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Cave surfForecast / Ericeira / Portugal
12 Day Weather and Surf, issued 11 pm Thursday 18 Dec 2025 WETForecast 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
16.0° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 19) at 9PM. The primary swell is predicted to be 5.0m and 17s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Cave in the next 12 days are 6.0m 15s and forecast to arrive on Monday (Dec 22) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 19th Dec) | 16ft (5.0m) 17s |
| Best Surf | 9PM (Fri 19th Dec) | 16ft (5.0m) 17s |
| Most Powerful | 3AM (Mon 22nd Dec) | 20ft (6.0m) 15s |
Table - best surf conditions forecast for Cave over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 34mm), heaviest during Thu night. Very mild (max 15°C on Thu night, min 12°C on Thu night). Winds increasing (light winds from the NW on Fri night, strong winds from the W by Sat night). | Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Mon night. Very mild (max 15°C on Mon morning, min 13°C on Sun night). Mainly near gales. | |||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 17 | 16 | 16 | 17 | 16 | 14 | 14 | 15 | 15 | 14 | 16 | 15 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 16533 | 12726 | 13431 | 13092 | 7184 | 4401 | 6308 | 11287 | 10650 | 15142 | 13755 | 10888 | 7927 | 6882 | 6839 | 5593 | 4764 | 3859 | 1597 | 1385 | 936 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | on | cross- on | on | cross- on | on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | |
High Tide / height (m) | 1:57AM 2.64 | 2:18PM 2.50 | 2:33AM 2.70 | 2:54PM 2.52 | 3:08AM 2.74 | 3:29PM 2.52 | 3:44AM 2.76 | 4:04PM 2.49 | 4:20AM 2.74 | 4:41PM 2.44 | 4:57AM 2.70 | 5:20PM 2.39 | 5:36AM 2.65 | |||||||||
Low Tide / height (m) | 8:09AM 0.48 | 8:17PM 0.51 | 8:45AM 0.43 | 8:52PM 0.47 | 9:22AM 0.41 | 9:27PM 0.46 | 9:58AM 0.41 | 10:01PM 0.47 | 10:34AM 0.44 | 10:37PM 0.51 | 11:13AM 0.48 | 11:16PM 0.56 | 11:54AM 0.52 | |||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Sunrise | - | 7:50 | - | - | 7:52 | - | - | 7:52 | - | - | 7:52 | - | - | 7:52 | - | - | 7:54 | - | - | 7:54 | - | |
| Sunset | - | - | 5:16 | - | - | 5:16 | - | - | 5:17 | - | - | 5:17 | - | - | 5:19 | - | - | 5:20 | - | - | 5:20 | |
 |  |  |  |  | |  |  |  | | | | | | | | | | | | | ||
Rain (mm) | 24 | 1 | - | - | - | 2 | 4 | 3 | - | 4 | - | - | 11 | 1 | 1 | 2 | - | - | 1 | 1 | - | |
| Temp. °C | 15 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | |
| Feels °C (?) | 10 | 6 | 5 | 5 | 9 | 8 | 7 | 5 | 5 | 4 | 9 | 9 | 9 | 6 | 6 | 7 | 5 | 5 | 5 | 7 | 7 | |
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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.
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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 12 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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