
Surf Forecasts:
Barron Rivermouth surf forecast from 11 Aug 2026:
- Best quality surf: Friday 14 Aug, 8AM (local time) - 2.5ft (0.8m), 18s period, SW swell with offshore winds.
- Most powerful swell: Friday 14 Aug, 8PM (local time) - 4ft (1.2m), 17s period, SW swell with 841 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 11PM (local time) - 2ft (0.6m), 18s 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 Tuesday (Aug 11) at 11PM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.6m and 13s. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Barron Rivermouth in the next 16 days are 1.2m 17s and forecast to arrive on Friday (Aug 14) at 8PM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 11th Aug) | 2ft (0.6m) 18s |
| Best Surf | 8AM (Fri 14th Aug) | 2.5ft (0.8m) 18s |
| Most Powerful | 8PM (Fri 14th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Barron Rivermouth over the next 16 days.
The Lowdown
Alright, mate, Rusty here. Let’s have a look at what’s on the table for the next couple of weeks.
It’s a pretty quiet stretch overall, with only one spot that’s really worth talking about: Barron Rivermouth. This is a point/river setup that’s exposed to the SW swell, and the optimum direction is SW, which lines up nicely with what’s coming. The water temp is sitting at 89°F, which is a touch warmer than normal for this time of year – about 4°F warmer, so you’ll feel that extra warmth.
The first real chance of anything decent comes on Tuesday, August 11th in the morning. Swell is small at 2 ft from the SW, with a very long period of 18 seconds – that’s groundswell, folks. At a river mouth, that long period can actually help the wave shape up nicely. Combined energy is moderate (543). The wind is cross-on from the W at 9 mph, so it’s a bit choppy, and the score is low. It’s marginal, but it’s the best of what’s around early.
Wednesday morning, August 12th, sees a bit more size – 3 ft from the SW, period dropping to 16 seconds, still a solid groundswell. Wind is offshore from the WSW at 3 mph, which is a major positive – that’ll keep things clean. Combined energy is moderate (383). Still marginal, but with that offshore wind, it’s the pick of the early week.
Thursday morning, August 13th, is similar: 3 ft SW, 16-second period, light offshore wind from the SW at 6 mph. Energy is moderate (430). Again, marginal, but the wind is your friend.
Friday morning, August 14th, is the standout of the first week. Swell pushes up to 4 ft from the SW, period still 18 seconds, and the wind is offshore from the SW at 6 mph. Combined energy jumps to moderate (635). This is the best early window – clean, long-period swell, and the river mouth should handle it well. Crowds are sometimes an issue here, so keep that in mind.
Saturday morning, August 15th, holds at 4 ft from the SW, 16-second period, light offshore wind from the SW again. Energy is moderate (570). Still a decent option, but it’s a step down from Friday.
After that, the size drops off. From Sunday, August 16th, through the rest of the week, we’re looking at 3 ft to 3 ft, with periods slowly dropping from 15 to 13 seconds. Winds are mostly cross-on or onshore, so conditions get choppy. The energy drops from moderate (368) down to weak (155 by Friday, August 21st). It’s a long stretch of pretty poor surf.
The second week is even quieter. From around August 22nd to 26th, the swell is tiny – 1 ft to 2 ft – with periods all over the shop. There’s a brief moment on Tuesday afternoon, August 25th, with a cross-offshore wind from the N at 9 mph that cleans things up, but the swell is only 2 ft and the energy is weak (169). It’s surfable but very ordinary.
The best bet overall is Friday morning, August 14th. That’s the one with the biggest swell (4 ft, SW), longest period (18 seconds), and clean offshore wind. It’s not big, but it’s the most promising wave in a very flat forecast.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 31°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Warm (max 31°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 15 | SW 17 |
Wave Graph | |||||||||||||||||||||
307 | 307 | 190 | 366 | 306 | 339 | 291 | 198 | 258 | 379 | 781 | 651 | 560 | 553 | 395 | 355 | 355 | 350 | 293 | 365 | 175 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | off | on | cross-on | glassy | on | cross-on | off | on | cross-on | off | on | cross-on | glassy | cross-on | cross-on | cross-off | cross-on | cross-on | glassy |
High Tide | 8:45AM1.45m | 7:39PM1.82m | 9:10AM1.50m | 8:21PM1.82m | 9:34AM1.53m | 9:00PM1.75m | 9:58AM1.55m | 9:37PM1.63m | 10:20AM1.56m | 10:12PM1.47m | 10:40AM1.54m | 10:47PM1.30m | 10:59AM1.52m | 11:22PM1.12m | |||||||
Low Tide | 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 | 4:16PM0.57m | 4:17AM0.48m | 4:53PM0.59m | 4:28AM0.63m | 5:32PM0.64m | 4:29AM0.76m | |||||||
5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | |
— | 6:39 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:36 | — | |
mm | — | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 30 | 31 | 29 | 29 | 30 | 29 | 30 | 31 | 29 | 30 | 30 | 29 | 29 | 31 | 27 | 29 | 31 | 29 | 30 | 30 | 29 |
Feels °C | 33 | 33 | 32 | 33 | 32 | 32 | 34 | 33 | 33 | 34 | 32 | 33 | 33 | 33 | 30 | 33 | 33 | 32 | 34 | 34 | 34 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 15 | SW 13 |
307 | 307 | 190 | 366 | 306 | 339 | 291 | 198 | 258 | 255 | 781 | 651 | 560 | 553 | 395 | 355 | 355 | 350 | 293 | 365 | 142 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | WSW 13 | W 24 | SW 22 | SW 21 | SW 20 | SW 19 | SW 18 | W 8 | WSW 7 | WSW 7 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | W 3 | W 3 | S 8 | SW 17 |
162 | 134 | 103 | 17 | 11 | 18 | 70 | 134 | 184 | 379 | 1 | 5 | 5 | 8 | 15 | 13 | 6 | 2 | 1 | 5 | 175 | |
Swell 3 Height (m) Direction Period (s) | SW 14 | — | WSW 7 | — | — | SW 21 | SW 21 | SW 10 | W 5 | W 8 | — | S 10 | WSW 7 | — | WSW 7 | — | — | S 8 | W 11 | W 11 | W 5 |
74 | — | 5 | — | — | 18 | 69 | 26 | 2 | 1 | — | 17 | 5 | — | 4 | — | — | 5 | 9 | 9 | 2 | |
Wind waves Height (m) Direction Period (s) | — | W 2 | — | — | WNW 3 | — | — | — | — | — | SW 10 | — | — | WSW 7 | — | — | WSW 8 | — | — | W 2 | — |
— | 1 | — | — | 1 | — | — | — | — | — | 35 | — | — | 5 | — | — | 24 | — | — | 1 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 99 | 271 | 0 | 45 | 271 | 0 | 99 | 271 | 0 | 99 | 271 | 0 | 99 | 271 | 0 | 99 | 271 | 0 | 99 | 271 | 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.











