Klamath Rivermouth Surf Break

Lat Long: 41.55° N 124.08° W

Klamath Rivermouth 48 hour detailed Surf Forecast

Issued: 10 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Klamath Rivermouth sea temperature is
13.9° C
0.1° 

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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 2.5ft (0.8m), 12s period with WNW swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 2.5ft (0.8m), 12s period with WNW swell.
  • Evening surf: Evening surf (19 Aug, local time) - 3ft (0.9m), 11s period with WNW swell.

The current surf forecast for Klamath Rivermouth at 3AM is: 0.6m 16s primary swell from a Southwest direction and 1.4m 7s secondary swell from a Northwest direction, 0.7m 13s secondary swell from a West direction (forecast issued at 10:00pm August 18). The wind direction is predicted to be glassy and the swell rating is 3.

Time (PDT) & DateWave HeightWave Period
Morning (19 Aug)2.5ft (0.8m)12s
Afternoon (19 Aug)2.5ft (0.8m)12s
Evening (19 Aug)3ft (0.9m)11s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Wed morning, min 13°C on Tue night). Wind will be generally light.

Tue
18
Wednesday
19
Thursday
20
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
3
3
3
1
2
1
3
3
2
2
2
1
0
0
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
NW
7
1.5
NW
7
1.4
NW
7
1.4
NW
7
0.6
SW
16
0.8
WNW
12
0.8
WNW
12
1.3
NW
7
0.9
WNW
11
0.9
WNW
12
0.9
WNW
12
0.9
WNW
12
0.9
WNW
11
0.9
WNW
11
0.9
WNW
11
0.9
WNW
11
0.8
WNW
11
0.8
WNW
11
Wave Graph
Metric surfscale
Energy kJ
176
200
206
206
203
198
189
173
217
224
224
224
217
205
198
194
153
153
Wind (km/h)
0
SW
5
SE
0
S
0
NW
5
W
5
W
10
WNW
10
NW
0
NW
5
SSE
5
SSE
5
ENE
5
NW
10
WNW
10
NW
10
NW
5
NNW
0
SSW
Wind State
glassy
cross-off
glassy
glassy
glassy
on
on
cross-on
glassy
glassy
glassy
glassy
glassy
on
cross-on
cross-on
glassy
glassy
High Tide
5:36AM1.85m
4:57PM2.45m
7:07AM1.77m
5:48PM2.38m
Low Tide
11:19PM0.82m
10:27AM1.38m
00:25AM0.83m
11:14AM1.55m
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:10
8:09
8:07
 mm
Temp °C
14
14
13
14
16
20
20
19
14
13
13
13
15
18
19
18
14
14
Feels °C
15
13
13
14
16
20
20
18
15
13
13
13
15
17
18
17
14
15
  • 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.


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