Harbor Entrance at Eureka surfForecast / CAL – Humboldt / USA

information circle12 Day Weather and Surf, issued 9 am Sunday 07 Dec 2025 PST
Forecast update in hr  min  s Forecast update imminent
Harbor Entrance at Eureka surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Harbor Entrance at Eureka sea temperature is
11.5° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Harbor Entrance at Eureka this week:

The surf forecast for Harbor Entrance at Eureka over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 07) at 4PM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.9m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Harbor Entrance at Eureka in the next 12 days are 2.5m 16s and forecast to arrive on Thursday (Dec 11) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 14s period and expected on Thursday (Dec 11) at 1PM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Sun 7th Dec)4ft (1.2m) 11s
Best Surf 1AM (Wed 10th Dec)10ft (3.0m) 14s
Most Powerful10AM (Thu 11th Dec)8ft (2.5m) 16s

Table - best surf conditions forecast for Harbor Entrance at Eureka over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 16°C on Tue morning, min 12°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 16°C on Wed morning, min 11°C on Thu afternoon). Wind will be generally light.

Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
3
2
3
3
4
4
4
5
4
3
3
4
2
4
3
2
3
2
1
3
Swell
Height Map
Wave Height (m) & direction (?)
1.4
WNW
1.2
WNW
1.5
WNW
1.1
NW
2.2
NW
2
WNW
2.5
WNW
2.5
WNW
3
WNW
2.5
WNW
2.5
WNW
2.5
WNW
2.5
WNW
2.5
WNW
2.4
WNW
2
WNW
1.8
WNW
1.5
WNW
1.2
WNW
1.2
WNW
1.3
W
Period(s) (?)12119111312131214131313161514131312121112
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4973633783201659106221512116305220812196238032672937229713771041599404356488
Wind
(km/h)
5
SSE
5
ENE
5
ESE
5
ESE
5
NNE
5
ESE
5
ESE
5
NNE
5
E
5
N
10
NNE
5
NNE
5
N
15
NNE
5
ENE
5
N
10
N
5
E
0
NNE
10
N
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offglasscross-
off
glasscross-
on
cross-
off
glassglasscross-
off
glasscrosscrosscross-
on
cross-
on
glasscross-
on
cross-
on
glassglasscross-
on
off
High Tide
/ height (m)
12:30PM
2.27
2:52AM
1.54
1:22PM
2.10
3:44AM
1.56
2:19PM
1.87
4:35AM
1.61
3:22PM
1.63
5:25AM
1.67
4:36PM
1.40
6:10AM
1.73
6:01PM
1.24
6:53AM
1.80
7:28PM
1.17
Low Tide
/ height (m)
8:07PM
-0.54
7:48AM
1.02
8:56PM
-0.37
8:52AM
1.02
9:45PM
-0.18
10:05AM
0.98
10:34PM
0.03
11:23AM
0.88
11:22PM
0.25
12:40PM
0.73
12:10AM
0.46
1:47PM
0.53
1:00AM
0.64
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunrise7:26--7:28--7:28--7:28--7:30--7:31--7:31--
Sunset-4:49--4:49--4:49--4:49--4:49--4:49--4:49-
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C141413151413161515161513131211121211131211
Feels °C (?)1214121313121514141515131010101010101099
  • 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 12 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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