Trinidad State Beach surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 4 am Tuesday 12 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
12.2° 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 Tuesday (May 12) at 5PM. The primary swell is predicted to be 1.1m and 11s 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 16 days are 3.0m 13s and forecast to arrive on Saturday (May 16) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Friday (May 15) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Tue 12th May)3.5ft (1.1m) 11s
Best Surf 2AM (Mon 18th May)8ft (2.5m) 8s
Most Powerful11PM (Sat 16th May)10ft (3.0m) 13s

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

Some drizzle, heaviest during Tue night. Very mild (max 15°C on Tue afternoon, min 8°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Sat afternoon, min 8°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat afternoon, light winds from the NNE by Sun night).

Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Monday
18
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
2
3
3
1
3
0
0
2
0
0
2
0
0
1
0
1
4
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
WNW
11
1.1
WNW
11
1.3
W
11
1.7
W
12
1.7
W
12
1.7
W
11
1.7
WNW
10
1.7
WNW
10
1.4
WNW
9
0.6
WNW
16
0.9
WNW
15
2
WNW
14
2
WNW
13
2.5
WNW
13
3
NW
8
2.4
NW
12
3.5
NW
8
2.5
NW
8
1.9
NW
8
2.2
NNW
7
1.3
WNW
14
Wave Graph
Metric surfscale
Energy kJ
356
292
433
913
814
694
551
527
340
206
392
1560
1426
2053
1256
1521
1545
975
424
542
651
Wind (km/h)
10
WNW
5
NW
5
WSW
10
WNW
15
NNW
10
NE
15
NNW
25
NNW
10
NNE
25
NNW
30
NNW
15
N
25
NNW
35
NNW
25
N
30
NNW
30
NNW
10
NNE
20
NNW
25
NNW
20
N
cross-on
glassy
glassy
cross-on
cross-on
cross-off
cross-on
cross
cross-off
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross-off
cross
cross
cross
High Tide
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
1:29PM1.71m
00:23AM2.39m
2:23PM1.69m
1:12AM2.34m
Low Tide
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
6:45AM-0.66m
6:24PM0.77m
7:35AM-0.70m
7:15PM0.82m
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:00
5:58
5:58
5:58
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:23
8:24
8:25
8:27
8:28
8:29
8:30
1
Temp °C
14
15
13
14
14
11
13
14
11
12
12
10
12
13
11
13
13
11
13
14
12
13
14
12
12
11
8
9
10
7
7
6
5
6
7
4
6
6
6
9
9
8
Swell 1
Height (m)
Direction
Period (s)
1.2
WNW
11
1.1
WNW
11
1.3
W
11
1.7
W
12
1.7
W
12
1.7
W
11
1.7
WNW
10
1.7
WNW
10
1.4
WNW
9
0.7
WNW
9
0.9
WNW
15
2
WNW
14
2
WNW
13
0.4
SW
15
0.4
SW
14
0.4
SW
14
0.3
SW
14
2.5
NW
8
0.3
WNW
18
1.2
WNW
9
2.2
NW
8
Energy kJ
356
292
433
913
814
694
551
527
340
86
392
1560
1426
78
74
53
32
975
61
253
619
Swell 2
Height (m)
Direction
Period (s)
0.6
NW
6
0.4
SW
14
0.5
SW
15
0.4
SW
14
0.4
SW
14
0.4
SW
13
0.4
SW
18
0.4
SW
16
0.6
N
6
0.6
WNW
16
0.5
SW
15
0.5
SW
15
0.4
SW
15
0.1
SW
20
0.1
SW
18
0.1
SW
18
0.3
SW
14
0.2
SSW
13
0.9
WNW
16
1.3
WNW
14
Energy kJ
25
74
104
73
67
62
79
96
22
206
113
107
84
15
13
12
29
17
362
651
Swell 3
Height (m)
Direction
Period (s)
0.5
SW
15
0.4
NNW
6
0.3
W
15
0.1
SW
20
0.2
SSW
19
0.3
SW
18
0.3
SW
13
0.3
SW
13
0.5
SW
16
0.5
SW
16
0.1
W
20
0.1
SW
18
0.2
WSW
18
0.2
WSW
16
0.8
N
7
Energy kJ
106
12
38
15
35
49
27
27
127
122
7
12
31
26
68
Wind waves
Height (m)
Direction
Period (s)
1.3
NW
6
1.8
NW
7
2.5
WNW
13
3
NW
8
2.4
NW
12
3.5
NW
8
1.9
NW
8
2.2
NNW
7
Energy kJ
120
267
2053
1256
1521
1545
424
542
Nearest Offshore or Glassy
Rating
(10 max)
1
2
3
2
2
3
4
1
2
3
1
4
1
2
4
4
1
4
2
1
2
Distance (km)
353
0
0
492
79
0
321
493
0
492
493
22
493
1117
79
493
493
0
390
493
75
Best forecast wave conditions in Humboldt County
Rating
(10 max)
2
3
3
2
4
4
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
2
3
4
4
3
4
3
2
4
4
2
5
4
4
7
5
4
5
Header Global
Rating
(10 max)
9
9
6
8
9
5
5
5
5
5
5
4
6
5
5
4
4
7
5
5
4
  • 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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