4 Mile Surf Break

Lat Long: 36.99° N 122.16° W

4 Mile Surf Forecast and Surf Report

Issued: 4 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's 4 Mile sea temperature is
15.5°C
0.5° 

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 10 Sep 2026:

  • Best quality surf: Friday 11 Sep, 2AM (local time) - 3ft (0.9m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Monday 14 Sep, 2PM (local time) - 6.5ft (2.0m), 9s period, WNW swell with 651 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 11PM (local time) - 2.5ft (0.7m), 18s 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 09) at 11PM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.5m and 9s. Another secondary swell of 0.7m and 4s is also forecast. 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 2.0m 9s and forecast to arrive on Monday (Sep 14) at 2PM. 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 (Wed 9th Sep)2.5ft (0.7m) 18s
Best Surf 2AM (Fri 11th Sep)3ft (0.9m) 16s
Most Powerful 2PM (Mon 14th Sep)6.5ft (2.0m) 9s

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


The Lowdown

Alright, Rusty here, and I gotta level with you. Lookin’ at this 16-day stretch, it’s a pretty grim picture for a wave. We got a whole lotta flat, messy days ahead, and when a little bump appears, the wind’s just all wrong. The water temp is 60°F, which is normal for this time of year, but that’s about the only thing that’s normal.

We kick it off on Wednesday the 9th, and straight away it’s a bust. For a solid week and a half, right up until the 20th of September, it’s all tiny SSW swell, from about 2ft to 3ft. The energy is moderate, but the wind is just a constant issue – cross-shore or bumpy cross-onshore. It’s just a frustrating, bumpy mess. Don’t even think about a real surf; you’ll just be fighting the chop.

There is one little pulse on the morning of Sunday the 20th. A little NW swell hits 6ft, but it’s short period and the wind is still cross. The energy jumps up solidly, and the score improves a tiny bit, but it’s still a choppy affair. It’s a tease.

The only real chance, and I mean the *only* chance for a wave you can actually ride, comes on the morning of Monday the 21st of September. The wind goes onshore from the SW, and we’ve got a little 2ft SSW swell. The call is "marginal" instead of "poor," so if you’ve got a log and zero standards, you might find a little mushy close-out. After that, it’s back to tiny surf and cross-onshore wind for the rest of the week through the 24th.

No standouts here. This is a sorry run for 4 Mile (Costa Rica). Honestly, it looks more interesting for a kite surfer than a surfer right now. Sometimes the ocean just says “nope.” It might change, but for now, save your energy.

Rusty

Short Range Forecast

Mostly dry. Warm (max 31°C on Wed afternoon, min 15°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Sun afternoon, min 13°C on Sat night). Winds decreasing (fresh winds from the NW on Sat afternoon, calm by Mon morning).

Wed
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
1
1
3
0
1
3
0
0
1
0
0
2
1
1
3
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)
0.7
SSW
19
0.7
SSW
17
0.8
SSW
17
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
1.4
NW
7
0.6
SSW
13
1.4
WNW
7
1.3
WNW
8
1.4
WNW
9
1.6
WNW
9
1.9
NW
8
1.3
WNW
8
1.1
WNW
8
0.9
WNW
8
Wave Graph
Metric surfscale
Energy kJ
309
267
368
432
430
425
403
309
301
211
168
124
191
234
326
381
490
228
161
94
Wind (km/h)
20
NW
5
NNW
15
WNW
20
NW
10
NNW
20
WNW
25
NW
15
NNW
20
WNW
35
NW
20
NNW
10
WNW
30
NW
5
N
10
WNW
25
NW
10
NNW
10
W
20
WNW
10
N
Wind State
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross-off
cross-on
cross
cross-off
cross-on
cross
cross-off
High Tide
9:47PM2.16m
10:54AM1.92m
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
Low Tide
3:48PM0.88m
4:30AM0.25m
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
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>
6:46
6:47
6:48
6:48
6:48
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:24
7:23
7:22
7:21
7:19
7:17
7:15
 mm
Temp °C
31
29
25
26
21
18
21
18
18
20
16
17
21
16
19
19
15
16
17
14
Feels °C
28
27
22
22
19
16
18
15
14
15
12
15
16
13
18
16
12
15
15
12
  • 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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