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Surf Forecasts:

Third Reef surfForecast / CAL – Humboldt / USA

information circle12 Day Weather and Surf, issued 4 am Thursday 23 Oct 2025 PDT
Forecast update in hr  min  s Forecast update imminent
Third Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Third Reef sea temperature is
14.1° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Third Reef this week:

The surf forecast for Third Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 23) at 8AM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.4m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Third Reef in the next 12 days are 4.0m 14s and forecast to arrive on Sunday (Oct 26) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Oct 26) at 11AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 23rd Oct)6ft (1.8m) 13s
Best Surf 8PM (Thu 23rd Oct)10ft (3.0m) 17s
Most Powerful 2AM (Sun 26th Oct)13ft (4.0m) 14s

Table - best surf conditions forecast for Third Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 16mm), heaviest on Fri night. Very mild (max 16°C on Fri morning, min 11°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 18°C on Tue morning, min 11°C on Sun morning). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
3
5
4
5
4
3
2
6
5
4
4
4
4
3
2
2
3
0
0
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.1
WNW
2.3
WNW
3
WNW
3
WNW
3
WNW
3.5
WNW
3
WNW
3
WNW
4
WNW
3
WNW
3.5
W
2.5
W
2
W
1.9
WNW
1.7
WNW
1.6
WNW
1.6
NW
1.3
WNW
1.1
NW
0.9
NW
0.9
WNW
Period(s) (?)131316161515151414141312121211121211101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1383187643484108455745573314362956453663367821291117921737710660396281170148
Wind
(km/h)
5
WNW
10
WNW
10
ENE
10
S
15
SE
15
SE
20
S
15
W
10
E
10
SE
15
ESE
10
NNE
5
NE
5
NNW
5
ENE
5
WNW
10
NW
10
NNE
10
NNW
20
NNW
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		offcrosscross-
off		cross-
off		crossonoffcross-
off		cross-
off		cross-
off		glassglassglasscross-
on		cross-
on		cross-
off		cross-
on		cross-
on		cross-
off
High Tide
/ height (m)
12:21PM
1.84
2:10AM
1.42
12:48PM
1.81
2:58AM
1.36
1:18PM
1.77
3:52AM
1.30
1:51PM
1.72
4:56AM
1.27
2:31PM
1.65
6:09AM
1.28
3:23PM
1.58
7:09AM
1.33
4:35PM
1.50
Low Tide
/ height (m)
7:25PM
-0.05
6:55AM
0.89
8:03PM
-0.03
7:24AM
0.98
8:44PM
0.02
7:54AM
1.06
9:32PM
0.07
8:35AM
1.13
10:27PM
0.12
9:44AM
1.17
11:25PM
0.16
11:23AM
1.15
12:22AM
0.18
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Sunrise7:35--7:35--7:37--7:37--7:39--7:39--7:41--
Sunset-6:24--6:23--6:22--6:21--6:20--6:19--6:16-
clear
clear
clear
clear
cloud
heavy rain
light rain
rain showers
part cloud
cloud
light rain
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
-----1213--2----------
Temp. °C151413161515141412121213141515181717192217
Feels °C (?)1411121414121211119911141315171517181916
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for CAL - Humboldt

  1. weather stationWind Update Continuing clean conditions at Third Reef (calm at Fortuna 60 km from Third Reef). 1.9m 13s groundswell from the WNW to make surfable waves.

    1 hour 12 minutes ago Third Reef
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Third Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Third Reef at:
surf-forecast.com

Information about the Third Reef Surf forecast

The above surf forecast table for Third Reef provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Third Reef can be found by selecting the local surf guide option on the grey menu. Our Third Reef 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 (Third Reef) 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 Third Reef 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.

Third Reef is 85 km (53 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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