Third Reef surfForecast / CAL – Humboldt / USA

information circle12 Day Weather and Surf, issued 3 am Wednesday 03 Dec 2025 PST
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
13.1° 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 Wednesday (Dec 03) at 7AM. The primary swell is predicted to be 1.9m and 15s period with a secondary swell of 0.9m and 8s. 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 2.5m 14s and forecast to arrive on Tuesday (Dec 09) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 12s period and expected on Wednesday (Dec 10) at 4AM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 3rd Dec)6ft (1.9m) 15s
Best Surf 7AM (Wed 3rd Dec)6ft (1.9m) 15s
Most Powerful 7PM (Tue 9th Dec)8ft (2.5m) 14s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 17°C on Fri morning, min 10°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 14°C on Sat morning, min 11°C on Sun night). Wind will be generally light.

Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
1
3
2
1
1
1
0
1
3
4
3
3
0
2
2
1
4
4
3
3
Swell
Height Map
Wave Height (m) & direction (?)
1.8
WNW
1.5
W
1.2
WNW
1
WNW
1
W
1
W
1
W
1
W
1.2
WNW
1.3
WNW
1.7
WNW
1.6
WNW
1.5
WNW
1.2
WNW
0.8
WNW
1.3
WNW
1.6
WNW
2.2
NW
2.4
WNW
2.5
NW
2.5
WNW
Period(s) (?)14141312121211111113131212111191113141413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)13828495153292992892602473565639466805793371562666171736209425962323
Wind
(km/h)
10
NE
10
NNW
10
NNE
5
ENE
10
NNW
15
N
15
NNW
15
NNW
10
N
5
W
5
WSW
5
S
0
WNW
10
NW
10
NNE
5
NE
15
NW
10
NE
5
NE
10
NNW
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
cross-
off
glasscrosscrosscrosscross-
on
crossglassglassglassglasscross-
on
cross-
off
cross-
off
cross-
on
cross-
off
cross-
off
cross-
on
cross
High Tide
/ height (m)
10:45PM
1.54
9:29AM
2.38
11:42PM
1.57
10:16AM
2.41
12:37AM
1.58
11:05AM
2.37
1:31AM
1.58
11:56AM
2.26
2:25AM
1.58
12:49PM
2.10
3:17AM
1.59
1:46PM
1.89
Low Tide
/ height (m)
4:04PM
-0.44
3:24AM
0.87
4:53PM
-0.58
4:14AM
0.93
5:42PM
-0.62
5:05AM
0.97
6:32PM
-0.58
5:58AM
1.01
7:22PM
-0.46
6:57AM
1.03
8:13PM
-0.29
8:06AM
1.03
9:05PM
-0.10
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Sunrise7:20--7:20--7:22--7:22--7:24--7:24--7:26--
Sunset-4:51--4:51--4:50--4:50--4:50--4:50--4:50-
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
part cloud
cloud
light rain
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
Rain (mm)
----------11---------
Temp. °C141410131312171614141313141413141412161715
Feels °C (?)111169101013141414131313131112119141614
  • 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 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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