Moonstone Surf Break

Lat Long: 35.57° N 121.11° W

Issued: 4 am 21 Jun 2026 (local time)

Forecast update in  hr  min

Today's Moonstone sea temperature is
13.5° C

1.0°C colder than average for this time of year

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


Moonstone surf forecast from 21 Jun 2026:

  • Best quality surf: Sunday 28 Jun, 5AM (local time) - 10ft (3.0m), 9s period, NW swell with cross-onshore winds.
  • Most powerful swell: Sunday 28 Jun, 5AM (local time) - 10ft (3.0m), 9s period, NW swell with 1,219 kJ wave energy.
  • Next surfable swell (1★+): Monday 22 Jun, 5AM (local time) - 3ft (0.9m), 14s period with SSW swell.

Best Forecast Surf Conditions for Moonstone this week:

The surf forecast for Moonstone over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jun 22) at 5AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 1.0m and 9s. Another secondary swell of 1.4m and 9s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Moonstone in the next 16 days are 3.0m 9s and forecast to arrive on Sunday (Jun 28) at 5AM. 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+) 5AM (Mon 22nd Jun)3ft (0.9m) 14s
Best Surf 5AM (Sun 28th Jun)10ft (3.0m) 9s
Most Powerful 5AM (Sun 28th Jun)10ft (3.0m) 9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 19°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Fri afternoon, min 14°C on Wed night). Wind will be generally light.

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
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
0
2
2
0
2
1
1
2
3
1
2
2
1
3
1
0
2
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)
1
SSW
14
1
SSW
14
0.9
SSW
14
0.8
SSW
13
0.7
SW
16
0.8
SSW
16
0.9
SSW
16
0.9
SSW
19
0.9
SSW
18
1.3
SSW
17
1.1
SSW
16
1.1
SSW
16
1.2
SSW
16
1.1
SSW
15
1
SSW
14
0.9
SSW
14
2.3
WNW
7
1
SSW
18
0.9
SSW
17
2.5
WNW
7
2
WNW
8
Wave Graph
Metric surfscale
Energy kJ
431
431
325
229
268
330
382
522
454
992
612
582
697
512
400
325
568
589
464
638
521
Wind (km/h)
15
WNW
20
WNW
10
NW
10
W
15
WNW
10
NW
10
W
10
W
5
NNW
10
W
10
W
5
NNW
10
W
15
WNW
0
NE
15
WNW
25
WNW
10
NW
25
WNW
30
WNW
15
NW
Wind State
on
on
cross-on
on
on
cross-on
on
on
cross-on
on
on
cross-on
on
on
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:08PM1.89m
5:04AM1.42m
5:49PM1.94m
6:36AM1.34m
6:27PM1.99m
8:00AM1.33m
7:03PM2.02m
9:08AM1.37m
7:38PM2.05m
10:01AM1.41m
8:14PM2.08m
10:44AM1.45m
8:51PM2.11m
Low Tide
10:09AM0.58m
11:41PM0.90m
10:53AM0.76m
00:51AM0.74m
11:38AM0.93m
1:47AM0.59m
12:23PM1.06m
2:33AM0.46m
1:08PM1.15m
3:13AM0.36m
1:52PM1.20m
3:50AM0.28m
2:34PM1.23m
4:27AM0.22m
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:48
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:22
8:22
8:22
8:22
8:22
 mm
Temp °C
18
19
15
18
19
15
18
19
15
20
20
16
19
20
15
20
21
19
19
20
16
Feels °C
16
17
13
17
17
14
17
18
14
19
19
16
18
19
14
18
19
17
16
16
11
Swell 1
Height (m)
Direction
Period (s)
1
SSW
14
1
SSW
14
0.9
SSW
14
0.9
WNW
9
0.7
SSW
13
0.8
WNW
8
0.9
SSW
16
0.8
SSW
15
0.9
SSW
18
1.3
SSW
17
1.1
SSW
16
1.1
SSW
16
1.2
SSW
16
1.1
SSW
15
1.3
WNW
7
0.9
SSW
14
0.8
SSW
14
1
SSW
18
0.9
SSW
17
0.9
SSW
16
0.9
SSW
16
Energy kJ
431
431
325
121
154
76
382
272
454
992
612
582
697
512
155
325
236
589
464
417
402
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
20
0.5
SW
19
0.9
WNW
6
0.8
SSW
13
0.7
SW
16
0.8
SSW
16
0.6
SSW
20
0.9
SSW
19
0.8
SSW
14
0.4
WNW
8
0.5
SSW
13
0.5
NW
9
0.4
WNW
8
0.7
NW
9
1
SSW
14
0.6
SSW
19
0.7
SSW
18
0.1
W
15
0.1
W
14
0.1
S
10
0.7
NW
11
Energy kJ
149
173
48
229
268
330
298
522
268
24
93
40
28
75
400
251
280
4
4
2
119
Swell 3
Height (m)
Direction
Period (s)
0.4
SSE
15
0.3
SSE
15
0.7
SW
18
0.5
SSW
18
0.3
SSE
13
0.7
SSW
13
0.7
WNW
8
0.6
WNW
8
0.6
WNW
8
0.2
SSE
12
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.5
SSW
19
0.2
WNW
10
0.1
S
10
0.1
S
10
0.1
S
10
0.1
S
10
Energy kJ
72
42
319
176
35
151
59
46
44
14
13
12
11
11
214
10
2
2
2
2
Wind waves
Height (m)
Direction
Period (s)
0.6
WNW
4
0.9
WNW
4
1.4
NW
9
1
WNW
9
1.1
NW
8
0.5
WNW
10
1.3
WNW
7
2.3
WNW
7
1.6
WNW
7
1.5
WNW
6
2.5
WNW
7
2
WNW
8
Energy kJ
16
29
281
147
154
54
178
568
216
181
638
521
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
1
1
2
3
3
3
1
2
3
2
2
3
2
2
4
1
2
4
Distance (km)
277
172
23
174
174
23
139
91
2
277
174
2
139
172
0
172
152
23
172
200
57
Best forecast wave conditions in San Luis Obispo
Rating
(10 max)
3
3
3
3
3
4
4
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
1
2
3
3
3
3
2
2
3
2
2
3
2
2
4
2
2
5
Header Global
Rating
(10 max)
5
7
5
6
5
5
5
7
8
8
6
5
6
5
5
5
5
5
5
8
9
  • 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 Moonstone Surf forecast

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

Moonstone is 39 km (24 miles) from Paso Robles. If you plan a vacation in San Luis Obispo, look for hotels and other accommodation in Paso Robles. Paso Robles has rooms for a wide range of budgets as well as car hire and transport links.

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