Trinidad State Beach surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 10 am Sunday 10 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Trinidad State Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trinidad State Beach sea temperature is
12.5° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Trinidad State Beach this week:

The surf forecast for Trinidad State Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 10) at 11PM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 1.5m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Trinidad State Beach in the next 16 days are 2.1m 12s and forecast to arrive on Sunday (May 17) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Friday (May 15) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 10th May)4.5ft (1.3m) 11s
Best Surf 5AM (Sat 16th May)4.5ft (1.4m) 14s
Most Powerful 5AM (Sun 17th May)7ft (2.1m) 12s

Table - best surf conditions forecast for Trinidad State Beach over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 16°C on Mon morning, min 10°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Wed night. Very mild (max 14°C on Wed morning, min 8°C on Fri night). Wind will be generally light.

Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
3
1
2
3
1
1
3
1
3
3
1
0
2
1
1
2
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
W
11
1.2
W
11
1.3
WNW
11
1.4
WNW
11
1.4
WNW
11
1.3
WNW
11
1.1
WNW
11
1
WNW
11
1.2
W
11
1.6
W
13
1.6
W
12
1.4
W
11
1.2
W
10
1.1
W
10
0.9
W
9
0.7
WNW
16
0.9
WNW
15
1.3
WNW
14
1.5
WNW
14
1.5
WNW
13
1.4
WNW
13
Wave Graph
Metric surfscale
Energy kJ
357
338
430
486
469
415
303
249
364
835
710
466
290
234
139
273
402
651
790
744
623
Wind (km/h)
10
NNW
20
NNW
5
ESE
10
NW
10
NNW
0
NNE
5
W
10
NW
0
SE
10
SW
5
ESE
5
ESE
10
WNW
10
NW
5
NE
15
NNW
15
NNW
15
N
20
NNW
25
NNW
15
N
cross-on
cross
glassy
cross-on
cross-on
glassy
on
cross-on
glassy
cross-on
off
off
on
cross-on
cross-off
cross-on
cross
cross
cross-on
cross
cross
High Tide
7:59PM1.57m
7:20AM1.40m
8:33PM1.70m
8:35AM1.42m
9:06PM1.86m
9:43AM1.48m
9:40PM2.02m
10:44AM1.57m
10:16PM2.18m
11:41AM1.64m
10:55PM2.30m
12:35PM1.69m
11:37PM2.38m
Low Tide
12:58PM0.17m
1:52AM0.75m
1:47PM0.23m
2:50AM0.50m
2:34PM0.32m
3:39AM0.21m
3:19PM0.42m
4:26AM-0.08m
4:04PM0.52m
5:11AM-0.34m
4:50PM0.62m
5:58AM-0.54m
5:36PM0.71m
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
rain showers
clear
clear
clear
cloud
clear
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:01
6:00
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:23
8:24
8:25
8:27
8:28
2
5
Temp °C
13
14
12
16
16
13
14
15
12
14
14
11
14
14
12
13
14
12
12
12
11
11
11
10
14
15
12
13
14
11
12
11
10
12
12
10
9
10
10
8
8
6
Swell 1
Height (m)
Direction
Period (s)
1.2
W
11
1.2
W
11
1.4
NNW
7
1.4
WNW
11
1.4
WNW
11
1.3
WNW
11
1.1
WNW
11
1
WNW
11
1.2
W
11
1.6
W
13
1.6
W
12
1.4
W
11
1.2
W
10
1.1
W
10
0.9
W
9
0.8
W
9
0.9
WNW
15
1.5
NW
7
1.5
WNW
14
1.5
WNW
13
1.8
NW
7
Energy kJ
357
338
170
486
469
415
303
249
364
835
710
466
290
234
139
106
402
206
790
744
336
Swell 2
Height (m)
Direction
Period (s)
1
NW
6
0.4
SW
18
1.3
WNW
11
1
NW
6
0.9
NW
6
1
NW
6
0.7
NW
6
0.5
NW
6
0.6
SW
15
0.4
SW
14
0.4
SW
14
0.4
SW
13
0.4
SW
13
0.5
NW
6
0.5
NNW
7
0.7
WNW
16
0.7
W
9
1.3
WNW
14
1.3
NW
7
0.4
SW
15
1.4
WNW
13
Energy kJ
61
111
430
75
62
75
38
16
134
73
67
63
45
17
25
273
81
651
138
77
623
Swell 3
Height (m)
Direction
Period (s)
0.6
SW
17
0.1
SW
12
0.4
SW
15
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.5
SW
15
0.4
SW
14
0.3
NNW
6
0.2
NNW
5
0.2
NNW
8
0.3
SW
18
0.4
NW
6
0.4
SW
16
0.5
SW
16
0.6
SW
16
0.5
SW
15
0.6
N
6
0.5
SW
15
0.1
SW
20
0.4
SW
14
Energy kJ
190
5
75
153
159
159
106
74
6
3
6
49
8
96
127
155
112
29
115
15
73
Wind waves
Height (m)
Direction
Period (s)
1.1
NW
6
0.8
NNW
4
1.5
NW
7
Energy kJ
72
16
189
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
2
3
3
2
2
2
3
3
3
1
1
2
2
2
3
2
2
4
Distance (km)
374
493
0
79
117
0
80
80
0
80
0
0
5
493
0
321
492
3
79
492
39
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
3
3
2
3
3
1
2
3
4
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
4
3
3
2
2
3
3
3
3
2
3
3
3
4
4
2
4
Header Global
Rating
(10 max)
5
6
5
4
5
9
9
9
9
7
5
5
5
6
6
5
5
4
4
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 16 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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