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Francis Beach Surf Forecast
/ CAL – San Mateo (15 breaks) / California (404 breaks) /
Surf Forecasts:
Francis Beach surfForecast / CAL – San Mateo / USA
48hr Weather and Surf, issued 4 am Thursday 18 Sep 2025 PDT
How big are the waves at Francis Beach today?
The current surf forecast for Francis Beach at 11AM is: 1.7m 10s primary swell from a West-northwest direction and 0.6m 15s secondary swell from a South-southwest direction (forecast issued at 04:00am September 18). The wind direction is predicted to be onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 5ft (1.6m) | 9s |
| Afternoon (18 Sep) | 5.5ft (1.7m) | 10s |
| Evening (18 Sep) | 5ft (1.5m) | 10s |
Table - waves today at Francis Beach. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
| 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 | 2 PM | 5 PM | 8 PM | 11 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 14 | 14 | 10 | 10 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 202 | 250 | 360 | 550 | 584 | 596 | 543 | 404 | 411 | 358 | 316 | 322 | 246 | 194 | 186 | 148 | 132 | 123 | 121 | 109 | 109 | 103 | 98 | 98 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | glass | glass | on | cross- on | cross- on | cross- on | glass | cross | glass | cross | glass | on | on | on | cross- on | glass | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 9:46AM 1.52 | 8:51PM 1.73 | 10:19AM 1.57 | 9:42PM 1.70 | 10:49AM 1.60 | 10:29PM 1.65 | ||||||||||||||||||
Low Tide / height (m) | 3:01AM -0.04 | 3:06PM 0.70 | 3:42AM 0.00 | 3:52PM 0.57 | 4:18AM 0.08 | 4:33PM 0.45 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
| Sunrise | - | - | 6:52 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:10 | - | - | - | - | - | - | - | 7:09 | - | - |
 |  |  |  | | | |  | | |  | | | |  | | | | | | | | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 16 | 15 | 18 | 18 | 16 | 16 | 15 | 15 | 15 | 15 | 17 | 18 | 18 | 16 | 15 | 15 | 15 | 16 | 19 | 19 | 18 | 16 | 15 |
| Feels °C (?) | 16 | 17 | 15 | 18 | 17 | 15 | 16 | 15 | 15 | 15 | 15 | 17 | 17 | 18 | 16 | 15 | 15 | 15 | 16 | 18 | 17 | 16 | 15 | 15 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for CAL - San Mateo
Continuing clean conditions at Francis Beach (calm at Half Moon Bay wx 2 km from Francis Beach). 2.1m 10s swell from the WNW with a 0.5m 14s groundswell from the SSW. 2 swells combining to make bigger set waves.
1 h 10 min ago
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 Francis 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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