Surf Forecasts:
Barron Rivermouth surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11PM (local time) - 3ft (0.9m), 14s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 11PM (local time) - 3ft (0.9m), 17s period, SW swell with 505 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 11PM (local time) - 3ft (0.9m), 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 (Sep 06) at 11PM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.9m and 11s. 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 0.9m 17s and forecast to arrive on Wednesday (Sep 09) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Wednesday (Sep 09) at 8PM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 6th Sep) | 3ft (0.9m) 14s |
| Best Surf | 11PM (Sun 6th Sep) | 3ft (0.9m) 14s |
| Most Powerful | 11PM (Wed 9th Sep) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Barron Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's coming down the line for this spot.
We're looking at a pretty drawn-out run of small, workable surf at Barron Rivermouth. The water is running much warmer than normal for this time of year, sitting at 90° with a 5° anomaly, so you can leave the thick wetsuit at home. The overall energy is moderate, kicking off with a combined swell energy of 621, but the waves themselves are on the small side.
The best clean window we've got arrives early on Monday morning, the 7th of September. We've got a 3 ft SW groundswell, with a solid 14-second period, and the wind is a light cross-offshore breeze. It's small, but it'll be clean with some shape, and the combined energy sits at 513. It's not a standout by any stretch, but it's the pick of the first week.
Later in the week, Thursday morning the 10th of September, things get glassy. The wind goes dead calm, with a 3 ft SW swell running on a 16-second period, and the combined energy is 468. It's tiny, but if you're after a longboard or a funboard, that glassy surface will be smooth as silk. You'll want to be careful though, as this is a point/river mouth setup, and that long-period groundswell can sometimes make the take-off a bit straight.
The second week is a real grind. The swell drops and picks up, but never really gets going. There's a couple of mornings worth noting: Tuesday the 15th of September has a 2 ft SW swell with glassy conditions again, and combined energy of 300, and Monday the 21st of September has a 3 ft SW swell with a 17-second period and light offshore winds, energy at 384. Both are marginal, but if you're desperate, they're the only windows.
Honestly, for the whole 16 days, you're not getting any size. The biggest swell is barely 3 ft and that morning was a write-off with cross-on wind. The standouts are the clean, glassy mornings, but they're for the small-wave crew. Don't expect to get the shortboard out much.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Warm (max 31°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Warm (max 30°C on Wed afternoon, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 14 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 404 | 410 | 293 | 289 | 281 | 173 | 171 | 138 | 165 | 163 | 350 | 505 | 427 | 421 | 416 | 322 | 309 | 251 | 211 | 160 | 144 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross-off | on | off | cross-on | cross-on | off | on | cross-on | cross-on | glassy | cross-on | glassy | cross | on | off | cross-on | on | glassy |
High Tide | 5:07PM1.47m | 7:38AM1.38m | 6:10PM1.60m | 7:52AM1.47m | 6:57PM1.70m | 8:10AM1.54m | 7:38PM1.75m | 8:29AM1.61m | 8:15PM1.74m | 8:48AM1.65m | 8:50PM1.67m | 9:06AM1.68m | 9:23PM1.57m | ||||||||
Low Tide | 11:55AM1.10m | 00:38AM0.19m | 12:36PM0.93m | 1:12AM0.12m | 1:11PM0.76m | 1:43AM0.10m | 1:44PM0.61m | 2:11AM0.14m | 2:16PM0.48m | 2:36AM0.23m | 2:47PM0.39m | 2:58AM0.34m | 3:17PM0.35m | 3:16AM0.47m | |||||||
 | |  |  | | |  | | | | |  |  | | | | |  | | | | |
 | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — | — | 6:12 | — | — | 6:10 | — |
mm | — | — | 7 | 2 | — | 4 | — | — | 1 | — | — | 3 | — | — | 3 | — | — | — | — | — | 1 |
Temp °C | 30 | 31 | 29 | 28 | 29 | 29 | 29 | 30 | 29 | 29 | 30 | 27 | 27 | 29 | 28 | 29 | 30 | 28 | 29 | 30 | 29 |
Feels °C | 34 | 34 | 33 | 31 | 32 | 34 | 33 | 32 | 32 | 32 | 32 | 30 | 31 | 32 | 31 | 33 | 33 | 32 | 33 | 33 | 34 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 15 | WSW 11 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 |
| kJ | 404 | 410 | 198 | 289 | 281 | 173 | 171 | 138 | 124 | 163 | 350 | 505 | 427 | 421 | 416 | 322 | 309 | 251 | 211 | 160 | 144 |
Swell 2 Height (m) Direction Period (s) | WSW 10 | WSW 10 | SW 14 | WSW 10 | WSW 10 | WSW 10 | W 10 | W 10 | SW 16 | W 9 | W 9 | SW 12 | SW 11 | SSW 11 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 |
| kJ | 202 | 191 | 293 | 133 | 98 | 100 | 67 | 47 | 165 | 39 | 39 | 50 | 30 | 44 | 13 | 28 | 26 | 22 | 14 | 13 | 13 |
Swell 3 Height (m) Direction Period (s) | SW 20 | SW 20 | SW 20 | SW 19 | W 11 | SW 18 | SW 18 | SW 17 | W 9 | SW 12 | SW 12 | WSW 8 | W 8 | W 8 | SW 10 | SW 19 | SW 19 | SW 20 | SW 18 | SW 18 | WSW 21 |
| kJ | 15 | 16 | 15 | 91 | 21 | 80 | 80 | 106 | 40 | 52 | 50 | 22 | 11 | 11 | 17 | 15 | 15 | 15 | 49 | 49 | 44 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 3 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 99 | 273 | 0 | 0 | 271 | 0 | 14 | 271 | 0 | 99 | 271 | 29 | 0 | 271 | 0 | 38 | 105 | 0 | 99 | 271 | 0 |
Best forecast wave conditions in Sinaloa | |||||||||||||||||||||
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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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