Cave Surf Break

Lat Long: 38.99° N 9.42° W

Cave Surf Forecast and Surf Report

Issued: 6 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cave sea temperature is
17.9°C
2.6° 

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


Cave surf forecast from 11 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 1AM (local time) - 10ft (3.0m), 10s period, NNW swell with cross-shore winds.
  • Most powerful swell: Thursday 17 Sep, 7AM (local time) - 10ft (3.0m), 10s period, NNW swell with 2,000 kJ wave energy.
  • Next surfable swell (1★+): Saturday 12 Sep, 4AM (local time) - 4ft (1.2m), 7s 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 Saturday (Sep 12) at 4AM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.3m and 9s. 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 3.0m 10s and forecast to arrive on Thursday (Sep 17) at 7AM. 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+) 4AM (Sat 12th Sep)4ft (1.2m) 7s
Best Surf 1AM (Thu 17th Sep)10ft (3.0m) 10s
Most Powerful 7AM (Thu 17th Sep)10ft (3.0m) 10s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Sun morning, min 19°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Mon afternoon, min 17°C on Tue night). Winds increasing (light winds from the NW on Mon afternoon, strong winds from the N by Tue night).

Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
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
2
0
1
2
2
2
1
0
0
0
0
0
0
0
!
!
!
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
NNW
6
1
NNW
6
1.2
NNW
7
1.1
NNW
7
0.9
NNW
8
0.9
NW
13
1.3
NW
12
1.3
NW
12
1
NW
11
0.9
NW
11
0.7
NW
10
0.6
NNW
10
0.4
NW
12
1.9
NNW
7
3
NNW
9
3
NNW
9
3
NNW
10
2.5
NNW
11
2.1
NNW
10
2.2
NNW
9
Wave Graph
Metric surfscale
Energy kJ
68
71
144
111
99
290
520
435
242
169
102
63
39
326
1550
1474
1712
1641
799
866
Wind (km/h)
25
NNW
15
N
10
NNE
15
NW
15
N
5
SSW
10
WNW
5
N
5
SSW
10
NW
15
N
20
N
30
NNW
40
N
45
N
40
N
35
N
30
N
30
N
35
N
Wind State
cross
cross
cross-off
cross-on
cross
glassy
on
cross-off
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
4:01AM2.96m
4:15PM3.17m
4:36AM2.94m
4:51PM3.04m
5:10AM2.86m
5:26PM2.85m
5:44AM2.73m
6:02PM2.62m
6:18AM2.55m
6:39PM2.37m
6:56AM2.36m
7:22PM2.13m
Low Tide
9:53PM-0.07m
10:02AM0.03m
10:27PM-0.02m
10:38AM0.08m
11:00PM0.11m
11:13AM0.19m
11:32PM0.29m
11:48AM0.36m
00:04AM0.50m
12:25PM0.57m
00:38AM0.73m
1:07PM0.80m
1:19AM0.95m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:15
7:16
7:16
7:18
7:18
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:51
7:50
7:47
7:46
7:45
7:43
 mm
Temp °C
22
20
26
25
25
28
26
26
28
24
22
21
20
19
18
19
19
21
20
18
Feels °C
19
21
25
23
24
27
24
25
27
23
21
19
17
15
12
13
14
16
16
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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