Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Issued: 10 am 21 Jun 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
12.0° 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 21 Jun 2026:

  • Best quality surf: Sunday 21 Jun, 8PM (local time) - 3ft (0.9m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Sunday 28 Jun, 5PM (local time) - 7.5ft (2.3m), 8s period, NW swell with 754 kJ wave energy.
  • Next surfable swell (1★+): Sunday 21 Jun, 8PM (local time) - 3ft (0.9m), 14s 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 Sunday (Jun 21) at 8PM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.4m and 19s. Another secondary swell of 1.5m and 8s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Third Reef in the next 16 days are 2.3m 8s and forecast to arrive on Sunday (Jun 28) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 18s period and expected on Sunday (Jun 28) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 21st Jun)3ft (0.9m) 14s
Best Surf 8PM (Sun 21st Jun)3ft (0.9m) 14s
Most Powerful 5PM (Sun 28th Jun)7.5ft (2.3m) 8s

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 Sun afternoon, min 12°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Wed night, min 11°C on Wed night). Winds increasing (calm on Wed morning, fresh winds from the NW by Thu afternoon).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
1
3
2
2
2
3
2
0
2
0
0
2
1
0
3
0
0
1
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
16
1.6
NW
8
0.9
SSW
14
0.8
SSW
14
1.3
NW
8
0.7
SW
16
0.7
SSW
16
0.8
SSW
16
0.7
SSW
19
0.9
SSW
18
0.8
SSW
18
0.9
SSW
16
0.9
SSW
16
1
SSW
16
1
SSW
15
0.8
SSW
15
0.7
SSW
19
1
SSW
17
1.6
WNW
10
2
WNW
10
0.9
SSW
16
Wave Graph
Metric surfscale
Energy kJ
437
362
330
264
239
268
229
318
375
448
356
380
371
475
422
248
325
622
452
718
408
Wind (km/h)
15
WNW
10
NW
10
N
10
WNW
5
W
5
NNW
5
W
5
WNW
5
NNW
10
W
15
NW
15
N
25
NW
30
NW
10
NNE
15
WNW
25
WNW
10
N
25
NW
30
NNW
20
N
Wind State
cross-on
cross-on
cross
on
glassy
cross
glassy
on
glassy
on
cross-on
cross
cross-on
cross-on
cross-off
cross-on
on
cross
cross-on
cross-on
cross
High Tide
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
11:47AM1.24m
9:59PM1.90m
Low Tide
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
3:56PM0.94m
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:48
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
8:49
8:49
8:49
8:49
8:49
 mm
Temp °C
14
15
13
14
14
14
14
14
14
15
19
21
17
20
18
16
15
14
17
18
14
Feels °C
11
14
12
13
12
14
14
13
14
15
16
16
13
14
14
14
12
11
12
11
8
Swell 1
Height (m)
Direction
Period (s)
1.3
NW
9
0.9
SSW
14
0.9
SSW
14
1.2
NW
8
1.3
NW
8
1.1
NW
8
1.1
NW
8
0.9
NW
8
1
NW
8
1.2
NW
8
0.8
SSW
15
0.9
SSW
16
0.9
SSW
16
1
SSW
16
1
SSW
15
0.8
SSW
15
0.8
SSW
14
1.3
WNW
9
0.8
SSW
18
0.9
SSW
17
0.9
SSW
16
Energy kJ
275
362
330
196
239
165
131
94
111
196
252
380
371
475
422
242
236
255
390
469
397
Swell 2
Height (m)
Direction
Period (s)
0.9
SSW
16
0.4
SSW
19
0.6
SSW
18
0.8
SSW
14
0.7
SSW
14
0.7
SW
16
0.7
SSW
16
0.8
SSW
16
0.8
SSW
15
0.9
SSW
18
0.8
SSW
18
0.5
SSW
13
0.4
SSW
13
0.2
SSW
21
0.3
WNW
10
0.6
SSW
19
0.7
SSW
19
1
SSW
17
0.5
SSW
14
0.1
S
20
0.2
S
18
Energy kJ
430
148
211
264
173
268
229
318
272
448
356
99
68
45
19
248
325
622
105
7
25
Swell 3
Height (m)
Direction
Period (s)
0.4
SSW
20
0.3
S
11
0.2
SSE
15
0.6
SSW
18
0.4
SSW
18
0.6
SSW
13
0.6
SSW
13
0.6
SSW
20
0.7
SSW
19
0.8
SSW
14
0.2
WNW
11
0.2
WNW
8
0.3
WNW
11
0.1
S
11
0.2
WNW
7
0.3
WNW
10
0.1
W
15
0.1
S
10
0.2
S
20
0.1
S
10
Energy kJ
149
20
21
209
121
116
116
298
375
239
13
6
22
2
5
18
4
2
30
2
Wind waves
Height (m)
Direction
Period (s)
1.8
NW
8
1.6
NW
8
1.2
NW
8
1.4
NW
8
1.1
NW
8
1.2
NW
7
1.5
NW
6
0.8
NW
5
0.5
WNW
5
1
WNW
4
1.6
NW
9
1.6
WNW
10
2
WNW
10
1.8
NW
8
Energy kJ
437
341
196
253
131
147
131
26
12
40
406
452
718
408
Nearest Offshore or Glassy
Rating
(10 max)
2
3
3
2
3
3
2
3
3
3
3
3
2
2
2
1
2
4
1
2
3
Distance (km)
283
3
3
243
0
3
0
3
0
169
243
3
283
257
0
196
169
3
387
793
98
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
3
3
3
2
3
3
3
2
4
3
Best forecast wave conditions in United States
Rating
(10 max)
3
3
4
3
3
3
2
3
3
3
3
3
2
2
3
1
2
4
2
2
4
Header Global
Rating
(10 max)
7
5
6
5
6
5
7
9
8
6
6
5
5
5
5
5
5
5
5
6
6
  • 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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