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Surf Forecasts:
Coxos surf forecast from 7 Sep 2026:
- Best quality surf: Monday 14 Sep, 7PM (local time) - 3.5ft (1.0m), 11s period, NW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 4PM (local time) - 6.5ft (2.0m), 11s period, NNW swell with 871 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 7PM (local time) - 3.5ft (1.0m), 11s 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 Monday (Sep 14) at 7PM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.7m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Coxos in the next 16 days are 2.0m 11s and forecast to arrive on Thursday (Sep 10) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Mon 14th Sep) | 3.5ft (1.0m) 11s |
| Best Surf | 7PM (Mon 14th Sep) | 3.5ft (1.0m) 11s |
| Most Powerful | 4PM (Thu 10th Sep) | 6.5ft (2.0m) 11s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s coming for Coxos. The first week is pretty grim, to be honest. Constant cross-onshore winds and lumpy, choppy conditions ruin any real quality. There’s a gap of about 10 days before we see any real hope.
The first faint glimmer is Monday the 14th. The morning offers a light cross-onshore breeze with a 4ft swell from the NW at 11 seconds. The afternoon is a bit cleaner with a light onshore wind and a 3ft NW swell. It’s marginal, but it’s a start.
Tuesday the 15th morning is a small tease. Clean, cross-offshore wind from the S at 6 mph, and a 3ft swell from the NNW. It’s surfable, but very ordinary.
The next few days are all small waves and light winds, nothing to shout about.
The real standout is Saturday the 19th of September morning. It’s looking glassy with a 7ft swell from the NNW. The wind is a slight SE breeze at 3 mph, practically glass. The energy is solid (517). The period is a short 8 seconds, so it’ll be a bit lumpy and walled-up for a reef break, but with that clean surface, it’s the best bet by far. That’s a solid size, but manageable for experienced surfers.
The following week has some potential. The morning of Monday the 21st has a light cross-onshore breeze with a 4ft NW swell, and Tuesday the 22nd morning has a bigger 7ft NNW swell with light winds. Worth keeping an eye on, but it’s a long way out.
The bottom line: if you’re an expert, the 19th morning is your window. The rest is mostly a bust or marginal. Coxos is a reef and it’s often crowded, so expect company.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Mon afternoon, min 17°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun morning, min 18°C on Thu night). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the N by Fri night). | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 12 | WNW 11 | WNW 10 | NW 9 | NW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 11 | NNW 10 | NNW 10 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NW 15 | NW 13 | NW 12 | NW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 713 | 444 | 302 | 241 | 148 | 384 | 459 | 536 | 541 | 871 | 218 | 128 | 69 | 60 | 140 | 128 | 181 | 347 | 496 | 511 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | 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 | cross-on | cross-on |
High Tide | 1:11AM2.43m | 1:28PM2.77m | 2:02AM2.63m | 2:16PM3.00m | 2:45AM2.80m | 2:59PM3.15m | 3:25AM2.92m | 3:38PM3.21m | 4:01AM2.96m | 4:15PM3.17m | 4:36AM2.94m | 4:51PM3.04m | ||||||||
Low Tide | 6:58PM0.51m | 7:13AM0.57m | 7:52PM0.27m | 8:03AM0.35m | 8:37PM0.08m | 8:45AM0.17m | 9:16PM-0.04m | 9:25AM0.07m | 9:53PM-0.07m | 10:02AM0.03m | 10:27PM-0.02m | 10:38AM0.08m | 11:00PM0.11m | |||||||
 |  | | |  |  | | | | | | | | | | | | | | | |
 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — |
 | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 18 | 20 | 20 | 21 | 19 | 19 | 18 | 20 | 20 | 18 | 21 | 21 | 19 | 24 | 22 | 20 | 26 | 24 | 20 |
Feels °C | 19 | 16 | 18 | 19 | 22 | 14 | 14 | 13 | 17 | 16 | 13 | 18 | 18 | 17 | 23 | 20 | 19 | 24 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 11 | WNW 10 | NW 9 | NW 9 | — | N 15 | NNW 12 | NNW 11 | W 8 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 7 | NNW 7 | NNW 7 | NNW 9 | NW 12 | NW 12 |
| kJ | 713 | 444 | 302 | 241 | 148 | — | 4 | 86 | 183 | 10 | 218 | 128 | 69 | 27 | 140 | 128 | 147 | 244 | 496 | 511 |
Swell 2 Height (m) Direction Period (s) | — | NNW 9 | — | — | — | — | NW 15 | NW 10 | — | — | W 10 | W 7 | W 7 | W 7 | WNW 10 | WNW 9 | NW 15 | NW 13 | NNW 8 | NNW 7 |
| kJ | — | 15 | — | — | — | — | 8 | 26 | — | — | 2 | 4 | 4 | 4 | 55 | 47 | 181 | 347 | 142 | 74 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 9 | NW 8 | WNW 11 | SW 13 | NW 12 | NW 11 | WNW 9 | S 12 | S 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 11 | 7 | 23 | 72 | 26 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | NNW 9 | NNW 4 | NNW 4 | NNW 4 | — | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 11 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | — | — | — | — | — | — |
| kJ | 173 | 21 | 23 | 16 | — | 384 | 459 | 536 | 541 | 871 | 171 | 90 | 59 | 60 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 222 | 34 | 34 | 409 | 132 | 263 | 428 | 132 | 34 | 442 | 126 | 126 | 223 | 126 | 32 | 428 | 34 | 32 | 36 | 34 |
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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