4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile Surf Forecast and Surf Report

Issued: 10 am 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
14.5° C
0.1° 

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 3 Aug 2026:

  • Best quality surf: Sunday 9 Aug, 11PM (local time) - 7ft (2.1m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Sunday 9 Aug, 11PM (local time) - 7ft (2.1m), 9s period, NW swell with 744 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 8PM (local time) - 4.5ft (1.3m), 10s period with WNW 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 Monday (Aug 03) at 8PM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.4m and 16s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at 4 Mile in the next 16 days are 2.1m 9s and forecast to arrive on Sunday (Aug 09) 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+) 8PM (Mon 3rd Aug)4.5ft (1.3m) 10s
Best Surf11PM (Sun 9th Aug)7ft (2.1m) 9s
Most Powerful11PM (Sun 9th Aug)7ft (2.1m) 9s

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


The Lowdown

G’day, Rusty here. Let’s see what’s been cooking for the next stretch. Right off the bat, Monday the 3rd is a bit of a letdown—there’s some swell on the way, but it’s all tangled up in poor conditions. We’re looking at a rough start with a lot of "marginal" and "poor" labels on the board. The first few days are going to be a grind, with only weak energy showing up. The water’s sitting at 58°, which is pretty much bang on average for this time of year.

We’re looking at a real dry spell from the 3rd through to the 8th. Most of that time we’ve got small, short-period swell and a lot of cross-onshore wind, which just chops it all up. Wednesday the 5th and Thursday the 6th are basically flat, with the swell bottoming out at 1ft and a long-period pulse that’s just not doing anything for this spot. It’s a waiting game.

Now, things start to get interesting on Sunday the 9th. We finally see a jump in size—5ft from the WNW—and the energy is moderate (704). It’s still cross-shore winds, so it’s not perfect, but it’s a sign of life. Monday the 10th keeps that going with 6ft, but again, it’s a bit lumpy.

But the real standout, the one to circle on the calendar, is Tuesday the 11th. That morning, 4 Mile (Big Island) is where I’d be. The swell jumps to 8ft from the NW, the period is a solid 9 seconds, and the combined energy is strong, reading 1542. The wind is light and cross-on, but it’s the biggest, most powerful swell of the whole run. This is one for the advanced crew—at that size, it’s not playing around. The direction is a little off from the W optimum, but the power is there. It’s the best look we get.

After that, it’s all downhill again. Wednesday the 12th through the 14th sees the size drop back to 5ft, and the winds get stronger and more cross-shore, turning it messy. The period drops back to 8-9 seconds, and the energy weakens. Friday the 14th afternoon is a write-off.

The second week is pretty quiet. We get some cleaner conditions on the 15th and 16th with light winds, but the swell is tiny, only 3-3ft. It’s a fun, small-wave weekend for those who are keen, but nothing to get excited about.

Then we get one more pulse. Monday the 17th has a bit of size, 6-6ft, but the wind is on it. And Tuesday the 18th morning brings another 7ft from the NW, with a light wind and moderate-to-strong energy (1137). It’s a promising look, but it’s over a week out, so I’d treat it as a "maybe" rather than a certainty.

So, bottom line: Tuesday the 11th is the day. That’s the big one. Get out there early and enjoy it, because the rest of the window is mostly just waiting for that kind of juice again.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Wed afternoon, min 13°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Fri morning, min 13°C on Sat night). Wind will be generally light.

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
0
0
0
0
1
0
0
1
0
0
2
0
0
2
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
WNW
10
1.4
WNW
10
1.1
WNW
9
1
WNW
9
0.9
WNW
8
0.9
WNW
8
0.4
SW
14
0.4
SW
14
0.5
SW
14
0.5
SW
13
0.5
SW
13
0.4
SW
18
0.4
SSW
19
0.5
SSW
19
0.5
SSW
17
0.6
SSW
18
0.5
SSW
17
0.8
SSW
16
1.6
WNW
9
1.6
WNW
9
1.7
WNW
9
Wave Graph
Metric surfscale
Energy kJ
461
378
193
154
101
96
72
72
95
84
84
80
139
210
157
240
168
291
407
422
480
Wind (km/h)
10
SSW
10
WSW
5
ESE
10
S
10
WSW
5
SE
10
SSW
10
WSW
0
NNW
15
W
15
WNW
10
NNW
15
WNW
20
WNW
5
NNW
15
W
20
WNW
10
NW
15
WNW
20
WNW
5
NNW
Wind State
on
cross-on
glassy
cross-on
on
cross
cross-on
on
glassy
cross-on
cross-on
cross-off
cross-on
cross
cross-off
cross-on
cross
cross
cross
cross
cross-off
High Tide
2:38PM1.88m
2:41AM1.48m
3:14PM1.95m
4:05AM1.35m
3:57PM2.01m
5:55AM1.29m
4:51PM2.08m
7:43AM1.33m
5:53PM2.16m
8:55AM1.42m
6:57PM2.25m
9:44AM1.51m
7:58PM2.33m
Low Tide
9:06PM0.88m
8:25AM0.84m
10:17PM0.77m
9:00AM0.99m
11:33PM0.63m
9:46AM1.12m
00:46AM0.46m
10:54AM1.23m
1:50AM0.29m
12:19PM1.27m
2:45AM0.14m
1:37PM1.25m
3:35AM0.03m
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:16
6:16
6:16
6:18
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:12
8:10
8:09
8:08
8:07
8:07
 mm
Temp °C
16
18
15
17
18
16
18
19
16
18
19
17
20
20
17
19
19
17
17
18
15
Feels °C
15
17
15
16
17
16
18
19
16
17
17
16
18
18
15
17
17
15
15
15
12
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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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