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 08 Oct 2026 (local time)

Forecast update in  hr  min

Today's Harbor Entrance at Eureka sea temperature is
13.1°C
0.4° 

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 8 Oct 2026:

  • Best quality surf: Thursday 8 Oct, 11PM (local time) - 7ft (2.2m), 9s period, NNW swell with glassy winds.
  • Most powerful swell: Sunday 11 Oct, 8PM (local time) - 15ft (4.5m), 10s period, NNW swell with 3,996 kJ wave energy.
  • Next surfable swell (1★+): Thursday 8 Oct, 11PM (local time) - 7ft (2.2m), 9s 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 (Oct 08) at 11PM. The primary swell is predicted to be 2.2m and 9s period with a secondary swell of 1.3m and 13s. 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 4.5m 10s and forecast to arrive on Sunday (Oct 11) 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 1.0m 16s period and expected on Wednesday (Oct 14) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 8th Oct)7ft (2.2m) 9s
Best Surf11PM (Thu 8th Oct)7ft (2.2m) 9s
Most Powerful 8PM (Sun 11th Oct)15ft (4.5m) 10s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Thu morning, min 9°C on Sat night). Winds increasing (calm on Thu night, strong winds from the N by Sat night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Sun afternoon, min 8°C on Sun morning). Mainly near gales.

Thursday
8
Friday
9
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
4
1
0
0
0
0
0
2
0
4
2
3
4
1
2
3
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
NW
14
2.3
NW
13
2.5
NNW
9
3
NNW
8
2.5
NNW
8
3.5
NNW
9
3.5
NNW
9
3.5
NNW
8
3.5
NNW
9
3
NNW
9
4.5
NNW
10
3
NNW
9
1.6
WNW
17
1.3
WNW
16
1.5
WNW
16
1.3
WNW
14
1.5
WNW
14
1.3
WNW
14
1.1
WNW
13
2.3
NNW
8
2.5
NNW
8
Wave Graph
Metric surfscale
Energy kJ
1214
1806
947
1206
845
1951
1847
1485
1631
1672
3623
1764
1454
881
1040
712
874
561
440
616
1031
Wind (km/h)
10
NW
10
NNW
5
NNE
20
NNW
30
N
30
N
35
N
35
N
30
N
20
N
50
NNW
0
NE
15
NNW
5
NNW
5
ESE
10
NNW
10
N
5
ESE
15
NNW
30
N
15
NNE
Wind State
on
cross-on
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
on
on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
cross
High Tide
11:05AM1.87m
11:14PM1.75m
11:37AM1.97m
00:06AM1.70m
12:06PM2.01m
00:54AM1.64m
12:34PM2.02m
1:40AM1.56m
1:01PM2.00m
2:27AM1.48m
1:29PM1.94m
3:15AM1.39m
1:58PM1.87m
4:07AM1.31m
Low Tide
5:23PM0.32m
5:30AM0.21m
6:09PM0.13m
6:06AM0.36m
6:50PM-0.00m
6:41AM0.51m
7:29PM-0.08m
7:14AM0.67m
8:08PM-0.10m
7:47AM0.82m
8:47PM-0.08m
8:21AM0.94m
9:29PM-0.01m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
—
—
7:20
—
—
7:22
—
—
7:22
—
—
7:24
—
—
7:24
—
—
7:26
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:47
—
—
6:45
—
—
6:44
—
—
6:43
—
—
6:40
—
—
6:39
—
—
6:37
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
16
15
13
14
14
13
13
13
13
12
15
15
14
15
13
13
13
12
12
13
12
Feels °C
15
13
12
11
10
7
6
5
5
7
6
6
9
11
10
9
10
10
9
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)
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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