Surf Forecasts:
Montoya surf forecast from 23 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 3AM (local time) - 4.5ft (1.4m), 14s period, SE swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 12PM (local time) - 8ft (2.5m), 13s period, S swell with 2,560 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 3AM (local time) - 4.5ft (1.4m), 11s period with SSE 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 Tuesday (Aug 25) at 3AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.2m and 15s. 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 2.5m 13s and forecast to arrive on Sunday (Aug 23) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Thursday (Aug 27) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 25th Aug) | 4.5ft (1.4m) 11s |
| Best Surf | 3AM (Wed 26th Aug) | 4.5ft (1.4m) 14s |
| Most Powerful | 12PM (Sun 23rd Aug) | 8ft (2.5m) 13s |
Table - best surf conditions forecast for Montoya over the next 16 days.
The Lowdown
Alright, let's break down what's happening at Montoya. We're looking at a patchy run of surf with a proper standout window for the experienced crew a fair way off.
So, right now, it's a bit of a write-off. The start of this period is a mess. We've got a solid 8ft southerly swell rolling in on Sunday the 23rd, but that's coupled with a fresh cross-shore wind from the SSW at 19 mph. The combined energy is a very strong 2209, so there's plenty of push, but it's just lumpy, cross-chop. Not what we're after. That continues into Monday and Tuesday with dropping sizes and poor wind directions, leaving us with marginal, choppy conditions. Honestly, it's a bit grim to kick things off.
We get a tiny glimpse of hope on the morning of Thursday the 27th. The swell drops right down to 3ft from the SE with a period of 12 seconds, combined energy of 220, and a light cross-offshore breeze from the NNE at 6 mph. The notes say "clean" and "expect good surf conditions," which I can get behind for a longboard or a quiet session, but it's small. Then it's back to tiny, poor surf for the rest of August and into the very start of September. There's a big gap of very poor, tiny surf from Friday the 28th all the way through Monday the 1st of September.
Now, here’s where it gets interesting. Tuesday the 1st of September clears up with a 7ft easterly groundswell, period 11 seconds, and light offshore winds from the NW at 9 mph. The combined energy jumps to 1104, and the notes say "excellent surf conditions for experienced surfers." This is a proper alert for the experienced crew. That 7ft on a point break with offshore winds is where Montoya will really shine. The morning of Wednesday the 2nd of September keeps the quality high with a 7ft SW swell, but a short period of 7 seconds, and a clean light cross-offshore breeze. Then it goes glassy on Wednesday afternoon with an 8ft SW swell and light easterly winds. That glassy setup is a rare treat. Thursday the 3rd of September morning also looks solid with 6ft from the SSW and offshore NNW winds at 9 mph, giving us gentle offshore and clean conditions (combined energy 697). That whole first week of September is the clear winner.
For the real standout, I'm pointing you to the morning of Tuesday the 1st of September. That 7ft easterly swell with the clean offshore wind makes for an excellent day for the experienced surfer. After that, the swell fades out again through the end of the forecast window.
Because the water temp is normal for the time of year, you don't need a thicker suit than usual.
This is Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 12°C on Tue afternoon, min 5°C on Mon night). Winds decreasing (fresh winds from the SW on Sat night, light winds from the SSE by Mon morning). | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Thu night. Very mild (max 18°C on Wed afternoon, min 8°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 11 | S 13 | S 13 | SSE 14 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SE 15 | SSE 14 | SE 14 | SE 14 | SE 13 | SE 12 | SE 12 | SSE 11 | E 10 | SE 10 | ESE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 959 | 2209 | 1736 | 1690 | 905 | 658 | 447 | 308 | 574 | 921 | 701 | 595 | 342 | 220 | 144 | 81 | 73 | 25 | 31 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-on | cross-on | on | cross | cross | cross | cross-off | cross | cross | cross | cross-off | cross-on | on | on | on | cross-on |
High Tide | 5:58AM0.18m | 4:07PM0.28m | 6:10AM0.18m | 5:03PM0.28m | 6:33AM0.19m | 5:56PM0.28m | 6:56AM0.20m | 6:44PM0.28m | 7:20AM0.21m | 7:29PM0.28m | 7:48AM0.23m | 8:12PM0.28m | |||||||
Low Tide | 11:32PM0.07m | 6:50AM0.18m | 00:27AM0.08m | 8:42AM0.18m | 1:21AM0.08m | 9:42AM0.17m | 2:10AM0.09m | 1:43PM0.16m | 2:54AM0.10m | 2:44PM0.14m | 3:35AM0.11m | 3:36PM0.11m | |||||||
 |  |  |  | |  |  | | | | | | |  |  |  | | | | |
 | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — |
 | 6:13 | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 10 | — | — | — |
Temp °C | 10 | 8 | 8 | 8 | 7 | 7 | 6 | 9 | 12 | 9 | 15 | 18 | 14 | 17 | 16 | 12 | 13 | 13 | 11 |
Feels °C | 2 | 1 | 2 | 3 | 3 | 4 | 2 | 4 | 7 | 5 | 12 | 16 | 12 | 18 | 15 | 9 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | — | — | S 13 | SSE 14 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 14 | SE 14 | SE 14 | SE 13 | SE 12 | SE 12 | E 8 | E 10 | ESE 5 | ESE 6 |
| kJ | — | — | 1736 | 1690 | 905 | 658 | 447 | 308 | 275 | 921 | 701 | 595 | 342 | 220 | 144 | 65 | 73 | 17 | 31 |
Swell 2 Height (m) Direction Period (s) | — | — | SSE 16 | — | — | — | — | SE 15 | SE 15 | — | — | — | — | ENE 7 | E 8 | SSE 11 | SE 11 | E 10 | E 10 |
| kJ | — | — | 499 | — | — | — | — | 107 | 574 | — | — | — | — | 67 | 55 | 81 | 55 | 54 | 52 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 19 | — | — | — | — | — | — | — | — | — | SE 10 | SE 10 |
| kJ | — | — | — | — | — | — | — | 89 | — | — | — | — | — | — | — | — | — | 25 | 25 |
Wind waves Height (m) Direction Period (s) | SSW 11 | S 13 | — | — | — | — | — | — | — | ENE 4 | NE 4 | ENE 4 | ENE 6 | — | — | S 4 | SSE 4 | — | — |
| kJ | 959 | 2209 | — | — | — | — | — | — | — | 18 | 15 | 17 | 54 | — | — | 5 | 11 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 73 | 156 | 534 | 115 | 153 | 431 | 1 | 1 | 14 | 1 | 1 | 1 | 1 | 0 | 62 | 8 | 156 | 428 | 248 |
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.
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