Harbor Entrance at Eureka Surf Break

Lat Long: 40.77° N 124.23° W

Issued: 10 am 05 Jul 2026 (local time)

Forecast update in  hr  min

Today's Harbor Entrance at Eureka sea temperature is
11.5° C

1.5°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 6 Jul 2026:

  • Best quality surf: Friday 10 Jul, 2AM (local time) - 8ft (2.5m), 8s period, NW swell with glassy winds.
  • Most powerful swell: Thursday 9 Jul, 8PM (local time) - 8ft (2.5m), 8s period, NW swell with 860 kJ wave energy.
  • Next surfable swell (1★+): Monday 6 Jul, 2AM (local time) - 7ft (2.1m), 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 Monday (Jul 06) at 2AM. The primary swell is predicted to be 2.1m and 8s period with a secondary swell of 0.8m and 12s. 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 2.5m 8s and forecast to arrive on Thursday (Jul 09) 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 1.1m 17s period and expected on Wednesday (Jul 08) at 5PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 6th Jul)7ft (2.1m) 8s
Best Surf 2AM (Fri 10th Jul)8ft (2.5m) 8s
Most Powerful 8PM (Thu 9th Jul)8ft (2.5m) 8s

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


Updates in  hr  min  s Forecast update imminent

Hey, Rusty here again. Let’s talk feet and Fahrenheit. Harbor Entrance at Eureka is looking bleak for the next 16 days. Water temp’s 53°F—about 3°F colder than usual—so you’ll want a hood.

Starting Sunday July 5: weak NW swell around 5ft, short-period, cross-on breeze, just ugly. The whole first week stays messy with onshore to cross-on winds, chop, and swell 4-8ft but periods under 10 seconds. Wave energy moderate (635-748) but no quality. Tuesday July 7 morning is a total loss. Thursday July 9 brings 7ft NW but moderate cross-on wind—still poor. Friday July 10 morning shows stronger energy but choppy conditions.

Second week: July 13-14 tiny 2-3ft swell with very long periods (14-21 seconds) but cross-on wind. July 15-16 has a 19-21 second groundswell but only 2-3ft—lots of lulls. Friday July 17 and Saturday July 18 jump to 8ft NW with strong energy (1499-1602) but blown out and expert-only. Nothing here worth a drive. A classic quiet spell for this spot. Keep the board in the car, but don’t get your hopes up.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 13°C on Sun morning, min 11°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 14°C on Fri afternoon, min 11°C on Wed morning). Wind will be generally light.

Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
3
1
1
2
0
1
2
0
0
1
0
0
4
1
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
NNW
8
2.1
NNW
8
2.1
NNW
8
1.9
NW
8
1.8
NW
8
1.7
NW
7
1.3
NNW
7
1.4
NW
10
0.9
NW
10
1.6
NW
7
1.5
NNW
7
1
SW
16
2.2
NNW
8
2.4
NW
8
2.5
NW
8
2.2
NW
8
0.9
SW
15
1.5
NNW
7
1.3
NW
7
1.3
NW
9
1.2
NW
9
Wave Graph
Metric surfscale
Energy kJ
262
572
587
463
388
311
150
432
139
237
211
508
557
748
840
573
372
198
159
300
246
Wind (km/h)
10
W
10
WNW
5
NW
10
WNW
15
NNW
10
N
15
NW
15
N
5
NNE
10
NNW
15
N
10
NW
20
NNW
20
N
5
N
15
NNW
20
N
10
NNW
20
N
15
NNE
10
N
Wind State
cross-on
on
glassy
on
on
cross-on
on
cross-on
glassy
on
cross-on
on
cross-on
cross-on
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
4:50PM1.66m
4:03AM1.44m
5:24PM1.75m
5:14AM1.26m
6:02PM1.86m
6:42AM1.14m
6:46PM1.97m
8:20AM1.10m
7:35PM2.08m
9:48AM1.16m
8:29PM2.18m
10:59AM1.26m
9:25PM2.27m
Low Tide
10:16AM0.08m
10:57PM0.82m
10:53AM0.25m
00:01AM0.65m
11:34AM0.44m
1:09AM0.44m
12:20PM0.64m
2:16AM0.20m
1:15PM0.82m
3:19AM-0.05m
2:17PM0.95m
4:18AM-0.28m
3:23PM1.03m
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:52
5:52
5:52
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:51
8:51
8:50
8:50
8:50
8:49
8:49
 mm
Temp °C
13
13
12
13
13
12
12
12
12
13
13
13
12
12
12
13
14
13
13
13
12
Feels °C
12
12
10
11
11
10
11
10
12
11
11
12
10
8
9
10
11
11
10
10
9
Swell 1
Height (m)
Direction
Period (s)
1.5
NNW
8
2.1
NNW
8
2.1
NNW
8
1.9
NW
8
0.8
SSW
16
1.7
NW
7
0.8
WNW
11
1.4
NW
10
1.2
NNW
6
0.9
SSW
18
1.1
SW
17
1
SW
16
0.9
SSW
16
2.4
NW
8
0.9
SW
16
0.9
SW
15
1.9
NW
7
1.5
NNW
7
1.3
NW
7
1.3
NW
9
1.2
NW
9
Energy kJ
257
572
587
463
334
311
146
432
117
547
695
508
452
748
353
340
372
198
159
300
246
Swell 2
Height (m)
Direction
Period (s)
1.4
NW
8
0.7
SW
18
0.8
WNW
12
0.8
WNW
12
0.8
WNW
12
0.6
SW
16
0.8
SSW
20
0.6
SW
16
0.9
SSW
18
0.6
SW
15
0.8
WNW
9
0.3
SSW
19
0.2
SSW
13
1
SSW
16
0.9
SW
15
0.9
SW
15
0.8
SSW
15
0.8
SSW
14
0.7
SW
14
0.7
SW
15
Energy kJ
262
319
184
177
169
206
485
198
547
134
99
74
17
545
344
340
275
268
214
220
Swell 3
Height (m)
Direction
Period (s)
0.6
WNW
13
0.7
WNW
13
0.6
SSW
18
0.6
SSW
17
0.6
SSW
21
0.6
SSW
20
0.7
SW
16
0.7
SSW
19
0.9
NW
10
0.2
S
11
0.2
S
11
0.4
SSW
18
0.6
WNW
9
0.6
WNW
9
0.1
W
19
0.1
W
17
Energy kJ
116
151
207
200
305
256
258
332
139
9
9
104
54
59
7
5
Wind waves
Height (m)
Direction
Period (s)
1.8
NW
8
0.8
N
7
1.3
NNW
7
0.4
N
7
1.6
NW
7
1.5
NNW
7
2.1
NNW
7
2.2
NNW
8
2.5
NW
8
2.2
NW
8
Energy kJ
388
70
150
14
237
211
465
557
840
573
Nearest Offshore or Glassy
Rating
(10 max)
2
3
3
2
1
2
2
2
2
3
2
3
3
2
4
4
2
2
1
2
2
Distance (km)
113
73
0
112
465
18
112
465
0
292
465
18
362
464
0
292
465
18
362
85
52
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
3
2
4
3
4
2
2
3
Best forecast wave conditions in United States
Rating
(10 max)
2
3
3
2
2
4
2
2
4
4
2
4
3
2
4
4
4
3
2
2
3
Header Global
Rating
(10 max)
6
4
8
7
5
5
9
8
9
9
5
5
6
5
8
5
5
8
6
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)
Map placeholder
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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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