Surf Forecasts:
Barron Rivermouth surf forecast from 9 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 8AM (local time) - 3ft (0.9m), 16s period, SW swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 5PM (local time) - 3.5ft (1.1m), 18s period, SW swell with 781 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 5AM (local time) - 2.5ft (0.8m), 14s period with SW swell.
Best Forecast Surf Conditions for Barron Rivermouth this week:
The surf forecast for Barron 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 0.8m and 14s period with a secondary swell of 0.4m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Barron Rivermouth in the next 16 days are 1.1m 18s and forecast to arrive on Friday (Aug 14) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 9th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 8AM (Wed 12th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 5PM (Fri 14th Aug) | 3.5ft (1.1m) 18s |
Table - best surf conditions forecast for Barron Rivermouth over the next 16 days.
The Lowdown
Alright, Rusty here, looking ahead at the next couple of weeks. It's a classic tale of patience being a virtue. The first week and a half is a tough slog, but there is a real treat waiting for those who can wait.
Right from the get-go, things are quiet. The first 10 days are a write-off for anything decent. We're looking at tiny, weak swell with dodgy winds. The water temp is just about average for this time of year, nothing wild going on there. For Barron Rivermouth, we’re seeing a lot of mornings with a light cross-onshore breeze and only around 2.3ft of swell. The combined energy is weak, sitting around 264 (moderate wave energy). The afternoons get choppy with moderate breezes, making it not worth paddling out. This is a long dry spell.
The first real glimmer comes on the morning of Tuesday, the 19th of August. The wind goes glassy – dead calm. The swell holds steady at 2.6ft from the SW with a solid 15-second period. It's not big, but with clean conditions, it'll be fun for an intermediate on a longboard. The combined energy is still only moderate (308), but the glassy conditions make it a standout for that quick, clean session.
Then, things get interesting. On Monday morning, the 24th of August, the light at the end of the tunnel arrives. We get a clean 5.9ft SW swell with a 12-second period and a light cross-offshore wind. The combined energy jumps right up to 1216 (strong wave energy). That's the best of the whole outlook. This is a proper groundswell, best on the point/river setup here. It’s a bit too big for beginners, but for anyone with some skill, it’ll be excellent.
Summary: Tough start, but glassy on the 19th is a nice little window, and the 24th is the real pay-off. A bloke could wait all fortnight for that Monday morning.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 30°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed night. Warm (max 31°C on Wed afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 19 | SW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 18 | SW 18 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 255 | 203 | 238 | 173 | 171 | 184 | 133 | 307 | 307 | 190 | 366 | 251 | 339 | 291 | 198 | 258 | 379 | 781 | 746 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | off | cross | cross-on | glassy | on | cross-on | cross-off | on | cross-on | glassy | cross-on | on | glassy | cross-on | cross-on | off |
High Tide | 7:57AM1.31m | 5:58PM1.67m | 8:20AM1.39m | 6:52PM1.77m | 8:45AM1.45m | 7:39PM1.82m | 9:10AM1.50m | 8:21PM1.82m | 9:34AM1.53m | 9:00PM1.75m | 9:58AM1.55m | 9:37PM1.63m | |||||||
Low Tide | 00:43AM0.15m | 12:17PM1.04m | 1:25AM0.02m | 1:06PM0.92m | 2:03AM-0.04m | 1:48PM0.80m | 2:37AM-0.03m | 2:26PM0.70m | 3:08AM0.04m | 3:04PM0.62m | 3:36AM0.17m | 3:40PM0.58m | 3:59AM0.32m | ||||||
 |  |  |  |  | |  | | | | | |  |  | | | | | | |
 | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — |
 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — |
mm | 1 | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | 1 |
Temp °C | 28 | 29 | 30 | 26 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 31 | 29 | 30 | 31 | 29 | 30 | 30 | 28 |
Feels °C | 32 | 33 | 33 | 28 | 32 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 32 | 34 | 34 | 32 | 34 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 18 | SW 18 | SW 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 18 | SW 16 |
| kJ | 255 | 203 | 238 | 173 | 171 | 168 | 119 | 307 | 307 | 103 | 366 | 251 | 339 | 291 | 198 | 258 | 258 | 781 | 746 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 22 | WSW 21 | SW 20 | SW 19 | SW 19 | SW 14 | SW 13 | SW 17 | — | W 24 | WSW 5 | W 6 | SW 20 | SW 19 | SW 18 | SSW 10 | W 5 |
| kJ | 59 | 43 | 73 | 45 | 134 | 184 | 133 | 162 | 134 | 190 | — | 11 | 9 | 6 | 134 | 184 | 379 | 20 | 2 |
Swell 3 Height (m) Direction Period (s) | SW 24 | SW 21 | — | W 3 | S 8 | — | WNW 3 | SW 14 | — | WNW 3 | — | — | SW 22 | SW 21 | SSW 10 | WSW 6 | W 5 | — | W 5 |
| kJ | 22 | 18 | — | 1 | 5 | — | 1 | 74 | — | 2 | — | — | 18 | 70 | 19 | 12 | 2 | — | 5 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 7 | — | — | WSW 8 | NW 3 | — | WNW 3 | — | — | WSW 5 | — | — | W 6 | — | — | W 5 | — |
| kJ | — | — | 11 | — | — | 11 | 1 | — | 3 | — | — | 5 | — | — | 6 | — | — | 4 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 99 | 36 | 0 | 38 | 271 | 0 | 99 | 271 | 0 | 99 | 271 | 0 | 99 | 271 | 0 | 99 | 68 | 0 |
Best forecast wave conditions in Sinaloa | |||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||
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Information about the Barron Rivermouth Surf forecast
The above surf forecast table for Barron Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Barron Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Barron 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 (Barron 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 Barron 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.
Are you planning a holiday in Sinaloa? If you are looking for accommodation near Barron Rivermouth, camping, hotels and holiday cottages in Sinaloa, consider staying in Mazatlan which is 16 km (10 miles) away. Other places in and around Sinaloa where you can find information about places to rent, and car hire include Escuinapa de Hidalgo which is 58 km (36 miles) away and El Salto, 99 km (61 miles) away.
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