Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Third Reef Surf Forecast and Surf Report

Issued: 4 am 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
13.9° C
0.5° 

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 23 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: Sunday 26 Jul, 8AM (local time) - 4.5ft (1.3m), 20s period, SSW swell with 1,267 kJ wave energy.
  • Next surfable swell (1★+): Thursday 23 Jul, 11PM (local time) - 2ft (0.6m), 26s 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 Thursday (Jul 23) at 11PM. The primary swell is predicted to be 0.6m and 26s period with a secondary swell of 0.8m and 14s. 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 1.3m 20s and forecast to arrive on Sunday (Jul 26) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 18s period and expected on Wednesday (Jul 29) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 23rd Jul)2ft (0.6m) 26s
Best Surf 8AM (Sat 25th Jul)3.5ft (1.1m) 21s
Most Powerful 8AM (Sun 26th Jul)4.5ft (1.3m) 20s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s shaping up for the next couple of weeks.

Right off the bat, we’ve got a bit of a flat spell up ahead. The first surf we can really talk about doesn’t show up until Thursday the 23rd of July, and even then, it’s a pretty grim start. For the first few days, the swell is small and the wind is a pain. The combined swell energy is moderate to weak (340), and the wind is cross-onshore most of the time, messing up any chance of clean waves. Honestly, it’s a tough watch.

We get a bit of a pulse on Friday the 24th of July with a SSW swell that’s got some serious period to it – 24 seconds of groundswell. The height’s only around 2ft to 3ft, but the energy jumps up (655 to 1337), which is a sign of some proper juice. However, the wind stays cross-onshore, so it’s going to be bumpy. The swell direction is SSW, but this spot really wants it from the WNW, so it’s not going to line up perfectly. Not the best.

Saturday the 25th and Sunday the 26th of July see the swell a little bigger, around 4ft to 4ft, but still with that cross-onshore wind. The period drops from 21 seconds to 19 seconds, still solid groundswell, but the consistency is poor. The energy is strong (1302, 1228, 1209), but the wind is a buzzkill. It’s washout territory.

The whole first week is a write-off, really. From Monday the 27th of July through to Thursday the 30th of July, the wind picks up even more, gusting to 30 km/h, and the surf quality stays poor. The swell is there, between 3ft and 4ft, but it’s choppy, lumpy, and cross-onshore. It’s one of those stretches where you’d be better off checking the kite forecast.

Now, there’s a glimmer of hope if you’re willing to wait. Wednesday the 5th of August and Thursday the 6th of August start to look a bit more interesting. The swell builds a bit, hitting 6ft to 7ft from the NW, and the period settles at 10 seconds. That’s a decent swell, but it’s getting up there in size – over 5ft, so it’s not for beginners, and if it hits 8ft, it’s expert-only. The real standout, though, is Thursday the 6th of August in the afternoon. For the first time in the whole forecast, we get glassy conditions. The wind is from the SW at just 5 km/h, and it’s labeled “glass.” The swell is 5ft from the NW, and the combined energy is moderate (535). The wind is finally offshore, and the swell direction (NW) is what the spot is built for. This is the best wave on offer. It’s not huge, but it’ll be clean, lined up, and a proper surf. The water temperature is sitting at 14°C with a normal anomaly of 0.5°C, so it’s about average for this time of year – nothing unusual there.

The only break in the game is Third Reef. It’s an exposed reef break, so it needs the right swell direction. It’s fairly consistent, but crowds are possible, and it’s an intermediate-level spot. The water’s cold, but the glassy afternoon on the 6th of August is the one to circle. The build-up to that is a long grind, but it’s worth holding out for.

Stay patient, and keep an eye on that Thursday afternoon. The rest of the window is a slog.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Sat afternoon, min 12°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
3
1
2
3
2
2
3
1
0
4
1
0
4
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)
0.8
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
1.1
SW
21
1.1
SW
20
1.2
SW
19
1.1
SW
19
1.1
SW
18
1.2
SSW
18
1.3
SSW
18
1.2
SSW
19
1.1
SW
17
1.3
SSW
18
1.2
SSW
17
1.1
SSW
16
1
SSW
16
0.9
SSW
16
Wave Graph
Metric surfscale
Energy kJ
261
233
447
374
964
558
1221
1051
872
1100
863
719
845
1104
973
687
1081
798
635
539
436
Wind (km/h)
10
W
10
WNW
5
NE
10
W
15
WNW
5
NNE
15
WNW
15
WNW
10
NE
15
WNW
20
WNW
15
NNE
20
NW
20
NW
10
NNE
20
NW
30
NNW
15
N
25
NW
30
NNW
15
N
Wind State
on
cross-on
cross-off
on
cross-on
glassy
on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross
cross-on
cross-on
cross-off
High Tide
8:45AM1.11m
7:18PM1.80m
9:56AM1.17m
8:07PM1.82m
10:48AM1.23m
8:54PM1.86m
11:29AM1.29m
9:38PM1.91m
12:03PM1.34m
10:20PM1.94m
12:35PM1.40m
11:00PM1.95m
1:05PM1.45m
11:40PM1.93m
Low Tide
12:38PM0.91m
2:59AM0.13m
1:37PM0.99m
3:49AM0.03m
2:38PM1.02m
4:32AM-0.05m
3:34PM1.01m
5:11AM-0.12m
4:23PM0.98m
5:46AM-0.16m
5:08PM0.94m
6:19AM-0.17m
5:49PM0.89m
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
6:07
6:07
6:09
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:37
8:37
8:36
8:35
8:34
8:32
 mm
Temp °C
15
15
14
15
15
14
15
16
15
16
17
18
18
20
20
19
23
20
19
22
19
Feels °C
14
14
14
13
13
13
13
14
14
14
14
17
15
16
17
16
18
17
15
17
16
  • 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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