Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile 48 hour detailed Surf Forecast

Issued: 10 am 20 Oct 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
17.5°C
3.0° 

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 (20 Oct):

  • Morning surf: Morning surf (20 Oct, local time) - 3.5ft (1.0m), 16s period with SSW swell.
  • Afternoon surf: Afternoon surf (20 Oct, local time) - 3.5ft (1.0m), 15s period with SSW swell.
  • Evening surf: Evening surf (20 Oct, local time) - 4.5ft (1.3m), 12s period with WNW swell.

The current surf forecast for 4 Mile at 5PM is: 1.0m 15s primary swell from a South-southwest direction and 1.0m 12s secondary swell from a West-northwest direction, 0.4m 3s secondary swell from a West-northwest direction (forecast issued at 10:00am October 20). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (20 Oct)3.5ft (1.0m)16s
Afternoon (20 Oct)3.5ft (1.0m)15s
Evening (20 Oct)4.5ft (1.3m)12s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Very mild (max 18°C on Wed afternoon, min 13°C on Tue morning). Wind will be generally light.

Tuesday
20
Wednesday
21
Thursday
22
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
2
1
4
4
4
3
3
2
2
2
1
3
2
3
3
3
3
2
2
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
SSW
16
1
SSW
16
1
SSW
15
1
SSW
15
1.3
WNW
12
1.4
WNW
12
1.3
WNW
12
1
SSW
14
1
SSW
14
1
SSW
14
1
SSW
14
0.7
SSW
16
0.8
SSW
14
0.6
SSW
19
0.9
SSW
14
0.9
SSW
14
0.9
SSW
15
0.9
SSW
15
0.8
SSW
14
0.8
SSW
14
0.7
SSW
18
1.4
WNW
8
Wave Graph
Metric surfscale
Energy kJ
527
513
468
456
551
628
491
449
449
449
407
266
247
286
351
371
376
376
273
265
326
249
Wind (km/h)
5
ENE
5
SSE
10
W
15
NW
5
NNW
0
SE
5
SE
5
ESE
5
ESE
5
NW
5
WNW
10
WNW
10
NW
10
N
5
NNW
5
NE
5
NW
5
WNW
5
WNW
5
WNW
10
NW
10
NW
Wind State
off
glassy
cross-on
cross
cross-off
glassy
glassy
cross-off
glassy
cross
cross
cross
cross
cross-off
cross-off
off
glassy
glassy
glassy
cross
cross
cross
High Tide
8:05AM1.67m
6:40PM1.67m
8:23AM1.75m
7:40PM1.68m
8:42AM1.85m
8:34PM1.70m
Low Tide
1:24PM1.22m
1:33AM0.59m
2:08PM1.05m
2:07AM0.62m
2:48PM0.86m
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
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7:20
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—
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7:22
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—
—
—
—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
6:24
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—
—
—
—
—
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6:23
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—
—
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6:22
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 mm
—
—
—
—
—
—
—
—
—
—
—
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1
1
3
3
2
1
1
—
—
—
Temp °C
13
16
17
17
17
16
16
15
15
17
18
17
16
16
15
14
14
15
15
15
15
14
Feels °C
12
15
15
14
16
16
16
14
15
16
17
15
15
15
15
14
14
15
15
15
14
13
  • 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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