Surf Forecasts:
Montoya surf forecast from 9 Sep 2026:
- Best quality surf: Monday 14 Sep, 3AM (local time) - 2.5ft (0.8m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 9AM (local time) - 7.5ft (2.3m), 7s period, SSE swell with 547 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 3AM (local time) - 1.5ft (0.5m), 13s 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 Thursday (Sep 10) at 3AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.3m and 3s. 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 2.3m 7s and forecast to arrive on Saturday (Sep 12) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 7s period and expected on Thursday (Sep 10) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 10th Sep) | 1.5ft (0.5m) 13s |
| Best Surf | 3AM (Mon 14th Sep) | 2.5ft (0.8m) 10s |
| Most Powerful | 9AM (Sat 12th Sep) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Montoya over the next 16 days.
The Lowdown
Righto, let's have a squiz at what's on offer for the next couple of weeks.
To be straight up with you, the next few days are looking pretty bleak. We've got a long stretch of weak, poor-quality surf coming up, so don't be in a rush to wax up just yet. The first half of this forecast period is pretty much a write-off. There's a small window of something that might be worth a look, but you gotta be patient.
Alright, let's start where there's a glimmer of hope. The first real chance of anything decent comes around Thursday, September 17th. Through the morning at Montoya, we're looking at some chest-to-shoulder high swell, about 4 ft from the SSE, with a solid 12-second period. The wind is coming from the NNE at 12 mph, which is a cross-offshore breeze, meaning the conditions should be clean and lined up. The combined energy is moderate (391), so there's some push there. It's still a bit marginal, but could be the best we see for a while.
If you can, also keep an eye on Saturday, September 19th. It's not going to be huge, only about 2 ft on the morning from the S with a 12-second period, but the wind swings around to a clean NNW offshore at just 6 mph, which is glassy. The energy is weak (74), but for a small-wave longboard or a fish, it could be fun and uncrowded.
Before that, the Saturday, September 12th session is big but ugly – 8 ft from the SSE with a short, choppy 7-second period and onshore wind. That's a raw, messy encounter only for the very keen, and honestly, the combined energy is strong (584), but it's going to be a battle. It looks more like a day for the kite surfers than the paddle crew.
The rest of the period is basically non-stop small, weak, or wonky conditions. We've got a few days of clean, small surf around the 15th and 18th, but the swell is tiny – under 3 ft with very little energy. The water temperature feels about average for this time of year.
So, bottom line: if you had to pick one, Thursday morning, September 17th at Montoya with that clean 4 ft swell is your best bet. The Saturday morning, September 19th is a longshot for the glassy, tiny-wave crew. Otherwise, keep your board in the bag and wait for the next run of better forecasts.
Stay patient,
Rusty
Short Range ForecastMostly dry. Very mild (max 14°C on Wed afternoon, min 10°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Mon morning, min 9°C on Sat afternoon). Winds decreasing (fresh winds from the SSE on Sat morning, light winds from the SE by Sat night). | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 11 | SSE 16 | S 14 | SSE 12 | S 11 | S 10 | S 10 | SE 4 | S 5 | SSE 7 | SSE 8 | SSE 8 | S 11 | S 10 | S 10 | SSE 10 | SSE 10 | S 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 29 | 25 | 48 | 93 | 46 | 37 | 31 | 17 | 27 | 27 | 547 | 494 | 432 | 284 | 171 | 127 | 177 | 133 | 61 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross | cross | cross-on | cross-on | on | on | cross-on | on | cross-on | on | on | on | cross | cross | cross | cross-off |
High Tide | 5:43AM0.23m | 6:16PM0.32m | 6:35AM0.26m | 7:15PM0.31m | 7:24AM0.29m | 8:08PM0.29m | 8:10AM0.32m | 8:58PM0.28m | 8:56AM0.34m | 9:45PM0.26m | 9:41AM0.34m | 10:31PM0.24m | |||||||
Low Tide | 1:29AM0.07m | 1:29PM0.09m | 2:25AM0.08m | 2:35PM0.06m | 3:15AM0.10m | 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 | |||||
 |  |  |  |  | |  | | | | | | | | | | | | | |
 | — | 6:48 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — |
 | 6:24 | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 13 | 14 | 11 | 13 | 14 | 12 | 13 | 13 | 12 | 10 | 10 | 9 | 10 | 10 | 10 | 13 | 13 | 13 |
Feels °C | 7 | 10 | 11 | 7 | 10 | 10 | 9 | 9 | 9 | 8 | 3 | 4 | 4 | 5 | 5 | 5 | 9 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSE 11 | S 12 | S 14 | SSE 12 | S 11 | S 10 | S 10 | E 8 | E 5 | E 7 | E 7 | E 8 | S 11 | S 10 | S 10 | SSE 10 | SSE 10 | S 9 |
| kJ | 22 | 25 | 24 | 93 | 46 | 37 | 18 | 17 | 6 | 20 | 37 | 69 | 74 | 284 | 171 | 127 | 177 | 133 | 61 |
Swell 2 Height (m) Direction Period (s) | E 4 | S 8 | SSE 16 | ENE 7 | ENE 7 | S 11 | S 10 | ENE 7 | E 7 | E 8 | — | — | SSE 12 | SE 7 | ESE 8 | ESE 7 | E 7 | ESE 9 | E 7 |
| kJ | 5 | 5 | 48 | 5 | 18 | 37 | 31 | 5 | 1 | 5 | — | — | 50 | 26 | 79 | 43 | 25 | 44 | 26 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | SE 9 | E 8 | SE 8 | — | — | — | E 14 | E 14 | E 13 | — | — | — | SE 7 | — | ENE 9 | E 9 | ENE 9 | E 9 |
| kJ | 29 | 12 | 1 | 3 | — | — | — | 4 | 4 | 3 | — | — | — | 45 | — | 8 | 7 | 7 | 15 |
Wind waves Height (m) Direction Period (s) | NE 3 | — | ESE 8 | ENE 3 | NE 3 | E 7 | E 4 | E 4 | SE 4 | S 5 | SSE 7 | SSE 8 | SSE 8 | ESE 8 | — | ENE 4 | — | — | — |
| kJ | 3 | — | 14 | 4 | 1 | 26 | 9 | 10 | 27 | 27 | 547 | 494 | 432 | 83 | — | 8 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 1 | 431 | 66 | 429 | 723 | 967 | 723 | 534 | 418 | 149 | 109 | 2 | 1 | 109 | 0 |
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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