Francis Beach surfForecast / CAL – San Mateo / USA

information circle48hr Weather and Surf, issued 4 pm Saturday 16 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Francis Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Francis Beach sea temperature is
14.3° C
(Which is 2.1°C warmer than normal for this time of year)

How big are the waves at Francis Beach today?

The current surf forecast for Francis Beach at 12AM is: 3.5m 11s primary swell from a West-northwest direction and 0.4m 14s secondary swell from a South-southwest direction, 0.1m 20s secondary swell from a South direction (forecast issued at 04:00pm May 16). The wind direction is predicted to be cross-onshore.

Time (PDT) & DateWave HeightWave Period
Morning (17 May)10ft (3.0m)11s
Afternoon (17 May)10ft (3.0m)11s
Evening (17 May)10ft (3.0m)11s

Table - waves today at Francis Beach. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue morning, min 9°C on Sat night). Winds decreasing (strong winds from the NW on Sat afternoon, calm by Mon night).

Sat
16
Sunday
17
Monday
18
Tue
19
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
2
1
1
0
0
0
0
1
2
3
3
2
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3
WNW
9
3.5
WNW
10
3.5
WNW
10
3.5
WNW
10
3.5
WNW
11
4
WNW
11
3
WNW
11
3
WNW
11
3
WNW
11
3
WNW
11
3
WNW
11
3.5
WNW
11
2.5
WNW
11
2.1
WNW
10
1.9
WNW
10
1.7
WNW
10
2
WNW
10
1.9
WNW
10
1.7
WNW
10
2
WNW
10
1.9
WNW
10
1.8
WNW
10
1.7
WNW
10
1.6
WNW
10
Wave Graph
Metric surfscale
Energy kJ
1574
2000
2598
2864
3028
3844
2227
1916
1957
2233
1922
2982
1421
955
720
559
809
770
586
716
717
650
561
512
Wind (km/h)
40
NW
40
NW
40
NW
40
NW
30
NW
20
NW
15
NW
20
NW
30
NW
30
NW
30
NW
25
NNW
20
NNW
30
N
20
N
20
NNW
25
NW
25
NW
15
NW
10
NW
5
WNW
0
W
5
NNE
10
NW
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
glassy
glassy
cross-on
High Tide
11:50AM1.31m
10:31PM1.95m
12:48PM1.33m
11:16PM1.96m
1:45PM1.33m
00:06AM1.92m
Low Tide
4:33PM0.71m
5:43AM-0.58m
5:21PM0.79m
6:32AM-0.61m
6:14PM0.85m
7:25AM-0.57m
clear
clear
clear
clear
clear
clear
clear
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>
5:58
5:58
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:12
8:13
8:14
8:15
Temp °C
12
12
11
10
9
9
11
13
14
14
13
15
17
18
18
19
17
15
11
11
11
11
15
20
4
4
3
2
2
4
7
8
7
8
7
9
11
10
12
13
11
10
8
9
10
11
14
17
Swell 1
Height (m)
Direction
Period (s)
0.5
SW
14
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
3.5
WNW
11
3
WNW
11
3
WNW
11
0.4
SW
14
0.4
SW
13
3
WNW
11
3
WNW
11
2.5
WNW
11
2.1
WNW
10
1.9
WNW
10
1.7
WNW
10
1.5
WNW
10
1.5
WNW
10
1.7
WNW
10
2
WNW
10
1.9
WNW
10
1.8
WNW
10
1.7
WNW
10
1.6
WNW
10
Energy kJ
103
82
82
82
81
2517
2227
1916
46
46
1922
1967
1421
955
720
559
502
483
586
716
717
650
561
512
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
19
0.1
SW
20
0.1
SW
20
0.1
S
20
0.4
SSW
14
0.4
SW
14
0.4
SW
14
0.1
SW
18
0.2
SSW
18
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.2
SSW
13
0.3
SW
17
0.3
SW
16
0.3
SW
16
0.3
SW
16
0.3
W
18
0.4
WNW
17
0.5
W
16
0.6
W
16
0.7
W
16
0.7
W
15
Energy kJ
15
15
15
7
81
51
48
12
31
46
45
45
17
44
42
41
42
55
96
132
188
239
212
Swell 3
Height (m)
Direction
Period (s)
0.1
S
20
0.1
S
20
0.1
SW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
0.2
W
18
0.3
SW
17
0.3
SW
17
0.3
SW
16
0.2
SSW
15
0.4
SW
15
0.2
SSW
15
Energy kJ
7
7
12
31
31
31
30
17
17
17
25
46
47
42
22
59
22
Wind waves
Height (m)
Direction
Period (s)
3
WNW
9
3.5
WNW
10
3.5
WNW
10
3.5
WNW
10
3.5
WNW
11
4
WNW
11
3
WNW
11
3
WNW
11
3.5
WNW
11
2
WNW
10
1.9
WNW
10
Energy kJ
1574
2000
2598
2864
3028
3844
1957
2233
2982
809
770
Nearest Offshore or Glassy
Rating
(10 max)
4
1
4
4
4
4
5
4
4
4
5
4
4
4
3
3
2
2
2
4
4
3
3
3
Distance (km)
66
68
66
66
65
65
40
40
66
66
66
66
66
57
50
57
66
66
65
32
14
0
0
7
Best forecast wave conditions in San Mateo
Rating
(10 max)
4
4
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
4
2
4
4
6
9
9
7
4
4
5
7
5
4
5
4
4
4
4
4
4
4
4
3
Header Global
Rating
(10 max)
5
5
4
4
6
9
9
7
4
4
5
7
5
4
5
4
4
4
4
5
5
4
4
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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