Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Third Reef Surf Forecast and Surf Report

Issued: 10 pm 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
13.5° C
0.2° 

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 Jul 2026:

  • Best quality surf: Saturday 25 Jul, 8AM (local time) - 3.5ft (1.1m), 21s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 25 Jul, 11AM (local time) - 4ft (1.2m), 21s period, SSW swell with 1,221 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 21 Jul, 8AM (local time) - 2.5ft (0.7m), 16s period with SW 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 Tuesday (Jul 21) at 8AM. The primary swell is predicted to be 0.7m and 16s period. 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 1.2m 21s and forecast to arrive on Saturday (Jul 25) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 14s period and expected on Tuesday (Jul 21) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 21st Jul)2.5ft (0.7m) 16s
Best Surf 8AM (Sat 25th Jul)3.5ft (1.1m) 21s
Most Powerful11AM (Sat 25th Jul)4ft (1.2m) 21s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Tue morning, min 14°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Sun afternoon, min 12°C on Thu night). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
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
2
2
2
2
1
1
3
2
3
3
2
0
3
0
0
4
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
SW
16
0.8
SSW
16
0.7
SW
14
0.9
SSW
14
0.8
SSW
15
0.6
SSW
13
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.6
SSW
26
0.6
SSW
24
0.9
SSW
24
0.7
SW
23
1.2
SSW
21
1
SW
21
1.1
SW
20
1.2
SSW
19
0.9
SSW
19
1
SW
18
Wave Graph
Metric surfscale
Energy kJ
367
310
208
312
279
123
217
233
233
447
374
964
558
1221
890
872
1004
657
621
Wind (km/h)
5
N
5
W
5
WNW
10
SE
5
SW
15
SSE
5
SSE
5
SW
5
WNW
5
NE
10
W
5
W
5
NE
15
WNW
20
WNW
15
NNE
20
NW
30
NW
15
N
Wind State
glassy
glassy
glassy
cross-off
glassy
cross-off
cross-off
cross-on
on
cross-off
on
on
glassy
on
cross-on
cross-off
cross-on
cross-on
cross-off
High Tide
5:40AM1.19m
5:44PM1.78m
7:13AM1.10m
6:30PM1.78m
8:45AM1.11m
7:18PM1.80m
9:56AM1.17m
8:07PM1.82m
10:48AM1.23m
8:54PM1.86m
11:29AM1.29m
9:38PM1.91m
Low Tide
11:52PM0.42m
11:03AM0.61m
00:59AM0.33m
11:47AM0.78m
2:02AM0.23m
12:38PM0.91m
2:59AM0.13m
1:37PM0.99m
3:49AM0.03m
2:38PM1.02m
4:32AM-0.05m
3:34PM1.01m
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:05
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:40
8:39
8:38
8:37
8:37
8:37
8:36
 mm
Temp °C
17
19
19
18
18
18
16
15
15
14
15
15
14
16
16
17
18
21
19
Feels °C
16
18
18
18
18
17
15
16
14
14
14
14
14
14
14
16
15
16
15
  • 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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