
Surf Forecasts:
Barron Rivermouth surf forecast from 5 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 11AM (local time) - 2.5ft (0.7m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 2PM (local time) - 2.5ft (0.8m), 18s period, SW swell with 375 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 2AM (local time) - 1.5ft (0.4m), 15s 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 Wednesday (Aug 05) at 2AM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.4m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Barron Rivermouth in the next 16 days are 0.8m 18s and forecast to arrive on Tuesday (Aug 11) at 2PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 5th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 11AM (Tue 11th Aug) | 2.5ft (0.7m) 18s |
| Most Powerful | 2PM (Tue 11th Aug) | 2.5ft (0.8m) 18s |
Table - best surf conditions forecast for Barron Rivermouth over the next 16 days.
The Lowdown
Alright, Rusty here, let’s take a look what’s on the menu for the Barron Rivermouth over the next couple of weeks.
Right off the bat, we’ve got a bit of a slow start. The first few days of August are pretty rough, mate. The swell is tiny, barely scraping 2ft, and the wind is mostly onshore or cross-onshore. It’s small, weak, and choppy—not worth getting wet for. The water temp on that Tuesday afternoon is sitting at a very warm 89°F, which is about 4°F warmer than usual for this time of year. That’s definitely notable.
Things stay pretty ordinary through Wednesday and Thursday. The swell hangs around 1ft to 2ft, and the wind keeps messing things up. We see a bit of a jump in combined swell energy on Thursday afternoon—221 (moderate energy)—but the wind is useless. Not a single decent wave in sight for the first week.
By Friday morning, the 7th of August, we start to see a little more life. Swell is still modest at 2ft, but the period stretches out to 18 seconds. That’s some long-period groundswell, and the combined energy is up to 298 (moderate). The wind is light and cross-onshore, though, so it’s still only a marginal call. The afternoon builds to 3ft, but the onshore wind kills it.
The weekend offers more of the same—small, mostly onshore, and marginal. The swell direction is a steady SW, which is the optimum for this spot, but it’s just not packing enough punch.
Now, here’s where it gets interesting. Tuesday morning, the 11th of August. The stars line up for a brief window. Swell is 2ft from the SW with a 18-second period, giving us a combined energy of 470 (moderate). The wind is glassy, mate—dead calm. Absolutely glassy. That’s a rare treat. The water’s going to be like a mirror, and those long period lines will be peeling down the point. This is the clear standout of the whole outlook. The break is a point/river setup, so those long-period swells will actually love it here. Keep in mind, crowds are possible at times, so get in early.
The rest of the second week fades back into mediocrity. The swell slowly builds, with Friday the 14th of August seeing 4ft waves in the afternoon, and the combined energy hitting 1109 (strong). That’s the biggest energy of the whole window. But the wind is cross-onshore and the conditions are lumpy. It’s a bit of a shame, really. By the 16th and 17th, we’re back to small, messy surf, and the final days run out of steam.
Bottom line: This is not a purple patch for the Barron Rivermouth. There’s one real moment—Tuesday the 11th in the morning—that could be special if you nail the tide. After that, the swell gets bigger but the wind doesn't cooperate. Don't get your hopes up for the rest of it.
Stay salty.
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 31°C on Fri afternoon, min 26°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sat afternoon. Warm (max 30°C on Sat afternoon, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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 15 | WSW 14 | SW 20 | SW 13 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 |
Wave Graph | |||||||||||||||||||
54 | 54 | 40 | 60 | 88 | 114 | 215 | 194 | 362 | 254 | 357 | 287 | 255 | 203 | 238 | 173 | 171 | 205 | 133 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | cross-off | on | cross-on | cross-off | cross-on | cross-on | off | cross | on | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | off |
High Tide | 00:21AM1.06m | 12:26PM1.50m | 3:15AM0.94m | 1:33PM1.47m | 3:16PM1.48m | 7:45AM1.21m | 4:50PM1.56m | 7:57AM1.31m | 5:58PM1.67m | 8:20AM1.39m | 6:52PM1.77m | ||||||||
Low Tide | 5:23AM0.78m | 8:18PM0.63m | 5:08AM0.93m | 10:34PM0.50m | 11:52PM0.32m | 11:02AM1.14m | 00:43AM0.15m | 12:17PM1.04m | 1:25AM0.02m | 1:06PM0.92m | 2:03AM-0.04m | ||||||||
— | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | |
— | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:42 | — | — | 6:40 | — | |
mm | — | — | — | 3 | — | — | — | — | — | 1 | 1 | 3 | 4 | — | — | 1 | — | — | 2 |
Temp °C | 29 | 29 | 30 | 28 | 30 | 30 | 29 | 30 | 31 | 28 | 29 | 30 | 29 | 29 | 30 | 26 | 29 | 30 | 29 |
Feels °C | 34 | 33 | 32 | 31 | 35 | 33 | 33 | 34 | 35 | 31 | 32 | 33 | 34 | 33 | 33 | 29 | 33 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 15 | SW 11 | SW 14 | SW 13 | SW 18 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 |
50 | 54 | 20 | 47 | 88 | 114 | 106 | 194 | 362 | 254 | 357 | 287 | 255 | 203 | 238 | 173 | 171 | 205 | 123 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 12 | WSW 14 | W 4 | WSW 13 | SW 13 | SW 18 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 22 | W 3 | SW 20 | SW 19 | SW 19 |
54 | 47 | 40 | 3 | 35 | 63 | 215 | 100 | 124 | 89 | 89 | 89 | 43 | 43 | 73 | 1 | 134 | 184 | 133 | |
Swell 3 Height (m) Direction Period (s) | WSW 4 | SSW 8 | SW 14 | SW 20 | SW 20 | SW 13 | W 4 | S 7 | — | W 5 | W 4 | SW 23 | SW 7 | WSW 3 | S 8 | WSW 21 | W 4 | S 8 | W 3 |
2 | 7 | 33 | 60 | 60 | 44 | 2 | 4 | — | 4 | 2 | 21 | 9 | 1 | 5 | 45 | 1 | 5 | 1 | |
Wind waves Height (m) Direction Period (s) | — | — | W 3 | — | — | WSW 4 | — | — | W 3 | — | — | SW 8 | — | — | W 3 | WNW 3 | — | W 3 | — |
— | — | 2 | — | — | 1 | — | — | 1 | — | — | 9 | — | — | 3 | 2 | — | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 99 | 275 | 0 | 99 | 273 | 0 | 99 | 273 | 0 | 99 | 273 | 0 | 99 | 271 | 0 | 99 | 271 | 0 |
Best forecast wave conditions in Sinaloa | |||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











