40th Street Surf Break

Lat Long: 33.62° N 117.94° W

40th Street 48 hour detailed Surf Forecast

Issued: 4 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's 40th Street sea temperature is
23.6°C
4.4° 

40th Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at 40th Street today (18 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 2ft (0.6m), 19s period with SW swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 2ft (0.6m), 19s period with SW swell.
  • Evening surf: Evening surf (18 Sep, local time) - 2ft (0.6m), 19s period with SW swell.

The current surf forecast for 40th Street at 11AM is: 0.6m 19s primary swell from a Southwest direction and 0.6m 14s secondary swell from a South-southwest direction (forecast issued at 04:00am September 18). The wind direction is predicted to be onshore.

Time (PDT) & DateWave HeightWave Period
Morning (18 Sep)2ft (0.6m)19s
Afternoon (18 Sep)2ft (0.6m)19s
Evening (18 Sep)2ft (0.6m)19s

Table - waves today at 40th Street. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 22°C on Sat afternoon, min 19°C on Fri morning). Wind will be generally light.

Friday
18
Saturday
19
Sunday
20
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
15
0.5
SW
20
0.6
SW
19
0.6
SW
19
0.6
SW
19
0.6
SW
19
0.6
SW
19
0.5
SW
19
0.5
SW
19
0.5
SW
19
0.6
SW
18
0.6
SW
18
0.6
SW
18
0.6
SW
18
0.6
SW
18
0.6
SW
18
0.6
SW
18
0.6
SW
18
0.6
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
17
Wave Graph
Metric surfscale
Energy kJ
242
218
236
236
236
236
236
184
183
171
258
255
252
252
252
252
252
255
255
375
379
375
370
362
Wind (km/h)
5
WSW
5
WSW
5
WSW
10
SW
15
WSW
15
WSW
10
WSW
5
SW
5
S
5
S
5
SSE
10
SSW
10
SW
10
WSW
10
WSW
5
SW
5
SW
5
SW
5
SSW
10
S
15
SW
10
SW
10
SSW
5
SW
Wind State
cross-on
cross-on
glassy
on
on
cross-on
cross-on
on
cross-on
cross-on
cross
cross-on
on
on
on
on
glassy
on
glassy
cross-on
on
on
cross-on
on
High Tide
2:28PM1.31m
8:11AM1.08m
4:26PM1.31m
7:53AM1.14m
5:42PM1.40m
Low Tide
11:41PM0.31m
10:43AM1.06m
00:38AM0.22m
12:12PM0.96m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:37
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:52
6:51
 mm
Temp °C
20
20
19
20
21
21
21
20
20
20
20
21
22
22
22
21
20
20
20
21
22
21
20
20
Feels °C
21
21
20
20
21
20
21
21
22
21
21
22
22
22
23
22
22
22
22
22
22
21
20
21
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our 40th Street surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest