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 14 Oct 2026 (local time)

Forecast update in  hr  min

Today's Harbor Entrance at Eureka sea temperature is
11.5°C
1.7° 

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 14 Oct 2026:

  • Best quality surf: Tuesday 20 Oct, 5AM (local time) - 11ft (3.5m), 13s period, WNW swell with offshore winds.
  • Most powerful swell: Tuesday 20 Oct, 8AM (local time) - 11ft (3.5m), 13s period, WNW swell with 3,810 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 14 Oct, 8PM (local time) - 4ft (1.2m), 13s period with WNW 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 (Oct 14) at 8PM. The primary swell is predicted to be 1.2m and 13s period. 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 13s and forecast to arrive on Tuesday (Oct 20) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 16s period and expected on Tuesday (Oct 20) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Wed 14th Oct)4ft (1.2m) 13s
Best Surf 5AM (Tue 20th Oct)11ft (3.5m) 13s
Most Powerful 8AM (Tue 20th Oct)11ft (3.5m) 13s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Thu morning, min 11°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Sat morning, min 8°C on Mon morning). Wind will be generally light.

Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
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
2
3
1
2
1
1
1
2
1
0
3
4
2
4
3
2
4
3
1
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
WNW
13
1.3
WNW
13
1.3
WNW
13
1.6
NW
12
1.4
NW
12
1.2
NW
12
0.9
WNW
11
0.9
WNW
11
0.9
WNW
12
1.2
WNW
12
1.1
WNW
11
1.6
WNW
12
2.4
NW
11
2.5
NW
13
2
WNW
12
1.7
WNW
12
1.4
NW
15
3
WNW
13
3
WNW
12
3
NW
12
3
NW
10
Wave Graph
Metric surfscale
Energy kJ
553
553
563
798
597
407
193
214
245
412
302
671
1414
2135
1182
793
805
2891
2781
2461
1430
Wind (km/h)
10
NNW
5
N
0
SSW
10
NNW
5
N
5
N
10
NNW
10
NNE
5
NE
10
N
20
N
5
WNW
5
NW
15
NNW
5
ESE
5
WNW
10
N
5
E
10
N
15
N
0
ENE
Wind State
cross-on
cross-on
glassy
on
cross-on
cross-on
cross-on
cross-on
glassy
cross-on
cross-on
glassy
glassy
cross-on
cross-off
glassy
cross-on
cross-off
cross-on
cross-on
glassy
High Tide
1:58PM1.87m
4:07AM1.31m
2:32PM1.79m
5:10AM1.25m
3:12PM1.69m
6:22AM1.23m
4:05PM1.59m
7:32AM1.25m
5:15PM1.51m
8:26AM1.33m
6:39PM1.46m
9:05AM1.42m
7:57PM1.46m
Low Tide
8:21AM0.94m
9:29PM-0.01m
8:57AM1.05m
10:15PM0.07m
9:41AM1.14m
11:09PM0.16m
10:39AM1.20m
00:10AM0.23m
11:58AM1.22m
1:12AM0.26m
1:22PM1.15m
2:09AM0.27m
2:34PM1.00m
2:58AM0.27m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
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—
7:26
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—
7:28
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—
7:28
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—
7:31
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—
7:31
—
—
7:33
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—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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6:37
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—
6:37
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—
6:35
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—
6:34
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—
6:31
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—
6:30
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—
6:29
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
13
13
16
20
17
14
16
13
11
13
13
11
12
11
10
12
12
10
10
12
11
Feels °C
9
10
14
16
14
12
13
10
10
11
11
8
11
9
8
11
9
8
7
9
8
  • 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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