5ft (1.1m) 7s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on the cards for Coxos. To be straight with you, it’s a tough stretch ahead. For the first week and a half, we’re really struggling to get any kind of decent surf. The winds are blowing straight onshore from the NNW, which is the worst possible direction for this reef. The swell is tiny and choppy, and the water temp is sitting at about 67°, which is about average for this time of year.
The first real glimmer of hope doesn’t show up until Wednesday the 29th of July. That morning, we see a proper pulse of energy arrive at 7ft from the NNW, with a long period of 12 seconds. The combined energy is a massive 1544, which is seriously strong. It’s a proper groundswell. The problem is the wind is cross-onshore from the NNW, so it’s going to be a bit lumpy, but the power is there. The forecast rates it as marginal, mostly because of that wind. This is the most promising window, but it’s a far cry from clean perfection.
The end of the month and into August sees the swell size ramp up, but it stays messy. On Friday the 31st of July, we’ve got 12ft from the NNW on the morning, with a period of 9 seconds and a combined energy of 1981. The wind is onshore, so it’s going to be a big, raw, powerful beast. That’s expert territory only – over 8ft it’s not for the faint-hearted. The same goes for the 1st of August, with 10ft swell but a fresh cross-onshore wind making it lumpy and challenging.
Honestly, for most of this outlook, the surf is poor and the conditions are blown-out. The setup at Coxos, being a reef, might hold some shape, but with the wind in the wrong direction, it’s going to be a test of survival rather than a fun session. The only real standout in this whole 16-day window is the morning of the 29th of July, with its long-period groundswell and significant power, but don’t expect perfection. It’s a long-range call, so keep an eye on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Fri morning, min 18°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 8 | WNW 8 | NNW 4 | WNW 8 | NW 4 | NNW 5 | NNW 6 | NNW 6 | NW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 9 | N 8 | WNW 10 | NW 6 | WNW 9 | WNW 9 | NNW 6 | N 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 22 | 13 | 13 | 13 | 19 | 28 | 49 | 56 | 44 | 113 | 117 | 108 | 110 | 101 | 43 | 32 | 31 | 27 | 16 | 23 | 27 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | cross-on |
High Tide | 5:50PM3.14m | 6:18AM2.70m | 6:35PM2.97m | 7:03AM2.57m | 7:21PM2.75m | 7:50AM2.42m | 8:09PM2.51m | 8:40AM2.28m | 9:03PM2.28m | 9:38AM2.17m | 10:07PM2.11m | 10:46AM2.12m | 11:21PM2.03m | ||||||||
Low Tide | 11:30AM0.16m | 00:09AM0.08m | 12:15PM0.28m | 00:53AM0.25m | 1:00PM0.44m | 1:37AM0.45m | 1:48PM0.63m | 2:24AM0.65m | 2:42PM0.81m | 3:16AM0.83m | 3:48PM0.94m | 4:19AM0.96m | 5:05PM1.00m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — |
 | — | — | 9:00 | — | — | 9:00 | — | — | 9:00 | — | 8:59 | — | — | 8:59 | — | — | 8:58 | — | — | 8:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 20 | 20 | 19 | 21 | 21 | 20 | 21 | 21 | 19 | 21 | 21 | 19 | 20 | 20 | 19 | 20 | 21 | 18 |
Feels °C | 20 | 19 | 18 | 19 | 18 | 18 | 19 | 20 | 19 | 19 | 19 | 18 | 21 | 20 | 19 | 20 | 19 | 20 | 19 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 8 | WNW 9 | NW 8 | WNW 8 | W 8 | NNW 7 | NNW 8 | NNW 9 | N 8 | W 5 | WNW 10 | NNW 6 | NNW 6 | WNW 9 | N 7 |
| kJ | 22 | 13 | 13 | 13 | 13 | 6 | 14 | 16 | 14 | 13 | 10 | 108 | 110 | 101 | 43 | 14 | 31 | 17 | 14 | 16 | 27 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 5 | SW 5 | SW 19 | NW 8 | W 9 | NW 8 | WNW 8 | NW 8 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | WNW 5 | N 7 | N 9 | WNW 5 | WNW 9 | W 5 | WNW 4 |
| kJ | 1 | 1 | 1 | 1 | 15 | 3 | 7 | 9 | 14 | 11 | 13 | 24 | 42 | 41 | 16 | 24 | 7 | 9 | 16 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | NW 5 | — | S 14 | — | — | W 10 | NW 10 | NNW 9 | W 13 | NW 12 | SW 16 | W 7 | W 7 | W 7 | WNW 10 | WNW 10 | SW 13 | WNW 9 | WNW 5 | N 8 | WNW 9 |
| kJ | 1 | — | 4 | — | — | 2 | 4 | 8 | 3 | 6 | 10 | 9 | 4 | 4 | 33 | 32 | 7 | 27 | 9 | 1 | 15 |
Wind waves Height (m) Direction Period (s) | WNW 4 | NW 3 | NNW 4 | NNW 4 | NW 4 | NNW 5 | NNW 6 | NNW 6 | NW 6 | NNW 7 | NNW 7 | — | — | WNW 5 | — | — | NW 6 | — | WNW 5 | NNW 6 | N 3 |
| kJ | 8 | 6 | 13 | 12 | 19 | 28 | 49 | 56 | 44 | 113 | 117 | — | — | 15 | — | — | 31 | — | 11 | 23 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 938 | 1378 | 908 | 541 | 985 | 195 | 268 | 389 | 170 | 156 | 403 | 156 | 84 | 485 | 34 | 34 | 467 | 34 | 37 | 467 | 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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