Surf Forecasts:
Barron Rivermouth surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 8AM (local time) - 3.5ft (1.0m), 16s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 8AM (local time) - 3.5ft (1.0m), 16s period, SW swell with 492 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 11PM (local time) - 2ft (0.6m), 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 Saturday (Sep 12) at 11PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.3m and 3s. 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 1.0m 16s and forecast to arrive on Wednesday (Sep 16) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Monday (Sep 14) at 5AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 12th Sep) | 2ft (0.6m) 14s |
| Best Surf | 8AM (Wed 16th Sep) | 3.5ft (1.0m) 16s |
| Most Powerful | 8AM (Wed 16th Sep) | 3.5ft (1.0m) 16s |
Table - best surf conditions forecast for Barron Rivermouth over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s chew on what Barron Rivermouth is serving up.
First few days are flat-lining. Small surf and onshore breezes are keeping things messy. The water is roasting at 90°F, way warmer than normal for September – that’s a proper tropical feel. Wave energy is low, hanging around 200 to 300, not enough to get the heart pumping.
Come Tuesday morning, September 15th, we finally get a clean look. A 3ft southwest swell with a 16-second period – long-period groundswell that this point/river break will love. And the wind? Glassy. Dead flat. Wave energy climbs to a moderate 314. Crowds can show up sometimes, but on a morning like this, it’ll be worth sharing a few waves. This is a fairly consistent spot, so it’s not a fluke.
Wednesday and Thursday are a step back – same 3ft swell but with onshore winds and chop. Energy pushes into the 400s and even 500s, but that’s all wasted with a moderate cross-onshore messing it up.
The real standout, the one to plan your week around, is Monday morning, September 21st. We’ve got a 3ft southwest swell, 17-second period, and again – glassy conditions. Wave energy is a solid 543, and the forecast says expect very good surf. The direction is right on the money for this break, the wind is perfect, and that long period will deliver clean, lined-up sets at the river mouth. This is your best shot of the whole 16 days.
After that, it fades. The swell holds around 3ft to 3ft, but the wind turns cross-onshore or moderate again, and the energy drops back into the 200s and 300s by the 24th and 25th. The second week is pretty lackluster – small, wind-affected, not worth rushing out for.
Mark your calendar: Tuesday the 15th is good, but Monday the 21st is the one to score.
- Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Sun night. Warm (max 31°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue night. Warm (max 31°C on Thu afternoon, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 20 | SW 19 | SW 19 | SW 19 |
Wave Graph  | ||||||||||||||||||||
 kJ | 160 | 144 | 140 | 108 | 127 | 152 | 246 | 304 | 302 | 384 | 366 | 486 | 352 | 301 | 297 | 248 | 312 | 303 | 303 | 278 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | on | cross-on | cross-off | glassy | cross-on | off | cross-on | on | cross-off | cross-on | cross-on | cross-off | on | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 9:23PM1.57m | 9:24AM1.68m | 9:54PM1.43m | 9:40AM1.65m | 10:23PM1.28m | 9:55AM1.61m | 10:51PM1.12m | 10:06AM1.54m | 11:20PM0.97m | 10:12AM1.47m | 10:07AM1.38m | |||||||||
Low Tide | 3:17PM0.35m | 3:16AM0.47m | 3:46PM0.35m | 3:29AM0.60m | 4:15PM0.39m | 3:37AM0.71m | 4:45PM0.47m | 3:37AM0.79m | 5:18PM0.57m | 3:18AM0.85m | 6:09PM0.69m | 11:36PM0.68m | ||||||||
 |  | | |  |  | |  | | | | | |  | | | | | | | |
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — |
 | 6:10 | — | — | 6:09 | — | — | 6:08 | — | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — | — | 6:05 | — |
mm | — | — | — | — | 9 | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | 3 |
Temp °C | 30 | 29 | 30 | 31 | 29 | 28 | 29 | 28 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 31 | 29 | 30 | 31 | 28 |
Feels °C | 31 | 33 | 34 | 34 | 33 | 32 | 31 | 32 | 32 | 33 | 34 | 33 | 32 | 32 | 35 | 34 | 32 | 35 | 34 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 19 |
| kJ | 160 | 144 | 140 | 108 | 104 | 152 | 246 | 304 | 302 | 384 | 366 | 486 | 352 | 301 | 297 | 248 | 176 | 171 | 168 | 278 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | W 3 | SW 19 | SW 19 | SW 19 | S 4 | SW 12 | SW 12 | S 9 | SW 11 | WSW 6 | SW 11 | SW 11 | SW 22 | SW 21 | SW 21 | SW 20 | SW 19 | SW 19 | SW 13 |
| kJ | 14 | 2 | 59 | 96 | 127 | 9 | 71 | 69 | 6 | 19 | 4 | 29 | 31 | 119 | 162 | 224 | 312 | 303 | 303 | 134 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSW 8 | W 4 | SW 16 | W 4 | SW 12 | SSW 4 | W 4 | SW 6 | S 8 | S 8 | WSW 24 | SW 24 | WNW 3 | WSW 6 | SW 6 | WNW 4 | WNW 4 | S 8 | W 4 |
| kJ | 49 | 7 | 1 | 66 | 2 | 73 | 7 | 2 | 2 | 5 | 5 | 54 | 87 | 2 | 3 | 1 | 2 | 3 | 6 | 2 |
Wind waves Height (m) Direction Period (s) | WNW 3 | WNW 4 | — | W 4 | — | — | W 4 | — | — | WSW 6 | — | — | WNW 3 | NW 3 | — | WNW 3 | NW 4 | — | WNW 3 | — |
| kJ | 2 | 4 | — | 3 | — | — | 1 | — | — | 7 | — | — | 1 | 4 | — | 1 | 6 | — | 4 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 99 | 271 | 0 | 99 | 271 | 0 | 99 | 83 | 0 | 0 | 273 | 0 | 99 | 271 | 0 | 99 | 321 | 0 | 99 | 271 |
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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