Surf Forecasts:
Ribeira D'ilhas surf forecast from 17 Jul 2026:
- Most powerful swell: Monday 20 Jul, 7PM (local time) - 3.5ft (1.1m), 7s period, NNW swell with 124 kJ wave energy.
Best Forecast Surf Conditions for Ribeira D'ilhas this week:
The most powerful waves expected at Ribeira D'ilhas in the next 16 days are 1.1m 7s and forecast to arrive on Monday (Jul 20) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 11s period and expected on Friday (Jul 24) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Mon 20th Jul) | 3.5ft (1.1m) 7s |
Table - best surf conditions forecast for Ribeira D'ilhas over the next 16 days.
The Lowdown
Alright, let’s get into it. It’s your boy Rusty, and I’ve been staring at the charts for Ribeira D'ilhas. I gotta be straight with you – the first week and a half is a write-off. We’re talking day after day of onshore wind and tiny, weak waves. It’s a real bummer, but that’s the hand we’re dealt.
The good news is, things start to look interesting right at the very end of the month. The real standout window is the morning of Friday, the 31st of July. The swell is pumping in from the NNW at a solid 12ft with a period of 9 seconds. That’s a lot of water moving, and the combined energy is massive (1981). The wind is light and offshore from the NNW, which is a major positive. This would be a clean, powerful wave, but I gotta flag it: at that size, over 8ft, this is strictly for the experts. The paddle out will be a mission, and it’s going to be a heavy drop. The water temp is sitting at a comfortable 68°F, which is pretty much bang on average for this time of year.
The afternoon of the same day is also a standout, with a 10ft swell from the NNW and still favorable offshore winds. It’s slightly smaller, but still a beast. The week before that, from the 20th to the 28th, we get some moderate energy, but it’s all blown out by cross-onshore winds, so it’ll be lumpy and messy. Not worth paddling out for.
So, to sum it up: you’ve got a long, flat, and choppy wait. The one and only real shot is that Friday morning session for the big-wave crew. Don’t even bother before that.
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Fri morning, min 18°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 | WNW 8 | NNW 4 | WNW 8 | NW 4 | NNW 5 | NNW 6 | NNW 6 | NW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 9 | N 8 | WNW 10 | NW 6 | WNW 9 | WNW 9 | NNW 6 | N 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 22 | 13 | 13 | 13 | 19 | 28 | 49 | 56 | 44 | 113 | 117 | 108 | 110 | 101 | 43 | 32 | 31 | 27 | 16 | 23 | 27 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | cross-on |
High Tide | 5:50PM3.14m | 6:18AM2.70m | 6:35PM2.97m | 7:03AM2.57m | 7:21PM2.75m | 7:50AM2.42m | 8:09PM2.51m | 8:40AM2.28m | 9:03PM2.28m | 9:38AM2.17m | 10:07PM2.11m | 10:46AM2.12m | 11:21PM2.03m | ||||||||
Low Tide | 11:30AM0.16m | 00:09AM0.08m | 12:15PM0.28m | 00:53AM0.25m | 1:00PM0.44m | 1:37AM0.45m | 1:48PM0.63m | 2:24AM0.65m | 2:42PM0.81m | 3:16AM0.83m | 3:48PM0.94m | 4:19AM0.96m | 5:05PM1.00m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — |
 | — | — | 9:00 | — | — | 9:00 | — | — | 9:00 | — | 8:59 | — | — | 8:59 | — | — | 8:58 | — | — | 8:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 20 | 21 | 19 | 21 | 21 | 20 | 21 | 21 | 19 | 21 | 21 | 19 | 20 | 20 | 19 | 20 | 21 | 18 |
Feels °C | 20 | 19 | 18 | 19 | 20 | 18 | 19 | 20 | 19 | 19 | 19 | 18 | 21 | 20 | 19 | 20 | 19 | 20 | 19 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 8 | WNW 9 | NW 8 | WNW 8 | W 8 | NNW 7 | NNW 8 | NNW 9 | N 8 | W 5 | WNW 10 | NNW 6 | NNW 6 | WNW 9 | N 7 |
| kJ | 22 | 13 | 13 | 13 | 13 | 6 | 14 | 16 | 14 | 13 | 10 | 108 | 110 | 101 | 43 | 14 | 31 | 17 | 14 | 16 | 27 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 5 | SW 5 | SW 19 | NW 8 | W 9 | NW 8 | WNW 8 | NW 8 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | WNW 5 | N 7 | N 9 | WNW 5 | WNW 9 | W 5 | WNW 4 |
| kJ | 1 | 1 | 1 | 1 | 15 | 3 | 7 | 9 | 14 | 11 | 13 | 24 | 42 | 41 | 16 | 24 | 7 | 9 | 16 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | NW 5 | — | S 14 | — | — | W 10 | NW 10 | NNW 9 | W 13 | NW 12 | SW 16 | W 7 | W 7 | W 7 | WNW 10 | WNW 10 | SW 13 | WNW 9 | WNW 5 | N 8 | WNW 9 |
| kJ | 1 | — | 4 | — | — | 2 | 4 | 8 | 3 | 6 | 10 | 9 | 4 | 4 | 33 | 32 | 7 | 27 | 9 | 1 | 15 |
Wind waves Height (m) Direction Period (s) | WNW 4 | NW 3 | NNW 4 | NNW 4 | NW 4 | NNW 5 | NNW 6 | NNW 6 | NW 6 | NNW 7 | NNW 7 | — | — | WNW 5 | — | — | NW 6 | — | WNW 5 | NNW 6 | N 3 |
| kJ | 8 | 6 | 13 | 12 | 19 | 28 | 49 | 56 | 44 | 113 | 117 | — | — | 15 | — | — | 31 | — | 11 | 23 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 937 | 1377 | 907 | 539 | 985 | 196 | 269 | 388 | 171 | 157 | 404 | 157 | 86 | 487 | 33 | 33 | 468 | 33 | 35 | 468 | 38 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Ribeira D'ilhas Surf forecast
The above surf forecast table for Ribeira D'ilhas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ribeira D'ilhas can be found by selecting the local surf guide option on the grey menu. Our Ribeira D'ilhas 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 (Ribeira D'ilhas) 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 Ribeira D'ilhas 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 Ribeira D'ilhas, 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 21 km (13 miles) away, Rio de Mouro, Cacem and Loures.
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