Saint Annes surfForecast / CAL – San Luis Obispo / USA

information circle16 Day Weather and Surf, issued 10 am Monday 18 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Saint Annes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Saint Annes sea temperature is
12.9° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for Saint Annes this week:

The surf forecast for Saint Annes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 18) at 8PM. The primary swell is predicted to be 1.6m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Saint Annes in the next 16 days are 1.5m 14s and forecast to arrive on Wednesday (May 20) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 14s period and expected on Wednesday (May 20) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 18th May)5ft (1.6m) 11s
Best Surf 8PM (Mon 18th May)5ft (1.6m) 11s
Most Powerful 2AM (Wed 20th May)5ft (1.5m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue morning, min 11°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Thu morning, min 11°C on Thu night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
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
1
2
1
1
2
1
0
1
1
0
2
1
1
1
0
0
1
0
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)
2
WNW
11
1.7
WNW
11
1.6
WNW
10
1.5
WNW
10
1.4
WNW
10
1.5
WNW
14
1.5
WNW
13
1.5
WNW
13
1.3
WNW
12
1.5
WNW
12
1.3
WNW
11
1.1
WNW
11
1
WNW
11
1
WNW
10
0.9
WNW
10
0.7
SW
16
0.7
SW
16
0.7
SW
16
0.7
SW
15
0.7
SW
15
0.7
SW
14
Wave Graph
Metric surfscale
Energy kJ
978
637
530
427
371
908
722
711
491
575
419
286
238
216
191
255
258
258
242
220
214
Wind (km/h)
10
SSW
15
WNW
5
NNE
10
WSW
10
WNW
5
N
10
W
15
WNW
5
NW
10
W
10
WNW
5
NNW
10
WSW
10
W
5
ENE
10
SW
10
W
5
N
10
W
15
WNW
5
NNW
on
cross
off
on
cross-on
glassy
cross-on
cross-on
cross
cross-on
cross-on
cross-off
cross-on
cross-on
glassy
on
cross-on
glassy
cross-on
cross
cross-off
High Tide
12:36PM0.35m
11:12PM1.12m
1:32PM0.34m
11:55PM1.03m
2:34PM0.34m
00:43AM0.89m
3:39PM0.37m
1:37AM0.71m
4:44PM0.41m
2:46AM0.52m
5:42PM0.48m
4:17AM0.36m
6:29PM0.56m
Low Tide
5:01PM-0.13m
6:42AM-1.27m
5:48PM-0.06m
7:31AM-1.21m
6:44PM0.02m
8:24AM-1.11m
7:56PM0.07m
9:21AM-0.98m
9:34PM0.07m
10:21AM-0.84m
11:18PM-0.04m
11:22AM-0.71m
00:40AM-0.22m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:54
5:54
5:54
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:01
8:01
8:02
8:04
8:05
8:05
8:06
Temp °C
18
18
16
20
19
15
18
17
12
16
16
12
16
16
12
15
15
13
16
16
11
15
14
13
17
17
14
16
14
11
14
13
11
14
14
11
13
13
12
14
14
9
Swell 1
Height (m)
Direction
Period (s)
2
WNW
11
1.7
WNW
11
1.6
WNW
10
1.5
WNW
10
1.4
WNW
10
1.5
WNW
14
1.5
WNW
13
1.5
WNW
13
1.3
WNW
12
1.5
WNW
12
1.3
WNW
11
1.1
WNW
11
1
WNW
11
1
WNW
10
0.9
WNW
10
0.8
WNW
10
0.8
WNW
10
0.8
WNW
10
0.7
SW
15
0.7
SW
15
0.7
WNW
9
Energy kJ
978
637
530
427
371
908
722
711
491
575
419
286
238
216
175
125
133
125
242
220
76
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
13
0.3
SSW
12
0.4
S
15
0.7
NW
16
0.8
WNW
15
0.5
S
14
0.4
S
13
0.5
SW
15
0.5
SW
19
0.5
SW
15
0.5
SW
15
0.5
SW
17
0.6
SSW
18
0.5
SW
14
0.6
SW
15
0.7
SW
16
0.7
SW
16
0.7
SW
16
0.7
NW
10
0.4
SSW
19
0.7
SW
14
Energy kJ
55
29
69
261
272
89
56
113
184
109
110
148
207
103
191
255
258
258
100
136
214
Swell 3
Height (m)
Direction
Period (s)
0.3
S
16
0.3
S
16
0.4
NW
18
0.4
S
15
0.4
S
14
0.4
SW
16
0.4
SW
16
0.4
S
13
0.4
SW
15
0.4
S
12
0.4
S
12
0.4
SW
14
0.5
SW
14
0.4
SSW
18
0.4
S
12
0.4
S
12
0.4
S
12
0.3
S
11
0.3
S
11
0.3
S
11
0.5
SSW
18
Energy kJ
46
45
80
68
64
66
89
55
78
48
48
73
102
121
45
44
43
22
20
20
174
Wind waves
Height (m)
Direction
Period (s)
0.8
WNW
10
Energy kJ
109
Nearest Offshore or Glassy
Rating
(10 max)
3
3
2
3
1
2
3
2
3
2
1
2
2
2
1
2
2
1
1
1
2
Distance (km)
20
148
0
26
117
0
85
117
2
87
117
0
195
105
0
195
85
0
117
230
0
Best forecast wave conditions in San Luis Obispo
Rating
(10 max)
4
3
3
4
3
3
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
4
4
3
3
4
3
4
3
2
2
4
3
3
2
3
2
2
1
1
2
Header Global
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
7
5
5
7
9
5
4
4
5
6
  • 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 Saint Annes Surf forecast

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

Saint Annes is 4 km (2 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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