Surf Forecasts:
Barron Rivermouth surf forecast from 24 Aug 2026:
- Best quality surf: Friday 28 Aug, 11PM (local time) - 3.5ft (1.1m), 17s period, SW swell with glassy winds.
- Most powerful swell: Sunday 30 Aug, 8PM (local time) - 4.5ft (1.4m), 14s period, SW swell with 780 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 5AM (local time) - 1.5ft (0.5m), 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 Monday (Aug 24) at 5AM. The primary swell is predicted to be 0.5m and 18s period with a secondary swell of 0.6m and 13s. Another secondary swell of 0.5m and 8s 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 1.4m 14s and forecast to arrive on Sunday (Aug 30) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 24th Aug) | 1.5ft (0.5m) 18s |
| Best Surf | 11PM (Fri 28th Aug) | 3.5ft (1.1m) 17s |
| Most Powerful | 8PM (Sun 30th Aug) | 4.5ft (1.4m) 14s |
Table - best surf conditions forecast for Barron Rivermouth over the next 16 days.
The Lowdown
Alright, let’s take a look at the forecast for Barron Rivermouth.
So, the story for Barron Rivermouth over the next couple of weeks is a bit of a slow burner. The first week or so is mostly a write-off for decent waves—just a long run of small, messy, cross-onshore slop. It’s a grind, to be honest.
The water is sitting at a warm 89°, which is much warmer than normal for the time of year. That’s a nice touch if you’re just having a paddle, but it doesn’t help the surf.
Things finally start to look up. The first real standout arrives on the morning of Wednesday, September 2nd. The forecast is showing a glassy morning with a slight air, and we’ve got a 4ft swell coming from the SSW. The wind going glassy is exactly what you want at a river mouth—it’ll be clean and smooth. The combined energy is moderate at 436, and with a period of 10 seconds, it’s a solid little groundswell. It’s not a monster, but after all that waiting, this will be the one that gets the heart pumping. Expect a few crew around though, as it’s sometimes crowded.
Then, hold on to your boards, because the weekend of Saturday, September 6th looks proper. The Sunday afternoon session has an 8ft swell from the SSW. That’s a big, powerful number. The combined energy is a massive 5467—very strong stuff. The wind is light, staying cross-onshore, so it’ll be a bit bumpy, but this is serious wave energy. This is expert territory; over 8ft is for the crew who know what they’re doing. The period is 14 seconds, so it’s a long-period groundswell. At a point/river setup like this, that’s going to produce some proper, drawn-out lines. It’s a standout, but only if you’ve got the skills. The morning before shows a 8ft swell, so the whole Saturday will be firing.
So to wrap it up: if you can wait, the real action kicks off on Wednesday, September 2nd, with glassy conditions on a 4ft SSW swell. The absolute peak of the window, however, is that big 8ft push on Sunday afternoon, September 6th. That’s the one to circle on the calendar, but be warned, it’s a serious wave.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Tue morning. Warm (max 30°C on Sun afternoon, min 26°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Thu night. Warm (max 31°C on Wed afternoon, min 27°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 18 | SW 12 | SSW 12 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | WSW 15 | SW 18 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 238 | 201 | 172 | 247 | 232 | 129 | 125 | 203 | 157 | 109 | 104 | 142 | 194 | 208 | 314 | 671 | 596 | 635 | 539 | 542 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | glassy | cross-on | on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | on | cross-off | cross-on | cross-on | cross-off |
High Tide | 5:49PM1.43m | 8:09AM1.30m | 6:30PM1.54m | 8:15AM1.36m | 7:05PM1.63m | 8:28AM1.42m | 7:37PM1.70m | 8:43AM1.49m | 8:09PM1.72m | 9:00AM1.55m | 8:40PM1.70m | 9:18AM1.60m | 9:13PM1.64m | |||||||
Low Tide | 1:15AM0.29m | 12:56PM0.96m | 1:37AM0.21m | 1:18PM0.85m | 1:58AM0.17m | 1:43PM0.73m | 2:20AM0.15m | 2:11PM0.63m | 2:41AM0.18m | 2:40PM0.53m | 3:03AM0.24m | 3:11PM0.46m | 3:24AM0.34m | |||||||
 |  |  | |  | | | | | | |  | | | | | | | | | |
 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — |
 | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — |
mm | — | — | 2 | — | 2 | 5 | 1 | 2 | — | — | — | — | — | 2 | — | — | — | — | — | — |
Temp °C | 30 | 29 | 30 | 30 | 29 | 30 | 29 | 28 | 30 | 31 | 29 | 31 | 31 | 30 | 30 | 31 | 30 | 30 | 30 | 29 |
Feels °C | 33 | 32 | 34 | 32 | 32 | 33 | 32 | 31 | 34 | 34 | 32 | 35 | 34 | 34 | 34 | 35 | 35 | 35 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 12 | SSW 12 | SW 8 | SW 8 | SW 9 | SW 9 | SW 8 | SW 8 | WSW 8 | SW 10 | WSW 9 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 |
| kJ | 238 | 140 | 172 | 247 | 67 | 53 | 104 | 91 | 82 | 50 | 37 | 100 | 54 | 208 | 314 | 671 | 596 | 635 | 539 | 542 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SSW 7 | SW 17 | SW 17 | WSW 11 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | WSW 15 | SW 14 | WSW 8 | SW 13 | SSW 10 | WSW 9 | SSW 10 | SSW 10 | SSW 9 |
| kJ | 113 | 201 | 30 | 222 | 232 | 78 | 125 | 203 | 157 | 109 | 104 | 142 | 102 | 37 | 85 | 9 | 32 | 75 | 109 | 71 |
Swell 3 Height (m) Direction Period (s) | S 9 | SSW 8 | SW 18 | — | SW 12 | SW 16 | WSW 11 | WSW 11 | SSW 11 | SSW 11 | SW 18 | SW 18 | SW 18 | SW 13 | SW 7 | WSW 10 | SSW 10 | WSW 8 | W 7 | WSW 8 |
| kJ | 27 | 22 | 150 | — | 112 | 129 | 24 | 24 | 12 | 12 | 87 | 111 | 194 | 44 | 27 | 10 | 18 | 28 | 1 | 13 |
Wind waves Height (m) Direction Period (s) | W 2 | — | — | W 3 | — | — | — | — | — | W 2 | — | — | W 3 | — | — | WSW 7 | — | — | WSW 8 | — |
| kJ | 1 | — | — | 1 | — | — | — | — | — | 1 | — | — | 2 | — | — | 20 | — | — | 26 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 277 | 25 | 99 | 271 | 0 | 222 | 271 | 0 | 99 | 271 | 0 | 99 | 271 | 0 | 99 | 302 | 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.
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