Klamath Rivermouth surfForecast / CAL – Del Norte County / USA

information circle12 Day Weather and Surf, issued 9 pm Thursday 01 Jan 2026 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
11.8° C
(Which is slightly warmer than usual)


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 Friday (Jan 02) at 4AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 1.1m and 7s. 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 3.5m 16s and forecast to arrive on Thursday (Jan 08) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Jan 05) at 10AM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 2nd Jan)3.5ft (1.1m) 10s
Best Surf 1PM (Sat 3rd Jan)10ft (3.0m) 10s
Most Powerful 7AM (Thu 8th Jan)11ft (3.5m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 89mm), heaviest during Sat night. Very mild (max 16°C on Fri morning, min 9°C on Sun morning). Mainly strong winds.

Days 3-6 Weather Summary Heavy rain (total 30mm), heaviest during Mon morning. Very mild (max 10°C on Sun night, min 6°C on Tue night). Wind will be generally light.

Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thu
08
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
2
3
4
2
!
!
4
4
3
2
3
3
2
3
2
4
2
!
!
!
Swell
Height Map
Wave Height (m) & direction (?)
1.2
W
0.8
WNW
1.8
SSW
2.5
SW
2.3
SSW
3.5
SSW
4
SW
2.3
SW
1.7
WNW
1.7
SW
1.6
WNW
1.7
WNW
1.7
WNW
1.8
WNW
1.7
WNW
1.4
WNW
1.9
WNW
1.3
WNW
3
WNW
3.5
WNW
3.5
WNW
Period(s) (?)111391191111101191111121111101019171616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)33220450815929433171372011206384496316677417186193926651222520959605592
Wind
(km/h)
10
SE
10
ESE
10
SE
15
SE
25
SSE
35
SSE
30
S
15
SSE
10
ESE
15
SSE
10
N
5
NE
5
N
5
NW
0
SE
10
SE
0
ENE
10
SW
15
NW
5
ESE
10
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
crosscross-
off
glasscross-
on
glasscross-
off
glasscross-
on
cross-
on
glasscross
High Tide
/ height (m)
11:01PM
2.18
9:40AM
3.08
11:50PM
2.27
10:33AM
3.10
12:36AM
2.33
11:25AM
3.04
1:20AM
2.38
12:16PM
2.92
2:03AM
2.42
1:07PM
2.72
2:45AM
2.46
1:59PM
2.47
3:26AM
2.47
2:56PM
2.21
Low Tide
/ height (m)
3:36AM
1.48
5:02PM
-0.15
4:33AM
1.44
5:50PM
-0.18
5:29AM
1.39
6:36PM
-0.12
6:24AM
1.34
7:20PM
0.02
7:21AM
1.30
8:02PM
0.22
8:19AM
1.26
8:41PM
0.46
9:22AM
1.21
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thu
08
Sunrise-7:43--7:43--7:43--7:43--7:41--7:41--7:41-
Sunset--4:57--4:58--4:59--5:00--5:00--5:01--5:02
light rain
cloud
cloud
rain showers
part cloud
light rain
heavy rain
heavy rain
light rain
mod rain
heavy rain
light rain
part cloud
cloud
cloud
light rain
part cloud
light rain
mod rain
part cloud
part cloud
Rain (mm)
2--14-4511356132---5-47--
Temp. °C141615121514121091088898797798
Feels °C (?)1315131097476756577564475
  • 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

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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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