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Surf Forecasts:
Coxos surf forecast from 1 Sep 2026:
- Best quality surf: Sunday 6 Sep, 4AM (local time) - 3ft (0.9m), 9s period, NW swell with glassy winds.
- Most powerful swell: Tuesday 1 Sep, 1PM (local time) - 5.5ft (1.7m), 9s period, NNW swell with 486 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 7AM (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 7AM. 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 glassy as the swell arrives.
The most powerful waves expected at Coxos in the next 16 days are 1.7m 9s and forecast to arrive on Tuesday (Sep 01) at 1PM. 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 15s period and expected on Tuesday (Sep 01) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 5th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 4AM (Sun 6th Sep) | 3ft (0.9m) 9s |
| Most Powerful | 1PM (Tue 1st Sep) | 5.5ft (1.7m) 9s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what we’ve got on the horizon for this spot. It’s going to be a long wait, so grab a coffee.
Honestly, the first week and a half is pretty grim. We’re looking at a string of days with messy, cross-onshore winds and weak, short-period swell. From now through the 10th of September, the wind is just relentless, coming from the north and north-northwest, and it’s spoiling the wave face. The swell is small and weak, barely pushing past 3 ft most of that time, and the combined energy is just a measly (83 to 361), which is weak at best. The water temp at 69°F is basically bang on average for this time of year, so nothing weird going on there.
Things finally start to look more interesting around the 11th of September. We get a bump in swell, with heights climbing to 8 ft from the NNW, and the energy jumps up. On the morning of the 12th, that energy peaks at (1063) with an 8 ft NW swell and a light breeze. The wind runs offshore that afternoon, which is the first real clean window we’ve seen. That morning on the 12th is the standout here at Coxos. It’s still a bit chunky at 8 ft, so this is for the advanced crew only. The direction is a solid NNW, which lines up perfectly with what this reef wants, and with a period of 9 seconds, it’s got some push. Keep in mind that this is a fairly consistent spot, and it can get crowded. The energy is strong at (1063), so there will be some proper power in the water.
After that, on the 13th, it drops back down fast. The swell fades, the cross-onshore wind returns, and we’re back to small, poor surf through the 16th of September. The 14th and 15th bring in a 12-second period, but it’s only 2-3 ft, so it's not doing much. That clean window on the 12th is the only real play in this whole 16-day stretch.
Make the most of that morning on the 12th. After that, it’s back to waiting.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 17°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri morning. Warm (max 33°C on Fri afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 9 | NNW 9 | NNW 9 | NNW 8 | NNW 7 | NNW 6 | NNW 7 | NNW 6 | WNW 9 | WNW 8 | NW 10 | WNW 9 | WNW 9 | NW 9 | WNW 9 | NNW 12 | NNW 12 | NNW 11 | WNW 10 | NNW 10 | NW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 263 | 440 | 449 | 215 | 163 | 82 | 105 | 75 | 65 | 58 | 37 | 103 | 103 | 155 | 101 | 255 | 280 | 200 | 135 | 348 | 313 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:02PM2.80m | 6:25AM2.66m | 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 | ||||||||
Low Tide | 11:48AM0.28m | 00:12AM0.31m | 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 | ||||||||
 |  |  | | | | | |  |  | | | | | | | | | | | | |
 | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — |
 | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 18 | 21 | 21 | 19 | 26 | 27 | 24 | 30 | 33 | 31 | 32 | 33 | 28 | 24 | 23 | 20 | 21 | 20 | 19 |
Feels °C | 15 | 16 | 15 | 20 | 19 | 18 | 25 | 25 | 21 | 26 | 28 | 31 | 29 | 31 | 28 | 24 | 22 | 18 | 18 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | NW 9 | SSW 15 | SSW 14 | NW 8 | NW 8 | NW 7 | NNW 7 | WNW 8 | NNW 6 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | NW 9 | WNW 9 | NW 9 | NNW 12 | NNW 11 | WNW 10 | NW 12 | NW 10 |
| kJ | 263 | 22 | 21 | 66 | 32 | 34 | 105 | 47 | 39 | 58 | 37 | 103 | 103 | 155 | 101 | 145 | 280 | 200 | 135 | 167 | 313 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | — | — | SSW 15 | SSW 16 | NNW 8 | NW 9 | SSW 14 | WNW 9 | NNW 6 | NW 10 | N 5 | NNW 5 | N 11 | NNW 5 | NNW 12 | S 12 | WNW 9 | NNW 10 | WNW 9 | — |
| kJ | 23 | — | — | 23 | 24 | 11 | 21 | 20 | 65 | 25 | 35 | 15 | 15 | 2 | 8 | 255 | 3 | 61 | 86 | 96 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 15 | SSW 14 | — | SSW 14 | SW 13 | SW 13 | SW 13 | N 11 | SW 12 | NNW 14 | SW 12 | S 12 | WNW 12 | WNW 8 | S 11 | — |
| kJ | — | — | — | — | — | 22 | 20 | — | 19 | 7 | 7 | 7 | 2 | 6 | 82 | 5 | 3 | 15 | 26 | 2 | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 9 | NNW 9 | NNW 8 | NNW 7 | NNW 6 | — | NNW 6 | — | — | NNW 4 | — | — | — | — | NNW 5 | NW 9 | NNW 5 | NNW 6 | NNW 10 | NNW 6 |
| kJ | 98 | 440 | 449 | 215 | 163 | 82 | — | 75 | — | — | 17 | — | — | — | — | 7 | 203 | 53 | 74 | 348 | 83 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 547 | 126 | 34 | 223 | 34 | 34 | 34 | 34 | 32 | 34 | 34 | 1 | 34 | 0 | 32 | 223 | 34 | 238 | 559 | 132 |
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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