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Surf Forecasts:

Klamath Rivermouth surfForecast / CAL – Del Norte County / USA

information circle12 Day Weather and Surf, issued 10 pm Friday 12 Sep 2025 PDT
Forecast update in hr  min  s Forecast update imminent
Klamath Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Klamath Rivermouth sea temperature is
15.0° C
 (Which is 1.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Klamath Rivermouth this week:

The surf forecast for Klamath Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 13) at 5AM. The primary swell is predicted to be 1.6m and 13s period with a secondary swell of 0.6m and 15s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Klamath Rivermouth in the next 12 days are 3.5m 10s and forecast to arrive on Thursday (Sep 18) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sat 13th Sep)5ft (1.6m) 13s
Best Surf 5PM (Thu 18th Sep)10ft (3.0m) 10s
Most Powerful 8PM (Thu 18th Sep)11ft (3.5m) 10s

Table - best surf conditions forecast for Klamath Rivermouth over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 3mm), mostly falling on Sat night. Warm (max 22°C on Mon morning, min 13°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Tue morning, min 15°C on Tue night). Wind will be generally light.

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Fri
19
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
2
3
3
2
1
2
1
1
2
0
2
2
1
1
4
1
!
4
2
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
WNW
1.5
WNW
1.4
WNW
1.3
WNW
1.5
WNW
1.5
WNW
1.6
NW
1.2
NW
1.3
NW
1.3
NW
0.5
WNW
0.9
WNW
1.1
WNW
0.6
SW
1.7
NW
2.5
NW
2.3
NW
3
NW
2.4
NW
2
NW
1.8
NW
Period(s) (?)131212111187778121110167991010109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)89267756639451227028914716517983173232163253103489117931070697519
Wind
(km/h)
5
S
5
SW
5
WSW
10
SSE
5
SW
15
NW
5
E
10
NW
10
NW
5
SE
5
WSW
5
WNW
5
NE
10
NW
15
NNW
5
NE
15
NW
20
NNW
5
ENE
10
WNW
5
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on		glasscross-
off		cross-
on		cross-
on		offcross-
on		cross-
on		cross-
off		onglassglasscross-
on		cross-
on		glasscross-
on		cross-
on		glasscross-
on		glass
High Tide
/ height (m)
5:04AM
2.01
4:11PM
2.69
6:34AM
1.94
5:16PM
2.59
8:06AM
1.97
6:33PM
2.52
9:16AM
2.07
7:52PM
2.50
10:06AM
2.17
9:01PM
2.52
10:44AM
2.28
10:00PM
2.55
11:16AM
2.38
Low Tide
/ height (m)
10:29PM
0.42
9:53AM
1.41
11:40PM
0.47
10:59AM
1.56
12:57AM
0.49
12:27PM
1.63
2:10AM
0.48
1:59PM
1.59
3:13AM
0.45
3:12PM
1.46
4:03AM
0.44
4:09PM
1.29
4:46AM
0.46
4:56PM
1.11
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Fri
19
Sunrise-6:54--6:54--6:56--6:56--6:58--6:58--7:00-
Sunset--7:29--7:27--7:25--7:23--7:22--7:21--7:19
clear
clear
clear
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---3-----------------
Temp. °C131819161920152221172322172021172223192423
Feels °C (?)131819162020152120162221171819162020182222
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Eyeball surf reportRecent Eyeball Surf Reports for CAL - Del Norte County

  1. weather stationWind Update Continuing clean conditions at Klamath Rivermouth (calm at BUOY-CECC1 24 km from Klamath Rivermouth). 1.6m 13s groundswell from the WNW with a 0.4m 14s groundswell from the SW. 2 swells combining to make bigger set waves.

    1 hour 32 minutes ago Klamath Rivermouth
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24 km away, 1 h 32 min ago

5 km/h
SSE
0.0
15.0
Air / Water (°C)
Please reload the page to see if there are any updates.

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.

View detailed surf forecast for Klamath Rivermouth at:
surf-forecast.com

Information about the Klamath Rivermouth Surf forecast

The above surf forecast table for Klamath Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Klamath Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Klamath Rivermouth 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 (Klamath Rivermouth) 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 Klamath Rivermouth 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.

Klamath Rivermouth is 67 km (42 miles) from McKinleyville. If you plan a vacation in Del Norte County, look for hotels and other accommodation in McKinleyville. McKinleyville has rooms for a wide range of budgets as well as car hire and transport links.

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