Surf Break

Lat Long: 40.03° N 124.08° W

Third Reef Surf Forecast and Surf Report

Issued: 10 pm 18 Oct 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
14.0°C
0.7° 

Third Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Third Reef surf forecast from 19 Oct 2026:

  • Best quality surf: Monday 19 Oct, 8AM (local time) - 5ft (1.6m), 12s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 20 Oct, 5AM (local time) - 7ft (2.2m), 13s period, WNW swell with 1,699 kJ wave energy.
  • Next surfable swell (1★+): Monday 19 Oct, 8AM (local time) - 5ft (1.6m), 12s period with WNW swell.

Best Forecast Surf Conditions for Third Reef this week:

The surf forecast for Third Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Oct 19) at 8AM. The primary swell is predicted to be 1.6m and 12s period with a secondary swell of 1.1m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Third Reef in the next 16 days are 2.2m 13s and forecast to arrive on Tuesday (Oct 20) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 14s period and expected on Thursday (Oct 22) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 19th Oct)5ft (1.6m) 12s
Best Surf 8AM (Mon 19th Oct)5ft (1.6m) 12s
Most Powerful 5AM (Tue 20th Oct)7ft (2.2m) 13s

Table - best surf conditions forecast for Third Reef over the next 16 days.


Short Range Forecast

Mostly dry. Very mild (max 15°C on Wed morning, min 9°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Thu afternoon, min 7°C on Fri morning). Wind will be generally light.

Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
3
4
4
3
3
2
2
2
2
0
4
2
0
3
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
WNW
12
1.6
WNW
12
1
SSW
15
1.8
NW
14
2.3
WNW
12
2
WNW
11
1
SSW
15
1
SSW
15
1.1
SSW
15
0.8
SSW
14
1
SSW
14
0.9
SSW
15
1.2
NW
12
1.4
NW
11
1.2
WNW
11
1.5
NW
11
1.3
NW
11
1.1
NW
10
1
NW
10
Wave Graph
Metric surfscale
Energy kJ
934
646
427
1179
1496
1014
456
456
574
247
449
355
442
512
317
505
361
270
192
Wind (km/h)
5
NNE
5
SSE
0
NW
5
ENE
0
SE
5
NW
10
ENE
10
S
10
WNW
10
ESE
10
WNW
20
NW
15
NNE
10
N
15
NW
10
NE
5
WNW
5
NNW
10
NNE
Wind State
cross-off
glassy
glassy
glassy
glassy
cross-on
cross-off
cross
on
off
on
cross-on
cross-off
cross
cross-on
cross-off
on
cross-on
cross-off
High Tide
8:04AM1.34m
6:03PM1.44m
8:36AM1.42m
7:23PM1.45m
9:02AM1.52m
8:29PM1.48m
9:26AM1.64m
9:26PM1.53m
9:51AM1.76m
10:19PM1.57m
10:18AM1.88m
11:09PM1.60m
Low Tide
00:32AM0.24m
12:45PM1.06m
1:26AM0.26m
1:54PM0.92m
2:13AM0.27m
2:48PM0.73m
2:54AM0.30m
3:33PM0.51m
3:32AM0.35m
4:15PM0.27m
4:09AM0.42m
4:55PM0.05m
4:44AM0.51m
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
7:30
—
—
7:31
—
—
7:31
—
—
7:33
—
—
7:35
—
—
7:35
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
6:30
—
—
6:29
—
—
6:28
—
—
6:27
—
—
6:24
—
—
6:23
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
10
12
12
12
14
14
14
15
15
13
14
16
12
13
15
13
16
16
15
Feels °C
9
11
11
11
13
11
11
11
14
12
12
12
9
10
11
9
13
14
12
  • 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 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 16 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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