Harbor Entrance at Eureka surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 4 am Saturday 30 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Harbor Entrance at Eureka surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Harbor Entrance at Eureka sea temperature is
10.5° C
(Which is 1.8°C colder than average for this time of year)

Harbor Entrance at Eureka surf forecast from 30 May 2026:

  • Best quality surf: Sunday 31 May, 2AM (local time) - 8ft (2.5m), 8s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Sunday 31 May, 8PM (local time) - 11ft (3.5m), 9s period, NNW swell with 2,074 kJ wave energy.
  • Next surfable swell (1★+): Sunday 31 May, 2AM (local time) - 8ft (2.5m), 8s period with NNW swell.

Best Forecast Surf Conditions for Harbor Entrance at Eureka this week:

The surf forecast for Harbor Entrance at Eureka over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 31) at 2AM. The primary swell is predicted to be 2.5m and 8s period with a secondary swell of 1.5m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Harbor Entrance at Eureka in the next 16 days are 3.5m 9s and forecast to arrive on Sunday (May 31) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 17s period and expected on Friday (Jun 05) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 31st May)8ft (2.5m) 8s
Best Surf 2AM (Sun 31st May)8ft (2.5m) 8s
Most Powerful 8PM (Sun 31st May)11ft (3.5m) 9s

Table - best surf conditions forecast for Harbor Entrance at Eureka over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 12°C on Mon morning, min 8°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Wed morning, min 9°C on Thu night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
4
1
1
4
1
1
2
1
0
1
0
0
1
0
0
3
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)
2.1
NNW
8
2.1
NNW
8
2.5
NNW
8
3
NW
9
3
NNW
9
3
NNW
9
2.3
NNW
9
2.2
NNW
8
1.4
NNW
8
1.3
NW
7
0.8
WNW
8
0.9
NW
7
0.8
W
11
0.9
SW
15
1.6
W
10
1.5
W
9
1.3
WNW
9
0.9
SW
19
1.3
WNW
11
1.2
WNW
11
1.3
WNW
11
Wave Graph
Metric surfscale
Energy kJ
550
536
956
1121
1564
1342
756
715
214
144
83
63
163
335
494
380
257
546
353
313
407
Wind (km/h)
20
N
25
N
5
ENE
15
NNW
20
N
0
N
10
NNW
15
NNW
5
ENE
10
NW
10
N
5
ENE
10
NNW
15
N
5
N
20
NNW
20
N
10
NE
10
WNW
15
SW
10
S
cross-on
cross-on
cross-off
cross-on
cross-on
glassy
on
cross-on
glassy
on
cross-on
glassy
on
cross-on
cross-on
cross-on
cross-on
cross
on
cross
cross-off
High Tide
1:10PM1.40m
11:36PM1.98m
1:51PM1.41m
00:07AM1.96m
2:31PM1.40m
00:40AM1.93m
3:11PM1.39m
1:14AM1.89m
3:51PM1.38m
1:51AM1.83m
4:32PM1.39m
2:33AM1.75m
5:12PM1.43m
3:21AM1.63m
Low Tide
5:55PM1.03m
7:07AM-0.21m
6:33PM1.08m
7:43AM-0.22m
7:10PM1.12m
8:20AM-0.20m
7:48PM1.14m
8:58AM-0.16m
8:30PM1.15m
9:36AM-0.11m
9:19PM1.16m
10:16AM-0.04m
10:16PM1.13m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
clear
part cloud
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:47
5:47
5:46
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:39
8:40
8:40
8:42
8:43
8:44
8:44
Temp °C
10
10
10
10
11
10
12
12
10
11
12
11
13
13
12
11
11
11
12
13
14
6
5
4
6
6
6
9
9
8
9
10
9
10
9
9
9
7
8
9
10
11
Swell 1
Height (m)
Direction
Period (s)
1.3
WNW
12
1.3
WNW
12
1.5
WNW
11
0.5
SSW
21
0.7
SSW
20
3
NNW
9
2.3
NNW
9
2.2
NNW
8
1.4
NNW
8
1.3
NW
7
0.9
NNW
7
0.9
SSW
16
0.9
SSW
16
1
W
11
1.6
W
10
1.5
W
9
1.3
WNW
9
1.5
WNW
10
1.3
SSW
17
1.3
SSW
18
1.3
SSW
17
Energy kJ
443
436
533
260
364
1342
756
715
214
144
83
441
430
235
494
380
257
492
1009
1021
998
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
0.4
SW
18
0.5
NW
11
1
WNW
10
0.9
SSW
19
0.9
SSW
18
1.1
WNW
9
1
SSW
17
0.9
SSW
16
0.9
NW
7
0.8
W
11
0.9
SW
15
0.8
SSW
15
0.8
SSW
18
0.9
SSW
19
0.9
SSW
16
1.3
WNW
11
1.2
WNW
11
1.3
WNW
11
Energy kJ
73
71
71
80
59
216
610
497
180
580
458
63
163
335
272
408
630
458
353
313
407
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
19
0.2
SSW
24
0.4
SW
22
0.3
SSW
13
0.3
SSW
13
0.8
SSW
20
0.8
WNW
10
0.3
SW
15
0.9
SSW
18
0.7
WNW
9
0.8
WNW
8
0.5
WNW
8
0.6
NNW
6
0.6
SSW
20
0.6
SSW
21
0.7
SW
14
0.8
WNW
11
0.9
SW
19
Energy kJ
37
55
124
33
32
485
122
34
541
65
80
41
25
253
283
214
164
546
Wind waves
Height (m)
Direction
Period (s)
2.1
NNW
8
2.1
NNW
8
2.5
NNW
8
3
NW
9
3
NNW
9
0.2
NNW
6
Energy kJ
550
536
956
1121
1564
3
Nearest Offshore or Glassy
Rating
(10 max)
2
2
4
4
4
4
2
3
2
2
1
1
2
2
3
4
2
3
3
4
2
Distance (km)
345
464
0
292
465
0
362
83
0
112
112
0
112
466
18
345
465
18
113
21
0
Best forecast wave conditions in Humboldt County
Rating
(10 max)
4
4
3
4
3
3
3
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
2
4
4
4
4
4
4
4
3
3
4
3
3
3
4
3
4
3
4
4
Header Global
Rating
(10 max)
7
7
6
5
5
4
4
5
5
4
5
4
4
5
4
5
4
4
4
5
9
  • 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 Harbor Entrance at Eureka Surf forecast

The above surf forecast table for Harbor Entrance at Eureka provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Harbor Entrance at Eureka can be found by selecting the local surf guide option on the grey menu. Our Harbor Entrance at Eureka 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 (Harbor Entrance at Eureka) 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 Harbor Entrance at Eureka 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.

Harbor Entrance at Eureka is 8 km (5 miles) from Eureka. If you plan a vacation in Humboldt County, look for hotels and other accommodation in Eureka. Eureka has rooms for a wide range of budgets as well as car hire and transport links.

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