Cave Surf Break

Lat Long: 38.99° N 9.42° W

Cave Surf Forecast and Surf Report

Issued: 6 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cave sea temperature is
21.4° C
1.0° 

Cave surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Cave surf forecast from 12 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 7AM (local time) - 10ft (3.0m), 9s period, NNW swell with cross-shore winds.
  • Most powerful swell: Sunday 16 Aug, 4AM (local time) - 11ft (3.5m), 9s period, NNW swell with 1,680 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 7AM (local time) - 10ft (3.0m), 9s period with NNW swell.

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 Sunday (Aug 16) at 7AM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Cave in the next 16 days are 3.5m 9s and forecast to arrive on Sunday (Aug 16) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 16th Aug)10ft (3.0m) 9s
Best Surf 7AM (Sun 16th Aug)10ft (3.0m) 9s
Most Powerful 4AM (Sun 16th Aug)11ft (3.5m) 9s

Table - best surf conditions forecast for Cave over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 23°C on Wed morning, min 19°C on Wed night). Winds increasing (light winds from the N on Wed night, strong winds from the NNW by Fri night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Mon morning, min 19°C on Sat night). Winds decreasing (strong winds from the NNW on Sat night, light winds from the NNE by Mon night).

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
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
0
0
0
0
0
!
0
!
!
0
1
!
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
WNW
10
0.9
WNW
10
0.9
WNW
10
0.9
WNW
10
1.1
WNW
10
1
WNW
10
0.9
WNW
9
1.4
NNW
7
2.1
NNW
7
3
NNW
8
2.5
NNW
8
3
NNW
9
2.5
NNW
9
2.3
NNW
8
2.5
NNW
9
2.3
NNW
9
2
NNW
8
2
NNW
8
2.1
NNW
9
1.8
NNW
9
1.7
NNW
8
Wave Graph
Metric surfscale
Energy kJ
120
154
154
154
237
175
130
158
462
998
956
1233
1097
739
1020
851
581
541
697
471
361
Wind (km/h)
20
N
25
NNW
25
N
20
N
25
NNW
25
N
30
N
35
NNW
35
N
40
NNW
40
NNW
45
NNW
25
N
30
NNW
25
N
15
NE
35
N
20
N
10
NE
15
NW
10
N
Wind State
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross-off
cross-on
cross
High Tide
3:17PM3.16m
3:45AM2.89m
4:01PM3.26m
4:27AM2.93m
4:42PM3.25m
5:07AM2.90m
5:22PM3.14m
5:45AM2.80m
6:01PM2.95m
6:23AM2.67m
6:40PM2.71m
7:02AM2.50m
7:21PM2.44m
Low Tide
9:36PM-0.05m
9:45AM0.08m
10:18PM-0.10m
10:26AM0.04m
10:58PM-0.07m
11:05AM0.09m
11:36PM0.05m
11:44AM0.20m
00:12AM0.24m
12:23PM0.38m
00:49AM0.46m
1:04PM0.59m
1:27AM0.69m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:48
6:48
6:50
6:50
6:52
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:36
8:34
8:32
8:31
8:30
8:29
 mm
Temp °C
23
23
20
22
22
20
22
22
21
21
21
20
23
23
21
28
26
22
28
25
22
Feels °C
22
22
19
21
21
18
20
19
18
16
16
15
21
20
19
25
22
19
26
24
22
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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 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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