4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile Surf Forecast and Surf Report

Issued: 4 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
14.8°C
0.2° 

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 2 Sep 2026:

  • Best quality surf: Thursday 3 Sep, 5AM (local time) - 2.5ft (0.7m), 18s period, SSW swell with glassy winds.
  • Most powerful swell: Monday 7 Sep, 11AM (local time) - 4.5ft (1.4m), 14s period, S swell with 801 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 11PM (local time) - 2ft (0.6m), 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 Wednesday (Sep 02) at 11PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.7m and 12s. Another secondary swell of 0.6m and 9s 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 1.4m 14s and forecast to arrive on Monday (Sep 07) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 14s period and expected on Sunday (Sep 06) at 8PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Wed 2nd Sep)2ft (0.6m) 16s
Best Surf 5AM (Thu 3rd Sep)2.5ft (0.7m) 18s
Most Powerful11AM (Mon 7th Sep)4.5ft (1.4m) 14s

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


The Lowdown

Alright, this is Rusty, and I’m looking at what’s on offer for the next couple of weeks at 4 Mile. The pattern's a bit of a slow burn, with a whole lot of average to below-average days. The standout moment is a big one, but it’s a long way off and comes with a serious caveat.

We’re starting off on Wednesday, September 2nd with tiny, weak surf. The early morning shows a 2ft swell out of the southwest with a seriously long period of 17 seconds, but it's a cross-on breeze and the overall wave energy is only marginal. The water temp is sitting at 59°, which is pretty average for this time of year. This pattern of small, messy surf hangs around for the next week. Most mornings through to the 9th see waist-high waves, mostly from the SSW, with that cross-on wind messing up the face. The energy picks up a bit on the 3rd, 4th and 5th, but the wind keeps things choppy. It’s a frustrating stretch of 3ft to 5ft swell that never really cleans up. Afternoons are generally worse, with stronger cross-shore winds from the WNW.

The real standout, and the only thing worth getting excited about, arrives on Thursday, September 10th.

That morning sees a massive 12ft south swell pumping in, with a combined energy reading of 2425 – that’s strong, powerful groundswell. The problem is, the early report flags it as too big for this break, and honestly, at that size, this is only for expert surfers. It’s a point break, so the long interval swell should line up nicely, but 12ft is a whole lot of ocean. The wind is light cross-on in the morning, going straight onshore by the afternoon. If you are a seasoned charger, this is your window, but know your limits.

After that big pulse, things drop back down quickly.

Friday, September 11th offers a sliver of hope. The morning session brings a glassy 3ft swell from the SSW. That glassy wind, with a period of 16 seconds, should make for some clean, rippable walls at this point break. It’s not big, but it’s the only truly clean window in the whole run. Crowds are likely here, so get out early.

The rest of the second week fades back into small, onshore slop. From the 12th through to the 17th, it’s mostly 2ft to 3ft of weak, cross-shore chop. The energy is low, the wind is bad, and the quality just isn’t there. The only consistent thing is the inconsistent quality.

So, to wrap it up: the first week is a write-off. The 10th of September is the big, dangerous gem for experts only. The 11th morning is the best bet for anyone looking for a clean, fun-sized wave. After that, it’s back to watching the forecast.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Wed afternoon, min 14°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Sat morning, min 13°C on Sun night). Wind will be generally light.

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
2
2
3
2
0
3
2
0
3
1
1
3
2
1
3
2
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SW
17
0.6
SSW
13
0.7
SSW
17
0.8
SSW
19
0.9
SSW
19
0.9
SSW
18
1
SSW
17
1
SSW
16
1.1
SSW
16
1
SSW
16
1
SSW
16
1
SSW
15
0.9
SSW
15
0.9
SSW
15
1
S
14
1.4
S
14
1.4
S
14
1.4
S
13
1.4
S
13
1.3
S
12
1.2
S
12
Wave Graph
Metric surfscale
Energy kJ
137
131
246
415
566
497
576
518
590
475
457
428
305
305
405
801
797
690
649
501
409
Wind (km/h)
10
S
15
W
5
N
10
S
10
SW
10
N
10
W
25
WNW
10
N
10
WNW
25
NW
10
N
15
WNW
25
WNW
10
N
10
W
15
WNW
5
NNE
10
WSW
15
WNW
0
WSW
Wind State
cross-on
cross-on
cross-off
cross-on
on
cross-off
cross-on
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
cross-on
cross
glassy
cross-on
cross-on
glassy
High Tide
2:22PM2.04m
4:33AM1.35m
3:16PM2.05m
6:27AM1.36m
4:24PM2.06m
7:51AM1.44m
5:40PM2.09m
8:41AM1.53m
6:52PM2.14m
9:18AM1.63m
7:56PM2.18m
9:52AM1.73m
8:54PM2.20m
Low Tide
9:55PM0.53m
8:26AM1.17m
11:13PM0.46m
9:30AM1.28m
00:28AM0.37m
11:09AM1.33m
1:32AM0.26m
12:42PM1.28m
2:26AM0.19m
1:54PM1.17m
3:12AM0.15m
2:54PM1.03m
3:53AM0.18m
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:39
6:41
6:41
6:43
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:36
7:34
7:32
7:30
7:30
7:28
7:27
 mm
Temp °C
17
18
16
17
17
17
17
18
17
19
19
17
17
19
16
17
18
16
18
19
15
Feels °C
16
17
15
16
16
17
15
14
13
17
15
13
15
15
13
16
16
15
18
18
15
  • Map Icons:
  • Break
  • 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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