Gray Whale Cove surfForecast / CAL – San Mateo / USA

information circle48hr Weather and Surf, issued 4 pm Tuesday 12 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Gray Whale Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gray Whale Cove sea temperature is
14.0° C
(Which is 1.9°C warmer than normal for this time of year)

How big are the waves at Gray Whale Cove today?

The current surf forecast for Gray Whale Cove at 8PM is: 0.9m 11s primary swell from a West-northwest direction and 0.6m 15s secondary swell from a South-southwest direction, 0.8m 6s secondary swell from a West-northwest direction (forecast issued at 04:00pm May 12). The wind direction is predicted to be onshore.

Time (PDT) & DateWave HeightWave Period
Morning (12 May)--
Afternoon (12 May)3.5ft (1.1m)11s
Evening (12 May)2ft (0.6m)15s

Table - waves today at Gray Whale Cove. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 13°C on Thu morning, min 10°C on Wed night). Wind will be generally light.

Tue
12
Wednesday
13
Thursday
14
Fri
15
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
2
3
3
2
1
0
1
1
0
1
1
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.1
WNW
11
0.9
WNW
11
0.9
WNW
11
0.6
SSW
15
1.2
NW
7
0.8
W
12
0.9
W
12
1
W
11
1
W
11
1.1
W
11
1.1
W
12
1.9
WNW
8
2.1
WNW
8
1.7
WNW
8
1.6
WNW
8
1.5
WNW
8
1.7
WNW
8
1.8
WNW
9
2.4
WNW
9
3
WNW
9
2.4
WNW
9
2.4
WNW
10
3
WNW
10
2.2
WNW
9
Wave Graph
Metric surfscale
Energy kJ
303
194
194
149
127
184
224
248
244
305
333
400
506
344
338
313
432
499
907
1249
1006
1021
1453
753
Wind (km/h)
15
W
20
WNW
20
WNW
15
WNW
15
WNW
20
NW
20
WNW
25
WNW
25
WNW
30
WNW
25
NW
25
NW
15
NW
5
NW
5
WNW
10
WNW
15
WNW
25
NW
20
WNW
20
NW
20
NW
20
NW
20
NW
25
NW
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
8:16PM2.32m
8:51AM1.90m
8:47PM2.46m
9:53AM1.95m
9:22PM2.60m
10:52AM2.00m
Low Tide
1:43PM0.83m
2:53AM0.74m
2:25PM0.93m
3:37AM0.45m
3:08PM1.04m
4:23AM0.20m
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:08
8:09
8:10
8:12
Temp °C
11
12
12
12
12
12
12
12
12
12
11
10
10
10
11
13
13
12
11
11
11
10
11
13
8
9
8
9
10
9
8
7
7
6
6
6
7
9
10
11
10
7
7
7
7
6
7
8
Swell 1
Height (m)
Direction
Period (s)
1.1
WNW
11
0.9
WNW
11
0.9
WNW
11
0.8
W
11
1.2
WNW
6
1
WNW
6
0.9
W
12
1
W
11
1
W
11
1.1
W
11
1.1
W
12
0.9
W
12
1.7
WNW
8
1.7
WNW
8
1.6
WNW
8
1.5
WNW
8
1.5
WNW
9
1.8
WNW
9
2.2
WNW
9
2.5
WNW
9
2.4
WNW
9
2.4
WNW
10
2.4
WNW
9
0.6
SSW
15
Energy kJ
303
194
194
146
121
68
224
248
244
305
333
224
339
344
338
313
328
499
761
990
1006
1021
958
152
Swell 2
Height (m)
Direction
Period (s)
0.6
SSW
15
0.6
SSW
15
0.6
SSW
15
0.6
SSW
15
0.7
W
10
0.8
W
12
0.5
SW
14
0.5
SW
14
0.5
SW
14
0.5
SW
13
0.5
SW
13
0.5
SW
13
1
W
12
0.9
W
11
0.9
W
11
0.9
W
11
0.8
W
11
0.6
SSW
16
0.6
SSW
16
0.6
SSW
16
0.6
SSW
16
0.6
SSW
16
0.6
SSW
15
0.2
W
18
Energy kJ
142
142
142
142
108
184
97
92
89
88
88
88
271
209
188
184
143
173
173
169
166
162
156
25
Swell 3
Height (m)
Direction
Period (s)
0.1
S
11
0.1
S
11
0.1
S
14
0.2
S
11
0.5
SW
14
0.5
SW
14
0.1
SW
20
0.2
SSW
19
0.2
SSW
18
0.4
SW
18
0.4
SW
18
0.4
SW
18
0.4
SSW
13
0.4
SW
13
0.4
SW
13
0.6
SSW
16
0.6
SSW
16
0.1
W
20
0.1
W
20
0.1
W
19
0.2
W
18
0.2
W
18
Energy kJ
2
2
4
9
103
102
15
37
32
80
80
80
70
45
45
179
173
8
7
7
25
25
Wind waves
Height (m)
Direction
Period (s)
0.6
WNW
6
0.8
WNW
6
1.3
WNW
6
1.2
NW
7
1
WNW
6
1.2
WNW
6
1.3
WNW
6
1.4
WNW
7
1.8
WNW
7
1.9
WNW
8
2.1
WNW
8
1.7
WNW
8
2.4
WNW
9
3
WNW
9
3
WNW
10
2.2
WNW
9
Energy kJ
28
38
149
127
62
96
136
175
325
400
506
432
907
1249
1453
753
Nearest Offshore or Glassy
Rating
(10 max)
2
1
3
3
2
2
3
2
2
1
2
3
3
3
3
2
2
2
3
3
3
4
3
3
Distance (km)
81
81
80
47
47
55
72
81
81
83
81
79
18
0
0
27
27
81
27
27
27
24
27
81
Best forecast wave conditions in San Mateo
Rating
(10 max)
3
2
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
3
3
2
3
2
3
2
2
4
4
4
4
4
3
3
4
4
4
4
4
4
Header Global
Rating
(10 max)
9
9
9
9
9
8
7
9
9
9
9
5
5
5
5
5
4
5
5
5
5
5
5
5
  • 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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