4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile Surf Forecast and Surf Report

Issued: 4 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
16.2° C
1.5° 

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 17 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 11PM (local time) - 2.5ft (0.8m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 18 Aug, 5PM (local time) - 3ft (0.9m), 16s period, SSW swell with 366 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 2.5ft (0.8m), 14s 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 Monday (Aug 17) at 11PM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.7m and 9s. Another secondary swell of 0.9m and 6s 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 0.9m 16s and forecast to arrive on Tuesday (Aug 18) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 17th Aug)2.5ft (0.8m) 14s
Best Surf11PM (Tue 18th Aug)2.5ft (0.8m) 16s
Most Powerful 5PM (Tue 18th Aug)3ft (0.9m) 16s

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


The Lowdown

G'day, Rusty here. Look, I'm gonna level with ya. The next couple of weeks are looking pretty grim for 4 Mile. It's an advanced point break that faces west, but the swell energy coming through just isn't stacking up with the wind. We're in for a long dry spell, with no real good surf on offer for the first week.

Monday the 17th, we've got a weak 3ft swell from the SSW, but it's got some real grunt in the water with moderate wave energy (402). The problem is the wind is cross-shore, and it's just making things messy. That pretty much sets the tone for the rest of the week. Tuesday and Wednesday are more of the same, with small swell and cross-shore winds keeping things choppy. The wave energy is all over the shop, from 337 up to 520, but it's all for nothing with the conditions. By Thursday and into the weekend, we're looking at tiny 2ft to 3ft waves, and the period drops right off to 8-9 seconds, meaning no power at all. It's just a frustrating wait.

We have a bit of hope towards the end of next week. Friday the 29th of August and into the weekend, the swell from the SSW starts to pump a bit more, with the combined energy jumping up into the strong range (769 and 899). The wave height creeps up to around 4ft and the period is a nice long 16 seconds, which is proper groundswell. That's the kind of energy that can wrap beautifully around a point break like 4 Mile, but the wind is still a cross-onshore, which will put a bit of a bump on the face. It's frustrating, but that's the best we've got.

The standout window, if you can call it that, is Monday the 31st of August. The combined swell energy hits a strong 1242, with a 4ft SSW swell and that same long 16-second period. The wind is light and cross-onshore from the west, which is about as good as it gets for this stretch. It'll be a bit lumpy, but for an advanced crew, there'll be some long, grinding walls if you can dodge the wind bumps. Keep in mind, this spot sees crowds often, and with a long period swell like this, the sets will be few and far between but worth the paddle. The water temp is about average for the time of year.

After that, the first of September is a letdown again, with a smaller, shorter-period swell. It looks like the run of poor conditions is the new normal for a bit. If you're really itching, those last few days of August are your only real shot, but don't expect perfection.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue afternoon, min 13°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Thu afternoon, min 15°C on Fri night). Wind will be generally light.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
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
1
1
2
0
1
2
0
0
3
0
0
3
0
0
1
2
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
15
0.9
SSW
15
0.8
SSW
14
0.9
SSW
15
0.9
SSW
16
0.7
SSW
14
0.9
SSW
15
0.9
SSW
15
0.8
SSW
15
0.6
SSW
14
0.7
SSW
14
0.7
SSW
14
0.4
SW
18
1.4
WNW
8
1.5
NW
8
1.4
NW
8
1
WNW
8
1
WNW
8
1.2
NW
8
1
WNW
9
0.5
SW
18
Wave Graph
Metric surfscale
Energy kJ
334
334
236
322
366
163
305
322
256
156
183
183
105
273
275
221
140
125
196
154
157
Wind (km/h)
5
W
20
WNW
5
N
15
WNW
20
WNW
10
NW
10
WNW
20
NW
10
NNW
20
WNW
20
NW
10
NNW
20
WNW
25
NW
15
NNW
20
WNW
25
NW
10
NW
15
WNW
20
WNW
5
NNW
Wind State
cross-on
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross
cross-off
High Tide
2:35PM1.97m
3:30AM1.43m
3:15PM1.94m
5:05AM1.33m
4:02PM1.90m
7:01AM1.33m
4:57PM1.88m
8:32AM1.39m
5:58PM1.89m
9:19AM1.45m
6:56PM1.93m
9:50AM1.50m
7:47PM1.98m
Low Tide
8:02AM0.81m
9:30PM0.70m
8:35AM1.00m
10:40PM0.68m
9:12AM1.15m
11:53PM0.64m
10:03AM1.27m
1:01AM0.58m
11:22AM1.34m
1:57AM0.51m
12:43PM1.34m
2:43AM0.43m
1:43PM1.31m
3:21AM0.36m
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:28
6:28
6:30
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:55
7:54
7:53
7:52
7:51
7:50
 mm
Temp °C
17
18
15
18
20
16
19
19
18
20
21
18
20
21
18
19
21
18
19
19
16
Feels °C
17
16
13
16
18
13
18
17
17
18
18
16
18
18
15
16
17
15
17
16
14
  • 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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