Surf Forecasts:
Barron Rivermouth surf forecast from 31 Aug 2026:
- Best quality surf: Thursday 3 Sep, 8AM (local time) - 5.5ft (1.7m), 11s period, SW swell with glassy winds.
- Most powerful swell: Friday 4 Sep, 2PM (local time) - 6ft (1.8m), 12s period, SW swell with 948 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 11PM (local time) - 2.5ft (0.7m), 13s 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 Monday (Aug 31) at 11PM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.8m and 10s. 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 1.8m 12s and forecast to arrive on Friday (Sep 04) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Aug 31) at 8AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 31st Aug) | 2.5ft (0.7m) 13s |
| Best Surf | 8AM (Thu 3rd Sep) | 5.5ft (1.7m) 11s |
| Most Powerful | 2PM (Fri 4th Sep) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Barron Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
We’ve got one spot on the radar for the next couple of weeks: Barron Rivermouth. It’s a point and river setup, exposed to the south-west swell. The wait for anything decent is a bit of a grind, but there is a definite standout window if you’re patient.
The first couple of days are a write-off. Monday the 31st and Tuesday the 1st offer small, weak swell with poor conditions. There’s a bit of energy on the morning of Tuesday, but the swell is tiny at 2ft, and the wind is glassy. It’s not enough to get excited about. Wednesday the 2nd stays small and crummy.
Then, Thursday the 3rd of September morning is where it’s at. The swell bumps up to 6ft out of the south-west, with a period of 11 seconds. The magic is in the wind – it’s glassy, dead calm. The water is sitting about average for the time of year, so no surprises there. The combined energy gets up to a solid 1075 (moderate wave energy), and the conditions are described as excellent for experienced surfers. It’s a bit of size for a river mouth, so if you’re not comfortable on a 6ft wave, maybe give it a miss. But for the crew that knows the line, this is the pick of the run.
The afternoon of the 3rd gets messy with onshore wind, and Friday the 4th has some solid energy (1564) but the wind turns cross-on, making it choppy. Saturday morning the 5th still has some leftovers, but the wind is onshore again.
After that, things drop off. The second week is a real mixed bag of marginal conditions. There’s a brief moment on Thursday the 10th morning with a glassy 3ft, but it’s small. The real eye-catcher is the last weekend of the run. On Friday the 11th of September, the swell goes nuts – 8ft in the morning, 12ft in the afternoon, with combined energy over 5000 (very strong). That is serious, solid groundswell, but the wind is cross-on and the periods are moderate. This is a big wave only session for the experts, and the river mouth might get a bit unruly at that size. The Saturday morning (12th) holds 12ft, but again, the wind is onshore.
So, the clear standout is Thursday morning the 3rd of September. Don’t sleep on the morning of the 10th for a smaller, clean session if you’re just trying to get wet. The big pulse on the 11th and 12th is for the heavy hitters only, and the wind is a letdown.
Keep your eyes peeled, forecasts can change. But for now, Thursday the 3rd is the one.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon night. Warm (max 30°C on Mon afternoon, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Thu night. Warm (max 30°C on Thu afternoon, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 11 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 11 | SSW 12 | SW 11 | SW 11 | SW 11 | SW 17 | SW 12 | WSW 12 | SW 16 | SW 16 | WSW 12 | WSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 285 | 253 | 187 | 142 | 104 | 111 | 320 | 372 | 545 | 662 | 663 | 734 | 711 | 783 | 822 | 710 | 627 | 560 | 634 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | on | cross-off | glassy | cross-on | off | on | on | cross-off | glassy | on | cross-off | on | cross-on | cross-off | on | cross | cross-off |
High Tide | 9:47PM1.52m | 9:58AM1.66m | 10:24PM1.37m | 10:21AM1.65m | 11:07PM1.19m | 10:48AM1.61m | 00:14AM0.99m | 11:20AM1.54m | 12:15PM1.43m | 3:12PM1.37m | |||||||||
Low Tide | 3:44AM0.46m | 4:23PM0.40m | 4:03AM0.59m | 5:06PM0.44m | 4:18AM0.73m | 6:04PM0.51m | 4:14AM0.86m | 7:50PM0.58m | 10:47PM0.49m | 11:55PM0.33m | |||||||||
 |  |  |  | | |  | | | | | | | | | | |  | | |
 | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — |
mm | — | — | — | 8 | — | — | 2 | — | — | 3 | — | — | 4 | — | — | 3 | — | 4 | 1 |
Temp °C | 29 | 29 | 30 | 29 | 29 | 30 | 28 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 26 |
Feels °C | 34 | 32 | 33 | 33 | 33 | 32 | 31 | 33 | 32 | 34 | 33 | 32 | 34 | 33 | 32 | 32 | 34 | 33 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 11 | SW 9 | SW 9 | SW 9 | SSW 12 | SSW 11 | SSW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 12 | WSW 12 |
| kJ | 285 | 253 | 187 | 106 | 81 | 73 | 320 | 372 | 545 | 662 | 663 | 734 | 533 | 781 | 822 | 513 | 458 | 560 | 634 |
Swell 2 Height (m) Direction Period (s) | SW 10 | SW 9 | SW 13 | SW 13 | SW 13 | SW 13 | SW 17 | SW 16 | SW 16 | SW 16 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 |
| kJ | 110 | 81 | 176 | 142 | 104 | 104 | 148 | 165 | 211 | 159 | 379 | 510 | 711 | 783 | 581 | 710 | 627 | 462 | 415 |
Swell 3 Height (m) Direction Period (s) | — | WSW 19 | WSW 19 | SW 18 | SW 18 | SW 18 | WSW 9 | WSW 10 | WSW 10 | SW 19 | SW 15 | — | WSW 13 | — | — | — | SW 11 | — | — |
| kJ | — | 36 | 36 | 52 | 80 | 111 | 29 | 36 | 33 | 131 | 33 | — | 145 | — | — | — | 5 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 3 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 49 | 271 | 0 | 0 | 271 | 0 | 99 | 717 | 0 | 0 | 273 | 0 | 99 | 271 | 0 | 38 | 25 | 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.
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