4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile Surf Forecast and Surf Report

Issued: 4 pm 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
15.4°C
0.4° 

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


4 Mile surf forecast from 11 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 2AM (local time) - 7ft (2.2m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Monday 14 Sep, 11PM (local time) - 8ft (2.4m), 9s period, NW swell with 865 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 2AM (local time) - 3ft (0.9m), 16s period with SSW swell.

Best Forecast Surf Conditions for 4 Mile this week:

The surf forecast for 4 Mile over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 2AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.6m and 11s. Another secondary swell of 0.9m and 11s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at 4 Mile in the next 16 days are 2.4m 9s and forecast to arrive on Monday (Sep 14) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 11th Sep)3ft (0.9m) 16s
Best Surf 2AM (Tue 15th Sep)7ft (2.2m) 9s
Most Powerful11PM (Mon 14th Sep)8ft (2.4m) 9s

Table - best surf conditions forecast for 4 Mile over the next 16 days.


The Lowdown

Hey folks, Rusty here. Let's talk about the surf ahead at 4 Mile.

We’re looking at a pretty bleak 16-day stretch, to be honest. The pattern is dominated by onshore and cross-shore winds, which is going to keep things messy. There are no true standouts in the window – it’s a long run of mediocre to poor conditions. The only real highlight is a brief window of opportunity, but it comes with a major caveat.

We start off with a bit of a tease. Thursday the 10th, we’ve got a 3ft SSW groundswell rolling in with a long 17-second period. That long period means better shaped waves and more energy, but it’s coming in with a moderate cross-shore breeze. The water temp is 60°, which is about average for this time of year. The combined swell energy is moderate at 620. It’s marginal at best.

Friday the 11th is more of the same – similar swell size and direction, with that persistent cross-shore wind. The energy climbs slightly to 778, but it’s still not clean.

Then things go downhill fast. From Saturday the 12th through Tuesday the 23rd, it’s a wasteland. We’ve got a mix of short-period windswell and stronger onshore winds. The swell bumps up to 6ft on Monday the 14th, but with a poor 9-second period and cross-shore winds, the wave comment says it all: “poor surf conditions.” The energy jumps to 548, but it’s just lumpy, choppy junk. For a couple of days around the 13th, the swell is from the WNW with a period as low as 6-7 seconds – that’s pure windswell, no shape, no power worth paddling for. The setup looks more interesting for kite surfing than paddle surfing on those days.

There is one tiny glimmer. On Wednesday the 16th morning, the wind goes light offshore from the WSW. But the swell has dropped right off to a tiny 2ft. Even though it’s an onshore wind later in the day, that morning session could be glassy. It’s a long wait for a very small, clean window.

The final few days from the 21st to the 25th just repeat the pattern: small, weak swell (3ft to 3ft) from the SSW, with moderate cross-shore winds and “poor” or “marginal” conditions. The combined energy stays in the moderate range, topping out at 518 on the 22nd, but with the persistent messy wind, it’s not going to offer anything worth getting excited about.

In short, this is a long 16-day dry spell. The best you can hope for is a very small, clean morning on the 16th. Otherwise, save your energy.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Thu afternoon, min 13°C on Sat night). Winds increasing (light winds from the NNW on Thu night, fresh winds from the NW by Sat afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Sun afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the NW on Sun afternoon, calm by Wed morning).

Thu
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
1
1
3
0
0
1
0
0
3
1
0
4
1
0
1
1
0
2
Swell
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
17
0.9
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SW
15
0.9
SW
14
0.7
SW
14
1.3
WNW
7
1.2
WNW
7
1.5
WNW
6
1.9
NW
8
1.7
WNW
9
1.7
WNW
9
2.2
NW
9
1.4
WNW
8
1.2
WNW
8
1.2
WNW
8
1
WNW
8
0.5
SSW
17
0.5
SSW
17
Wave Graph
Metric surfscale
Energy kJ
432
430
425
403
309
305
211
159
123
170
509
426
426
766
284
192
197
144
168
164
Wind (km/h)
25
NW
10
NNW
20
WNW
25
NW
15
NNW
20
NW
35
NW
20
NNW
20
NW
30
NW
10
NNW
10
WNW
25
NW
15
NNW
10
WNW
15
W
10
NW
5
WSW
15
WNW
10
NNW
Wind State
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
cross
cross-on
cross
on
cross-on
cross-off
High Tide
10:38PM2.08m
11:24AM1.99m
11:29PM1.96m
11:54AM2.04m
00:20AM1.82m
12:25PM2.05m
1:13AM1.67m
12:56PM2.03m
2:13AM1.53m
1:30PM1.98m
3:25AM1.43m
2:08PM1.91m
Low Tide
4:38PM0.74m
5:05AM0.38m
5:26PM0.62m
5:38AM0.54m
6:14PM0.55m
6:10AM0.72m
7:02PM0.51m
6:41AM0.89m
7:52PM0.52m
7:12AM1.05m
8:48PM0.55m
7:43AM1.19m
9:51PM0.59m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:48
6:48
6:48
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:23
7:22
7:21
7:19
7:17
7:15
7:15
 mm
Temp °C
28
23
19
21
18
19
20
16
17
19
16
18
18
15
16
17
14
16
17
14
Feels °C
24
21
17
18
16
16
15
12
14
14
12
17
15
11
15
15
13
15
16
13
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the 4 Mile Surf forecast

The above surf forecast table for 4 Mile provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 4 Mile can be found by selecting the local surf guide option on the grey menu. Our 4 Mile 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 (4 Mile) 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 4 Mile 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.

4 Mile is 12 km (7 miles) from Santa Cruz. If you plan a vacation in Santa Cruz, look for hotels and other accommodation in Santa Cruz. Santa Cruz has rooms for a wide range of budgets as well as car hire and transport links.

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