4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile 48 hour detailed Surf Forecast

Issued: 4 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
15.3° 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 (09 Aug):

  • Morning surf: Morning surf (09 Aug, local time) - 4ft (1.2m), 10s period with WNW swell.
  • Afternoon surf: Afternoon surf (09 Aug, local time) - 4ft (1.2m), 10s period with WNW swell.
  • Evening surf: Evening surf (09 Aug, local time) - 3.5ft (1.1m), 9s period with WNW swell.

The current surf forecast for 4 Mile at 8AM is: 0.8m 16s primary swell from a South-southwest direction and 1.0m 10s secondary swell from a West-northwest direction (forecast issued at 04:00am August 09). The wind direction is predicted to be glassy and the swell rating is 3.

Time (PDT) & DateWave HeightWave Period
Morning (09 Aug)4ft (1.2m)10s
Afternoon (09 Aug)4ft (1.2m)10s
Evening (09 Aug)3.5ft (1.1m)9s

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


Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun morning, min 13°C on Mon night). Wind will be generally light.

Sunday
9
Monday
10
Tuesday
11
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
2
3
2
1
0
1
2
2
2
3
1
0
0
1
2
2
2
2
1
1
0
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
16
0.8
SSW
16
0.8
SSW
16
1.2
WNW
10
1.2
WNW
10
1.2
WNW
10
1.1
WNW
9
1.2
WNW
9
1.3
WNW
9
1.4
WNW
9
1.4
WNW
9
1.3
WNW
9
1.3
WNW
9
1.1
WNW
9
1
WNW
9
1
WNW
9
1
WNW
9
1
WNW
9
1.1
WNW
9
1.1
WNW
9
1
WNW
9
1
WNW
9
0.6
SSW
18
0.7
SSW
18
Wave Graph
Metric surfscale
Energy kJ
291
288
288
259
246
246
217
231
261
327
327
299
255
199
165
144
144
151
203
199
154
164
209
273
Wind (km/h)
0
NNW
0
WSW
0
S
10
WSW
10
WSW
10
WNW
15
NW
5
NNW
5
NNW
5
NW
0
W
5
WSW
10
W
15
WNW
10
WNW
5
NW
0
WNW
0
SE
0
S
5
SW
10
WSW
10
W
10
W
0
NW
Wind State
glassy
glassy
glassy
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross
glassy
cross-on
cross-on
cross-on
cross
glassy
glassy
glassy
glassy
on
on
cross-on
cross-on
glassy
High Tide
9:44AM1.51m
7:58PM2.33m
10:25AM1.60m
8:56PM2.39m
11:02AM1.68m
9:50PM2.39m
Low Tide
2:45AM0.14m
1:37PM1.25m
3:35AM0.03m
2:44PM1.17m
4:20AM-0.03m
3:43PM1.08m
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:06
8:05
 mm
Temp °C
14
14
15
18
18
18
16
16
15
14
15
17
18
18
15
14
13
13
14
17
18
17
15
14
Feels °C
14
15
16
18
18
17
14
15
14
13
16
17
17
17
14
14
13
13
15
17
17
16
15
15
  • 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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