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Klamath Rivermouth Surf Forecast
/ CAL – Del Norte County (8 breaks) / California (404 breaks) /
Surf Forecasts:
Klamath Rivermouth surfForecast / CAL – Del Norte County / USA
48hr Weather and Surf, issued 4 am Wednesday 20 May 2026 PDTForecast 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
9.7° C
(Which is 2.2°C colder than average for this time of year)How big are the waves at Klamath Rivermouth today?
The current surf forecast for Klamath Rivermouth at 11AM is: 1.3m 12s primary swell from a West-northwest direction and 0.4m 21s secondary swell from a Southwest direction, 1.7m 8s secondary swell from a Northwest direction (forecast issued at 04:00am May 20). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 4.5ft (1.4m) | 12s |
| Afternoon (20 May) | 11ft (3.5m) | 8s |
| Evening (20 May) | 10ft (3.0m) | 9s |
Table - waves today at Klamath Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 10°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | ||||||||||||||||||||||
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 | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WNW 13 | WNW 13 | WNW 12 | WNW 12 | NW 8 | NW 8 | NW 9 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | |
692 | 710 | 540 | 452 | 1364 | 1732 | 1220 | 822 | 649 | 607 | 475 | 525 | 747 | 1242 | 1302 | 1143 | 911 | 835 | 835 | 702 | 962 | 1336 | 1182 | 861 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross | cross-on | cross-on | cross-on | cross | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-off | glassy | cross-on | cross-on | cross-on | glassy | cross-off | |
High Tide | 2:07AM2.90m | 4:24PM2.28m | 3:05AM2.71m | 5:23PM2.30m | 4:11AM2.49m | 6:20PM2.35m | ||||||||||||||||||
Low Tide | 9:26AM0.02m | 9:18PM1.52m | 10:22AM0.19m | 10:34PM1.51m | 11:19AM0.39m | |||||||||||||||||||
 | |  | | | | |  | | | | | | | | | | | | | | | | | |
 | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:32 | — | — | — | — | — | — | — | 8:34 | — | — | — | — | — | — | — | 8:35 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 12 | 15 | 18 | 19 | 16 | 13 | 12 | 12 | 12 | 16 | 19 | 19 | 18 | 15 | 13 | 12 | 12 | 16 | 18 | 19 | 17 | 13 | 12 |
12 | 11 | 14 | 15 | 14 | 12 | 11 | 11 | 11 | 11 | 15 | 17 | 17 | 16 | 15 | 13 | 11 | 10 | 15 | 16 | 16 | 14 | 12 | 10 | |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 7 | NW 8 | WNW 12 | SW 21 | SW 16 | WNW 11 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | WNW 11 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | SW 18 | NW 9 | NW 9 | NW 9 |
 kJ | 318 | 260 | 274 | 452 | 162 | 64 | 366 | 822 | 649 | 607 | 475 | 525 | 170 | 1242 | 1302 | 1143 | 911 | 835 | 835 | 702 | 109 | 1336 | 1182 | 861 |
Swell 2 Height (m) Direction Period (s) | WNW 13 | WNW 13 | WNW 12 | SW 21 | SW 16 | SW 21 | SW 16 | WNW 11 | SW 15 | SW 15 | WNW 11 | WNW 11 | SW 19 | SW 19 | SW 15 | SW 15 | SW 15 | SW 15 | SW 17 | SW 18 | SW 14 | SW 18 | SW 18 | SW 18 |
| kJ | 692 | 710 | 540 | 162 | 64 | 71 | 64 | 263 | 82 | 78 | 206 | 206 | 184 | 133 | 79 | 82 | 83 | 83 | 104 | 192 | 32 | 152 | 192 | 150 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 21 | SW 21 | SW 16 | SW 15 | SW 15 | SW 15 | SW 19 | SW 15 | SW 15 | SW 19 | SW 20 | — | — | — | — | SW 14 | SW 14 | — | — |
| kJ | 94 | 68 | 41 | 64 | 64 | 72 | 18 | 86 | 79 | 78 | 56 | 184 | 56 | 57 | 59 | 15 | — | — | — | — | 32 | 32 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 8 | NW 8 | NW 8 | NW 9 | — | — | — | — | — | NW 9 | — | — | — | — | — | — | — | NW 9 | — | — | — |
| kJ | — | — | — | 318 | 1364 | 1732 | 1220 | — | — | — | — | — | 747 | — | — | — | — | — | — | — | 962 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 16 | 354 | 541 | 403 | 222 | 0 | 0 | 0 | 0 | 354 | 403 | 169 | 23 | 0 | 0 | 0 | 0 | 307 | 171 | 169 | 23 | 0 |
Best forecast wave conditions in Del Norte County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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