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Surf Forecasts:
Coxos surf forecast from 2 Sep 2026:
- Best quality surf: Saturday 5 Sep, 1AM (local time) - 2.5ft (0.8m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 5ft (1.6m), 13s period, WNW swell with 799 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 1AM (local time) - 2.5ft (0.8m), 9s period with WNW 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 Saturday (Sep 05) at 1AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.5m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Coxos in the next 16 days are 1.6m 13s and forecast to arrive on Monday (Sep 07) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Saturday (Sep 05) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 5th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 1AM (Sat 5th Sep) | 2.5ft (0.8m) 9s |
| Most Powerful | 10AM (Mon 7th Sep) | 5ft (1.6m) 13s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for this stretch. We’re looking at a pretty stubborn run of conditions for the main spot. There’s some real energy out there, but the wind is going to be a thorn in our side for a long time.
Overall, the pattern is dominated by a persistent cross-onshore flow that’s going to mess up what could be some decent-sized swell. The water temp is sitting around 69°F at the start, which is right about average for the time of year, so nothing weird there.
The first real chance for a wave isn’t until Saturday, September 5th. Saturday morning, the wind is a light cross-offshore from the south, and the swell is small, around 3ft from the WNW with a period of 9 seconds. The combined energy is moderate (131). It’s surfable, but it’s only going to be small, weak waves. That’s the first window, but it’s not a standout.
The wind just doesn’t let up. We’ve got a solid patch of groundswell coming through, but it’s all cross-on or onshore. Sunday the 6th has a 4ft swell from the NNW with a 12-second period, and the energy jumps up to a strong 606, but that morning wind is onshore. It’s a tease.
The real kicker, and the only true standout worth waiting for, is Tuesday, September 15th. This is the one. Tuesday morning at Coxos, the wind goes glassy. Absolutely dead calm. The swell is 4ft from the NW with an 11-second period, and the combined energy is a solid 561 (moderate). That’s clean, smooth conditions on a reef break that’s exposed to this direction. It’s not massive, but with that glassy surface, the waves will be lined up and user-friendly for a good session. Then Tuesday afternoon, the swell jumps to 6ft from the NW with a very long 15-second period, and the energy is pumping at 1633 (strong). The wind shifts to a cross-offshore from the SSW, which will keep it clean. Just be aware that with a 15-second period, this groundswell might be a bit too straight for a beach break, but on a reef like Coxos, it’s going to be proper. This is advanced-level size, though, over 5ft, so it’s not for beginners.
There’s a gap of almost two weeks of frustrating, choppy, cross-onshore conditions before that Tuesday the 15th. The rest of the forecast is a write-off—big wind, lumpy seas, and poor surf. If you’re looking for a paddle, that Tuesday the 15th is your only clear shot.
Stay patient, and don't bother with the rest.
Rusty.
Short Range ForecastMostly dry. Warm (max 35°C on Fri night, min 19°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Sat morning, min 17°C on Mon night). Winds increasing (light winds from the NNW on Sat night, fresh winds from the N by Mon morning). | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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) | NNW 8 | NNW 6 | NNW 6 | NNW 7 | NNW 6 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NNW 12 | NW 11 | WNW 14 | WNW 13 | WNW 12 | WNW 11 | NW 9 | NNW 9 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 211 | 101 | 82 | 85 | 55 | 65 | 59 | 59 | 101 | 101 | 101 | 382 | 464 | 278 | 325 | 799 | 595 | 382 | 375 | 486 | 363 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross | cross-off | cross-off | cross | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:46PM2.61m | 7:12AM2.51m | 7:40PM2.39m | 8:13AM2.35m | 8:55PM2.19m | 9:37AM2.25m | 10:33PM2.12m | 11:12AM2.31m | 00:04AM2.23m | 12:30PM2.52m | 1:11AM2.43m | 1:28PM2.77m | 2:02AM2.63m | ||||||||
Low Tide | 12:31PM0.42m | 00:55AM0.50m | 1:22PM0.60m | 1:49AM0.71m | 2:31PM0.77m | 3:05AM0.89m | 4:07PM0.85m | 4:44AM0.93m | 5:46PM0.74m | 6:11AM0.79m | 6:58PM0.51m | 7:13AM0.57m | 7:52PM0.27m | ||||||||
 | |  | | |  |  | | | | | |  | | | | | | | | | |
 | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — |
 | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 21 | 32 | 33 | 26 | 33 | 30 | 35 | 30 | 25 | 20 | 21 | 21 | 19 | 19 | 20 | 17 | 19 | 19 | 20 |
Feels °C | 19 | 20 | 19 | 29 | 31 | 24 | 30 | 27 | 31 | 28 | 24 | 22 | 21 | 19 | 17 | 14 | 16 | 12 | 15 | 14 | 20 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | NNW 7 | NNW 6 | NNW 6 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NNW 12 | NW 11 | WNW 14 | WNW 13 | WNW 12 | WNW 11 | NW 9 | — | — |
| kJ | 51 | 40 | 28 | 85 | 55 | 27 | 59 | 59 | 101 | 101 | 101 | 382 | 464 | 278 | 325 | 799 | 595 | 382 | 375 | — | — |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 16 | NNW 8 | NW 9 | WNW 8 | WNW 9 | NNW 5 | NW 10 | SW 13 | NNW 5 | NNW 6 | WNW 9 | WNW 9 | S 12 | NNW 10 | — | — | NW 9 | — | — | — |
| kJ | 23 | 24 | 11 | 20 | 47 | 65 | 15 | 25 | 7 | 28 | 27 | 99 | 133 | 3 | 166 | — | — | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 15 | — | SSW 15 | SSW 14 | SSW 14 | SSW 14 | NW 10 | SW 13 | N 12 | N 11 | NW 11 | NNW 6 | SW 12 | W 15 | WNW 9 | — | — | — | — | — | — |
| kJ | 23 | — | 22 | 20 | 20 | 19 | 16 | 7 | 3 | 2 | 31 | 20 | 5 | 4 | 44 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 8 | NNW 6 | NNW 6 | — | — | — | — | NNW 5 | NNW 5 | — | SW 3 | — | NNW 5 | NW 9 | NNW 5 | NNW 10 | NNW 6 | NNW 6 | N 7 | NNW 9 | NNW 8 |
| kJ | 211 | 101 | 82 | — | — | — | — | 15 | 14 | — | 2 | — | 9 | 176 | 58 | 258 | 110 | 139 | 152 | 486 | 363 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 223 | 34 | 1 | 34 | 12 | 34 | 17 | 0 | 0 | 222 | 34 | 34 | 34 | 37 | 132 | 597 | 132 | 238 | 508 | 138 |
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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