Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Third Reef 48 hour detailed Surf Forecast

Issued: 10 pm 19 Sep 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
15.1°C
0.9° 

Third Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Third Reef today (20 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 2.5ft (0.8m), 18s period with SW swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 2.5ft (0.8m), 18s period with SW swell.
  • Evening surf: Evening surf (20 Sep, local time) - 3ft (0.9m), 18s period with SW swell.

The current surf forecast for Third Reef at 4AM is: 0.8m 18s primary swell from a Southwest direction and 0.4m 13s secondary swell from a South-southwest direction, 0.8m 5s secondary swell from a Northwest direction (forecast issued at 10:00pm September 19). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (PDT) & DateWave HeightWave Period
Morning (20 Sep)2.5ft (0.8m)18s
Afternoon (20 Sep)2.5ft (0.8m)18s
Evening (20 Sep)3ft (0.9m)18s

Table - waves today at Third Reef. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 21°C on Tue afternoon, min 12°C on Sat night). Winds increasing (light winds from the NNE on Sat night, fresh winds from the NNW by Tue afternoon).

Sat
19
Sunday
20
Monday
21
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)
2
2
2
2
1
1
0
1
2
3
3
3
3
1
0
0
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.9
SW
19
0.9
SW
19
0.9
SW
18
0.9
SW
18
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
17
0.9
SW
17
Wave Graph
Metric surfscale
Energy kJ
375
370
375
375
379
383
383
502
577
522
510
505
499
493
482
482
487
482
Wind (km/h)
10
NNE
10
NNE
15
NNE
15
NNE
10
N
15
NW
15
NW
10
NW
10
NNW
10
NNE
15
NNE
15
NNE
10
NNE
15
NW
20
NW
20
NW
15
N
15
N
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross
cross
High Tide
5:35PM1.58m
9:00AM1.27m
6:53PM1.58m
9:34AM1.34m
8:01PM1.62m
Low Tide
1:32AM0.25m
1:01PM1.09m
2:28AM0.21m
2:13PM1.00m
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:15
 mm
Temp °C
15
12
12
12
12
16
15
16
15
13
12
12
12
17
16
17
16
13
Feels °C
15
11
10
10
10
14
13
15
14
12
10
10
10
15
13
14
14
10
  • 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 Third Reef 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.


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