Third Reef surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 4 am Thursday 30 Apr 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Third Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Third Reef sea temperature is
12.4° C
(Which is slightly warmer than usual)

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 (Apr 30) at 11PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.3m and 14s. Another secondary swell of 1.3m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Third Reef in the next 16 days are 1.6m 14s and forecast to arrive on Monday (May 04) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 12s period and expected on Friday (May 01) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 30th Apr)3ft (0.9m) 13s
Best Surf11PM (Sat 2nd May)6.5ft (2.0m) 9s
Most Powerful 2AM (Mon 4th May)5ft (1.6m) 14s

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 Thu morning, min 9°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Very mild (max 13°C on Tue afternoon, min 10°C on Tue night). Wind will be generally light.

Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
0
0
1
0
0
3
2
2
4
3
3
3
2
1
2
1
1
2
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1
WNW
13
1
WNW
13
0.9
WNW
12
0.9
WNW
13
1.1
WNW
12
1.2
WNW
12
1.1
WNW
12
1.8
NW
9
1.4
NW
9
0.9
WNW
16
1.1
WNW
16
1.6
WNW
14
1.4
WNW
14
1.5
WNW
13
1.3
WNW
12
1.1
WNW
12
1.1
WNW
12
0.7
SW
15
0.8
SSW
16
0.8
SSW
16
0.9
WNW
12
Wave Graph
Metric surfscale
Energy kJ
362
357
245
261
377
412
347
497
323
412
561
1057
733
734
551
322
311
223
314
306
208
Wind (km/h)
15
NW
15
NW
15
NNE
15
NW
25
NW
15
N
15
NW
20
NW
5
NNE
5
WSW
5
WSW
10
SSE
10
S
5
SSW
5
NE
10
W
10
WNW
0
ESE
10
W
10
WNW
5
NNW
cross-on
cross-on
cross-off
cross-on
cross-on
cross
cross-on
cross-on
glassy
on
on
cross-off
cross-off
glassy
glassy
on
cross-on
glassy
on
on
glassy
High Tide
11:52AM1.40m
11:10PM1.83m
12:38PM1.38m
11:38PM1.82m
1:23PM1.36m
00:07AM1.80m
2:08PM1.32m
00:37AM1.76m
2:54PM1.28m
1:09AM1.71m
3:43PM1.23m
1:44AM1.65m
4:36PM1.20m
2:24AM1.57m
Low Tide
5:10PM0.54m
6:07AM-0.20m
5:43PM0.64m
6:42AM-0.24m
6:15PM0.73m
7:18AM-0.25m
6:46PM0.81m
7:55AM-0.22m
7:17PM0.89m
8:36AM-0.16m
7:52PM0.94m
9:20AM-0.10m
8:35PM0.99m
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
light rain
light rain
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:15
6:13
6:13
6:11
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:08
8:09
8:10
8:12
8:13
8:14
8:15
2
1
Temp °C
15
15
15
14
15
13
13
13
12
12
12
12
11
12
12
12
13
11
12
12
11
12
12
13
11
11
9
10
9
11
11
11
11
10
11
12
11
11
10
10
10
9
Swell 1
Height (m)
Direction
Period (s)
1.2
NW
8
1
WNW
13
0.9
WNW
12
0.9
WNW
13
1.1
WNW
12
1.2
WNW
12
1.1
WNW
12
0.7
NW
11
1.4
NW
9
1.4
WNW
9
1.2
NW
9
1.6
WNW
14
1.4
WNW
14
1.5
WNW
13
1.3
WNW
12
1.1
WNW
12
1.1
WNW
12
0.9
WNW
11
0.8
WNW
11
0.8
SSW
16
0.9
WNW
12
Energy kJ
169
357
245
261
377
412
347
133
323
307
231
1057
733
734
551
322
311
214
161
306
193
Swell 2
Height (m)
Direction
Period (s)
1
WNW
13
0.3
SW
14
0.3
SW
14
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.2
SSW
18
0.6
WNW
11
0.9
WNW
16
1.1
WNW
16
0.4
SW
15
0.5
SSW
15
0.7
SSW
15
0.5
SW
16
0.6
SSW
17
0.7
SW
14
0.7
SW
15
0.8
SSW
16
0.5
WNW
13
0.7
SW
14
Energy kJ
362
33
29
28
27
27
27
31
82
412
561
56
121
209
127
195
211
223
314
101
208
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
14
0.2
S
11
0.2
S
13
0.2
S
11
0.2
S
10
0.2
S
12
0.2
SSW
18
0.2
WSW
12
0.5
WNW
18
0.4
SSW
16
0.5
WNW
12
0.3
SW
18
0.4
SW
18
0.2
S
10
0.4
SSW
13
0.5
SSW
14
0.3
NNW
8
0.3
NNW
8
0.3
WNW
14
0.2
NNW
8
0.5
WNW
7
Energy kJ
74
9
14
9
8
11
31
15
182
102
75
50
80
8
70
105
13
13
37
6
26
Wind waves
Height (m)
Direction
Period (s)
1.6
NW
8
1.6
NW
7
1.3
NW
8
1.4
NW
8
1.6
NW
7
1.1
NW
7
1.1
NW
7
1.8
NW
9
0.9
WNW
11
Energy kJ
300
253
188
253
277
121
137
497
173
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
3
2
3
3
2
2
3
3
3
4
3
3
3
2
2
2
1
2
Distance (km)
0
193
386
29
195
386
3
169
702
0
196
126
0
29
126
0
195
195
0
195
195
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
3
3
3
3
4
4
3
3
2
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
3
3
3
4
3
3
4
4
3
4
4
3
3
3
3
2
2
2
Header Global
Rating
(10 max)
5
5
6
7
6
9
5
4
4
4
4
4
5
4
4
4
4
9
9
9
9
  • 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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