Sand spit surfForecast / CAL – San Luis Obispo / USA

information circle16 Day Weather and Surf, issued 4 am Sunday 10 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Sand spit surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sand spit sea temperature is
13.3° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Sand spit this week:

The surf forecast for Sand spit over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 10) at 11PM. The primary swell is predicted to be 0.9m and 17s period with a secondary swell of 1.3m and 7s. Another secondary swell of 1.0m and 10s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Sand spit in the next 16 days are 3.0m 9s and forecast to arrive on Saturday (May 16) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Wednesday (May 13) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 10th May)3ft (0.9m) 17s
Best Surf11PM (Sun 10th May)3ft (0.9m) 17s
Most Powerful11PM (Sat 16th May)10ft (3.0m) 9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Fri morning, min 12°C on Wed night). Winds increasing (light winds from the SSE on Wed morning, fresh winds from the NW by Thu afternoon).

Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
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
1
3
3
2
3
2
2
2
1
2
1
0
0
2
1
0
1
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)
1.8
WNW
8
0.8
SSW
18
0.8
SSW
16
0.9
SSW
16
0.9
SSW
16
1.2
WNW
11
0.9
SSW
15
0.9
SSW
15
1
WNW
11
0.8
SSW
14
1.2
WNW
12
1.3
WNW
12
0.9
SSW
16
1.5
WNW
11
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
2.5
WNW
8
0.9
SSW
14
2.5
WNW
8
3
NW
9
Wave Graph
Metric surfscale
Energy kJ
402
352
330
402
402
340
334
334
226
254
380
444
457
540
326
387
376
861
306
762
1263
Wind (km/h)
15
WNW
15
WNW
10
SE
10
S
5
SSW
0
NNW
10
WSW
10
SW
10
SE
10
SSW
10
WSW
15
NW
25
NW
35
NW
10
N
15
NW
30
NW
15
NNW
25
NW
35
NW
15
NNW
on
on
cross-off
cross-off
cross
glassy
cross-on
cross
cross-off
cross
cross-on
cross-on
on
on
cross
cross-on
on
cross-on
on
on
cross-on
High Tide
6:59PM1.69m
5:49AM1.55m
7:18PM1.81m
7:02AM1.54m
7:40PM1.95m
8:08AM1.55m
8:08PM2.10m
9:10AM1.57m
8:40PM2.25m
10:11AM1.58m
9:17PM2.36m
11:10AM1.58m
9:59PM2.43m
Low Tide
11:48AM0.57m
00:42AM1.14m
12:26PM0.62m
1:32AM0.92m
1:03PM0.69m
2:16AM0.66m
1:40PM0.78m
3:01AM0.41m
2:18PM0.87m
3:47AM0.18m
2:59PM0.97m
4:35AM0.01m
3:41PM1.05m
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:01
6:01
6:01
6:00
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:55
7:57
7:58
7:59
7:59
8:00
8:00
Temp °C
16
16
12
17
18
16
17
17
14
15
16
14
16
15
15
21
21
16
20
18
16
13
13
11
16
17
15
16
16
14
14
15
13
11
8
12
17
16
12
15
12
12
Swell 1
Height (m)
Direction
Period (s)
1.5
WNW
8
0.9
WNW
11
1.2
WNW
7
1.2
WNW
10
1.3
WNW
11
1.2
WNW
11
1.2
WNW
11
1.1
WNW
11
1
WNW
11
0.9
WNW
12
1.2
WNW
12
1.3
WNW
12
1.2
WNW
12
0.9
SSW
16
1.1
WNW
6
1.1
WNW
7
0.9
SSW
15
1.9
WNW
8
0.9
SSW
14
0.7
SSW
14
2.1
WNW
9
Energy kJ
277
183
157
248
387
340
325
275
226
254
380
444
368
452
98
125
376
492
301
218
616
Swell 2
Height (m)
Direction
Period (s)
0.8
WNW
12
0.8
SSW
18
0.9
WNW
10
0.9
SSW
16
0.9
SSW
16
0.8
SSW
15
0.9
SSW
15
0.9
SSW
15
0.7
SSW
14
0.8
SSW
14
0.7
SSW
13
0.6
SSW
17
0.9
SSW
16
0.2
S
10
0.9
SSW
15
0.9
SSW
15
0.2
WNW
18
0.7
SSW
15
0.7
NW
15
0.1
S
10
0.8
WNW
14
Energy kJ
175
352
169
402
402
252
334
334
180
207
158
235
457
8
326
387
31
246
220
2
232
Swell 3
Height (m)
Direction
Period (s)
0.7
SSW
18
0.6
SSW
15
0.8
SSW
16
0.4
WNW
12
0.1
S
12
0.2
S
13
0.2
S
11
0.2
S
13
0.2
S
12
0.2
SSW
18
0.4
SSW
18
0.6
SSW
13
0.2
S
10
0.9
WNW
10
0.7
WNW
10
0.1
S
9
0.6
WNW
16
0.1
S
10
0.1
SW
19
0.7
SSW
14
Energy kJ
280
142
330
53
3
13
10
13
11
31
106
118
8
158
102
2
173
2
15
213
Wind waves
Height (m)
Direction
Period (s)
1.8
WNW
8
1.5
WNW
8
0.4
SW
3
0.4
WNW
4
1.5
WNW
11
1.5
WNW
6
1.4
WNW
7
2.1
WNW
6
2.5
WNW
8
1.5
WNW
8
2.5
WNW
8
3
NW
9
Energy kJ
402
263
2
5
540
176
197
352
861
306
762
1263
Nearest Offshore or Glassy
Rating
(10 max)
4
3
2
3
3
2
3
2
2
2
2
1
3
2
2
3
3
2
3
2
3
Distance (km)
13
127
106
0
0
2
0
74
2
0
2
137
0
116
215
13
19
116
13
165
122
Best forecast wave conditions in San Luis Obispo
Rating
(10 max)
4
3
3
3
3
2
2
3
3
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
4
3
2
3
3
4
3
3
2
2
3
2
3
3
3
3
3
3
3
2
3
Header Global
Rating
(10 max)
4
5
6
5
4
9
9
9
9
9
6
9
5
5
5
5
5
5
4
6
5
  • 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 Sand spit Surf forecast

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

Sand spit is 18 km (11 miles) from Port San Luis. If you plan a vacation in San Luis Obispo, look for hotels and other accommodation in Port San Luis. Port San Luis has rooms for a wide range of budgets as well as car hire and transport links.

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