Surf Forecasts:
Coxos surf forecast from 24 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 7AM (local time) - 5ft (1.6m), 7s period, WNW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 10ft (3.0m), 11s period, WNW swell with 1,948 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 7AM (local time) - 5ft (1.6m), 7s 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 Tuesday (Aug 25) at 7AM. The primary swell is predicted to be 1.6m and 7s 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 3.0m 11s and forecast to arrive on Friday (Aug 28) 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 0.6m 6s period and expected on Monday (Aug 24) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 25th Aug) | 5ft (1.6m) 7s |
| Best Surf | 7AM (Tue 25th Aug) | 5ft (1.6m) 7s |
| Most Powerful | 10AM (Fri 28th Aug) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about what’s cooking for Coxos over the next couple of weeks.
To be real with you, we’ve got a massive, frustrating gap before any decent surf shows up. From now until early September, it’s a write-off – strong winds, cross-onshore chop, messy conditions. You’ll see a little bump in size but the wind just ruins it every time. About two weeks of that. Not worth paddling out.
Then, things start shifting. The first real standout window is around Monday, September 7th. That morning, the stars almost align. Coxos (reef break) gets a slab of WNW swell pushing 12 ft, with a super long 17-second period – proper groundswell energy. This is expert-only territory with that size, and on a reef setup, it’s gonna be a freight train. What makes it special is the glassy conditions, light offshore from the NW at only 3 mph. The water is a bit colder than normal for this time of year at 66°F. Combined energy is absolutely pumping at 7807, so expect heavy, powerful waves with long lulls between sets. This is for experienced crew only, but it’s the best on offer without question.
Later that afternoon on the 7th, the swell holds around 12 ft and drops to a 15-second period, but the wind swings WSW and kills the perfection. Still big, but messier.
Before that, on Sunday, September 6th afternoon, we get a weird spike: 4 ft but from the west with a crazy 26-second period and onshore wind from 13 mph NW. The combined energy reads 2672. It’s a weird, marginal window – could be a tide issue, not a clean option for paddling.
Honestly, if you’re in the area, your best bet is holding out for that Monday morning session. Everything before that is blown out and not worth your time.
Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Wed night. Warm (max 22°C on Mon morning, min 19°C on Wed night). Winds decreasing (strong winds from the SW on Mon morning, calm by Mon night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Thu morning. Warm (max 21°C on Thu afternoon, min 17°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | WSW 8 | WSW 8 | W 7 | WNW 7 | WNW 7 | W 6 | WSW 6 | W 7 | W 9 | W 8 | W 8 | WNW 9 | WNW 11 | NW 11 | NW 10 | NW 9 | NW 8 | NW 8 | NNW 8 | NNW 8 | NW 8 |
Wave Graph | |||||||||||||||||||||
1099 | 730 | 251 | 173 | 121 | 37 | 58 | 250 | 506 | 496 | 451 | 1027 | 1948 | 1552 | 757 | 357 | 181 | 57 | 166 | 150 | 86 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | glassy | cross | cross-on | cross | cross-on | cross | 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 | 1:28PM2.34m | 1:54AM2.25m | 2:08PM2.54m | 2:30AM2.42m | 2:43PM2.72m | 3:03AM2.57m | 3:15PM2.87m | 3:34AM2.69m | 3:46PM2.98m | 4:05AM2.78m | 4:17PM3.03m | 4:37AM2.82m | 4:50PM3.02m | ||||||||
Low Tide | 7:48PM0.74m | 7:53AM0.72m | 8:24PM0.55m | 8:28AM0.54m | 8:57PM0.38m | 9:01AM0.39m | 9:28PM0.24m | 9:32AM0.26m | 9:59PM0.14m | 10:04AM0.19m | 10:29PM0.09m | 10:37AM0.16m | 11:01PM0.10m | ||||||||
6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | |
— | 8:21 | — | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | |
mm | 2 | — | — | — | — | — | 3 | — | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 20 | 20 | 18 | 20 | 20 | 18 | 21 | 22 | 19 |
Feels °C | 19 | 20 | 21 | 21 | 21 | 21 | 19 | 19 | 19 | 16 | 17 | 17 | 18 | 17 | 16 | 16 | 16 | 16 | 19 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | N 8 | NNW 8 | W 7 | WNW 7 | WNW 7 | W 6 | NNW 6 | NNW 6 | W 9 | SW 11 | NW 8 | WNW 9 | WNW 11 | NW 11 | NW 10 | NW 9 | NW 8 | NW 8 | NNW 8 | NW 12 | NW 8 |
5 | 6 | 251 | 173 | 121 | 37 | 16 | 7 | 506 | 5 | 72 | 1027 | 1948 | 1552 | 757 | 357 | 181 | 57 | 166 | 6 | 86 | |
Swell 2 Height (m) Direction Period (s) | S 13 | SW 13 | SSW 6 | SW 12 | SW 12 | NNW 6 | NW 10 | SW 11 | SW 11 | — | S 11 | S 11 | — | — | — | S 10 | S 10 | N 8 | W 13 | S 10 | NW 10 |
3 | 6 | 30 | 6 | 6 | 26 | 4 | 5 | 5 | — | 2 | 2 | — | — | — | 2 | 2 | 50 | 3 | 2 | 28 | |
Swell 3 Height (m) Direction Period (s) | — | — | N 8 | — | W 10 | NW 11 | W 9 | SW 11 | — | — | — | — | — | — | — | — | — | S 11 | S 10 | — | S 10 |
— | — | 5 | — | 2 | 5 | 2 | 5 | — | — | — | — | — | — | — | — | — | 2 | 2 | — | 2 | |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 8 | — | — | — | — | WSW 6 | W 7 | — | W 8 | W 8 | — | — | — | — | — | NNW 5 | NNW 5 | N 8 | NNW 8 | NNW 4 |
1099 | 730 | — | — | — | — | 58 | 250 | — | 496 | 451 | — | — | — | — | — | 29 | 28 | 4 | 150 | 20 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 399 | 399 | 34 | 0 | 41 | 120 | 483 | 726 | 41 | 414 | 223 | 144 | 34 | 273 | 34 | 34 | 403 | 99 | 34 | 552 | 146 |
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.











