
Surf Forecasts:
Montoya surf forecast from 11 Aug 2026:
- Best quality surf: Sunday 16 Aug, 3PM (local time) - 4ft (1.2m), 8s period, E swell with glassy winds.
- Most powerful swell: Wednesday 12 Aug, 3PM (local time) - 5ft (1.5m), 13s period, SSE swell with 755 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 12PM (local time) - 4ft (1.2m), 7s period with E swell.
Best Forecast Surf Conditions for Montoya this week:
The surf forecast for Montoya over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 12PM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.4m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Montoya in the next 16 days are 1.5m 13s and forecast to arrive on Wednesday (Aug 12) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 9s period and expected on Tuesday (Aug 18) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 16th Aug) | 4ft (1.2m) 7s |
| Best Surf | 3PM (Sun 16th Aug) | 4ft (1.2m) 8s |
| Most Powerful | 3PM (Wed 12th Aug) | 5ft (1.5m) 13s |
Table - best surf conditions forecast for Montoya over the next 16 days.
The Lowdown
Alright, listen up. Rusty here, and I’ve been staring at the charts for your neck of the woods. I gotta be straight with you—this forecast is a long, slow burn. We’re looking at a whole lot of nothing for the next couple of weeks before a big, late-summer pulse finally shows up right at the end of the window. So, buckle up for a quiet stretch.
First up, the water temp at Montoya is sitting at 12°, which is about a degree warmer than usual for this time of year. Nothing crazy, but it’s a nice little touch for your morning session.
Now, we’ve got a pretty grim run of surf from now until basically the 24th of August. The wind is a problem, almost constantly onshore or cross-onshore, and the swell is either small, short period, or blown out. There are a few days where the wave energy is present, like the morning of the 11th with a moderate 767 energy reading and a 6ft SSE swell, but the onshore SE wind at 10 km/h just kills it. The scores tell the whole story – it’s a write-off for days. We’re talking about a solid two-week gap with no real recommendations, just borderline conditions or straight-up poor surf. If you’re a kiter, you might get a look on the 20th when the wind cranks from the West at 31 mph, but for a paddle surfer, it’s a no-go.
Then, finally, on the morning of the 25th of August, things get interesting. The whole pattern shifts. We’ve got a solid 6ft swell coming from the SSE, but here’s the kicker—the period is 15 seconds. That’s a very long period groundswell, and the combined energy is a massive 1346, which is a huge jump in power. This is the kind of energy that gets you excited. The caveat? The wind is a light cross-onshore from the S at 10 km/h, which is manageable, but with such a long period, this swell will be breaking straight and fast. Montoya is a beach and point setup, so you’ll want to hunt for the point or a river mouth to get the best out of it. It’ll be clean enough with that light breeze, but it’s not going to be a glassy, perfect day. This is a promising, late-season chance, but it’s a long way off, so don’t hold your breath just yet.
So, here’s the deal: the next two weeks are a flat, windy mess. Your only real standout is that Tuesday morning, the 25th of August, at Montoya. It’s a big, powerful, long-period groundswell, but you’ll need to pick your spot carefully. Not a beginner’s day with that size and length of period.
Stay patient, lads.
Rusty
Short Range ForecastLight rain (total 9mm), mostly falling on Wed afternoon. Very mild (max 12°C on Thu afternoon, min 6°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 18°C on Sun afternoon, min 12°C on Fri morning). Winds decreasing (fresh winds from the ENE on Sat morning, calm by Sun afternoon). | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 13 | SSE 14 | S 12 | SSE 12 | SSE 13 | SSE 12 | S 11 | SSE 10 | E 6 | E 6 | E 6 | E 6 | E 8 | ESE 9 | E 9 | E 10 | S 7 |
Wave Graph | |||||||||||||||||||||
767 | 671 | 553 | 494 | 755 | 580 | 319 | 446 | 700 | 349 | 242 | 133 | 123 | 151 | 125 | 141 | 186 | 197 | 173 | 171 | 270 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | glassy | cross | cross-on | cross-on | cross-on |
High Tide | 11:50AM0.14m | 6:21PM0.38m | 6:54AM0.23m | 12:07PM0.13m | 7:20PM0.36m | 7:43AM0.26m | 8:16PM0.34m | 8:32AM0.29m | 9:10PM0.31m | 9:20AM0.31m | 10:02PM0.28m | 10:07AM0.32m | 10:53PM0.25m | 3:18AM0.20m | 11:44PM0.23m | ||||||
Low Tide | 9:38AM0.12m | 1:13PM0.13m | 2:46AM0.04m | 10:49AM0.12m | 2:33PM0.10m | 3:39AM0.06m | 3:40PM0.07m | 4:28AM0.08m | 4:40PM0.04m | 5:15AM0.09m | 5:35PM0.02m | 1:35AM0.20m | 6:00AM0.11m | 6:28PM0.02m | 6:44AM0.12m | 7:19PM0.02m | |||||
7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:16 | — | — | |
— | 6:04 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | |
mm | — | — | — | — | 7 | 2 | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — |
Temp °C | 7 | 7 | 8 | 9 | 9 | 8 | 11 | 12 | 12 | 13 | 14 | 13 | 13 | 13 | 14 | 16 | 18 | 12 | 10 | 10 | 10 |
Feels °C | 3 | 3 | 5 | 5 | 5 | 3 | 7 | 8 | 9 | 7 | 9 | 8 | 8 | 8 | 13 | 17 | 19 | 11 | 5 | 4 | 6 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 13 | SSE 14 | S 12 | SSE 12 | SSE 13 | SSE 12 | S 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | E 6 | E 8 | ESE 9 | E 9 | E 10 | E 10 |
767 | 671 | 553 | 494 | 755 | 580 | 319 | 446 | 700 | 349 | 242 | 133 | 69 | 65 | 46 | 141 | 186 | 197 | 173 | 171 | 92 | |
Swell 2 Height (m) Direction Period (s) | — | — | E 10 | E 9 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | SSE 9 | — | SSE 9 | SSE 9 | S 8 | SSE 7 | SE 7 | — |
— | — | 2 | 2 | 1 | 1 | 1 | 1 | — | — | — | — | — | 31 | — | 26 | 25 | 12 | 32 | 16 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SE 5 | SE 5 | — | — | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | — | — | — | SW 3 | SSW 5 | S 7 |
— | — | — | — | — | 37 | 32 | — | — | 50 | 72 | 99 | 123 | 151 | 125 | — | — | — | 3 | 37 | 270 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 236 | 109 | 1 | 152 | 534 | 534 | 149 | 902 | 1 | 109 | 149 | 109 | 152 | 431 | 560 | 1 | 0 | 10 | 807 | 534 | 428 |
Best forecast wave conditions in Uruguay - South | |||||||||||||||||||||
Best forecast wave conditions in Uruguay | |||||||||||||||||||||
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Information about the Montoya Surf forecast
The above surf forecast table for Montoya provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Montoya can be found by selecting the local surf guide option on the grey menu. Our Montoya 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 (Montoya) 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 Montoya 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 Uruguay - South? If you are looking for accommodation near Montoya, camping, hotels and holiday cottages in Uruguay - South, consider staying in Maldonado which is 12 km (7 miles) away. Other places in and around Uruguay - South where you can find information about places to rent, and car hire include San Carlos which is 15 km (9 miles) away, Rocha, La Paloma and Minas.











