Harbor Entrance at Eureka Surf Break

Lat Long: 40.77° N 124.23° W

Harbor Entrance at Eureka Surf Forecast and Surf Report

Issued: 4 am 23 Sep 2026 (local time)

Forecast update in  hr  min

Today's Harbor Entrance at Eureka sea temperature is
13.4°C
0.5° 

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 23 Sep 2026:

  • Best quality surf: Wednesday 23 Sep, 11PM (local time) - 6ft (1.9m), 11s period, NW swell with glassy winds.
  • Most powerful swell: Friday 25 Sep, 8AM (local time) - 10ft (3.0m), 11s period, WNW swell with 2,139 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 23 Sep, 11PM (local time) - 6ft (1.9m), 11s period with NW 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 Wednesday (Sep 23) at 11PM. The primary swell is predicted to be 1.9m and 11s period with a secondary swell of 0.8m and 15s. 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 3.0m 11s and forecast to arrive on Friday (Sep 25) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 14s period and expected on Thursday (Sep 24) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Wed 23rd Sep)6ft (1.9m) 11s
Best Surf11PM (Wed 23rd Sep)6ft (1.9m) 11s
Most Powerful 8AM (Fri 25th Sep)10ft (3.0m) 11s

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


Short Range Forecast

Some drizzle, heaviest during Thu night. Very mild (max 17°C on Thu night, min 11°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 14°C on Sat afternoon, min 10°C on Mon night). Wind will be generally light.

Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
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
0
4
2
2
2
1
0
3
2
2
2
1
1
1
2
1
4
1
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
WNW
11
1.3
WNW
11
2
NW
11
1.7
NW
11
1.6
NW
11
1.5
WNW
10
3
WNW
10
2.4
NW
9
1.9
NW
9
2.5
NNW
9
3
NNW
9
3
NNW
9
2.5
NNW
9
2.3
NNW
8
2.4
NNW
8
1.4
NW
16
1.4
NW
15
1.7
WNW
14
1.4
NW
13
1.4
NW
13
1.3
WNW
12
Wave Graph
Metric surfscale
Energy kJ
450
411
947
676
548
436
1675
984
573
986
1368
1603
1051
717
771
1031
869
1111
700
689
488
Wind (km/h)
15
NNW
15
N
5
E
5
W
5
SW
0
NW
20
N
25
N
10
NNE
10
NNW
15
N
15
NW
15
NNW
20
N
20
NNW
10
NNW
20
N
5
SE
10
NNW
15
N
5
E
Wind State
on
cross-on
glassy
cross-on
cross
glassy
cross-on
cross-on
cross
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
off
on
cross-on
cross-off
High Tide
11:03AM1.52m
10:22PM1.73m
11:28AM1.63m
11:07PM1.76m
11:51AM1.74m
11:51PM1.75m
12:15PM1.86m
00:36AM1.72m
12:41PM1.96m
1:22AM1.66m
1:09PM2.04m
2:12AM1.56m
1:41PM2.10m
3:07AM1.45m
Low Tide
4:41PM0.77m
5:12AM0.11m
5:23PM0.59m
5:44AM0.15m
6:03PM0.39m
6:15AM0.22m
6:43PM0.20m
6:47AM0.33m
7:24PM0.03m
7:19AM0.46m
8:08PM-0.09m
7:53AM0.62m
8:55PM-0.17m
clear
clear
clear
part cloud
cloud
rain showers
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:07
7:07
7:09
7:09
7:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:12
7:10
7:08
7:07
7:06
7:04
7:01
 mm
1
Temp °C
14
14
12
15
16
17
15
15
13
13
14
13
13
13
13
12
13
12
13
13
11
Feels °C
12
11
10
14
15
15
13
11
9
10
11
11
10
10
11
10
10
10
11
10
10
  • 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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