Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Issued: 4 am 20 Jun 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
11.9° C

Slightly cooler than normal

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 20 Jun 2026:

  • Best quality surf: Saturday 20 Jun, 11PM (local time) - 4ft (1.2m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 24 Jun, 8PM (local time) - 3.5ft (1.1m), 17s period, SSW swell with 681 kJ wave energy.
  • Next surfable swell (1★+): Saturday 20 Jun, 11PM (local time) - 4ft (1.2m), 16s period with SSW 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 Saturday (Jun 20) at 11PM. The primary swell is predicted to be 1.2m and 16s period with a secondary swell of 1.1m and 9s. Another secondary swell of 1.6m and 7s is also forecast. 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 1.1m 17s and forecast to arrive on Wednesday (Jun 24) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 12s period and expected on Saturday (Jun 20) at 2PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sat 20th Jun)4ft (1.2m) 16s
Best Surf11PM (Sat 20th Jun)4ft (1.2m) 16s
Most Powerful 8PM (Wed 24th Jun)3.5ft (1.1m) 17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sat night, min 11°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Thu afternoon, min 10°C on Wed night). Winds increasing (calm on Tue night, fresh winds from the NW by Thu afternoon).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
3
0
2
3
2
3
3
2
3
3
2
1
1
0
0
1
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
14
1.2
SSW
16
1.1
SSW
16
0.9
SSW
16
1.7
NW
8
2
NW
8
1.3
NW
9
1.4
NW
8
0.7
SW
16
0.7
SSW
16
0.8
SSW
16
0.7
SSW
19
0.8
SSW
18
1.9
NW
8
0.9
SSW
16
0.8
SSW
16
1
SSW
16
1
SSW
15
0.8
SSW
15
0.7
SSW
19
1
SSW
17
Wave Graph
Metric surfscale
Energy kJ
357
641
620
430
401
540
264
277
268
229
318
375
356
479
380
295
475
422
248
325
622
Wind (km/h)
15
WNW
15
NW
15
N
15
WNW
10
NW
10
N
10
WNW
5
WNW
5
NNW
5
SSW
5
WSW
5
N
10
WNW
15
NNW
15
N
25
NW
30
NNW
15
N
20
WNW
25
WNW
10
N
Wind State
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
glassy
glassy
cross-on
glassy
glassy
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
High Tide
5:17PM1.63m
4:40AM1.38m
6:02PM1.69m
6:02AM1.20m
6:45PM1.74m
7:31AM1.11m
7:26PM1.78m
8:54AM1.10m
8:06PM1.82m
10:03AM1.14m
8:44PM1.85m
10:59AM1.19m
9:22PM1.87m
Low Tide
10:24AM-0.08m
11:16PM0.64m
11:10AM0.14m
00:31AM0.50m
11:56AM0.36m
1:38AM0.34m
12:42PM0.55m
2:37AM0.18m
1:29PM0.71m
3:29AM0.04m
2:18PM0.82m
4:14AM-0.08m
3:08PM0.90m
4:54AM-0.17m
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:47
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:47
8:47
8:47
8:49
8:49
8:49
8:49
 mm
Temp °C
14
14
15
15
14
14
15
14
14
14
14
13
15
19
20
17
21
18
17
16
17
Feels °C
14
11
14
12
12
13
15
13
13
13
13
13
15
16
15
12
15
14
13
11
15
Swell 1
Height (m)
Direction
Period (s)
1
NW
10
1.2
SSW
16
1.1
NW
9
1.5
NW
9
0.9
SSW
14
1.3
NW
8
1.3
NW
9
1.4
NW
8
1.3
NW
8
1.3
NW
8
1.2
NW
8
1.3
NW
9
1.5
NW
9
0.8
SSW
18
0.9
SSW
16
0.8
SSW
16
1
SSW
16
1
SSW
15
0.8
SSW
15
0.8
SSW
14
1
SSW
17
Energy kJ
188
641
211
336
325
250
262
277
224
224
201
281
320
352
380
295
475
422
242
239
622
Swell 2
Height (m)
Direction
Period (s)
0.9
SSW
14
0.4
S
12
1.1
SSW
16
0.9
SSW
16
0.4
SSW
19
0.9
SSW
14
0.8
SSW
14
0.7
SSW
14
0.7
SW
16
0.7
SSW
16
0.8
SSW
16
0.8
SSW
15
0.8
SSW
18
0.7
SSW
15
0.5
SSW
13
0.5
SSW
13
0.2
SSW
21
0.3
WNW
10
0.6
SSW
19
0.7
SSW
19
0.6
WNW
12
Energy kJ
357
42
620
430
148
330
264
173
268
229
318
272
356
188
99
101
45
19
248
325
90
Swell 3
Height (m)
Direction
Period (s)
0.5
SSW
18
0.3
WNW
10
0.4
SW
20
0.4
SSW
20
0.2
S
11
0.6
SSW
18
0.6
SSW
18
0.4
SSW
18
0.6
SSW
13
0.6
SSW
13
0.6
SSW
20
0.7
SSW
19
0.7
SSW
15
0.2
S
12
0.1
S
11
0.3
WNW
10
0.1
S
11
0.1
S
11
0.3
WNW
10
0.1
W
15
0.1
S
11
Energy kJ
176
20
98
149
9
211
209
121
116
116
298
375
188
11
2
21
2
2
18
4
2
Wind waves
Height (m)
Direction
Period (s)
1.3
NW
10
1.5
NW
7
1.7
NW
8
2
NW
8
1.9
NW
8
1.5
NW
9
1.6
NW
8
1.7
NW
6
0.8
NW
6
0.6
NW
4
0.9
WNW
4
0.8
WNW
11
Energy kJ
290
231
401
540
479
334
291
233
51
16
31
160
Nearest Offshore or Glassy
Rating
(10 max)
2
1
4
2
3
4
2
3
3
3
3
3
3
4
3
1
1
2
2
2
3
Distance (km)
283
929
3
191
3
3
195
0
0
116
0
0
169
3
3
191
386
0
124
98
3
Best forecast wave conditions in Humboldt County
Rating
(10 max)
4
3
4
3
3
3
3
3
4
3
2
2
2
3
Best forecast wave conditions in United States
Rating
(10 max)
3
2
4
3
3
4
2
3
3
3
3
3
3
4
3
3
2
4
2
2
3
Header Global
Rating
(10 max)
5
4
9
5
7
5
7
5
5
5
6
7
6
5
5
7
5
5
6
9
4
  • 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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