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:
Princeton Breakwater surfForecast / CAL – San Mateo / USA
48hr Weather and Surf, issued 3 am Thursday 18 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Princeton Breakwater surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Princeton Breakwater sea temperature is
12.9° C
(Which is normal for this time of year)How big are the waves at Princeton Breakwater today?
The current surf forecast for Princeton Breakwater at 7AM is: 1.5m 12s primary swell from a West direction and 0.7m 10s secondary swell from a Northwest direction (forecast issued at 03:00am December 18). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Dec) | 5ft (1.6m) | 11s |
| Afternoon (18 Dec) | 5ft (1.5m) | 11s |
| Evening (18 Dec) | 4.5ft (1.3m) | 10s |
Table - waves today at Princeton Breakwater. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 12 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 686 | 535 | 594 | 606 | 524 | 449 | 374 | 353 | 302 | 302 | 353 | 416 | 505 | 670 | 750 | 750 | 750 | 670 | 595 | 505 | 288 | 258 | 520 | 482 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | glass | glass | cross | cross | cross | glass | glass | glass | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross- off | cross | cross | cross | cross- on | cross- on |
High Tide / height (m) | 10:28PM 1.26 | 8:29AM 1.76 | 11:09PM 1.29 | 9:04AM 1.77 | 11:46PM 1.30 | 9:41AM 1.76 | ||||||||||||||||||
Low Tide / height (m) | 2:47AM 0.99 | 3:53PM -0.18 | 3:26AM 1.03 | 4:27PM -0.21 | 4:03AM 1.05 | 5:01PM -0.22 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:18 | - | - | - | - | - | - | - | 7:18 | - | - | - | - | - | - | - | 7:20 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:53 | - | - |
 |  | |  | | | | | |  | |  |  | |  | | | | |  | | |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | - | - | - | 2 | 4 | 4 | 4 | 8 | 11 |
| Temp. °C | 11 | 10 | 11 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 15 |
| Feels °C (?) | 9 | 8 | 10 | 12 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 16 | 15 | 15 | 13 | 13 | 13 | 12 |
- 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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