Surf Forecasts:
Santa Maria Rivermouth surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 5AM (local time) - 2.5ft (0.7m), 16s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 5AM (local time) - 3ft (0.9m), 17s period, SW swell with 499 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 5AM (local time) - 2.5ft (0.7m), 16s period with SW swell.
Best Forecast Surf Conditions for Santa Maria Rivermouth this week:
The surf forecast for Santa Maria Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 09) at 5AM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.6m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Santa Maria Rivermouth in the next 16 days are 0.9m 17s and forecast to arrive on Saturday (Aug 15) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 9th Aug) | 2.5ft (0.7m) 16s |
| Best Surf | 5AM (Sun 9th Aug) | 2.5ft (0.7m) 16s |
| Most Powerful | 5AM (Sat 15th Aug) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Santa Maria Rivermouth over the next 16 days.
Short Range ForecastMostly dry. Warm (max 20°C on Sun afternoon, min 14°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Tue morning, min 15°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SSW 16 | SW 16 | SW 15 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | SSW 13 | SW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 19 | SW 18 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 246 | 173 | 258 | 181 | 189 | 178 | 164 | 161 | 133 | 125 | 197 | 194 | 138 | 163 | 206 | 157 | 151 | 188 | 179 | 255 | 312 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | glassy | on | on | glassy | on | on | cross-on | on | cross-on | glassy | cross-on | on | glassy | on | on | cross-on |
High Tide | 8:33AM1.37m | 6:36PM2.22m | 9:18AM1.47m | 7:37PM2.32m | 9:56AM1.56m | 8:33PM2.39m | 10:32AM1.64m | 9:25PM2.40m | 11:07AM1.73m | 10:15PM2.33m | 11:42AM1.81m | 11:04PM2.20m | 12:16PM1.87m | 11:53PM2.00m | |||||||
Low Tide | 11:55AM1.24m | 2:24AM0.14m | 1:13PM1.20m | 3:12AM0.02m | 2:17PM1.12m | 3:55AM-0.03m | 3:15PM1.02m | 4:36AM-0.02m | 4:09PM0.92m | 5:14AM0.07m | 5:02PM0.84m | 5:50AM0.21m | 5:56PM0.79m | ||||||||
 |  |  | | |  | | | | | | |  | | | | | | | | | |
 | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — |
 | — | 7:58 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 15 | 19 | 20 | 18 | 20 | 19 | 17 | 19 | 18 | 16 | 17 | 17 | 16 | 18 | 18 | 17 | 18 | 18 | 16 |
Feels °C | 16 | 15 | 14 | 19 | 20 | 18 | 20 | 19 | 17 | 19 | 17 | 15 | 16 | 16 | 16 | 19 | 18 | 18 | 18 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SSW 16 | SW 16 | SW 15 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SW 18 | SW 18 |
| kJ | 246 | 173 | 258 | 181 | 189 | 178 | 164 | 161 | 106 | 64 | 108 | 68 | 103 | 124 | 121 | 80 | 80 | 61 | 54 | 255 | 312 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | WNW 8 | WNW 8 | SW 15 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 |
| kJ | 49 | 69 | 41 | 40 | 171 | 169 | 125 | 120 | 116 | 125 | 197 | 194 | 138 | 163 | 206 | 157 | 151 | 188 | 134 | 132 | 164 |
Swell 3 Height (m) Direction Period (s) | W 13 | W 13 | SW 12 | NW 11 | SW 11 | SW 11 | SW 11 | SW 20 | SW 19 | WNW 11 | SSW 12 | SSW 12 | SW 13 | SSW 11 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SW 19 | WNW 8 | WNW 8 |
| kJ | 30 | 14 | 50 | 30 | 32 | 31 | 19 | 134 | 133 | 25 | 60 | 56 | 83 | 41 | 23 | 39 | 36 | 33 | 179 | 51 | 33 |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 14 | 36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 59 | 96 | 18 | 98 | 59 | 0 | 42 | 96 | 0 | 43 | 59 | 18 | 243 | 59 | 0 | 43 | 404 | 0 | 42 | 96 | 21 |
Best forecast wave conditions in Santa Barbara | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Santa Maria 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.
Information about the Santa Maria Rivermouth Surf forecast
The above surf forecast table for Santa Maria Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Santa Maria Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Santa Maria 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 (Santa Maria 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 Santa Maria 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.
Santa Maria Rivermouth is 20 km (12 miles) from Arroyo Grande. If you plan a vacation in Santa Barbara, look for hotels and other accommodation in Arroyo Grande. Arroyo Grande has rooms for a wide range of budgets as well as car hire and transport links.
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