
Surf Forecasts:
Montoya surf forecast from 10 Aug 2026:
- Most powerful swell: Monday 10 Aug, 3PM (local time) - 6ft (1.9m), 12s period, S swell with 963 kJ wave energy.
Best Forecast Surf Conditions for Montoya this week:
The most powerful waves expected at Montoya in the next 16 days are 1.9m 12s and forecast to arrive on Monday (Aug 10) at 3PM. 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 2s period and expected on Monday (Aug 17) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Mon 10th Aug) | 6ft (1.9m) 12s |
Table - best surf conditions forecast for Montoya over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve had a good look at the 16-day run for Montoya (Montoya). Let me tell you, this one’s a bit of a mixed bag—there’s some decent swell coming, but we’ve got to wade through a lot of slop to get to it.
The pattern starts off pretty grim. From Monday the 10th through to Saturday the 15th, it’s a write-off. The swell is there—south to south-southeast around 3 ft to 6 ft—but the wind is just cruel. Cross-onshore, choppy, lumpy, and the combined wave energy sits between 136 and 963 (moderate to strong), but it’s all messy. The Monday morning session on the 10th has a 6 ft S swell, but with a cross-on wind at 16 mph, it’s just poor. Not worth paddling out for.
We get a bit of a reprieve on the 17th of August (Monday) and 18th (Tuesday) morning. The swell is still up—7 ft S on the 17th and 6 ft S on the 18th—but the wind swings to a cross-off or cross-offshore, and the combined energy is strong (472 to 595). The 18th Tuesday morning and afternoon sessions are “clean” with the cross-off breeze. That’s the best of the early run, but it’s still a bit rowdy for beginners—swell over 5 ft—and the period is short (8 seconds), so it’s going to be a bit sectiony. Still, it’s better than the trash before it.
Now, the standout window is Wednesday the 19th and Thursday the 20th. Wednesday morning brings a 4 ft SSE swell with a 10-second period, light N wind at 6 mph, cross-off, and the combined energy is moderate (328). That’s clean, glassy, and the water temperature is 53°F, which is a touch warmer than normal for this time of year, so it’s not a teeth-chatterer. By Wednesday afternoon, the swell drops to 4 ft, but with a light offshore WNW wind, it’s going to be smooth and fun. Thursday the 20th morning keeps it going with a 3 ft SSE swell, 12-second period, and a cross-off breeze—clean, tidy, and the combined energy (348) is still moderate. The longer period (12 seconds) means the waves will have a bit more shape. This is the pick of the month—small but clean, and with the offshore or glassy conditions, it’s a true standout for a quiet session.
After that, it fades. From Friday the 21st onward, the swell drops to 3 ft or less, the period goes short, and the wind gets messy again. The 22nd and 23rd are tiny—2 ft to 3 ft, with combined energy as low as 44—and the wind is cross or cross-on. There’s a small spike on the 24th (Monday) afternoon with a 4 ft SSE swell and a 6-second period, but the combined energy is only 174, and it’s cross-shore. Not worth a paddle. The 25th (Tuesday) has a 5 ft to 6 ft south swell, but the wind is howling at 28 mph, cross-off, and the combined energy is moderate (261-278). That’s a big wind, so it’s expert-only and more of a windsurf or kite setup than a paddle—too sketchy for most.
So, the long story short: the first week is a dud, with a brief clean-up on the 17th and 18th, but the real gem is Wednesday the 19th and Thursday the 20th for a clean, small-wave session. The rest is flat or blown out. Keep an eye on the forecasts, because it tends not to stay this poor for long, but right now, that mid-week window is your best bet.
Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Wed afternoon. Mild temperatures (max 9°C on Mon morning, min 6°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sat afternoon, min 10°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | S 8 | S 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 13 | SSE 14 | S 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | E 7 | E 5 | E 5 | E 6 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||||
374 | 963 | 953 | 767 | 660 | 553 | 486 | 732 | 694 | 324 | 569 | 467 | 325 | 194 | 131 | 107 | 76 | 70 | 95 | 165 | 130 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-off |
High Tide | 5:17PM0.38m | 6:04AM0.20m | 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 | |||||||
Low Tide | 1:48AM0.03m | 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 | ||||||
7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | |
— | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | — | — | — | — | — | 3 | 2 | — | 2 | 4 | — | — | 1 | 1 | — | — | — | — | — |
Temp °C | 9 | 7 | 7 | 7 | 7 | 7 | 9 | 9 | 9 | 11 | 10 | 11 | 12 | 13 | 13 | 14 | 15 | 15 | 16 | 16 | 13 |
Feels °C | 3 | 1 | 3 | 3 | 3 | 3 | 5 | 5 | 4 | 7 | 6 | 7 | 7 | 8 | 9 | 11 | 13 | 13 | 17 | 16 | 11 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | — | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 13 | SSE 14 | S 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | E 8 |
167 | — | 953 | 767 | 660 | 553 | 486 | 732 | 694 | 324 | 569 | 467 | 325 | 194 | 131 | 90 | 65 | 64 | 27 | 26 | 130 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | E 10 | E 9 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | S 10 | — | — | — | SSE 8 |
— | — | — | — | — | 2 | 2 | 1 | 1 | 1 | 1 | — | — | — | — | — | 30 | — | — | — | 13 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 12 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | S 8 | S 12 | — | — | — | — | — | — | SE 4 | SE 5 | — | ESE 5 | E 6 | E 6 | E 7 | E 7 | E 5 | E 5 | E 6 | E 8 | — |
374 | 963 | — | — | — | — | — | — | 26 | 30 | — | 75 | 125 | 148 | 107 | 107 | 76 | 70 | 95 | 165 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 248 | 236 | 156 | 14 | 109 | 1 | 1 | 534 | 534 | 109 | 149 | 431 | 109 | 109 | 14 | 14 | 109 | 109 | 1 | 68 | 27 |
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.











