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Surf Forecasts:

Third Reef surfForecast / CAL – Humboldt / USA

information circle12 Day Weather and Surf, issued 9 pm Monday 19 Jan 2026 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
12.7° C
 (Which is 1.2°C warmer than normal for this time of year)

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 Tuesday (Jan 20) at 4AM. The primary swell is predicted to be 0.9m and 17s period with a secondary swell of 1.0m and 13s. 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 1.7m 14s and forecast to arrive on Wednesday (Jan 21) at 1AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Tuesday (Jan 27) at 4AM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Tue 20th Jan)3ft (0.9m) 17s
Best Surf 7AM (Tue 20th Jan)3.5ft (1.1m) 16s
Most Powerful 1AM (Wed 21st Jan)5.5ft (1.7m) 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 Mostly dry. Very mild (max 14°C on Tue morning, min 11°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Sat morning, min 9°C on Fri night). Wind will be generally light.

Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Mon
26
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
4
4
4
3
3
3
2
1
4
3
3
4
3
1
2
2
2
2
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
WNW
1.4
WNW
1.5
WNW
1.7
W
1.5
W
1.4
W
1.2
W
0.9
WNW
0.9
WNW
1.9
NW
0.8
WNW
1.3
WNW
1.3
WNW
1.3
WNW
1.2
W
1.1
W
1
W
0.9
W
0.8
W
0.7
WNW
0.7
WNW
Period(s) (?)18161514131312161481615141414131211111615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5229298981099759623404362371470354828724665529402299205151226191
Wind
(km/h)
5
NNE
0
NNE
5
W
5
W
0
ESE
5
W
5
E
5
NNE
10
NW
10
NNE
5
NE
10
NW
10
NE
10
ENE
10
NW
10
ENE
10
ESE
5
SE
15
SE
15
SE
15
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglassglassglassglassglasscrosscross-
on		cross-
off		glasscross-
on		cross-
off		cross-
off		cross-
on		offoffcross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
12:50AM
1.61
11:29AM
2.03
1:18AM
1.66
12:11PM
1.94
1:46AM
1.72
12:57PM
1.82
2:15AM
1.79
1:49PM
1.66
2:46AM
1.86
2:51PM
1.48
3:23AM
1.93
4:10PM
1.32
4:07AM
2.00
5:52PM
1.23
Low Tide
/ height (m)
5:40AM
0.96
6:34PM
-0.06
6:24AM
0.90
7:05PM
0.04
7:12AM
0.82
7:36PM
0.18
8:07AM
0.72
8:09PM
0.35
9:09AM
0.60
8:45PM
0.55
10:18AM
0.47
9:26PM
0.74
11:30AM
0.30
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Mon
26
Sunrise-7:33--7:33--7:31--7:31--7:31--7:30--7:30-
Sunset--5:20--5:21--5:22--5:23--5:24--5:25--5:27
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
cloud
clear
Rain (mm)
---------------------
Temp. °C111413121312131414101211101814121414131413
Feels °C (?)10131211111112111271087141191110101010
  • 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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Latest Updates

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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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