Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Third Reef 48 hour detailed Surf Forecast

Issued: 4 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
13.6° C
0.7° 

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 (17 Aug):

  • Morning surf: Morning surf (17 Aug, local time) - 3ft (0.9m), 14s period with SSW swell.
  • Afternoon surf: Afternoon surf (17 Aug, local time) - 3ft (0.9m), 15s period with SSW swell.
  • Evening surf: Evening surf (17 Aug, local time) - 3ft (0.9m), 15s period with SSW swell.

The current surf forecast for Third Reef at 11AM is: 0.9m 14s primary swell from a South-southwest direction and 0.8m 7s secondary swell from a Northwest direction (forecast issued at 04:00am August 17). The wind direction is predicted to be glassy and the swell rating is 2.

Time (PDT) & DateWave HeightWave Period
Morning (17 Aug)3ft (0.9m)14s
Afternoon (17 Aug)3ft (0.9m)15s
Evening (17 Aug)3ft (0.9m)15s

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


Short Range Forecast

Mostly dry. Very mild (max 18°C on Wed night, min 14°C on Mon night). Wind will be generally light.

Monday
17
Tuesday
18
Wednesday
19
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)
1
3
2
2
1
1
2
1
2
1
3
0
1
3
2
2
2
2
2
0
0
1
2
3
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)
0.9
SSW
15
0.9
SSW
14
0.9
SSW
14
0.9
SSW
14
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.8
SSW
15
1.5
NW
7
0.7
SSW
14
0.8
SSW
14
0.8
SSW
15
0.9
SSW
16
0.9
SSW
16
0.8
SSW
16
0.8
SSW
16
1.9
NW
8
0.8
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
Wave Graph
Metric surfscale
Energy kJ
334
330
330
330
334
334
334
334
334
272
206
178
239
252
362
402
291
288
392
270
305
305
309
314
Wind (km/h)
5
N
5
NNW
0
SW
5
W
10
NW
5
NW
0
SSW
5
NNW
10
N
10
N
5
N
15
WNW
15
NW
5
W
5
NNW
10
N
15
N
10
NNE
10
N
20
NW
20
WNW
15
NW
10
N
10
NNE
Wind State
cross
glassy
glassy
glassy
cross-on
cross-on
glassy
cross
cross
cross
glassy
cross-on
cross-on
glassy
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross-off
High Tide
3:06AM1.52m
3:22PM1.81m
4:06AM1.35m
3:58PM1.78m
5:19AM1.21m
4:39PM1.74m
Low Tide
8:57AM0.45m
10:03PM0.35m
9:32AM0.66m
11:05PM0.34m
10:11AM0.83m
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:30
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:08
8:07
 mm
Temp °C
15
16
15
15
16
15
14
14
15
14
15
16
15
16
15
15
14
14
16
17
17
17
18
15
Feels °C
15
16
15
15
15
15
15
14
14
12
15
14
13
16
15
14
12
12
15
14
14
15
17
14
  • 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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