Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River Surf Forecast and Surf Report

Issued: 10 pm 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
13.3° C
0.2° 

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


Big River surf forecast from 22 Jul 2026:

  • Best quality surf: Saturday 25 Jul, 8AM (local time) - 3.5ft (1.1m), 21s period, SW swell with cross-offshore winds.
  • Most powerful swell: Saturday 25 Jul, 11AM (local time) - 4ft (1.2m), 21s period, SSW swell with 1,221 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 8PM (local time) - 2.5ft (0.8m), 14s period with SSW swell.

Best Forecast Surf Conditions for Big River this week:

The surf forecast for Big River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 22) at 8PM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 1.2m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big River in the next 16 days are 1.2m 21s and forecast to arrive on Saturday (Jul 25) at 11AM. 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+) 8PM (Wed 22nd Jul)2.5ft (0.8m) 14s
Best Surf 8AM (Sat 25th Jul)3.5ft (1.1m) 21s
Most Powerful11AM (Sat 25th Jul)4ft (1.2m) 21s

Table - best surf conditions forecast for Big River over the next 16 days.


Short Range Forecast

Mostly dry. Very mild (max 18°C on Tue night, min 12°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Sat afternoon, min 12°C on Fri night). Wind will be generally light.

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
2
1
2
2
2
2
3
2
2
3
2
3
3
1
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
S
12
1.6
S
10
1.4
S
9
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SW
24
0.9
SW
24
0.7
SW
23
1.2
SSW
21
1
SW
21
1.1
SW
20
1.2
SW
19
1.1
SW
19
1
SW
18
1.2
SSW
18
1.3
SSW
19
0.9
SSW
16
Wave Graph
Metric surfscale
Energy kJ
403
500
311
250
261
229
210
568
801
544
1221
890
872
1100
855
614
845
1153
469
Wind (km/h)
5
SE
25
SSW
15
SW
5
NNE
15
NW
15
NNW
5
NNE
15
NW
20
NNW
10
N
15
NW
20
NNW
5
N
20
NW
25
NW
10
NNW
20
NW
20
NW
15
NNW
Wind State
cross
cross-on
on
glassy
cross
cross-off
off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
cross-off
High Tide
7:20AM1.02m
6:30PM1.69m
9:00AM1.05m
7:18PM1.70m
10:11AM1.12m
8:07PM1.73m
10:58AM1.17m
8:53PM1.76m
11:33AM1.22m
9:37PM1.80m
12:02PM1.26m
10:17PM1.84m
Low Tide
00:57AM0.31m
11:35AM0.76m
2:02AM0.20m
12:33PM0.88m
2:57AM0.10m
1:37PM0.95m
3:44AM0.02m
2:36PM0.96m
4:25AM-0.05m
3:26PM0.94m
5:01AM-0.09m
4:09PM0.91m
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:07
6:07
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:36
8:35
8:34
8:34
8:32
8:31
 mm
Temp °C
18
18
16
14
14
15
13
15
16
13
15
16
13
14
15
14
14
14
13
Feels °C
17
16
12
15
12
13
11
13
14
11
12
13
11
11
11
11
11
10
10
  • 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 Big River Surf forecast

The above surf forecast table for Big River provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big River can be found by selecting the local surf guide option on the grey menu. Our Big River 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 (Big River) 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 Big River 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.

Big River is 54 km (34 miles) from Ukiah. If you plan a vacation in Mendocino County, look for hotels and other accommodation in Ukiah. Ukiah has rooms for a wide range of budgets as well as car hire and transport links.

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