
Surf Forecasts:
Coxos surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 10AM (local time) - 4.5ft (1.4m), 8s period, NNW swell with 275 kJ wave energy.
Best Forecast Surf Conditions for Coxos this week:
The most powerful waves expected at Coxos in the next 16 days are 1.4m 8s and forecast to arrive on Thursday (Aug 06) 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 0.1m 12s period and expected on Thursday (Aug 06) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Thu 6th Aug) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gonna be straight with you – this outlook for Coxos is a tough one to write. We’ve got a solid 16-day window, but the first two weeks are a real battle against the wind. This is a reef break that needs the right conditions, and it’s not getting them for a while.
The core problem is persistent cross-onshore winds. From August 5th right through to the 18th, the wind is coming from the N or NNW, mostly at 12 to 19 mph, sometimes stronger. That’s a cross-on wind here, and it’s trashing the surface. Even when there’s some size in the water, it’s going to be choppy, lumpy, and messy. The water temp is sitting right around 68°F, which is pretty normal for this time of year.
The first proper event to look at is August 14th. The swell starts to build up and by Friday the 14th morning, we’re looking at a 6ft swell from the NNW with moderate wave energy (715). That combo swell energy is getting into moderate territory. The problem? The wind is a fresh 19 mph cross-on, so it’s going to be a lumpy, blown-out mess. The size increases into the afternoon, with a 8ft swell (888 energy) and then Saturday the 15th hits 8ft (980 energy). That’s expert-level size, but with the same dirty cross-on wind. It’s not surfable for the average punter.
Now, here’s where it gets interesting. The one standout window is the morning of Wednesday, August 19th. For a brief moment, the wind drops to zero – dead calm, glassy conditions. We’ve got a 4ft swell from the NNW, which is a decent size, but the period is a short 7 seconds. That short period means it’s not going to have the power of a groundswell, but the glassy conditions are a massive positive. It’s the only time in the whole run where the conditions are described as “expect good surf conditions”. This is your best bet. The swell will be a bit weak and short-period, but on a glassy morning at Coxos, you can still get some fun ones. After that morning, the wind immediately swings back to a strong cross-on and the window closes.
The rest of the 19th and into the 20th is back to the same story – big, messy swell with strong winds. There’s a gap of several days in the middle there with no real recommendations, just wind and chop.
So, to be clear: the best, and really the only, standout is the morning of Wednesday, August 19th. Get out there early for the glass. The rest of the 16 days is a write-off unless you’re a fan of washing machines.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 18°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 9 | NNW 10 | NNW 9 | NNW 8 | NNW 8 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | W 7 | NW 11 | NNW 10 | NW 9 | NW 8 | NNW 7 | NNW 6 | NNW 12 | NNW 11 | NNW 10 |
Wave Graph | |||||||||||||||||||||
75 | 117 | 90 | 275 | 256 | 167 | 178 | 151 | 140 | 65 | 35 | 37 | 34 | 38 | 39 | 30 | 77 | 71 | 90 | 130 | 194 | |
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-on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 8:02PM2.45m | 8:38AM2.33m | 9:08PM2.30m | 9:51AM2.28m | 10:33PM2.23m | 11:16AM2.33m | 00:00AM2.29m | 12:33PM2.50m | 1:13AM2.45m | 1:37PM2.74m | 2:11AM2.63m | 2:30PM2.98m | 3:01AM2.79m | ||||||||
Low Tide | 1:43PM0.64m | 2:17AM0.64m | 2:47PM0.76m | 3:24AM0.77m | 4:09PM0.82m | 4:48AM0.82m | 5:40PM0.74m | 6:12AM0.73m | 6:58PM0.54m | 7:19AM0.55m | 7:59PM0.31m | 8:14AM0.36m | 8:50PM0.09m | ||||||||
6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:45 | — | — | 6:46 | — | — | |
— | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:42 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 21 | 21 | 19 | 22 | 22 | 19 | 22 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 19 | 21 | 22 | 19 |
Feels °C | 21 | 19 | 17 | 18 | 18 | 17 | 21 | 20 | 18 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 19 | 18 | 20 | 21 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NNW 10 | NNW 9 | W 10 | W 10 | W 10 | WNW 9 | W 9 | W 9 | NNW 8 | WNW 8 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | NNW 6 | NNW 12 | NNW 11 | WNW 11 |
63 | 117 | 90 | 49 | 49 | 46 | 28 | 42 | 40 | 65 | 22 | 37 | 34 | 24 | 39 | 24 | 22 | 71 | 90 | 130 | 68 | |
Swell 2 Height (m) Direction Period (s) | NNW 9 | W 7 | W 10 | W 7 | S 12 | SW 13 | S 13 | S 12 | S 12 | WNW 9 | S 12 | N 7 | NW 11 | NNW 10 | NW 9 | NW 8 | NNW 10 | W 6 | NW 8 | WNW 9 | W 5 |
75 | 39 | 74 | 8 | 3 | 7 | 3 | 3 | 3 | 26 | 3 | 9 | 30 | 38 | 38 | 30 | 20 | 11 | 18 | 17 | 2 | |
Swell 3 Height (m) Direction Period (s) | WNW 10 | WNW 10 | SW 12 | S 12 | — | — | — | — | — | W 6 | — | NNW 12 | S 11 | S 11 | S 11 | W 11 | NW 11 | NW 13 | W 6 | W 6 | W 5 |
34 | 37 | 6 | 3 | — | — | — | — | — | 2 | — | 14 | 2 | 2 | 2 | 2 | 5 | 44 | 6 | 2 | 1 | |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | NNW 4 | NNW 8 | NNW 8 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | — | NNW 8 | NW 3 | N 4 | NNW 3 | NNW 4 | NNW 4 | NNW 7 | — | NNW 6 | NNW 6 | NNW 10 |
— | 4 | 29 | 275 | 256 | 167 | 178 | 151 | 140 | — | 35 | 2 | 6 | 7 | 12 | 16 | 77 | — | 47 | 41 | 194 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 547 | 34 | 248 | 668 | 132 | 138 | 508 | 138 | 36 | 986 | 34 | 126 | 668 | 34 | 34 | 547 | 138 | 34 | 446 | 34 |
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.











