Surf Forecasts:
Montoya surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 12PM (local time) - 2.5ft (0.7m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 13 Sep, 6AM (local time) - 7ft (2.2m), 7s period, SSE swell with 526 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 12PM (local time) - 2.5ft (0.7m), 10s period with S 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 Monday (Sep 14) at 12PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.7m and 7s. 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 2.2m 7s and forecast to arrive on Sunday (Sep 13) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Friday (Sep 18) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 14th Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 12PM (Mon 14th Sep) | 2.5ft (0.7m) 10s |
| Most Powerful | 6AM (Sun 13th Sep) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Montoya over the next 16 days.
The Lowdown
Alright folks, Rusty here, breaking down the Montoya forecast for the next couple of weeks.
To be honest, it’s a slow start. You’re looking at a solid week of tiny, messy surf before anything really gets going. From now through the 14th, it’s pretty flat and not worth paddling out. Water temp is around 55°F, which is about 2°F warmer than normal for the season – so not freezing, but still a wetsuit day.
Monday the 14th brings the first real pulse of energy – a small 0.7m S swell with a 10-second period. Combined energy is weak at 171, but the wind is a light cross-shore (NE at 9 mph). It’s clean enough for a few small ones. Tuesday the 15th is cleaner with a WNW cross-offshore wind at 12 mph, but the swell drops to just 0.6m. You’re really hunting for anything.
The first proper standout is Thursday the 17th. Clean morning, NNE cross-offshore wind at 16 mph, with a 1.0m SSE swell and 10-second period. Combined energy is 217 – still moderate, but the conditions are primo. For Montoya, that’s the pick of the first week.
Sunday the 20th also shows some promise. Swell is 0.9m from the SSE, period 9 seconds, but the combined energy is 201. Gentle cross-shore wind from the ENE at 9 mph, so the surface is clean. Just small.
Now, the real action is in the second week. Hold out until Thursday the 24th. Thursday afternoon brings a 1.9m SSW swell with a 6-second period. Combined energy is 254, and the wind is clean from the W at 9 mph cross-offshore. That’s a fun, clean afternoon. But Friday the 25th morning is the big one – a 2.2m S swell, period 10 seconds, with combined energy hitting 999. That’s strong. The wind is a gentle cross-onshore from the S at 9 mph, a little bumpy, but at that size, Montoya will be a beast. That’s the standout. It’s big enough that only intermediates and experts should be in the water.
Then Saturday the 26th afternoon turns glassy. Wind goes dead calm (NW at 3 mph), swell is 1.1m SSE with a long 11-second period, and combined energy is 303. Perfect clean conditions. That’s your second standout – a gorgeous, glassy afternoon.
So, first week is a drought, but the second week (from the 24th) has two clear winners: Thursday the 24th afternoon and Saturday the 26th afternoon. Friday morning the 25th is the biggest, but a little bumpy.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Fri afternoon, min 8°C on Sat night). Winds decreasing (fresh winds from the SSE on Sat morning, light winds from the NNE by Mon morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Tue afternoon, min 8°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 9 | S 9 | SSE 5 | S 8 | S 8 | SSE 7 | SE 8 | S 10 | S 10 | S 10 | S 9 | E 7 | E 7 | E 7 | S 5 | SSE 6 | S 9 | SSE 10 | SSE 10 | SSE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 15 | 14 | 54 | 487 | 302 | 444 | 305 | 154 | 98 | 71 | 64 | 39 | 25 | 8 | 42 | 56 | 176 | 205 | 135 | 94 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-on | off | cross-off | cross-off | cross-on | on | cross-on | cross | cross-off | cross | cross |
High Tide | 8:08PM0.29m | 8:10AM0.32m | 8:58PM0.28m | 8:56AM0.34m | 9:45PM0.26m | 9:41AM0.34m | 10:31PM0.24m | 3:17AM0.19m | 11:16PM0.22m | 4:11AM0.19m | 00:02AM0.20m | 5:02AM0.19m | 00:52AM0.19m | |||||||
Low Tide | 3:33PM0.03m | 4:02AM0.11m | 4:26PM0.01m | 00:27AM0.20m | 4:47AM0.12m | 5:16PM0.01m | 00:56AM0.19m | 5:29AM0.14m | 6:04PM0.01m | 6:10AM0.15m | 6:51PM0.02m | 6:50AM0.16m | 7:37PM0.03m | 7:27AM0.17m | 8:22PM0.05m | |||||
 |  |  | |  | | | | | |  |  | | | | | | | | | |
 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — |
 | 6:27 | — | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 11 | 10 | 9 | 9 | 9 | 11 | 12 | 13 | 12 | 14 | 15 | 15 | 10 | 11 | 10 | 15 | 17 | 13 |
Feels °C | 10 | 9 | 5 | 3 | 3 | 3 | 4 | 7 | 9 | 10 | 10 | 8 | 9 | 12 | 6 | 7 | 5 | 10 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | E 8 | ENE 6 | S 8 | E 9 | SSE 11 | E 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | WSW 4 | E 8 | SSE 6 | S 9 | SSE 10 | SSE 10 | ENE 6 |
| kJ | 15 | 14 | 5 | 13 | 302 | 7 | 66 | 97 | 65 | 57 | 47 | 39 | 25 | 3 | 6 | 56 | 176 | 205 | 135 | 42 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | ENE 8 | E 13 | E 12 | E 7 | — | — | S 10 | S 10 | S 10 | S 9 | SSE 9 | S 9 | E 7 | E 6 | S 10 | SE 12 | ENE 10 | — | SSE 9 |
| kJ | 10 | 7 | 3 | 3 | 22 | — | — | 154 | 98 | 71 | 64 | 25 | 6 | 8 | 3 | 51 | 37 | 18 | — | 94 |
Swell 3 Height (m) Direction Period (s) | E 14 | E 13 | — | — | E 11 | — | — | — | SE 7 | ENE 8 | ESE 9 | ENE 7 | S 11 | E 9 | S 9 | E 8 | — | — | — | E 9 |
| kJ | 4 | 3 | — | — | 3 | — | — | — | 8 | 13 | 8 | 15 | 2 | 6 | 7 | 12 | — | — | — | 7 |
Wind waves Height (m) Direction Period (s) | ESE 2 | SE 3 | SSE 5 | S 8 | — | SSE 7 | SE 8 | — | — | ENE 2 | NE 3 | NW 3 | W 4 | S 3 | S 5 | — | ENE 4 | NE 4 | ENE 4 | — |
| kJ | 1 | 6 | 54 | 487 | — | 444 | 305 | — | — | 1 | 5 | 2 | 6 | 5 | 42 | — | 20 | 12 | 17 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 649 | 915 | 945 | 534 | 534 | 156 | 431 | 6 | 1 | 1 | 0 | 10 | 115 | 115 | 431 | 109 | 1 | 1 | 1 | 1 |
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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