Cave Surf Forecast

/ Ericeira (18 surf breaks) /

Portugal (226 surf breaks)

Surf Forecasts:

Cave surfForecast / Ericeira / Portugal

12 Day Weather and Surf, issued 12 pm Sunday 31 Aug 2025 WEST

Forecast 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 19.5° C
(Which is slightly cooler than normal)

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 Monday (Sep 01) at 7AM. The primary swell is predicted to be 3.5m and 12s 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 3.5m 13s and forecast to arrive on Monday (Sep 01) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Sep 05) at 4AM.

Wave Type	Time (WEST) & Date	Wave Height & Period
Next good surf (1 star+)	7AM (Mon 1st Sep)	11ft (3.5m) 12s
Best Surf	7AM (Mon 1st Sep)	11ft (3.5m) 12s
Most Powerful	1PM (Mon 1st Sep)	11ft (3.5m) 13s

Table - best surf conditions forecast for Cave over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Mostly dry. Warm (max 20°C on Sun morning, min 18°C on Sun night). Mainly fresh winds.									Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Wed morning, min 17°C on Thu night). Mainly fresh winds.
	Sunday 31			Monday 01			Tuesday 02			Wednesday 03			Thursday 04			Friday 05			Saturday 06
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	!	0	!	!	!	!	!	0	!	!	!	!	!	0	0	1	1	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Period(s) (?)	10	11	12	13	13	12	12	11	11	11	10	12	12	11	11	10	10	10	10	10	10
Wave Graph (?)
Energy (?)	962	1565	2414	3293	3204	2302	1530	1072	1094	1099	880	1521	1456	1116	1003	1077	888	756	671	671	386
Wind (km/h)	NNW	NW	NNW	NNW	NNW	NNW	NNW	NW	N	N	NW	NNW	N	NNW	N	N	N	N	N	NNW	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross	cross- on	cross- on	cross- on	cross- on	cross	cross	cross- on	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross
High Tide / height (m)			8:54PM 1.91	9:39AM 1.97		10:35PM 1.85	11:20AM 2.01		12:06AM 1.95	12:32PM 2.19		1:05AM 2.14		1:22PM 2.43	1:48AM 2.36		2:02PM 2.68	2:26AM 2.58		2:39PM 2.92	3:03AM 2.77
Low Tide / height (m)		2:34PM 1.07	3:00AM 1.14		4:09PM 1.16		4:43AM 1.17	5:51PM 1.08		6:10AM 1.04	6:56PM 0.87		7:05AM 0.83		7:40PM 0.63	7:47AM 0.60		8:18PM 0.38	8:25AM 0.38		8:55PM 0.14

	Sunday 31			Monday 01			Tuesday 02			Wednesday 03			Thursday 04			Friday 05			Saturday 06
Sunrise	7:03	-	-	7:05	-	-	7:05	-	-	7:07	-	-	7:07	-	-	7:09	-	-	7:09	-	-
Sunset	-	8:09	-	-	8:08	-	-	8:07	-	-	8:06	-	-	8:04	-	-	8:01	-	-	8:00	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	20	20	19	20	20	19	20	20	19	21	21	20	20	20	17	19	19	17	20	20	18
Feels °C (?)	17	15	16	17	17	18	20	19	19	20	20	19	16	16	13	14	14	13	18	17	16

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Ericeira

Wind Update Continuing clean conditions at Cave (light winds from the WNW at Torres Vedras wx 18 km from Cave). A 2.3m groundswell from the NW is too big for here
1 hour 32 minutes ago Cave

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18 km away, 1 h 32 min ago

10 km/h

WNW

0.0

19.5

Air / Water (°C)

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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 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.