Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Third Reef Surf Forecast and Surf Report

Issued: 4 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
14.4°C
0.1° 

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 10 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 8PM (local time) - 3.5ft (1.0m), 17s period, SW swell with glassy winds.
  • Most powerful swell: Monday 14 Sep, 8AM (local time) - 7.5ft (2.3m), 8s period, NW swell with 742 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 11PM (local time) - 2.5ft (0.7m), 18s 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 Wednesday (Sep 09) at 11PM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.8m and 8s. 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 Monday (Sep 14) 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 0.7m 12s period and expected on Thursday (Sep 10) at 5PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Wed 9th Sep)2.5ft (0.7m) 18s
Best Surf 8PM (Thu 10th Sep)3.5ft (1.0m) 17s
Most Powerful 8AM (Mon 14th Sep)7.5ft (2.3m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s take a good, hard look at what’s on the table for Third Reef. It’s going to be a long wait, but there’s a little light at the end of the tunnel.

Right now, we’re stuck in a pretty grim pattern. The wind is messy, mostly cross-onshore, and the swell is just not cooperating. The water temp is sitting at about 58°, which is pretty much normal for this time of year, so no surprises there. For the first week and a half, it’s a write-off. We’re looking at a solid 12 days where the surf is either poor or marginal, with a lot of choppy, lumpy conditions. The wind is going to be a constant problem, blowing from the NW and WNW at 9 to 19 mph, just ruining any chance of a clean face. The swell is there, but it’s short-period junk, mostly around 8 seconds, which just doesn’t have the grunt for a proper wave. The combined energy is moderate, but it’s all wasted on the wind. Don’t bother paddling out for this.

Things finally start to look interesting around Monday the 21st of September. The afternoon shows a huge shift: the wind drops to zero, going glassy. The swell is still a modest 3 ft from the SW, but the combined energy is getting up there (929). That’s a window to get a few clean, smooth ones. Nothing huge, but after all that chop, it’ll feel like a gift.

The real standout, the one you’ve been waiting for, is Tuesday the 22nd of September. This is the best day on offer. We’re looking at a solid 7 ft of swell, pushing from the NW. The wind is glassy again, both morning and afternoon, with the combined energy hitting a strong 1265. That’s proper power. This is a big swell, over 8 ft, so this is strictly for the experienced crew. The period is 10 seconds, which is decent, and the direction is right on the money for this reef. The water will be clean, the waves will have some serious punch. This is the day to circle on the calendar. The crowd situation at Third Reef can be an issue, so expect some company.

The good energy hangs around into Wednesday the 23rd. The swell drops a touch to 6 ft - 6 ft from the NW, but the wind is glassy again in the afternoon (837). This is still a very good day, especially for anyone who missed Tuesday. The swell is still a bit hefty for a beginner, but it’s a great option for intermediates and up.

The week winds down with a smaller, cleaner swell on Thursday the 24th. The morning is a bit onshore, but the afternoon turns glassy with a 5 ft NW swell. A nice, manageable way to end the run.

So, to sum it up: the first 12 days are a total bust. Don’t even think about it. The real action is from the 21st through the 24th of September. Tuesday the 22nd is the absolute best, with big, clean, powerful waves. Get your gear ready for that one.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Wed afternoon, min 11°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Mon afternoon, min 11°C on Sat night). Mainly fresh winds.

Wed
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
2
2
3
0
0
3
0
0
3
0
0
2
0
0
1
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)
0.7
SW
19
0.7
SW
18
0.9
SW
17
1
SW
17
1
SW
16
1
SW
16
1
SW
15
0.9
SSW
15
1
SW
14
0.9
SW
14
0.9
SW
14
1.7
NW
8
1.6
NW
8
1.7
NW
8
1.6
NW
8
1.9
NW
8
1.4
NW
8
1.3
NW
8
1.2
NW
7
0.4
SW
16
Wave Graph
Metric surfscale
Energy kJ
368
312
424
553
496
477
459
372
412
301
293
401
299
398
341
447
257
191
152
87
Wind (km/h)
5
W
5
NE
10
WNW
5
WNW
10
NNE
20
NW
20
NW
10
NNE
15
WNW
25
WNW
10
NNE
20
NNW
25
NW
15
NNE
20
NW
30
NW
20
NNE
15
WNW
10
WNW
5
N
Wind State
on
glassy
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
High Tide
10:38PM2.00m
11:44AM1.75m
11:32PM1.95m
12:16PM1.83m
00:23AM1.85m
12:48PM1.87m
1:13AM1.73m
1:19PM1.88m
2:03AM1.60m
1:51PM1.86m
2:55AM1.46m
2:22PM1.81m
3:52AM1.33m
Low Tide
4:40PM0.58m
5:22AM-0.09m
5:31PM0.41m
6:00AM0.02m
6:18PM0.27m
6:35AM0.17m
7:03PM0.17m
7:09AM0.35m
7:47PM0.13m
7:41AM0.53m
8:33PM0.13m
8:13AM0.70m
9:22PM0.17m
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:52
6:54
6:54
6:54
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:35
7:32
7:31
7:30
7:28
7:27
7:24
 mm
Temp °C
24
24
21
19
16
19
20
18
15
16
15
17
19
17
18
20
16
16
16
14
Feels °C
22
23
20
18
16
16
16
15
12
11
12
14
15
13
15
15
13
14
14
14
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  • 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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