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Trinidad State Beach Surf Forecast
/ CAL – Humboldt (25 breaks) / California (404 breaks) /
Surf Forecasts:
Trinidad State Beach surfForecast / CAL – Humboldt / USA
48hr Weather and Surf, issued 4 pm Friday 17 Oct 2025 PDT
How big are the waves at Trinidad State Beach today?
The current surf forecast for Trinidad State Beach at 6PM is: 0.8m 20s primary swell from a West-northwest direction and 1.5m 7s secondary swell from a Northwest direction, 1.0m 13s secondary swell from a West-northwest direction (forecast issued at 04:00pm October 17). The wind direction is predicted to be cross-shore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Oct) | - | - |
| Afternoon (17 Oct) | 3ft (0.9m) | 13s |
| Evening (17 Oct) | 4ft (1.2m) | 19s |
Table - waves today at Trinidad State Beach. (Swell directed towards the surf break)
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| 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 | 2 AM | 5 AM | 8 AM | 11 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 20 | 19 | 18 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 15 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 317 | 450 | 876 | 1556 | 2377 | 2853 | 3304 | 3569 | 3369 | 3331 | 2813 | 2285 | 2005 | 1579 | 1110 | 1077 | 1117 | 1622 | 2522 | 8258 | 7655 | 5906 | 5012 | 4156 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | glass | cross- off | glass | cross- off | glass | cross- on | glass | cross- off | glass | glass | cross- off | glass | cross | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 9:54PM 1.74 | 10:31AM 1.94 | 10:45PM 1.74 | 10:59AM 2.01 | 11:32PM 1.73 | |||||||||||||||||||
Low Tide / height (m) | 4:01PM 0.52 | 4:06AM 0.23 | 4:45PM 0.34 | 4:42AM 0.34 | 5:23PM 0.18 | 5:14AM 0.47 | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:33 | - |
| Sunset | - | 6:32 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - |
 | |  | |  | | | | | | | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 11 | 11 | 12 | 12 | 12 | 17 | 16 | 14 | 11 | 11 | 12 | 13 | 12 | 14 | 16 | 14 | 11 | 10 | 10 | 9 | 9 | 14 |
| Feels °C (?) | 12 | 12 | 10 | 10 | 10 | 11 | 10 | 16 | 15 | 14 | 10 | 10 | 11 | 11 | 11 | 13 | 12 | 10 | 7 | 8 | 8 | 6 | 6 | 11 |
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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
Recent clean conditions at Trinidad State Beach have likely become affected by the arrival of onshore winds (light winds from the W at Arcata/Eureka Airport 10 km from Trinidad State Beach). 1.6m 6s windswell from the NNW with a 1.0m 10s swell from the NW and a 0.6m 16s long period groundswell from the WNW. 3 swells combining so expect closeout sets.
1 h 57 min ago
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