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The Rivermouth Surf Forecast
/ CAL – Santa Cruz (30 breaks) / California (404 breaks) /
Surf Forecasts:
The Rivermouth surfForecast / CAL – Santa Cruz / USA
12 Day Weather and Surf, issued 9 am Wednesday 10 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
13.8° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for The Rivermouth this week:
The surf forecast for The Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 10) at 4PM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.1m and 15s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at The Rivermouth in the next 12 days are 1.7m 16s and forecast to arrive on Thursday (Dec 11) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Dec 16) at 4PM.
| Wave Type | Time (PST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Wed 10th Dec) | 4.5ft (1.3m) 13s |
| Best Surf | 7AM (Thu 11th Dec) | 5ft (1.6m) 14s |
| Most Powerful | 7PM (Thu 11th Dec) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for The Rivermouth over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Warm (max 22°C on Thu morning, min 15°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sun morning, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 12 | 13 | 14 | 14 | 15 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 10 | 9 | 9 | 16 | 12 | 12 | 11 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 436 | 634 | 767 | 988 | 1307 | 1207 | 1002 | 651 | 447 | 254 | 199 | 195 | 130 | 119 | 125 | 85 | 56 | 66 | 213 | 607 | 543 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross- off | cross- off | off | cross- off | cross- off | glass | cross- off | cross | glass | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | glass | glass | glass |
High Tide / height (m) | 1:56PM 1.37 | 4:29AM 1.46 | 3:11PM 1.16 | 5:10AM 1.50 | 4:48PM 1.01 | 5:46AM 1.54 | 6:40PM 0.98 | 6:18AM 1.58 | 8:12PM 1.03 | 6:47AM 1.62 | 9:20PM 1.12 | 7:16AM 1.66 | 10:14PM 1.20 | ||||||||
Low Tide / height (m) | 8:55PM 0.07 | 10:19AM 0.75 | 9:48PM 0.25 | 11:31AM 0.57 | 10:40PM 0.42 | 12:30PM 0.38 | 11:32PM 0.59 | 1:19PM 0.21 | 12:22AM 0.74 | 2:00PM 0.08 | 1:10AM 0.87 | 2:36PM -0.03 | 1:55AM 0.97 | ||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||
| Sunrise | 7:09 | - | - | 7:09 | - | - | 7:11 | - | - | 7:11 | - | - | 7:11 | - | - | 7:13 | - | - | 7:13 | - | - |
| Sunset | - | 4:51 | - | - | 4:51 | - | - | 4:51 | - | - | 4:51 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 | - |
 | |  | | | | | | | | | | |  |  | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 21 | 20 | 16 | 22 | 21 | 16 | 21 | 20 | 16 | 19 | 18 | 15 | 20 | 20 | 16 | 20 | 20 | 16 | 19 | 19 | 15 |
| Feels °C (?) | 19 | 18 | 13 | 20 | 19 | 13 | 19 | 18 | 13 | 16 | 16 | 13 | 18 | 17 | 13 | 17 | 17 | 13 | 19 | 19 | 16 |
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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 Rivermouth 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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Information about the The Rivermouth Surf forecast
The above surf forecast table for The Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at The Rivermouth can be found by selecting the local surf guide option on the grey menu. Our The Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (The Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for The Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
The Rivermouth is 2 km (1 miles) from Santa Cruz. If you plan a vacation in Santa Cruz, look for hotels and other accommodation in Santa Cruz. Santa Cruz has rooms for a wide range of budgets as well as car hire and transport links.
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