
Surf Forecasts:
Coxos surf forecast from 4 Aug 2026:
- Most powerful swell: Friday 7 Aug, 7AM (local time) - 6ft (1.8m), 8s period, NNW swell with 368 kJ wave energy.
Best Forecast Surf Conditions for Coxos this week:
The most powerful waves expected at Coxos in the next 16 days are 1.8m 8s and forecast to arrive on Friday (Aug 07) at 7AM. 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 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Fri 7th Aug) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s be straight with you: looking at the 16-day window, there isn’t a single standout surging gem here. The entire run is plagued by poor surf conditions. The first recommendation doesn’t even show up until August 4th at Coxos, and it’s a meager start.
Tuesday morning, August 4th, we have a small WNW swell of 3ft at 9 seconds, but the wind is cross-on from the WNW at just 3 mph. Combined energy is 135, so weak. It’s labeled marginal, not good. Things go downhill fast: Tuesday afternoon the wind picks up, and from Wednesday onward it’s a solid run of poor conditions with fresh breezes and choppy, lumpy seas. The swell tries to nudge up but gets hammered by cross-onshore winds from the NNW, 12-22 mph. Swell size hovers between 2ft and 6ft with short periods of 7-8 seconds, so no real push or shape. Combined energy stays in the 100-400 range – unremarkable.
There’s a long gap of no recommendations at all from August 5th morning all the way through August 18th morning. That is a massive blank stretch of 13 days with nothing worth paddling for. The forecast is poor, and every single call is marked as zero quality.
Finally, on Tuesday morning August 18th, we see a marginal possibility: a NNW swell of 6ft at 9 seconds, cross-on wind at 12 mph, energy at 628 (moderate). It’s only a tick above terrible, and still not clean. The water temperature anomaly is unremarkable – about average for this time of year at Coxos.
Then by Wednesday August 19th morning, we get an 8ft NNW swell with 9 seconds and 1185 energy – that’s strong. But again, cross-on wind kills it, and it’s a poor grade.
So here’s the cold water truth: there are no good surf options in this 16-day window. If you’re desperate, the most promising window is the morning of August 18th at Coxos (reef, advanced, fairly consistent, NNW is the optimum direction), but even then, the wind will have it choppy. For a reef break like this, longer period would be a bonus for shape, but 9 seconds is average. Crowds are likely to be around often, but with this outlook, maybe not.
Given the constant cross-onshore winds and choppy conditions, particularly with beach and reef setups, the windswell pattern here looks more interesting for kite surfing than paddle surfing.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue morning, min 18°C on Wed night). Winds increasing (light winds from the WNW on Tue morning, fresh winds from the NNW by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Fri morning, min 18°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NNW 10 | NNW 9 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 6 | NNW 8 | NNW 7 | W 8 | WNW 7 | W 7 | W 7 | NNW 5 | NNW 6 | NNW 13 |
Wave Graph | |||||||||||||||||||||
129 | 118 | 90 | 75 | 117 | 301 | 281 | 273 | 281 | 365 | 276 | 127 | 94 | 57 | 33 | 48 | 42 | 37 | 24 | 58 | 140 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:11PM2.61m | 7:40AM2.43m | 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 | ||||||||
Low Tide | 12:54PM0.52m | 1:25AM0.50m | 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 | ||||||||
6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:45 | — | — | |
— | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:42 | — | — | 8:39 | — | — | 8:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 21 | 21 | 19 | 21 | 21 | 19 | 21 | 21 | 19 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 19 |
Feels °C | 23 | 22 | 21 | 19 | 18 | 16 | 17 | 17 | 16 | 19 | 18 | 18 | 20 | 20 | 21 | 21 | 19 | 19 | 18 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NNW 10 | W 10 | W 10 | W 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NNW 8 | NNW 7 | NNW 7 | WNW 7 | W 7 | W 7 | W 7 | W 7 | NNW 13 |
129 | 118 | 90 | 69 | 117 | 100 | 49 | 48 | 29 | 28 | 28 | 26 | 94 | 57 | 30 | 48 | 33 | 37 | 24 | 23 | 140 | |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 11 | NNW 11 | NNW 9 | W 7 | SW 12 | WNW 6 | S 12 | SW 13 | S 13 | S 12 | S 12 | WNW 9 | WNW 9 | W 8 | NW 11 | NNW 10 | NNW 10 | NW 9 | NNW 14 | W 6 |
6 | 13 | 64 | 75 | 27 | 6 | 8 | 3 | 7 | 3 | 3 | 3 | 26 | 25 | 33 | 31 | 42 | 37 | 20 | 21 | 30 | |
Swell 3 Height (m) Direction Period (s) | S 13 | N 8 | SW 12 | WNW 10 | WNW 10 | — | S 12 | — | — | — | — | S 12 | S 12 | N 11 | NW 12 | N 7 | S 11 | S 11 | NW 11 | NNW 10 | NW 7 |
3 | 1 | 6 | 34 | 37 | — | 3 | — | — | — | — | 3 | 3 | 2 | 6 | 8 | 2 | 2 | 5 | 10 | 13 | |
Wind waves Height (m) Direction Period (s) | — | — | NW 3 | NNW 3 | NNW 4 | NNW 9 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 6 | — | NW 3 | — | N 4 | NNW 3 | NNW 4 | NNW 5 | NNW 6 | NNW 5 |
— | — | 4 | 3 | 11 | 301 | 281 | 273 | 281 | 365 | 276 | 127 | — | 2 | — | 3 | 7 | 12 | 24 | 58 | 33 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 223 | 36 | 34 | 552 | 263 | 238 | 547 | 132 | 138 | 985 | 138 | 36 | 551 | 34 | 36 | 1603 | 146 | 230 | 547 | 138 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











