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 Rivermouth surfForecast / CAL – Santa Cruz / USA
48hr Weather and Surf, issued 3 am Friday 19 Dec 2025 PSTForecast update in hr min s Forecast update imminent
The Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Rivermouth sea temperature is
14.6° C
(Which is 1.9°C warmer than normal for this time of year)How big are the waves at The Rivermouth today?
The current surf forecast for The Rivermouth at 7AM is: 0.9m 11s primary swell from a West direction (forecast issued at 03:00am December 19). An open ocean swell of 0.7m 10s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Dec) | 3.5ft (1.0m) | 10s |
| Afternoon (19 Dec) | 4.5ft (1.4m) | 10s |
| Evening (19 Dec) | 5ft (1.6m) | 11s |
Table - waves today at The Rivermouth. (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 | 11 | 11 | 10 | 11 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 7 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 260 | 141 | 182 | 196 | 408 | 450 | 531 | 631 | 631 | 611 | 531 | 332 | 220 | 264 | 259 | 284 | 286 | 292 | 274 | 326 | 146 | 164 | 228 | 235 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | glass | cross- on | glass | cross- on | glass | glass | glass | cross | glass | glass | glass | glass | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 11:38PM 1.28 | 8:52AM 1.74 | 12:13AM 1.28 | 9:26AM 1.75 | 12:44AM 1.27 | 10:02AM 1.73 | ||||||||||||||||||
Low Tide / height (m) | 3:11AM 1.09 | 4:14PM -0.17 | 3:43AM 1.11 | 4:46PM -0.18 | 4:12AM 1.12 | 5:17PM -0.18 | ||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:16 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:53 | - | - |
 | |  |  |  | | | |  | | | |  | | | | | | |  |  |  | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | 1 | 2 | 1 | 1 | 3 | 14 | 8 | 2 | 3 | 15 |
| Temp. °C | 12 | 12 | 12 | 13 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels °C (?) | 11 | 12 | 12 | 12 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 16 | 17 | 17 | 15 | 14 | 13 | 12 | 11 | 10 | 12 | 13 | 14 | 14 |
- 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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