Surf Forecasts:
Riviera Shorebreak surf forecast from 17 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 2AM (local time) - 3.5ft (1.0m), 16s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 19 Aug, 2AM (local time) - 3.5ft (1.0m), 16s period, SW swell with 483 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 5PM (local time) - 3ft (0.9m), 15s period with SW swell.
Best Forecast Surf Conditions for Riviera Shorebreak this week:
The surf forecast for Riviera Shorebreak over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 5PM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 0.2m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Riviera Shorebreak in the next 16 days are 1.0m 16s and forecast to arrive on Wednesday (Aug 19) at 2AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Mon 17th Aug) | 3ft (0.9m) 15s |
| Best Surf | 2AM (Wed 19th Aug) | 3.5ft (1.0m) 16s |
| Most Powerful | 2AM (Wed 19th Aug) | 3.5ft (1.0m) 16s |
Table - best surf conditions forecast for Riviera Shorebreak over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a good look at what the next couple of weeks are serving up for Riviera Shorebreak.
Right now, we're looking at a pretty flat spell to kick things off. The first week is a real struggle, with barely a wave worth paddling for. We’re stuck with small, poor-quality surf for days on end. The energy just isn't there, with combined swell readings staying mostly in the low to mid 300s, and often dropping well below that – that's weak stuff. Most of the time, the wind is blowing onshore or cross-onshore, messing up what little bump there is. Plenty of sessions will be written off with 'poor surf conditions' or 'marginal' calls, with a lot of unknown wind states too. Honestly, it’s a write-off until the very end of the run.
There's a light at the end of the tunnel though. We have to wait all the way until Tuesday, August 25th, for something to get excited about. That morning is the standout. Sure, the swell is still small at 2 ft from the SW, but the wind goes glassy – dead calm – and the call is for 'expect good surf conditions'. That’s the one window where it’ll be clean and workable, even if the waves are tiny.
After that little blip, things get tricky again, but by the time we hit the first weekend of September, the ocean starts waking up. From August 29th onwards, the swell starts to build. We're looking at 4 ft to 4 ft from the SW, and the energy jumps into the 700 to 900 range (moderate energy) – a real sign of life. The period stretches to 16-17 seconds, which means proper groundswell. That longer period will hold the shape better, but with a mainly cross-onshore wind, it won't be perfect. The pick of that late period might be the Sunday August 30th afternoon, with the 4 ft SW swell, light winds, and a combined energy of 793. But don't kid yourself, conditions are still 'marginal'.
So, for the true standout, you’ve got two options. For the tiny, clean wave, be there on the morning of Tuesday the 25th. For the bigger, more powerful, but messier swell, the last few days of August into September 1st are your best bet for something with a bit more push. This is Riviera Shorebreak, and it only rarely breaks, so any wave is a bonus, but don't expect a classic.
Given it's a beach and reef setup, if that late August 4 ft swell gets paired with stronger winds, it might be more interesting for the kite surfers than us paddle guys. But we'll take what we can get.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Mon afternoon. Warm (max 32°C on Mon morning, min 24°C on Mon afternoon). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Thu night. Warm (max 31°C on Thu afternoon, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | SW 14 | SW 15 | SW 13 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SSW 13 | SSW 14 | SW 16 | SSW 13 | SW 14 | SSW 14 | SW 14 | SW 18 |
Wave Graph | |||||||||||||||||||||
341 | 355 | 216 | 336 | 350 | 483 | 340 | 305 | 297 | 284 | 232 | 140 | 134 | 147 | 246 | 258 | 116 | 301 | 264 | 203 | 222 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | glassy | cross-on | cross-on | off | on | cross-on | glassy | on | cross-on | cross | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-on | on | cross-off |
High Tide | 10:59AM1.51m | 11:22PM1.12m | 11:16AM1.47m | 00:07AM0.95m | 11:31AM1.41m | 11:46AM1.34m | 11:15AM1.26m | 2:07PM1.26m | 8:58AM1.22m | 4:46PM1.31m | 8:16AM1.25m | 5:47PM1.42m | |||||||||
Low Tide | 5:32PM0.64m | 4:29AM0.76m | 6:23PM0.70m | 4:07AM0.84m | 8:25PM0.75m | 11:47PM0.63m | 12:02PM1.26m | 00:24AM0.50m | 12:17PM1.17m | 00:51AM0.39m | 12:34PM1.07m | 1:14AM0.29m | |||||||||
5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | |
— | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:32 | — | — | 6:31 | — | |
mm | — | 17 | 1 | — | — | 3 | — | — | 1 | — | — | 6 | — | 1 | 4 | — | — | — | — | — | — |
Temp °C | 32 | 32 | 26 | 30 | 30 | 26 | 29 | 30 | 28 | 30 | 31 | 30 | 31 | 31 | 29 | 30 | 30 | 28 | 30 | 30 | 29 |
Feels °C | 37 | 35 | 31 | 34 | 34 | 30 | 33 | 33 | 31 | 33 | 34 | 35 | 35 | 35 | 32 | 31 | 32 | 32 | 33 | 33 | 34 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 15 | SW 13 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SSW 13 | SSW 14 | SW 16 | SSW 13 | SW 14 | SSW 14 | SW 14 | SSW 13 |
341 | 355 | 205 | 336 | 350 | 483 | 340 | 305 | 297 | 284 | 232 | 140 | 134 | 147 | 246 | 258 | 116 | 301 | 264 | 203 | 222 | |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SW 16 | S 8 | SW 8 | SW 22 | S 9 | W 8 | SW 21 | SW 19 | SW 19 | SW 19 | SSW 10 | SW 17 | SW 18 | S 10 | S 4 | S 9 | SW 18 | SW 18 | SW 18 |
6 | 6 | 216 | 5 | 16 | 18 | 14 | 1 | 67 | 14 | 14 | 126 | 18 | 44 | 49 | 28 | 9 | 38 | 114 | 113 | 201 | |
Swell 3 Height (m) Direction Period (s) | S 11 | W 11 | SW 8 | WSW 4 | W 9 | W 9 | — | — | W 8 | SW 19 | SW 18 | S 9 | SW 18 | — | W 4 | SW 20 | SSW 16 | SW 20 | SSW 8 | SSW 8 | S 11 |
3 | 2 | 17 | 1 | 1 | 1 | — | — | 1 | 54 | 12 | 15 | 48 | — | 3 | 61 | 100 | 97 | 24 | 24 | 57 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WSW 4 | — | — | — | — | — | WNW 3 | — | — | W 3 | — | SSE 3 | — | — | — | — | — |
— | — | — | — | 1 | — | — | — | — | — | 3 | — | — | 1 | — | 2 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 135 | 3 | 0 | 135 | 298 | 0 | 135 | 307 | 0 | 135 | 305 | 0 | 135 | 305 | 41 | 74 | 12 | 0 | 12 | 307 | 0 |
Best forecast wave conditions in Sinaloa | |||||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Riviera Shorebreak Surf forecast
The above surf forecast table for Riviera Shorebreak provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Riviera Shorebreak can be found by selecting the local surf guide option on the grey menu. Our Riviera Shorebreak 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 (Riviera Shorebreak) 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 Riviera Shorebreak 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 Sinaloa? If you are looking for accommodation near Riviera Shorebreak, camping, hotels and holiday cottages in Sinaloa, consider staying in Mazatlan which is 20 km (12 miles) away. Alternatively, find information about places to stay and car hire in Escuinapa de Hidalgo which is 91 km (57 miles) away











