Cave Surf Break

Lat Long: 38.99° N 9.42° W

Cave Surf Forecast and Surf Report

Issued: 6 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cave sea temperature is
20.1°C
0.4° 

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


Cave surf forecast from 8 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 10AM (local time) - 3.5ft (1.1m), 13s period, NW swell with glassy winds.
  • Most powerful swell: Thursday 10 Sep, 4PM (local time) - 6ft (1.8m), 11s period, NNW swell with 759 kJ wave energy.
  • Next surfable swell (1★+): Saturday 12 Sep, 4AM (local time) - 3ft (0.9m), 6s 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 0.9m and 6s period with a secondary swell of 0.4m and 10s. 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 1.8m 11s and forecast to arrive on Thursday (Sep 10) at 4PM. 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)3ft (0.9m) 6s
Best Surf10AM (Sun 13th Sep)3.5ft (1.1m) 13s
Most Powerful 4PM (Thu 10th Sep)6ft (1.8m) 11s

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


Short Range Forecast

Mostly dry. Warm (max 22°C on Fri morning, min 17°C on Thu night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 31°C on Sun morning, min 19°C on Fri night). Wind will be generally light.

Tue
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
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
1
0
0
0
0
0
1
0
1
3
1
3
2
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)
1.2
NW
9
1
NW
9
1.5
NNW
8
1.9
NNW
8
2
NNW
8
1.7
NNW
8
1.8
NNW
11
1.1
NNW
10
1.4
NNW
7
1.2
NNW
7
0.9
NNW
6
1.1
NNW
6
0.9
NNW
7
0.6
NNW
15
1.1
NW
13
1.3
NW
12
1.4
NW
12
1.2
NW
11
0.9
NNW
11
0.9
NW
10
Wave Graph
Metric surfscale
Energy kJ
241
148
307
419
471
355
759
218
186
121
61
96
82
146
437
520
561
380
207
148
Wind (km/h)
20
NNW
20
NNW
30
N
35
NNW
30
N
25
N
30
NNW
30
N
20
N
25
NNW
15
N
10
NNE
10
NW
15
NNE
0
SE
15
NW
10
NNE
5
SE
15
W
5
WSW
Wind State
cross-on
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross
cross-off
cross-on
cross-off
glassy
cross-on
cross-off
cross-off
on
glassy
High Tide
2:02AM2.63m
2:16PM3.00m
2:45AM2.80m
2:59PM3.15m
3:25AM2.92m
3:38PM3.21m
4:01AM2.96m
4:15PM3.17m
4:36AM2.94m
4:51PM3.04m
5:10AM2.86m
5:26PM2.85m
Low Tide
7:52PM0.27m
8:03AM0.35m
8:37PM0.08m
8:45AM0.17m
9:16PM-0.04m
9:25AM0.07m
9:53PM-0.07m
10:02AM0.03m
10:27PM-0.02m
10:38AM0.08m
11:00PM0.11m
11:13AM0.19m
11:32PM0.29m
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:13
7:13
7:15
7:16
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:55
7:54
7:52
7:51
7:50
7:47
 mm
Temp °C
20
20
19
19
18
21
21
18
22
21
20
27
26
27
31
29
29
30
28
25
Feels °C
19
21
14
14
13
17
17
14
20
18
20
26
25
24
29
25
26
27
26
24
  • 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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