Big Lagoon Surf Break

Lat Long: 41.16° N 124.14° W

Big Lagoon Surf Forecast and Surf Report

Issued: 10 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Lagoon sea temperature is
14.9°C
1.0° 

Big Lagoon surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Big Lagoon surf forecast from 13 Sep 2026:

  • Best quality surf: Monday 14 Sep, 2AM (local time) - 5ft (1.5m), 9s period, NW swell with glassy winds.
  • Most powerful swell: Tuesday 15 Sep, 8PM (local time) - 8ft (2.5m), 8s period, NW swell with 804 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 2AM (local time) - 5ft (1.5m), 9s period with NW swell.

Best Forecast Surf Conditions for Big Lagoon this week:

The surf forecast for Big Lagoon over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 2AM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.5m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big Lagoon in the next 16 days are 2.5m 8s and forecast to arrive on Tuesday (Sep 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 14th Sep)5ft (1.5m) 9s
Best Surf 2AM (Mon 14th Sep)5ft (1.5m) 9s
Most Powerful 8PM (Tue 15th Sep)8ft (2.5m) 8s

Table - best surf conditions forecast for Big Lagoon over the next 16 days.


Short Range Forecast

Mostly dry. Very mild (max 17°C on Sun morning, min 12°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Fri morning, min 12°C on Fri night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
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
0
3
0
0
3
2
0
3
1
2
2
2
2
2
0
0
2
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
WNW
9
1.5
WNW
9
1.5
NW
9
1.4
NW
8
2.1
NW
7
1.9
NW
8
1.7
NW
8
2.4
NW
8
2.1
NW
8
1.7
NW
8
1.6
NW
8
1.8
NW
8
1.5
NW
8
1.4
NW
8
1.3
NW
8
1.1
NW
9
0.5
SW
19
0.5
SW
19
0.5
SW
18
0.6
SW
18
0.7
SW
18
Wave Graph
Metric surfscale
Energy kJ
346
339
334
260
428
413
326
735
502
344
281
393
284
264
224
189
184
184
159
252
316
Wind (km/h)
5
WSW
20
NNW
5
ENE
15
NNW
20
NNW
5
SE
10
NW
25
NNW
5
NNE
10
WNW
0
WNW
10
SSE
10
SSW
10
SSW
5
ESE
10
NW
15
NNW
0
NE
5
WNW
10
NNW
10
S
Wind State
cross-on
cross-on
glassy
on
cross-on
off
on
cross-on
glassy
cross-on
glassy
cross-off
cross-off
cross-off
off
on
on
glassy
cross-on
on
cross-off
High Tide
1:35PM2.65m
2:18AM2.27m
2:06PM2.61m
3:10AM2.11m
2:40PM2.54m
4:07AM1.97m
3:16PM2.45m
5:16AM1.85m
3:59PM2.35m
6:44AM1.80m
4:53PM2.26m
8:15AM1.83m
6:02PM2.21m
Low Tide
8:05PM0.54m
7:57AM1.01m
8:51PM0.55m
8:30AM1.20m
9:39PM0.61m
9:05AM1.37m
10:32PM0.69m
9:45AM1.51m
11:35PM0.76m
10:38AM1.63m
00:46AM0.79m
12:00PM1.69m
1:54AM0.76m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:56
6:56
6:58
6:58
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:29
7:27
7:25
7:23
7:22
7:21
7:19
 mm
Temp °C
17
17
14
17
16
13
17
17
14
16
16
14
17
17
14
18
17
13
16
16
12
Feels °C
16
15
11
14
12
11
15
13
12
15
15
14
16
16
14
17
15
13
16
15
11
  • 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
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Information about the Big Lagoon Surf forecast

The above surf forecast table for Big Lagoon provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big Lagoon can be found by selecting the local surf guide option on the grey menu. Our Big Lagoon 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 (Big Lagoon) 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 Big Lagoon 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.

Big Lagoon is 24 km (15 miles) from McKinleyville. If you plan a vacation in Humboldt County, look for hotels and other accommodation in McKinleyville. McKinleyville has rooms for a wide range of budgets as well as car hire and transport links.

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