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Surf Forecasts:
Cave surfForecast / Ericeira / Portugal
16 Day Weather and Surf, issued 6 am Monday 11 May 2026 WESTForecast update in hr min s Forecast update imminent
Cave surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cave sea temperature is
16.5° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Cave this week:
The surf forecast for Cave over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 13) at 1AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.9m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cave in the next 16 days are 2.3m 13s and forecast to arrive on Monday (May 18) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Saturday (May 16) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 13th May) | 3ft (0.9m) 8s |
| Best Surf | 1AM (Fri 15th May) | 8ft (2.4m) 8s |
| Most Powerful | 1AM (Mon 18th May) | 7.5ft (2.3m) 13s |
Table - best surf conditions forecast for Cave over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Mon morning. Very mild (max 17°C on Mon afternoon, min 13°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Fri afternoon. Very mild (max 19°C on Sat morning, min 14°C on Thu morning). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the SE by Fri night). | ||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
NNW 12 | NNW 11 | NNW 11 | NNW 10 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 7 | NNW 8 | NNW 8 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NW 15 | NW 13 | |
844 | 764 | 444 | 301 | 143 | 101 | 71 | 45 | 140 | 254 | 507 | 781 | 1432 | 1172 | 913 | 804 | 606 | 484 | 602 | 492 | 1810 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross | cross-on | cross-on | cross-off | glassy | cross-on | cross | cross | cross | cross | cross-off | cross | cross-off | cross-off | on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 11:06AM2.09m | 11:21PM2.35m | 12:02PM2.28m | 00:15AM2.53m | 12:51PM2.50m | 1:04AM2.71m | 1:36PM2.72m | 1:52AM2.87m | 2:20PM2.90m | 2:39AM2.98m | 3:04PM3.04m | 3:27AM3.02m | 3:49PM3.10m | ||||||||
Low Tide | 5:03PM0.92m | 5:46AM0.66m | 6:02PM0.75m | 6:36AM0.46m | 6:53PM0.54m | 7:21AM0.27m | 7:41PM0.33m | 8:05AM0.13m | 8:27PM0.15m | 8:50AM0.05m | 9:14PM0.02m | 9:34AM0.04m | 10:02PM-0.03m | ||||||||
 | |  |  |  |  | | | | | | | | |  | | | |  | |  | |
 | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | 8:38 | — | — | 8:39 | — | — | 8:40 | — | — | 8:42 | — | — | 8:43 | — | — | 8:44 | — | — | 8:44 | — |
2 | 1 | 3 | 1 | — | — | — | — | — | — | — | — | — | 1 | 3 | — | 1 | 1 | — | — | 1 | |
Temp °C | 16 | 17 | 15 | 16 | 16 | 15 | 16 | 16 | 15 | 15 | 15 | 14 | 18 | 18 | 16 | 19 | 18 | 16 | 16 | 15 | 15 |
12 | 13 | 13 | 13 | 13 | 15 | 16 | 14 | 12 | 8 | 8 | 8 | 14 | 13 | 12 | 18 | 16 | 15 | 11 | 10 | 11 | |
Swell 1 Height (m) Direction Period (s) | NNW 12 | NNW 11 | NNW 11 | NNW 10 | NNW 9 | WSW 6 | NNW 8 | NNW 8 | SW 5 | WSW 5 | NNW 14 | NNW 13 | NNW 10 | SW 12 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NW 16 | NW 15 | NW 13 |
 kJ | 844 | 764 | 444 | 301 | 143 | 63 | 71 | 45 | 7 | 2 | 18 | 246 | 1432 | 6 | 913 | 804 | 606 | 484 | 132 | 492 | 1810 |
Swell 2 Height (m) Direction Period (s) | SW 18 | WNW 9 | WSW 7 | SW 6 | SSW 16 | NNW 8 | SW 6 | SW 6 | SSW 14 | W 11 | WNW 11 | SW 13 | SW 13 | SW 12 | W 9 | S 12 | W 16 | S 4 | NW 13 | S 19 | SW 18 |
| kJ | 13 | 17 | 107 | 52 | 25 | 101 | 25 | 19 | 19 | 2 | 11 | 7 | 7 | 6 | 2 | 3 | 5 | 3 | 44 | 7 | 13 |
Swell 3 Height (m) Direction Period (s) | — | SW 18 | SSW 17 | SSW 16 | — | SSW 15 | SSW 14 | NNW 9 | W 12 | SW 13 | SW 13 | — | — | — | SW 12 | — | — | WNW 15 | — | — | — |
| kJ | — | 12 | 28 | 25 | — | 21 | 21 | 29 | 3 | 7 | 7 | — | — | — | 6 | — | — | 21 | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 8 | SW 7 | — | — | SW 6 | — | — | — | NNW 9 | NNW 7 | NNW 8 | NNW 8 | — | NNW 10 | — | SSE 3 | S 4 | — | NNW 8 | NNW 8 | NNW 7 |
| kJ | 461 | 261 | — | — | 77 | — | — | — | 140 | 254 | 507 | 781 | — | 1172 | — | 4 | 8 | — | 602 | 424 | 191 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 42 | 415 | 5 | 42 | 42 | 0 | 0 | 37 | 223 | 131 | 985 | 131 | 2 | 35 | 2 | 0 | 19 | 106 | 400 | 485 | 222 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cave surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Cave Surf forecast
The above surf forecast table for Cave provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cave can be found by selecting the local surf guide option on the grey menu. Our Cave 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 (Cave) 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 Cave 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 Cave, 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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