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:
The Patch surfForecast / CAL – Marin County / USA
48hr Weather and Surf, issued 9 pm Saturday 20 Dec 2025 PSTForecast update in hr min s Forecast update imminent
The Patch surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Patch sea temperature is
12.6° C
(Which is normal for this time of year)How big are the waves at The Patch today?
The current surf forecast for The Patch at 4AM is: 0.8m 11s primary swell from a West-northwest direction and 0.8m 11s secondary swell from a West direction, 1.1m 5s secondary swell from a Southwest direction (forecast issued at 09:00pm December 20). The wind direction is predicted to be onshore.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Dec) | 4ft (1.2m) | 7s |
| Afternoon (21 Dec) | 5ft (1.6m) | 8s |
| Evening (21 Dec) | 6.5ft (2.0m) | 9s |
Table - waves today at The Patch. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 11 | 11 | 11 | 7 | 7 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 528 | 227 | 193 | 154 | 160 | 134 | 203 | 350 | 506 | 589 | 510 | 466 | 400 | 294 | 228 | 197 | 197 | 169 | 140 | 121 | 373 | 467 | 589 | 784 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | on | on | on | cross- on | cross- off | glass | glass | cross- off | cross- off | cross- off | glass | glass | cross- on | on | cross- on | cross- on | on |
High Tide / height (m) | 1:17AM 0.98 | 11:14AM 1.29 | 1:52AM 0.99 | 11:53AM 1.26 | 2:27AM 1.00 | 12:34PM 1.21 | ||||||||||||||||||
Low Tide / height (m) | 6:29PM -0.14 | 6:08AM 0.64 | 7:04PM -0.14 | 6:47AM 0.64 | 7:40PM -0.12 | 7:32AM 0.63 | ||||||||||||||||||
Sat 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:54 | - | - | - | - | - | - | - | 4:54 |
 | | |  | |  | | | | | | | | | | | |  | | | | | | | |
Rain (mm) | 1 | 1 | 1 | - | - | 4 | 4 | 5 | 5 | 3 | 1 | 1 | - | 2 | 2 | 3 | 4 | 9 | 2 | 2 | 1 | 1 | 1 | 1 |
| Temp. °C | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 14 | 14 | 15 | 14 |
| Feels °C (?) | 14 | 12 | 12 | 11 | 11 | 10 | 8 | 8 | 9 | 10 | 13 | 13 | 13 | 13 | 11 | 11 | 11 | 12 | 12 | 13 | 11 | 9 | 7 | 5 |
- 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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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 The Patch 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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