Klamath Rivermouth Surf Break

Lat Long: 41.55° N 124.08° W

Klamath Rivermouth 48 hour detailed Surf Forecast

Issued: 4 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Klamath Rivermouth sea temperature is
15.1°C
1.5° 

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


How big are the waves at Klamath Rivermouth today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 2.5ft (0.7m), 17s period with SW swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.8m), 17s period with SW swell.
  • Evening surf: Evening surf (21 Sep, local time) - 2.5ft (0.8m), 17s period with SW swell.

The current surf forecast for Klamath Rivermouth at 11AM is: 0.7m 17s primary swell from a Southwest direction and 1.1m 6s secondary swell from a Northwest direction (forecast issued at 04:00am September 21). The wind direction is predicted to be onshore.

Time (PDT) & DateWave HeightWave Period
Morning (21 Sep)2.5ft (0.7m)17s
Afternoon (21 Sep)2.5ft (0.8m)17s
Evening (21 Sep)2.5ft (0.8m)17s

Table - waves today at Klamath Rivermouth. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 20°C on Wed afternoon, min 12°C on Mon morning). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
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
2
1
1
2
3
4
4
4
4
3
1
1
3
4
3
3
3
2
1
1
3
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)
0.7
SW
18
0.7
SW
18
0.7
SW
17
0.7
SW
17
0.8
SW
17
0.8
SW
17
0.8
SW
17
1.1
WNW
14
1.3
WNW
13
1.4
WNW
13
1.5
WNW
13
1.5
WNW
12
1.4
WNW
12
1.3
WNW
12
1.3
WNW
12
1.3
WNW
11
1.2
WNW
11
1.2
WNW
11
1.2
WNW
11
1.3
WNW
11
1.2
WNW
11
1.2
WNW
11
1.3
WNW
11
1.8
NW
11
Wave Graph
Metric surfscale
Energy kJ
316
312
309
309
354
350
350
487
624
679
745
677
557
469
461
431
353
346
340
387
340
340
408
799
Wind (km/h)
0
ESE
5
N
5
N
5
W
10
NW
10
NW
5
SE
5
ESE
5
E
0
NE
5
N
5
WNW
15
NW
15
NW
10
N
5
E
0
NNE
5
NNE
5
NNE
10
NW
10
NW
10
NW
5
NNE
5
SE
Wind State
glassy
glassy
glassy
on
cross-on
cross-on
cross-off
cross-off
glassy
glassy
glassy
cross-on
cross-on
cross-on
cross
off
glassy
glassy
glassy
cross-on
cross-on
cross-on
glassy
cross-off
High Tide
9:56AM2.02m
8:22PM2.28m
10:24AM2.12m
9:18PM2.35m
10:48AM2.23m
10:07PM2.41m
Low Tide
2:50AM0.73m
2:44PM1.61m
3:34AM0.67m
3:36PM1.46m
4:11AM0.63m
4:19PM1.28m
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:03
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:14
7:12
 mm
Temp °C
13
11
12
17
17
16
13
13
12
12
12
17
18
17
14
14
13
13
13
18
20
18
14
14
Feels °C
13
10
12
17
16
15
13
12
12
12
12
17
16
15
13
13
13
12
12
16
18
16
13
12
  • 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 Klamath Rivermouth 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