Third Reef surfForecast / CAL – Humboldt / USA

information circle48hr Weather and Surf, issued 10 am Wednesday 20 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Third Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Third Reef sea temperature is
9.4° C
(Which is 2.6°C colder than average for this time of year)

How big are the waves at Third Reef today?

The current surf forecast for Third Reef at 1PM is: 1.9m 12s primary swell from a Northwest direction and 0.4m 16s secondary swell from a Southwest direction (forecast issued at 10:00am May 20). An open ocean swell of 0.4m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (PDT) & DateWave HeightWave Period
Morning (20 May)8ft (2.4m)12s
Afternoon (20 May)7ft (2.1m)12s
Evening (20 May)7ft (2.1m)12s

Table - waves today at Third Reef. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Wed afternoon, min 10°C on Wed night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Sat
23
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
2 AM
5 AM
Rating
(10 max)
4
1
1
0
2
1
3
3
4
2
3
3
2
3
3
3
3
2
2
3
2
2
3
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.4
NW
13
1.9
NW
12
2
NW
12
2.2
NW
12
2.1
NW
12
1.4
NW
11
2.1
NW
9
1.6
NW
11
1.8
NW
11
1.8
NW
10
2.3
NW
9
1.9
NW
10
1.3
NW
10
2.1
NW
9
1.8
NW
10
1.8
NW
10
1.9
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
9
1.5
NW
9
1.3
NW
9
1.3
NW
9
1.1
WNW
10
Wave Graph
Metric surfscale
Energy kJ
1834
993
1094
1313
1187
439
643
561
698
685
891
701
335
711
664
589
687
577
566
531
351
294
281
245
Wind (km/h)
10
N
15
NW
15
NW
20
NNW
20
N
15
N
15
N
10
N
5
N
10
NW
5
NW
5
WNW
5
N
10
N
10
N
10
NNE
5
N
10
WNW
5
WNW
0
NW
5
NNW
5
N
5
NNE
5
E
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
glassy
cross-on
cross-on
glassy
cross
cross
cross
cross-off
glassy
cross-on
cross-on
glassy
cross-on
cross
cross-off
glassy
High Tide
4:11PM1.40m
2:34AM1.85m
5:10PM1.42m
3:39AM1.66m
6:06PM1.47m
4:54AM1.46m
Low Tide
9:06AM-0.55m
8:45PM0.89m
10:03AM-0.39m
10:05PM0.87m
11:00AM-0.22m
11:32PM0.79m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:29
8:30
8:30
8:30
Temp °C
13
16
16
20
15
10
10
11
15
14
14
14
14
13
12
13
15
13
12
12
12
12
10
10
10
13
12
15
11
6
7
9
14
12
13
13
13
11
10
11
14
11
11
11
11
11
8
9
Swell 1
Height (m)
Direction
Period (s)
1.9
NW
13
0.5
SW
21
0.4
SW
16
0.4
SW
16
0.5
SW
16
1.4
NW
11
1.6
NW
11
1.6
NW
11
1.8
NW
11
1.8
NW
10
1.8
NW
10
1.9
NW
10
1.3
NW
10
1.4
NW
9
1.8
NW
10
1.8
NW
10
1.9
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
9
1.5
NW
9
1.3
NW
9
1.3
NW
9
1.1
WNW
10
Energy kJ
1094
224
90
89
122
439
582
561
698
685
680
701
335
343
577
589
687
577
566
531
351
294
281
245
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
21
0.4
SW
16
0.4
S
14
0.4
S
14
0.4
S
14
0.5
SW
16
0.9
NNW
9
0.7
NNW
9
0.6
SSW
19
0.6
SW
19
0.5
SW
19
0.5
SW
15
0.5
SW
15
1
WNW
11
0.5
SW
15
0.5
SW
17
0.5
SW
15
0.5
SW
18
0.5
SW
18
0.5
SW
18
0.7
NW
10
0.8
WNW
11
0.9
NW
10
0.9
NNW
9
Energy kJ
162
65
61
59
58
119
127
71
251
303
184
113
116
234
116
142
112
154
154
154
108
146
157
138
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
16
0.3
S
14
0.4
SW
21
0.2
SSW
21
0.1
SW
21
0.4
S
14
0.5
SW
15
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.4
S
13
0.4
S
13
0.5
SW
15
0.4
S
13
0.4
S
13
0.4
SW
18
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.5
SW
18
0.5
SW
15
0.5
SW
15
0.5
SW
15
Energy kJ
66
36
117
44
18
57
112
79
78
79
80
54
54
116
53
52
111
109
109
110
152
106
109
109
Wind waves
Height (m)
Direction
Period (s)
2.4
NW
13
1.9
NW
12
2
NW
12
2.2
NW
12
2.1
NW
12
1.4
NW
8
2.1
NW
9
1.9
NW
9
2.3
NW
9
1.4
NW
9
2.1
NW
9
2
NW
9
Energy kJ
1834
993
1094
1313
1187
238
643
548
891
321
711
664
Nearest Offshore or Glassy
Rating
(10 max)
5
3
1
4
4
3
4
4
4
3
4
3
3
4
4
3
3
3
3
3
3
3
3
2
Distance (km)
3
193
243
57
57
3
3
3
0
193
3
0
3
3
3
0
0
141
3
0
0
3
0
0
Best forecast wave conditions in Humboldt County
Rating
(10 max)
5
4
4
4
4
4
3
3
4
4
3
3
3
3
3
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
5
4
3
4
4
4
4
4
4
3
4
3
3
4
4
3
3
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
4
5
5
5
5
5
5
5
5
5
4
4
5
7
8
7
6
5
5
5
5
6
8
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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