Klamath Rivermouth surfForecast / CAL – Del Norte County / USA

information circle12 Day Weather and Surf, issued 3 pm Sunday 28 Dec 2025 PST
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
12.1° C
(Which is 1.1°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 Sunday (Dec 28) at 7PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.2m and 14s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Klamath Rivermouth in the next 12 days are 4.5m 11s and forecast to arrive on Friday (Jan 02) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Jan 04) at 10PM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sun 28th Dec)4.5ft (1.4m) 9s
Best Surf 4PM (Fri 2nd Jan)11ft (3.5m) 9s
Most Powerful 7PM (Fri 2nd Jan)15ft (4.5m) 11s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 15°C on Wed morning, min 6°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 43mm), heaviest during Fri afternoon. Very mild (max 13°C on Wed afternoon, min 9°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the S by Sat morning).

Sun
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
2
2
2
3
3
3
3
3
3
2
3
3
3
3
3
!
!
!
0
1
2
Swell
Height Map
Wave Height (m) & direction (?)
1.4
NW
1.3
NW
1
WNW
1.5
WNW
1.5
WNW
1.6
W
1.6
W
1.6
W
1.5
W
1.6
W
1.6
W
1.5
W
1.5
W
1.3
W
1.4
SSW
3.5
SSW
3.5
WSW
3
WNW
3.5
WNW
2.5
WNW
2
WNW
Period(s) (?)98141312131312121112121111891012121110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)32521937372263490586272659463067559654639623816232708267732461724742
Wind
(km/h)
5
NNE
10
E
5
ESE
5
N
10
E
5
E
0
NNE
5
E
5
SE
10
S
0
NE
5
SSE
10
SSE
5
SE
5
SE
30
S
10
SE
25
SSE
35
SSW
20
SSW
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
glassoffglassglassoffcross-
off
crossglassglasscross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
on
cross-
on
cross-
off
High Tide
/ height (m)
6:09PM
1.83
6:09AM
2.67
7:42PM
1.86
6:59AM
2.79
9:01PM
1.96
7:52AM
2.90
10:06PM
2.08
8:46AM
3.01
11:01PM
2.18
9:40AM
3.08
11:50PM
2.27
10:33AM
3.10
12:36AM
2.33
11:25AM
3.04
Low Tide
/ height (m)
11:24PM
1.17
1:25PM
0.67
12:25AM
1.33
2:24PM
0.39
1:30AM
1.44
3:19PM
0.14
2:35AM
1.49
4:11PM
-0.04
3:36AM
1.48
5:02PM
-0.15
4:33AM
1.44
5:50PM
-0.18
5:29AM
1.39
Sun
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunrise--7:41--7:41--7:41--7:41--7:43--7:43--7:43
Sunset4:52--4:53--4:54--4:54--4:55--4:57--4:58--
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
cloud
mod rain
mod rain
light rain
part cloud
light rain
mod rain
mod rain
rain showers
heavy rain
mod rain
part cloud
Rain (mm)
----------675-57941910-
Temp. °C1281311913131115131112121212121010101012
Feels °C (?)10410961112813111012111011684355
  • 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 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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