
Surf Forecasts:
La Barra surf forecast from 9 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 9PM (local time) - 2.5ft (0.8m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 3AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 3AM (local time) - 2.5ft (0.7m), 16s period with SSW swell.
Best Forecast Surf Conditions for La Barra this week:
The surf forecast for La Barra over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 09) at 3AM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.8m and 12s. Another secondary swell of 0.7m and 7s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at La Barra in the next 16 days are 1.2m 17s and forecast to arrive on Thursday (Sep 10) at 3AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 9th Sep) | 2.5ft (0.7m) 16s |
| Best Surf | 9PM (Wed 9th Sep) | 2.5ft (0.8m) 17s |
| Most Powerful | 3AM (Thu 10th Sep) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for La Barra over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a solid run of surf shaping up at La Barra, a river/jetty set-up that likes a good SSW swell. The water is sitting at 87°F which is a touch warmer than normal, so you’ll be comfortable out there.
The week kicks off proper on Wednesday, September 9th with a clean morning. We’re looking at a 3ft SSW groundswell with a period of 16 seconds, and the wind is dead calm – glassy as can be. The combined swell energy is moderate at 453. That’s a beautiful window for a morning session, even if the surf is on the smaller side. The afternoon will see the wind turn onshore and chop things up, so make it a dawn patrol.
Thursday, September 10th is the real standout. The morning brings a clean 4ft SSW swell with a 17-second period and glassy conditions. The energy jumps to 828. That’s a great combo of size and length; the longer period will make for some proper lines peeling off the river mouth. This is the best on offer for the whole outlook. The afternoon gets choppy again, so don't sleep in.
Friday, September 11th and Saturday, September 12th follow a similar pattern. Mornings are glassy with clean 3ft and 3ft SSW swells, offering good, clean waves. The energy is moderate (564 and 336), but the quality is there for a fun paddle. Afternoons are a washout with the onshore breeze.
Sunday, September 13th is another glassy morning, but the swell has dropped to 2ft. Still, with a 13-second period and calm winds, it’s a good chance for a longboard or a fun fish. The energy is down to 209.
We get a bit of a lull through Monday, but Tuesday, September 15th morning has a fresh pulse of 3ft SSW swell at 18 seconds with glassy winds. The energy is back up to 634. That’s a sneaky-good session before the onshore wind messes it up again.
Looking further out, the Wednesday, September 16th morning looks promising with a 4ft, 16-second SSW groundswell and zero wind. The energy is 852. That’s another one to circle on the calendar, but it’s a week and a half away, so keep an eye on the forecasts.
The following week from around the 19th onward gets messy. The swell sticks around at 2ft to 3ft, but the wind turns onshore and stays there, and we start seeing thunderstorm risks. The quality drops off hard. It’s not a total write-off, but the windows are tight and the conditions are marginal.
Honestly, your best bets are the mornings of Thursday the 10th, Tuesday the 15th, and Wednesday the 16th. Those are the cleanest, most energetic windows. The crowds can show up sometimes at La Barra, but with the river mouth offering plenty of room, you can usually find your own peak.
Stay stoked,
Rusty
Short Range ForecastLight rain (total 9mm), mostly falling on Tue night. Warm (max 31°C on Thu morning, min 26°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 25mm), heaviest during Sun night. Warm (max 31°C on Fri afternoon, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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) | SSW 13 | SSW 12 | SSW 16 | SSW 16 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SE 9 | SSE 9 | SSW 18 | SSW 18 |
Wave Graph | ||||||||||||||||||||
215 | 199 | 295 | 232 | 475 | 798 | 674 | 666 | 512 | 387 | 325 | 264 | 261 | 161 | 154 | 116 | 212 | 137 | 204 | 356 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross-on | off | glassy | cross-on | cross-off | glassy | cross-on | glassy | glassy | cross-on | cross-off | glassy | cross-on | cross-on | cross-off | cross | cross-off |
High Tide | 00:32AM1.66m | 12:56PM1.82m | 1:30AM1.80m | 1:52PM1.86m | 2:21AM1.92m | 2:42PM1.89m | 3:07AM2.01m | 3:28PM1.89m | 3:50AM2.06m | 4:11PM1.87m | 4:31AM2.05m | 4:52PM1.81m | ||||||||
Low Tide | 6:21PM0.30m | 6:41AM0.32m | 7:17PM0.22m | 7:42AM0.23m | 8:07PM0.15m | 8:35AM0.16m | 8:53PM0.10m | 9:23AM0.10m | 9:36PM0.09m | 10:08AM0.09m | 10:17PM0.10m | 10:50AM0.11m | 10:56PM0.15m | |||||||
— | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | |
6:08 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | 8 | — | — | — | — | — | 1 | — | — | 5 | — | — | 3 | — | — | 17 | — | 2 | 6 |
Temp °C | 30 | 26 | 30 | 30 | 28 | 31 | 31 | 28 | 31 | 31 | 28 | 31 | 31 | 28 | 31 | 31 | 28 | 29 | 30 | 26 |
Feels °C | 32 | 27 | 32 | 31 | 32 | 33 | 32 | 31 | 33 | 33 | 32 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 16 | SSW 12 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSE 9 | SSE 8 | SSW 18 |
215 | 199 | 295 | 136 | 475 | 798 | 674 | 666 | 512 | 387 | 325 | 264 | 261 | 161 | 154 | 116 | 113 | 121 | 75 | 356 | |
Swell 2 Height (m) Direction Period (s) | SSW 17 | SE 7 | SSW 12 | SSW 16 | SSW 13 | SE 6 | SE 6 | SSE 7 | SSE 10 | S 10 | S 10 | S 9 | SSE 9 | S 10 | S 9 | S 9 | SSW 19 | SW 12 | SSW 18 | S 8 |
168 | 49 | 131 | 232 | 140 | 13 | 5 | 31 | 35 | 51 | 49 | 44 | 48 | 46 | 41 | 55 | 212 | 74 | 204 | 68 | |
Swell 3 Height (m) Direction Period (s) | SSE 6 | SSW 16 | SSE 6 | SSE 7 | SE 7 | W 10 | S 8 | SSE 11 | SW 8 | SSW 8 | SSW 8 | SSW 8 | SW 8 | SW 8 | SSW 8 | SSW 20 | SW 16 | SSW 19 | SW 12 | SE 7 |
17 | 155 | 27 | 33 | 35 | 17 | 10 | 23 | 17 | 26 | 26 | 28 | 18 | 18 | 14 | 75 | 41 | 137 | 72 | 29 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 9 | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 178 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 552 | 0 | 0 | 392 | 0 | 0 | 552 | 0 | 0 | 498 | 0 | 0 | 470 | 0 | 0 | 470 | 41 | 0 | 295 | 0 |
Best forecast wave conditions in Guatemala - Pacific Coast | ||||||||||||||||||||
Best forecast wave conditions in Guatemala | ||||||||||||||||||||
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Information about the La Barra Surf forecast
The above surf forecast table for La Barra provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at La Barra can be found by selecting the local surf guide option on the grey menu. Our La Barra 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 (La Barra) 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 La Barra 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.
La Barra is 9 km (6 miles) from San Jose. If you plan a holiday in Guatemala - Pacific Coast, look for hotels and other accommodation in San Jose. San Jose has rooms for a wide range of budgets as well as car hire and transport links.










