Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Francis Beach surfForecast / CAL – San Mateo / USA
48hr Weather and Surf, issued 3 am Friday 19 Dec 2025 PSTForecast 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
13.2° C
(Which is slightly warmer than usual)How big are the waves at Francis Beach today?
The current surf forecast for Francis Beach at 10AM is: 1.3m 10s primary swell from a West direction and 0.3m 12s secondary swell from a Southwest direction (forecast issued at 03:00am December 19). The wind direction is predicted to be cross-shore.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Dec) | 4.5ft (1.3m) | 10s |
| Afternoon (19 Dec) | 5ft (1.6m) | 11s |
| Evening (19 Dec) | 6ft (1.8m) | 11s |
Table - waves today at Francis Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||||||||||||
| 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 7 | 7 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 302 | 302 | 302 | 360 | 486 | 584 | 670 | 736 | 736 | 658 | 595 | 514 | 288 | 303 | 520 | 331 | 387 | 133 | 133 | 176 | 156 | 168 | 212 | 218 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross- off | cross | cross | cross | cross- off | cross | cross | cross- off | glass | cross | glass | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | on | glass |
High Tide / height (m) | 11:09PM 1.29 | 9:04AM 1.77 | 11:46PM 1.30 | 9:41AM 1.76 | 12:22AM 1.31 | 10:18AM 1.75 | ||||||||||||||||||
Low Tide / height (m) | 3:26AM 1.03 | 4:27PM -0.21 | 4:03AM 1.05 | 5:01PM -0.22 | 4:40AM 1.06 | 5:36PM -0.22 | ||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:18 | - | - | - | - | - | - | - | 7:18 | - | - | - | - | - | - | - | 7:20 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:54 | - | - |
 | | |  |  | |  | | | |  | | |  | | | |  |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | 4 | 3 | 1 | - | - | - | 1 | 2 | 1 | 2 | 8 | 11 | 19 | 5 | - | 6 | 8 |
| Temp. °C | 12 | 13 | 13 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 13 |
| Feels °C (?) | 12 | 12 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 13 | 14 | 14 | 13 | 13 |
- 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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