Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 4 am 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.5°C
2.3° 

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


How big are the waves at Big River today (01 Sep):

  • Morning surf: Morning surf (01 Sep, local time) - 2.5ft (0.8m), 13s period with SSW swell.
  • Afternoon surf: Afternoon surf (01 Sep, local time) - 2.5ft (0.8m), 13s period with SSW swell.
  • Evening surf: Evening surf (01 Sep, local time) - 3.5ft (1.0m), 10s period with NW swell.

The current surf forecast for Big River at 12PM is: 0.8m 13s primary swell from a South-southwest direction and 0.6m 7s secondary swell from a Northwest direction (forecast issued at 04:00am September 01). The wind direction is predicted to be cross-onshore.

Time (PDT) & DateWave HeightWave Period
Morning (01 Sep)2.5ft (0.8m)13s
Afternoon (01 Sep)2.5ft (0.8m)13s
Evening (01 Sep)3.5ft (1.0m)10s

Table - waves today at Big River. (Swell directed towards the surf break)


Short Range Forecast

Moderate rain (total 13mm), heaviest on Wed night. Very mild (max 17°C on Wed morning, min 12°C on Thu night). Wind will be generally light.

Tuesday
1
Wednesday
2
Thursday
3
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)
2
2
1
1
0
0
0
2
2
2
1
0
0
0
0
0
0
1
2
2
3
3
4
4
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
13
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
1
NW
10
1
NW
10
0.7
SSW
13
0.7
SSW
13
0.6
SW
18
0.6
SW
18
0.9
WNW
9
0.9
WNW
9
1
WNW
8
1.3
W
8
1.5
W
8
1.7
W
8
1.7
WNW
9
1.7
WNW
10
1.9
WNW
10
2.1
NW
11
2.3
NW
12
2.4
NW
12
Wave Graph
Metric surfscale
Energy kJ
204
201
198
198
198
198
192
184
154
154
252
246
141
135
137
228
301
373
463
528
706
1084
1602
1638
Wind (km/h)
0
W
5
SSW
5
S
10
SSW
15
SSW
10
SW
10
S
10
E
15
ESE
10
ESE
10
SE
20
SSW
25
SSW
20
S
20
SSE
20
SSE
20
SSE
15
SSE
10
S
10
S
10
SW
5
SW
0
ENE
5
ENE
Wind State
glassy
glassy
cross-on
cross-on
on
on
cross-on
cross-off
cross-off
cross-off
cross
on
on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
on
on
glassy
glassy
High Tide
2:27AM1.39m
2:22PM1.79m
3:33AM1.25m
3:02PM1.82m
4:58AM1.15m
3:53PM1.82m
Low Tide
7:55AM0.51m
9:11PM0.20m
8:31AM0.67m
10:17PM0.14m
9:15AM0.82m
cloud
cloud
cloud
cloud
cloud
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
rain showers
rain showers
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:43
6:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:44
7:43
 mm
1
1
1
5
2
1
1
1
Temp °C
15
16
16
16
16
16
14
14
14
15
15
17
16
15
15
15
15
15
15
15
15
15
13
13
Feels °C
16
17
16
15
14
14
13
13
12
13
14
14
12
12
12
12
13
14
15
15
14
15
14
13
  • 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 

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