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Trinidad State Beach Surf Forecast
/ CAL – Humboldt (25 breaks) / California (404 breaks) /
Trinidad State Beach surfForecast / CAL – Humboldt / USA
12 Day Weather and Surf, issued 4 pm Friday 18 Jul 2025 PDT
Best Forecast Surf Conditions for Trinidad State Beach this week:
The surf forecast for Trinidad State Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 19) at 2AM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.4m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trinidad State Beach in the next 12 days are 1.5m 9s and forecast to arrive on Saturday (Jul 19) at 5AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 19th Jul) | 4.5ft (1.4m) 9s |
| Best Surf | 2AM (Sat 19th Jul) | 4.5ft (1.4m) 9s |
| Most Powerful | 5AM (Sat 19th Jul) | 5ft (1.5m) 9s |
Table - best surf conditions forecast for Trinidad State Beach over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 17°C on Sat afternoon, min 11°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 16°C on Mon afternoon, min 11°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 7 | 7 | 7 | 7 | 16 | 17 | 8 | 8 | 9 | 15 | 14 | 10 | 10 | 9 | ||
Wave (?)Graph  | |||||||||||||||||||||||
| Energy (?) | 440 | 388 | 353 | 368 | 282 | 193 | 205 | 134 | 145 | 127 | 179 | 165 | 167 | 178 | 147 | 151 | 146 | 101 | 150 | 156 | 129 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | cross- on | cross | glass | cross- on | cross | glass | cross- on | cross- on | glass | cross- on | on | glass | on | cross- on | glass | cross- on | cross- on | glass | cross- on | ||
High Tide / height (m) | 6:15PM 2.12 | 7:50AM 1.31 | 7:08PM 2.18 | 9:19AM 1.37 | 8:06PM 2.24 | 10:31AM 1.47 | 9:05PM 2.29 | 11:26AM 1.57 | 10:03PM 2.32 | 12:13PM 1.66 | 10:58PM 2.33 | 12:55PM 1.72 | 11:48PM 2.31 | 1:33PM 1.77 | |||||||||
Low Tide / height (m) | 1:29AM 0.13 | 12:31PM 0.82 | 2:36AM -0.06 | 1:40PM 0.96 | 3:38AM -0.23 | 2:53PM 1.02 | 4:34AM -0.36 | 3:59PM 0.99 | 5:24AM -0.44 | 4:59PM 0.92 | 6:10AM -0.48 | 5:52PM 0.84 | 6:53AM -0.45 | ||||||||||
Fri 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||||
| Sunrise | - | - | 6:00 | - | - | 6:01 | - | - | 6:01 | - | - | 6:01 | - | - | 6:03 | - | - | 6:03 | - | - | 6:05 | ||
| Sunset | 8:45 | - | - | 8:45 | - | - | 8:44 | - | - | 8:43 | - | - | 8:42 | - | - | 8:42 | - | - | 8:40 | - | - | ||
 |  |  | |  | | | | | |  | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 16 | 13 | 16 | 17 | 14 | 16 | 16 | 14 | 15 | 16 | 13 | 15 | 15 | 13 | 16 | 16 | 14 | 16 | 16 | 14 | 16 | ||
| Feels °C (?) | 15 | 12 | 14 | 15 | 12 | 14 | 14 | 12 | 14 | 15 | 12 | 14 | 14 | 13 | 16 | 15 | 14 | 16 | 15 | 14 | 14 | ||
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Recent Eyeball Surf Reports for CAL - Humboldt
Continuing clean conditions at Trinidad State Beach (calm at Arcata/Eureka Airport 10 km from Trinidad State Beach). 1.5m 9s swell from the NW with a 0.4m 15s groundswell from the SW. Swells combining to make to make bigger set waves.
1 h 7 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trinidad State Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Trinidad State Beach Surf forecast
The above surf forecast table for Trinidad State Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Trinidad State Beach can be found by selecting the local surf guide option on the grey menu. Our Trinidad State Beach 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 (Trinidad State Beach) 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 Trinidad State Beach 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.
Trinidad State Beach is 14 km (9 miles) from McKinleyville. If you plan a vacation in Humboldt 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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