4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile 48 hour detailed Surf Forecast

Issued: 10 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
15.4° C
0.7° 

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


How big are the waves at 4 Mile today (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 3.5ft (1.1m), 9s period with WNW swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
  • Evening surf: Evening surf (12 Aug, local time) - 2.5ft (0.7m), 16s period with SSW swell.

The current surf forecast for 4 Mile at 6PM is: 0.6m 16s primary swell from a South-southwest direction and 1.1m 8s secondary swell from a West-northwest direction (forecast issued at 10:00am August 12). The wind direction is predicted to be cross-onshore.

Time (PDT) & DateWave HeightWave Period
Morning (12 Aug)3.5ft (1.1m)9s
Afternoon (12 Aug)2ft (0.6m)16s
Evening (12 Aug)2.5ft (0.7m)16s

Table - waves today at 4 Mile. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 18°C on Fri afternoon, min 13°C on Wed morning). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
1
0
0
1
2
2
2
2
1
1
0
0
0
1
2
2
2
0
0
0
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
WNW
9
1.1
WNW
9
0.6
SSW
16
0.6
SSW
16
0.7
SSW
16
0.8
SSW
16
0.7
SSW
16
0.6
SSW
16
0.6
SSW
16
0.6
SSW
16
0.7
SSW
16
0.7
SSW
16
0.7
SW
15
0.7
SW
15
0.7
SW
15
0.7
SSW
15
0.7
SSW
15
0.7
SSW
15
0.5
SSW
19
0.5
SSW
18
0.6
SSW
18
0.6
SSW
18
Wave Graph
Metric surfscale
Energy kJ
194
186
181
175
229
326
226
171
169
164
215
212
239
236
242
209
196
188
205
184
249
249
Wind (km/h)
10
SSE
10
S
10
SSW
10
SSW
5
SSW
5
SSW
5
SSW
5
SE
10
SSE
10
SSW
10
SW
15
W
15
WNW
10
NW
10
NNW
10
NNW
5
NNW
10
W
15
W
20
WNW
20
NW
15
NNW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
glassy
cross
cross-on
on
cross-on
cross-on
cross
cross-off
cross-off
glassy
cross-on
cross-on
cross
cross
cross-off
High Tide
11:38AM1.77m
10:42PM2.32m
12:13PM1.85m
11:33PM2.19m
12:48PM1.92m
Low Tide
5:03AM-0.01m
4:40PM0.98m
5:42AM0.08m
5:35PM0.88m
6:20AM0.22m
6:30PM0.81m
cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:04
8:01
8:00
 mm
Temp °C
13
16
16
16
15
14
14
14
15
16
16
16
15
14
14
13
15
17
17
18
16
14
Feels °C
12
15
15
15
15
14
14
14
14
16
15
14
14
13
13
12
15
16
15
15
13
12
  • 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
How to use the Wavefinder 

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 4 Mile 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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