Surf Forecasts:
Montoya surf forecast from 15 Aug 2026:
- Best quality surf: Sunday 16 Aug, 6AM (local time) - 4.5ft (1.3m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 3AM (local time) - 7ft (2.2m), 12s period, SSW swell with 1,267 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 6AM (local time) - 4.5ft (1.3m), 8s 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 6AM. The primary swell is predicted to be 1.3m and 8s 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 2.2m 12s and forecast to arrive on Saturday (Aug 22) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Friday (Aug 21) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 16th Aug) | 4.5ft (1.3m) 8s |
| Best Surf | 6AM (Sun 16th Aug) | 4.5ft (1.3m) 8s |
| Most Powerful | 3AM (Sat 22nd Aug) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Montoya over the next 16 days.
The Lowdown
Alright, Rusty here. Let's chew the fat on what Montoya is serving up.
The first few days are a bust, no surf worth paddling for until Sunday the 16th. The water temp is sitting right where it should be for this time of year.
Sunday the 16th is your first real window. The morning is clean with a 4ft easterly swell. The wind is light and cross-offshore, so the waves will be looking sharp. It's not a monster, but it's the only game in town with moderate energy (223). Might see a few heads out, but nothing crazy.
Then it's back to grim. Monday through Friday is all onshore junk and rain. Thursday the 20th afternoon sees a spike to 8ft from the SSW, but the wind is rubbish, so leave it. The energy picks up (483), but the quality is trash.
Here's the real deal. Saturday the 22nd of August and Sunday the 23rd are the standout. Saturday morning is clean, with a 7ft SSW groundswell and a very long 13-second period. The energy is pumping at 1793. This is not for the faint of heart. By the afternoon, it's hitting 8ft with a 14-second period, and the energy is screaming (4349). Expert-only waves with a solid cross-offshore breeze. That's a serious paddle. Because the period is so long, it'll hold up best on a point or reef. The word will be out, so expect a crowd.
Sunday the 23rd is still big, with a 8ft S swell and a 12-second period, but the wind is cross-shore and it'll be a bit lumpy. Still huge energy (2582), still a challenge for the experienced crew.
Monday the 24th morning is a last gasp, with a cleaner 6ft SSE swell and a long period, but it's much smaller after the weekend. The rest of that week fades into smaller, choppier conditions.
Best bet: Make a plan for Saturday the 22nd. That's the one to watch, big and clean.
- Rusty
Short Range ForecastHeavy rain (total 23mm), heaviest during Sun night. Very mild (max 17°C on Sun morning, min 10°C on Mon morning). Winds decreasing (fresh winds from the ENE on Sat afternoon, calm by Sun morning). | Days 5-7 Weather SummaryHeavy rain (total 49mm), heaviest during Tue afternoon. Very mild (max 13°C on Wed morning, min 10°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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 10 | E 6 | E 6 | E 7 | E 8 | E 9 | E 9 | E 10 | E 10 | SSE 6 | SSE 6 | SSE 6 | S 7 | E 7 | E 7 | ESE 5 | E 6 | SSW 7 | S 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 163 | 108 | 217 | 272 | 195 | 175 | 160 | 158 | 92 | 126 | 159 | 170 | 88 | 74 | 83 | 75 | 61 | 435 | 30 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross-off | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-off |
High Tide | 9:10PM0.31m | 9:20AM0.31m | 10:02PM0.28m | 10:07AM0.32m | 10:53PM0.25m | 3:18AM0.20m | 11:44PM0.23m | 4:12AM0.20m | 00:37AM0.21m | 5:02AM0.19m | 12:31PM0.31m | 1:36AM0.19m | 5:52AM0.19m | 1:20PM0.30m | 2:50AM0.18m | ||||
Low Tide | 5:15AM0.09m | 5:35PM0.02m | 1:35AM0.20m | 6:00AM0.11m | 6:28PM0.02m | 6:44AM0.12m | 7:19PM0.02m | 7:26AM0.14m | 8:09PM0.03m | 3:09AM0.18m | 8:58PM0.04m | 3:45AM0.18m | 9:47PM0.06m | ||||||
 |  |  |  | |  |  | | |  |  | | |  |  |  | | | | |
 | — | 7:20 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — |
 | 6:07 | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — |
mm | — | — | 1 | 2 | — | 6 | 8 | 2 | 4 | 14 | 12 | 16 | 1 | — | — | 1 | 1 | 4 | — |
Temp °C | 12 | 13 | 13 | 15 | 17 | 15 | 14 | 10 | 10 | 10 | 11 | 11 | 12 | 13 | 13 | 13 | 12 | 12 | 12 |
Feels °C | 8 | 8 | 7 | 14 | 19 | 14 | 13 | 6 | 5 | 5 | 6 | 8 | 8 | 10 | 10 | 11 | 11 | 11 | 8 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 9 | SSE 9 | SSE 9 | E 8 | E 9 | E 9 | E 10 | E 10 | E 10 | ENE 10 | ENE 9 | ESE 6 | S 7 | S 7 | SSE 6 | E 6 | E 7 | S 6 |
| kJ | 163 | 92 | 65 | 48 | 195 | 175 | 160 | 158 | 92 | 71 | 31 | 29 | 52 | 34 | 33 | 14 | 61 | 48 | 30 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SSE 9 | SSE 9 | SSE 8 | S 8 | — | — | — | — | S 7 | SE 14 | SE 14 | — | SSE 7 | — | SE 7 |
| kJ | — | — | — | — | 28 | 15 | 7 | 5 | — | — | — | — | 88 | 8 | 7 | — | 5 | — | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 11 | — | — | — | — | — | E 9 | — | SE 13 | — | SE 13 | — | E 8 |
| kJ | — | — | — | — | — | — | 2 | — | — | — | — | — | 15 | — | 7 | — | 6 | — | 18 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 7 | — | — | — | SSE 4 | SSE 4 | SSE 6 | SSE 6 | SSE 6 | — | E 7 | E 7 | ESE 5 | SSE 5 | SSW 7 | WSW 5 |
| kJ | 64 | 108 | 217 | 272 | — | — | — | 17 | 41 | 126 | 159 | 170 | — | 74 | 83 | 75 | 30 | 435 | 75 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 109 | 534 | 931 | 61 | 0 | 62 | 68 | 405 | 534 | 534 | 396 | 152 | 419 | 248 | 431 | 282 | 166 | 61 | 10 |
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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