San Gregorio State Beach surfForecast / CAL – San Mateo / USA

information circle48hr Weather and Surf, issued 10 pm Saturday 21 Mar 2026 PDT
Forecast update in hr  min  s Forecast update imminent
San Gregorio State Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's San Gregorio State Beach sea temperature is
13.3° C
(Which is 1.1°C warmer than normal for this time of year)

How big are the waves at San Gregorio State Beach today?

The current surf forecast for San Gregorio State Beach at 6AM is: 2.4m 10s primary swell from a West-northwest direction and 0.4m 14s secondary swell from a South-southwest direction (forecast issued at 10:00pm March 21). The wind direction is predicted to be glassy and the swell rating is 4.

Time (PDT) & DateWave HeightWave Period
Morning (22 Mar)7.5ft (2.3m)10s
Afternoon (22 Mar)6.5ft (2.0m)10s
Evening (22 Mar)6ft (1.9m)9s

Table - waves today at San Gregorio State Beach. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Sat
21
Sunday
22
Monday
23
Tuesday
24
8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM
Rating
(10 max)
1
1
!
4
3
0
0
0
1
0
0
1
2
1
1
0
2
2
1
1
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.5
WNW
2.5
WNW
3
NW
2.5
WNW
2.3
WNW
2.1
WNW
2
WNW
1.9
WNW
1.9
WNW
1.9
NW
2.1
NW
2.1
NW
2
WNW
1.9
NW
1.8
NW
1.7
WNW
1.8
NW
1.2
WNW
1.1
NW
1
WNW
1.3
WNW
1.2
WNW
1.2
NW
1
WNW
Period(s) (?)9991010101010109989910111010101011111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)12031256133911591001815733657643612628613595572625610677277239225346300319234
Wind
(km/h)
20
NNW
15
NNW
15
NW
5
NW
5
N
20
NW
25
NW
20
NNW
15
NNW
15
NNW
20
NNW
15
NNW
15
NNW
15
NNW
15
NW
20
NNW
15
NNW
10
N
10
NNW
10
N
10
NNW
15
NNW
20
NNW
20
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
glasscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrosscross-
on
cross-
on
cross-
on
crosscrosscrosscrosscrosscross-
on
cross-
on
cross-
on
High Tide
/ height (m)
12:58AM
2.35
2:31PM
1.75
1:41AM
2.33
3:49PM
1.65
2:33AM
2.27
Low Tide
/ height (m)
8:01AM
0.32
7:27PM
1.13
9:02AM
0.32
8:16PM
1.28
10:13AM
0.34
Sat
21
Sunday
22
Monday
23
Tuesday
24
Sunrise----7:09-------7:09-------7:07---
Sunset-------7:22-------7:22-------7:23
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C121010101215161411111010111516151212121213181918
Feels °C (?)86781011121187668121211899910131413
  • 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

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our San Gregorio State Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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