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Little River Clam Beach Surf Forecast
/ CAL – Humboldt (25 breaks) / California (404 breaks) /
Surf Forecasts:
Little River Clam Beach surfForecast / CAL – Humboldt / USA
48hr Weather and Surf, issued 4 am Thursday 18 Sep 2025 PDT
How big are the waves at Little River Clam Beach today?
The current surf forecast for Little River Clam Beach at 9AM is: 3.0m 10s primary swell from a Northwest direction and 0.4m 15s secondary swell from a Southwest direction (forecast issued at 04:00am September 18). The wind direction is predicted to be glassy and the swell rating is 11.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 10ft (3.0m) | 10s |
| Afternoon (18 Sep) | 10ft (3.0m) | 10s |
| Evening (18 Sep) | 11ft (3.5m) | 10s |
Table - waves today at Little River Clam Beach. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1011 | 1460 | 1464 | 1597 | 1584 | 1947 | 2037 | 1986 | 1616 | 1175 | 944 | 699 | 554 | 443 | 375 | 402 | 325 | 294 | 266 | 300 | 242 | 242 | 626 | 605 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | glass | on | cross- on | cross- on | glass | cross- off | cross- off | cross- off | glass | cross- on | on | glass | glass | cross | cross- on | glass | glass | cross- on | on | cross- on | glass | glass |
High Tide / height (m) | 10:41AM 1.74 | 10:00PM 1.98 | 11:15AM 1.82 | 10:51PM 1.98 | 11:44AM 1.90 | |||||||||||||||||||
Low Tide / height (m) | 4:00AM -0.07 | 4:08PM 0.73 | 4:44AM -0.05 | 4:55PM 0.56 | 5:21AM 0.00 | 5:37PM 0.41 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
| Sunrise | - | - | 6:58 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:20 | - | - | - | - | - | - | - | 7:19 | - | - | - | - | - | - | - | 7:16 | - | - |
 |  |  |  |  | |  | | | | | |  |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 14 | 18 | 17 | 17 | 15 | 16 | 16 | 15 | 15 | 17 | 17 | 17 | 16 | 17 | 16 | 16 | 16 | 19 | 19 | 17 | 15 | 14 |
| Feels °C (?) | 14 | 13 | 14 | 18 | 16 | 16 | 15 | 15 | 14 | 15 | 15 | 17 | 17 | 18 | 16 | 17 | 16 | 17 | 17 | 20 | 19 | 16 | 15 | 14 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for CAL - Humboldt
Continuing clean conditions at Little River Clam Beach (calm at Arcata/Eureka Airport 3 km from Little River Clam Beach). 1.2m 9s swell from the NW with a 0.3m 15s groundswell from the SW. 2 swells combining to make bigger set waves.
2 h 28 min ago
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