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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 Monday 18 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
11.0° C
(Which is slightly cooler than normal)How big are the waves at Klamath Rivermouth today?
The current surf forecast for Klamath Rivermouth at 11AM is: 1.6m 8s primary swell from a Northwest direction and 0.4m 18s secondary swell from a West-northwest direction (forecast issued at 04:00am May 18). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.6m) | 8s |
| Afternoon (18 May) | 7ft (2.2m) | 8s |
| Evening (18 May) | 10ft (3.0m) | 8s |
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 18°C on Tue morning, min 11°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | WNW 16 | WNW 15 | WNW 14 | WNW 14 | WNW 14 | NW 13 | NW 7 | NW 8 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | NW 8 | NW 8 | NW 9 | NW 9 | |
527 | 456 | 390 | 314 | 413 | 1107 | 1165 | 789 | 784 | 2082 | 1933 | 1797 | 2722 | 1048 | 637 | 703 | 816 | 710 | 566 | 452 | 1195 | 1667 | 1187 | 910 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | glassy | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | glassy | |
High Tide | 00:23AM3.08m | 2:27PM2.31m | 1:13AM3.02m | 3:25PM2.29m | 2:07AM2.90m | 4:24PM2.28m | ||||||||||||||||||
Low Tide | 7:39AM-0.16m | 7:16PM1.44m | 8:32AM-0.11m | 8:13PM1.49m | 9:26AM0.02m | 9:18PM1.52m | ||||||||||||||||||
 | |  | | | | | | | | | | | | |  | | | | | | | | | |
 | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:31 | — | — | — | — | — | — | — | 8:32 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 9 | 13 | 17 | 17 | 17 | 14 | 13 | 12 | 11 | 14 | 18 | 18 | 17 | 14 | 13 | 12 | 11 | 14 | 16 | 18 | 17 | 14 | 13 |
6 | 6 | 11 | 13 | 12 | 13 | 10 | 10 | 9 | 8 | 12 | 14 | 13 | 13 | 12 | 12 | 11 | 9 | 12 | 12 | 13 | 13 | 11 | 12 | |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | NW 8 | WNW 18 | WNW 16 | WNW 16 | NW 8 | NW 8 | WNW 14 | WNW 14 | WNW 14 | SW 16 | SW 16 | WNW 13 | NW 8 | NW 7 | NW 7 | NW 8 | WNW 12 | SW 21 | SW 16 | WNW 11 | NW 9 |
 kJ | 527 | 456 | 390 | 314 | 176 | 298 | 452 | 789 | 435 | 2082 | 1933 | 1797 | 42 | 67 | 613 | 464 | 301 | 285 | 345 | 452 | 162 | 64 | 415 | 910 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | WNW 18 | WNW 14 | SW 16 | SW 16 | WNW 16 | WNW 15 | SW 17 | SW 16 | SW 16 | SW 24 | WSW 24 | SW 16 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | SW 21 | SW 16 | SW 21 | SW 16 | WNW 11 |
| kJ | 29 | 29 | 28 | 106 | 40 | 42 | 41 | 773 | 784 | 70 | 43 | 42 | 87 | 54 | 69 | 703 | 816 | 710 | 566 | 162 | 64 | 71 | 64 | 263 |
Swell 3 Height (m) Direction Period (s) | WSW 18 | SW 18 | WNW 19 | WSW 18 | WSW 17 | WNW 13 | WNW 13 | SW 16 | WNW 11 | WNW 10 | SW 24 | WSW 24 | SW 24 | WSW 24 | SW 24 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 21 | SW 21 | SW 16 |
| kJ | 31 | 12 | 37 | 31 | 30 | 17 | 35 | 42 | 66 | 123 | 22 | 54 | 87 | 54 | 22 | 95 | 94 | 68 | 41 | 64 | 64 | 72 | 18 | 86 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 8 | NW 8 | NW 8 | — | — | — | — | — | NW 13 | NW 7 | NW 8 | — | — | — | — | NW 8 | NW 8 | NW 8 | NW 9 | — |
| kJ | — | — | — | — | 413 | 1107 | 1165 | — | — | — | — | — | 2722 | 1048 | 637 | — | — | — | — | 403 | 1195 | 1667 | 1187 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 342 | 540 | 541 | 345 | 16 | 0 | 0 | 16 | 371 | 423 | 540 | 251 | 16 | 0 | 0 | 23 | 398 | 403 | 371 | 212 | 0 |
Best forecast wave conditions in Del Norte County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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