Surf Forecasts:
Coxos surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 10AM (local time) - 5ft (1.5m), 8s period, NNW swell with 299 kJ wave energy.
Best Forecast Surf Conditions for Coxos this week:
The most powerful waves expected at Coxos in the next 16 days are 1.5m 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 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Thu 6th Aug) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Coxos over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s get straight into it.
We’re looking at a pretty quiet start for the Coxos reef here. The first week and a bit is a real letdown. For days, there’s nothing worth paddling out for. The winds are constantly cross-on or onshore, the swell is small and weak, and the combined wave energy barely gets above 100. It’s just choppy, messy, and frustrating. That run of poor conditions stretches right from August 4th through to the 13th. You’re better off waxing your board and waiting.
Now, things get a little more interesting from August 14th. That Friday morning brings a jump in size to 7.2ft from the NNW, with a period of 8 seconds. The energy jumps to a moderate 633. The problem is the wind swings cross-on from the west, so it’s still not clean. It’s marginal, a bit lumpy, and honestly more of a challenge than a pleasure. This is getting into the range that’s too big for beginners, but it’s not quite firing for experts either. For the next few days, the swell hangs around 6.2ft to 7.9ft, but the wind is still messing with it.
The real standout comes on Monday August 17th. That morning is the best we’ve got. You’ve got a solid 7.2ft swell from the NNW, period of 8 seconds, and the wind goes cross-off from the SSW at only 9 mph. That’s clean. The water is about average for this time of year. The combined energy is a strong 602. This is a proper window. The break is a reef, so with that size and direction, it’s going to be heavy, hollow, and definitely for advanced surfers only. Keep in mind, this spot can get crowded often, so get there early.
Tuesday August 18th morning is also worth a look. The swell is still 6.9ft from the NNW, with a slightly longer period of 9 seconds, giving it a bit more punch. The combined energy is 676. The wind is light cross-on from the west at 6 mph, so it’s not glassy, but it’s workable. It’s still marginal, but if the Monday window is too busy, this is your backup.
Overall, the first week is a write-off. The second week has a couple of promising mornings, but the standout is clearly the Monday morning the 17th. That’s the one to circle on the calendar.
Short Range ForecastMostly dry. Warm (max 21°C on Tue night, 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 Fri 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) | WNW 8 | NNW 10 | NNW 9 | NNW 8 | NNW 8 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | N 8 | W 7 | NW 11 | W 7 | W 7 | W 7 | NW 7 | NNW 12 | NNW 11 | NNW 10 | NNW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 75 | 117 | 262 | 299 | 284 | 177 | 218 | 199 | 133 | 63 | 44 | 39 | 35 | 39 | 38 | 36 | 125 | 129 | 135 | 92 | 214 |
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 | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 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 | 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 | 18 | 21 | 21 | 19 | 21 | 21 | 19 | 22 | 22 | 20 | 22 | 22 | 19 | 21 | 21 | 19 | 21 | 21 | 19 |
Feels °C | 20 | 19 | 15 | 18 | 18 | 17 | 19 | 19 | 18 | 21 | 21 | 21 | 21 | 21 | 18 | 20 | 19 | 18 | 20 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NNW 10 | W 10 | W 10 | W 10 | W 10 | WNW 9 | WNW 9 | WNW 9 | NNW 8 | N 8 | W 7 | W 7 | W 7 | W 7 | W 7 | NNW 14 | NNW 12 | NNW 11 | NNW 10 | WNW 11 |
| kJ | 69 | 117 | 74 | 49 | 49 | 46 | 28 | 28 | 26 | 63 | 44 | 39 | 35 | 34 | 38 | 36 | 19 | 129 | 135 | 92 | 24 |
Swell 2 Height (m) Direction Period (s) | NNW 9 | W 7 | SW 12 | WNW 7 | S 12 | SW 13 | S 13 | S 12 | S 12 | WNW 9 | WNW 8 | NNW 12 | NW 11 | NNW 10 | NNW 9 | NW 8 | NNW 10 | W 6 | NNW 8 | NNW 8 | WNW 9 |
| kJ | 75 | 39 | 6 | 9 | 3 | 7 | 3 | 3 | 3 | 26 | 22 | 14 | 30 | 39 | 32 | 33 | 20 | 19 | 24 | 23 | 16 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | WNW 10 | S 14 | S 12 | — | — | — | — | S 12 | W 6 | S 12 | S 11 | S 11 | S 11 | S 11 | NW 16 | W 11 | NW 9 | WNW 10 | WNW 10 | W 5 |
| kJ | 34 | 37 | 4 | 3 | — | — | — | — | 3 | 2 | 3 | 2 | 2 | 2 | 2 | 9 | 2 | 21 | 19 | 18 | 2 |
Wind waves Height (m) Direction Period (s) | NW 3 | NNW 3 | NNW 9 | NNW 8 | NNW 8 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | — | NW 3 | NNW 7 | N 4 | NNW 4 | NNW 4 | NNW 5 | NW 7 | NNW 7 | NW 6 | NNW 6 | NNW 10 |
| kJ | 2 | 6 | 262 | 299 | 284 | 177 | 218 | 199 | 133 | — | 2 | 29 | 6 | 7 | 17 | 24 | 125 | 91 | 78 | 60 | 214 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 428 | 34 | 243 | 485 | 34 | 132 | 483 | 138 | 36 | 389 | 36 | 126 | 426 | 34 | 34 | 399 | 138 | 126 | 399 | 51 |
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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