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Surf Forecasts:
Coxos surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 7AM (local time) - 6ft (1.9m), 12s period, WNW swell with offshore winds.
- Most powerful swell: Sunday 23 Aug, 7AM (local time) - 6ft (1.9m), 12s period, WNW swell with 934 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 1AM (local time) - 3ft (0.9m), 14s 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 Sunday (Aug 23) at 1AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.9m and 9s. 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 1.9m 12s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Monday (Aug 24) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 23rd Aug) | 3ft (0.9m) 14s |
| Best Surf | 7AM (Sun 23rd Aug) | 6ft (1.9m) 12s |
| Most Powerful | 7AM (Sun 23rd Aug) | 6ft (1.9m) 12s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, Rusty here again, switching it up for my imperial pals.
Looking at Coxos over the next two weeks, it’s a rough patch. The wind is going to be a real headache most of the time, leaving the water chopped up even when there is some push.
It kicks off on Friday the 21st of August with a 4ft groundswell from the NNW, but a strong cross-onshore breeze is making it lumpy and poor. Combined energy is moderate at 551. That afternoon the swell jumps to 7ft, but the wind straight onshore does it no favors.
Saturday the 22nd has the swell dropping to 5ft, with a light NW onshore wind. It’s clean, but that onshore wind will mess with the shape. Then we get to Sunday the 23rd of August—the crystal of the window. A 6ft WNW groundswell arrives with a light offshore from the SSE in the morning. The water is clean, energy is strong (862). This is the one to aim for. The spot works best on a NW groundswell, and you have that.
Monday the 24th is stormy and windy, and the surf gets small and messy. The following week is filled with small, wind-affected slop. The next decent look is Wednesday the 2nd of September: an offshore breeze in the morning with a chest-high 3ft swell—nothing huge, but clean again.
Water temps are normal for the season. The standout is Sunday the 23rd. After that, there’s a long gap until the first days of September, and even then the energy is weak (159) and the waves are poor. A lot of the time, there’s just nothing worth driving for. I’d wait for a change in the wind forecast.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 18°C on Thu night). Winds decreasing (fresh winds from the N on Thu night, light winds from the WSW by Sat night). | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Sun night. Warm (max 23°C on Mon morning, min 19°C on Tue night). Winds decreasing (strong winds from the S on Mon morning, light winds from the SW by Mon night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 11 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | WNW 14 | WNW 11 | W 10 | W 9 | WSW 8 | NNW 8 | WSW 7 | W 7 | W 6 | W 6 | W 7 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | NW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 286 | 794 | 537 | 446 | 287 | 312 | 792 | 745 | 318 | 336 | 11 | 310 | 107 | 92 | 73 | 111 | 275 | 290 | 477 | 553 | 828 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on | on | on |
High Tide | 9:50AM2.03m | 10:42PM1.88m | 11:22AM2.03m | 00:11AM1.94m | 12:36PM2.16m | 1:11AM2.08m | 1:28PM2.34m | 1:54AM2.25m | 2:08PM2.54m | 2:30AM2.42m | 2:43PM2.72m | 3:03AM2.57m | 3:15PM2.87m | 3:34AM2.69m | |||||||
Low Tide | 4:18PM1.11m | 4:48AM1.16m | 5:56PM1.07m | 6:14AM1.07m | 7:03PM0.92m | 7:12AM0.91m | 7:48PM0.74m | 7:53AM0.72m | 8:24PM0.55m | 8:28AM0.54m | 8:57PM0.38m | 9:01AM0.39m | 9:28PM0.24m | ||||||||
 | |  | | | |  |  |  |  |  | | | |  | | | | | | | |
 | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | — | 8:24 | — | — | 8:22 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — |
mm | — | — | — | — | — | — | — | — | 13 | 4 | 1 | — | — | — | 1 | — | — | 2 | — | — | — |
Temp °C | 19 | 20 | 18 | 20 | 20 | 19 | 23 | 23 | 21 | 23 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 21 | 19 |
Feels °C | 15 | 16 | 15 | 19 | 18 | 20 | 20 | 20 | 21 | 17 | 17 | 21 | 21 | 21 | 21 | 19 | 19 | 18 | 17 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | NNW 11 | SSW 15 | WNW 9 | NNW 10 | NNW 9 | NNW 9 | WNW 11 | W 10 | W 9 | WSW 8 | NNW 8 | WSW 7 | W 7 | N 6 | W 6 | W 7 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | NW 10 |
| kJ | 286 | 21 | 42 | 446 | 287 | 140 | 792 | 745 | 318 | 336 | 11 | 310 | 107 | 1 | 73 | 111 | 275 | 290 | 477 | 553 | 828 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | W 11 | NNW 12 | W 9 | W 9 | WNW 14 | NNW 8 | N 8 | NNW 8 | NNW 8 | SW 13 | NNW 7 | SSW 6 | SW 12 | W 10 | NW 9 | NW 13 | NNW 12 | NNW 11 | SW 11 | SW 11 |
| kJ | 22 | 2 | 29 | 38 | 39 | 312 | 70 | 48 | 19 | 11 | 6 | 11 | 26 | 6 | 2 | 36 | 7 | 14 | 24 | 5 | 4 |
Swell 3 Height (m) Direction Period (s) | SSW 15 | — | SSW 14 | SSW 14 | SSW 14 | WNW 9 | SSW 13 | SSW 13 | SW 13 | SW 13 | — | SW 12 | N 7 | W 10 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | — | — |
| kJ | 21 | — | 18 | 20 | 20 | 25 | 18 | 17 | 7 | 7 | — | 6 | 4 | 2 | 6 | 5 | 5 | 5 | 5 | — | — |
Wind waves Height (m) Direction Period (s) | NNW 7 | NNW 10 | NNW 10 | — | — | — | SSE 3 | — | SSW 6 | S 5 | SW 8 | — | — | W 6 | — | — | — | — | — | — | — |
| kJ | 243 | 794 | 537 | — | — | — | 3 | — | 111 | 78 | 750 | — | — | 92 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 399 | 34 | 34 | 41 | 0 | 31 | 399 | 17 | 226 | 414 | 144 | 0 | 41 | 144 | 41 | 223 | 37 | 37 | 225 | 36 |
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.
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