4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile 48 hour detailed Surf Forecast

Issued: 4 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
15.1°C
0.3° 

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 (29 Aug):

  • Morning surf: Morning surf (29 Aug, local time) - 4ft (1.2m), 18s period with SSW swell.
  • Afternoon surf: Afternoon surf (29 Aug, local time) - 3.5ft (1.0m), 17s period with SSW swell.
  • Evening surf: Evening surf (29 Aug, local time) - 3.5ft (1.1m), 16s period with SSW swell.

The current surf forecast for 4 Mile at 12PM is: 1.1m 17s primary swell from a South-southwest direction and 0.3m 9s secondary swell from a South direction, 1.1m 8s secondary swell from a West-northwest direction (forecast issued at 04:00am August 29). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (29 Aug)4ft (1.2m)18s
Afternoon (29 Aug)3.5ft (1.0m)17s
Evening (29 Aug)3.5ft (1.1m)16s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Sat afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the NW on Sat afternoon, calm by Sun night).

Saturday
29
Sunday
30
Monday
31
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)
3
3
3
1
0
0
2
1
3
4
2
0
0
0
1
3
3
3
2
2
0
0
1
1
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)
0.9
SSW
18
1.1
SSW
18
1.2
SSW
18
1.2
SSW
18
1.1
SSW
17
1
SSW
16
1.1
SSW
16
1.2
SSW
16
1.2
SSW
16
1.2
SSW
16
1.2
SSW
16
1.1
SSW
16
1.1
SSW
15
1
SSW
15
1
SSW
15
1
SSW
14
1
SSW
14
1
SSW
14
1
SSW
14
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
13
Wave Graph
Metric surfscale
Energy kJ
486
705
877
823
681
505
590
688
688
679
671
554
505
411
405
400
400
394
394
325
233
226
210
158
Wind (km/h)
15
NNW
15
NNW
10
NW
20
WNW
25
WNW
30
NW
25
NNW
20
NW
15
NNW
15
NNW
15
NW
15
WNW
20
W
20
WNW
15
NW
10
NNW
5
N
5
NNW
5
NW
10
WSW
15
W
15
WNW
10
WNW
10
NW
Wind State
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross
cross-off
cross-off
glassy
cross
cross-on
cross-on
cross-on
cross
cross
High Tide
11:15PM1.97m
12:11PM1.85m
00:00AM1.86m
12:37PM1.92m
00:49AM1.72m
1:06PM1.98m
Low Tide
5:49AM0.47m
6:04PM0.80m
6:16AM0.60m
6:51PM0.71m
6:43AM0.74m
7:44PM0.64m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
cloud
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:37
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:40
7:39
7:38
 mm
Temp °C
16
15
15
18
19
20
16
14
13
12
13
16
16
16
14
13
12
12
13
16
17
17
16
15
Feels °C
14
13
13
15
15
14
12
11
11
10
11
14
13
13
12
12
11
12
12
15
15
15
15
14
  • 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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