Third Reef Surf Break

Lat Long: 40.03° N 124.08° W

Third Reef Surf Forecast and Surf Report

Issued: 4 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Third Reef sea temperature is
12.8° C
0.3° 

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 18 Jul 2026:

  • Best quality surf: Friday 24 Jul, 11PM (local time) - 2.5ft (0.7m), 24s period, SW swell with cross-offshore 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★+): Saturday 18 Jul, 5PM (local time) - 2.5ft (0.8m), 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 Saturday (Jul 18) at 5PM. The primary swell is predicted to be 0.8m and 18s period with a secondary swell of 1.1m and 7s. 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 cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 10s period and expected on Wednesday (Jul 22) at 5PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sat 18th Jul)2.5ft (0.8m) 18s
Best Surf11PM (Fri 24th Jul)2.5ft (0.7m) 24s
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 14°C on Sat morning, min 13°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Wed morning, min 13°C on Thu night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
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
3
3
3
3
3
3
3
2
1
1
2
1
2
2
0
1
3
0
2
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
WNW
16
0.8
SW
18
0.8
WNW
16
1.3
NW
8
0.9
SW
17
0.9
SW
17
0.7
SW
16
0.9
SW
16
0.9
SW
16
0.8
SSW
16
0.6
SW
14
0.9
SSW
14
0.7
SSW
15
0.4
SSW
16
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.6
SSW
26
0.6
SSW
24
0.9
SW
24
0.7
SW
23
Wave Graph
Metric surfscale
Energy kJ
362
375
273
222
439
419
261
362
367
310
164
321
193
83
220
236
233
447
374
801
558
Wind (km/h)
10
WNW
5
NW
5
N
5
WSW
5
NW
5
WNW
5
SSW
0
WNW
5
NNE
5
W
5
NW
5
ENE
5
WNW
5
W
5
NNE
10
NW
5
WNW
10
NNE
20
NW
15
NW
10
N
Wind State
cross-on
glassy
glassy
glassy
glassy
glassy
glassy
glassy
cross-off
on
cross-on
glassy
cross-on
glassy
glassy
cross-on
cross-on
cross-off
cross-on
cross-on
cross
High Tide
3:42PM1.73m
3:18AM1.57m
4:22PM1.76m
4:22AM1.36m
5:02PM1.77m
5:40AM1.19m
5:44PM1.78m
7:13AM1.10m
6:30PM1.78m
8:45AM1.11m
7:18PM1.80m
9:56AM1.17m
8:07PM1.82m
Low Tide
9:02AM-0.06m
9:37PM0.58m
9:42AM0.17m
10:44PM0.51m
10:22AM0.40m
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
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:03
6:03
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:42
8:40
8:40
8:39
8:38
8:37
8:37
 mm
Temp °C
14
14
14
14
14
13
14
14
14
15
16
16
18
16
16
17
16
14
16
16
17
Feels °C
14
13
14
13
14
13
13
14
13
15
15
16
18
15
16
16
14
15
13
13
15
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Third Reef:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Third Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest