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Surf Forecasts

Moonstone surfForecast / CAL – San Luis Obispo / USA

information circle12 Day Weather and Surf, issued 4 pm Tuesday 29 Apr 2025 PDT
Forecast update in hr  min  s Forecast update imminent
Moonstone surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Moonstone sea temperature is
11.0° C
 (Which is 2.2°C colder than average for this time of year)

Best Forecast Surf Conditions for Moonstone this week:

The surf forecast for Moonstone over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Apr 29) at 8PM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.8m and 9s. Another secondary swell of 1.0m and 5s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Moonstone in the next 12 days are 4.5m 12s and forecast to arrive on Sunday (May 04) at 11PM. 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+) 8PM (Tue 29th Apr)3.5ft (1.1m) 16s
Best Surf 5AM (Sun 4th May)11ft (3.5m) 10s
Most Powerful11PM (Sun 4th May)15ft (4.5m) 12s

Table - best surf conditions forecast for Moonstone over the next 12 days.

Hourly12 Days
San Luis Obispo Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Tue
29
Wednesday
30
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sun
11
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
3
1
1
2
1
0
0
0
0
1
0
0
0
0
0
!
3
1
3
2
0
1
2
0
2
1
0
0
0
0
!
0
0
!
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
SSW
1.1
S
1
S
0.9
SSW
0.9
SSW
0.8
SSW
0.7
SSW
0.6
SSW
0.6
SSW
0.8
SSW
0.7
SSW
0.9
SSW
3
WNW
3.5
WNW
4
WNW
4
WNW
4
WNW
2.2
WNW
2
WNW
1.9
WNW
1.7
WNW
1.7
WNW
1.6
WNW
1.4
WNW
0.8
SSW
1.5
NW
1.4
NW
2.5
WNW
1.1
NW
2.1
WNW
2.5
WNW
3.5
NW
2.5
NW
2.1
WNW
3
NW
2.1
WNW
Period(s) (?)16161515141414131919181889111112111110101081318151471391010101099
Wave
Graph
(?)Metric surfscale
Energy (?)778612471360350273195137251480276486988197634913618396711218556655164853236593949537217163827181183202612748151351702
Wind
(km/h)
20
WNW
0
WNW
5
SSW
10
WSW
0
NNE
5
WSW
10
W
10
NW
10
WNW
30
WNW
10
NNW
25
NW
40
NW
30
NW
20
NW
30
WNW
10
NNW
5
SW
15
W
0
NNW
10
W
15
WNW
5
NW
10
W
15
WNW
5
NNW
15
WNW
20
WNW
10
NNW
25
NW
30
NW
15
NNW
25
NW
25
WNW
15
NW
10
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		glasscrossonglassononcross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		onglassononcross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
11:40PM
2.35
2:11PM
1.54
12:29AM
2.24
3:31PM
1.52
1:26AM
2.10
4:51PM
1.55
2:33AM
1.93
5:56PM
1.61
3:52AM
1.79
6:44PM
1.68
5:14AM
1.69
7:20PM
1.76
6:28AM
1.62
7:49PM
1.83
7:32AM
1.58
8:13PM
1.89
8:27AM
1.56
8:35PM
1.95
9:18AM
1.55
8:56PM
2.00
10:05AM
1.55
9:19PM
2.05
10:52AM
1.54
Low Tide
/ height (m)
5:25PM
1.12
7:13AM
-0.01
6:15PM
1.23
8:14AM
0.08
7:16PM
1.32
9:19AM
0.19
8:42PM
1.36
10:25AM
0.29
10:27PM
1.33
11:26AM
0.38
11:59PM
1.22
12:18PM
0.47
1:07AM
1.07
1:02PM
0.57
1:58AM
0.91
1:38PM
0.67
2:39AM
0.74
2:09PM
0.77
3:16AM
0.59
2:39PM
0.88
3:50AM
0.46
3:07PM
0.98
4:24AM
0.36
Tue
29
Wednesday
30
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sun
11
Sunrise--6:13--6:11--6:11--6:09--6:09--6:07--6:07--6:05--6:05--6:03--6:03--6:03
Sunset7:49--7:49--7:50--7:51--7:52--7:52--7:53--7:53--7:54--7:55--7:57--7:58--
clearpart cloudpart cloudpart cloudpart cloudclearclearclearclearclearpart cloudcloudclearclearpart cloudcloudclearclearclearpart cloudclearclearclearclearclearpart cloudcloudclearclearclearclearclearclearclearclearclear
Rain (mm)
------------------------------------
Temp. °C181314151215151216171414141112131013141114151216171418181618181517181519
Feels °C (?)15111314121413101414109737731112912121015151215151313131012131118

Short Range Forecast: Mostly dry. Very mild (max 18°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Fri afternoon, min 9°C on Sat night). Winds decreasing (strong winds from the NW on Sat afternoon, calm by Mon morning).

Days 6-9 Weather Summary Mostly dry. Very mild (max 18°C on Thu morning, min 10°C on Mon night). Wind will be generally light.

Long Range Forecast: Mostly dry. Very mild (max 19°C on Sun morning, min 12°C on Fri night). Winds decreasing (fresh winds from the NW on Fri afternoon, calm by Sun morning).

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
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View detailed surf forecast for Moonstone at:
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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 12 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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