Harbor Entrance at Eureka Surf Break

Lat Long: 40.77° N 124.23° W

Issued: 10 am 11 Jun 2026 (local time)

Forecast update in  hr  min

Today's Harbor Entrance at Eureka sea temperature is
11.3° C

1.1°C colder than average for this time of year

Harbor Entrance at Eureka surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Harbor Entrance at Eureka surf forecast from 11 Jun 2026:

  • Best quality surf: Friday 12 Jun, 11PM (local time) - 11ft (3.5m), 9s period, NNW swell with glassy winds.
  • Most powerful swell: Friday 12 Jun, 11PM (local time) - 11ft (3.5m), 9s period, NNW swell with 1,698 kJ wave energy.
  • Next surfable swell (1★+): Thursday 11 Jun, 11PM (local time) - 7ft (2.2m), 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 Thursday (Jun 11) at 11PM. The primary swell is predicted to be 2.2m and 8s period with a secondary swell of 1.0m and 9s. The wind is predicted to be glassy 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 Friday (Jun 12) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 16s period and expected on Thursday (Jun 11) at 5PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 11th Jun)7ft (2.2m) 8s
Best Surf11PM (Fri 12th Jun)11ft (3.5m) 9s
Most Powerful11PM (Fri 12th Jun)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 15°C on Sat morning, min 10°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

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

Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
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
2
0
2
4
2
2
3
1
2
1
2
3
3
3
2
4
2
1
3
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
7
2
NNW
7
2.4
NNW
8
2.3
NNW
8
2.5
NNW
8
3
NNW
9
2.4
NNW
8
2.4
NNW
8
2.5
NNW
9
1.7
NNW
8
1.5
NNW
8
1.4
NNW
8
0.6
SW
24
2
NNW
8
2.5
NNW
9
2.4
NNW
8
2.5
NNW
9
3
NNW
9
3
NNW
9
3
NNW
9
3
NNW
10
Wave Graph
Metric surfscale
Energy kJ
449
435
691
662
973
1480
778
809
932
403
267
213
444
513
1118
778
999
1514
1547
1449
1527
Wind (km/h)
20
N
20
N
5
N
20
N
15
NNE
5
N
10
NW
10
W
10
SSW
10
WSW
5
WSW
5
NNE
5
WNW
5
W
5
N
10
WNW
10
NNW
5
SSW
10
NW
15
NNW
5
SW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
on
cross-on
cross-off
cross
glassy
cross-on
cross-on
glassy
cross-on
cross-on
on
glassy
on
cross-on
cross
High Tide
9:48AM1.25m
9:04PM2.13m
10:58AM1.33m
9:49PM2.26m
11:59AM1.41m
10:36PM2.35m
12:55PM1.47m
11:26PM2.40m
1:47PM1.52m
00:17AM2.39m
2:36PM1.56m
1:09AM2.31m
3:24PM1.60m
2:03AM2.16m
Low Tide
2:56PM0.77m
4:34AM-0.19m
3:50PM0.88m
5:26AM-0.43m
4:44PM0.96m
6:16AM-0.59m
5:38PM0.99m
7:06AM-0.68m
6:32PM1.00m
7:55AM-0.68m
7:28PM0.99m
8:43AM-0.60m
8:27PM0.96m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:45
5:45
5:45
5:45
5:45
5:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:47
8:47
8:49
8:49
8:49
8:50
8:50
 mm
Temp °C
12
12
11
13
14
12
15
15
14
15
14
13
15
16
14
14
15
13
13
13
11
Feels °C
8
8
8
9
11
10
13
13
13
13
13
12
14
15
13
13
13
12
11
10
9
Swell 1
Height (m)
Direction
Period (s)
1
WNW
10
1
SSW
16
0.8
WNW
10
0.7
SSW
14
0.9
SSW
14
0.7
SSW
14
0.6
SSW
13
2.4
NNW
8
2.5
NNW
9
1.7
NNW
8
1.5
NNW
8
1.4
NNW
8
1.6
NNW
8
2
NNW
8
2.5
NNW
9
2.4
NNW
8
2.5
NNW
9
1.1
SW
19
1
SW
18
3
NNW
9
3
NNW
10
Energy kJ
197
540
128
218
301
215
141
809
932
403
267
213
310
513
1118
778
999
959
628
1449
1527
Swell 2
Height (m)
Direction
Period (s)
1
SSW
16
0.9
WNW
10
0.9
SSW
15
0.7
WNW
11
0.2
SSW
20
0.4
SSW
19
0.5
S
19
0.6
SSW
13
0.7
SSW
13
0.7
SSW
16
0.7
SSW
16
0.7
SSW
16
0.7
SSW
15
0.7
SSW
15
1
SW
21
0.8
SW
21
1.1
SW
19
0.6
SSW
13
0.7
SSW
14
1.1
SW
18
1.1
SW
18
Energy kJ
547
159
339
123
38
125
178
137
181
269
269
253
225
225
890
533
834
137
198
686
679
Swell 3
Height (m)
Direction
Period (s)
0.4
NW
13
0.3
WNW
13
0.2
S
21
0.6
WNW
12
0.4
SSW
20
0.4
WNW
10
0.6
SSW
18
0.6
SSW
18
0.6
SSW
13
0.6
SSW
13
0.5
WNW
10
0.6
SW
24
0.6
SW
23
0.8
SSW
14
0.7
SSW
14
0.7
SSW
13
0.4
S
16
0.7
SSW
14
0.6
SSW
14
0.6
S
14
Energy kJ
45
35
36
106
127
32
249
243
135
131
55
444
436
276
189
187
79
210
163
150
Wind waves
Height (m)
Direction
Period (s)
2.1
NNW
7
2
NNW
7
2.4
NNW
8
2.3
NNW
8
2.5
NNW
8
3
NNW
9
2.4
NNW
8
3
NNW
9
3
NNW
9
Energy kJ
449
435
691
662
973
1480
778
1514
1547
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
3
2
4
3
3
3
1
2
2
3
3
4
3
4
4
4
3
4
Distance (km)
324
324
56
109
83
0
203
41
0
113
0
18
42
0
41
27
83
0
83
112
4
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
3
4
3
4
3
2
3
4
4
3
4
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
4
3
4
3
3
4
3
3
4
4
4
4
3
4
4
4
4
4
Header Global
Rating
(10 max)
6
6
9
5
5
5
4
7
5
9
4
5
5
5
5
5
5
4
5
6
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 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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