
Surf Forecasts:
The Rock-Costa Azul surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 8PM (local time) - 7ft (2.1m), 12s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 11PM (local time) - 5ft (1.6m), 16s period, SSW swell with 1,257 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 8PM (local time) - 7ft (2.1m), 12s period with SW swell.
Best Forecast Surf Conditions for The Rock-Costa Azul this week:
The surf forecast for The Rock-Costa Azul over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 04) at 8PM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 1.5m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Rock-Costa Azul in the next 16 days are 1.6m 16s and forecast to arrive on Friday (Sep 04) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Monday (Sep 07) at 5AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 4th Sep) | 7ft (2.1m) 12s |
| Best Surf | 8PM (Fri 4th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 11PM (Fri 4th Sep) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.
The Lowdown
Alright, Rusty here, let's talk about the Rock.
We've got a solid run of swell coming through over the next couple of weeks. The standout is definitely the early weekend, with a pulse of strong, long-period groundswell that's going to light up this reef. The combined energy is massive, hitting 2369 on Friday morning, so there's plenty of power in the water. That's proper strong wave energy.
The water is sitting at 88°, which is a whopping 5° warmer than normal for this time of year. That's very unusual, and it's going to feel like you're surfing in the tropics.
Kicking off on Friday the 4th of September, we see a 7ft SW groundswell arriving with a 12-second period. The wind is a cross-on from the SE at 9 mph, which does put a bit of chop on the surface. It's a bit lumpy, but the power is there. Friday afternoon drops to 5ft from the SSW, period jumps to 16 seconds, and the wind goes cross-shore, cleaning it up a little.
But the real magic starts Saturday morning the 5th. The swell holds at 5ft from the SSW, still a very long 16-second period, and the wind goes super light. That's a big positive. By Saturday afternoon, the wind swings to a light cross-offshore from the WSW, making for clean surf at 5ft.
Sunday the 6th is the absolute gem of the whole forecast. We're looking at 4ft of SSW swell with a 15-second period, and the wind is forecast to be glassy in the morning. Dead calm. That's going to be as clean as it gets. The afternoon stays clean with a light offshore breeze from the NW. For a break like The Rock, which is a consistent reef (Costa Azul), this is when you want to be in the water. The swell is at a manageable size so it's not too big for a strong intermediate, but the quality will be top-notch. Expect it to be a bit busy, as this spot gets crowded often.
The combined energy drops through the week, into the 800-600 range, which is still moderate. Winds are a bit mixed, but there are moments of clean glass and cross-offshore conditions. The window for the best, cleanest waves this week is definitely Sunday morning.
Looking further ahead into the second week, the swell drops off significantly. From the 12th of September onwards, we're mostly looking at knee-to-waist high waves, 2ft to 3ft, with some very long periods. The 17th of September afternoon shows a 2ft swell riding a 21-second period, which is a very long period, but the size is tiny. The 19th of September afternoon has a cleaner 3ft from the SW. These are promising but far off, so less certain. Just keep an eye on the charts.
Rusty, signing off.
Short Range ForecastModerate rain (total 12mm), heaviest on Sat afternoon. Warm (max 32°C on Sat morning, min 27°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 23mm), heaviest during Tue night. Warm (max 31°C on Mon morning, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 12 | SW 12 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | W 11 | W 11 | W 11 | W 10 | SSW 13 | SW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
1214 | 1126 | 1054 | 1040 | 840 | 647 | 656 | 602 | 494 | 403 | 396 | 274 | 257 | 214 | 381 | 410 | 687 | 854 | 644 | 729 | 551 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | off | cross-on | cross-off | off | glassy | off | off | on | cross | off | cross-on | cross-on | glassy | cross-on | cross-off | off | cross-off | cross-off | off |
High Tide | 12:32PM1.43m | 3:10PM1.38m | 7:32AM1.20m | 5:00PM1.48m | 7:29AM1.29m | 6:03PM1.61m | 7:43AM1.39m | 6:51PM1.70m | 8:01AM1.48m | 7:32PM1.74m | 8:21AM1.56m | 8:09PM1.72m | |||||||||
Low Tide | 10:45PM0.47m | 11:53PM0.31m | 11:25AM1.06m | 00:34AM0.18m | 12:18PM0.89m | 1:09AM0.11m | 12:58PM0.72m | 1:39AM0.09m | 1:34PM0.56m | 2:06AM0.12m | 2:08PM0.44m | 2:31AM0.20m | |||||||||
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | |
mm | — | — | — | — | 3 | 3 | — | 3 | 3 | 1 | 1 | 8 | 2 | 3 | 8 | — | — | — | — | — | — |
Temp °C | 31 | 31 | 29 | 32 | 32 | 29 | 31 | 30 | 29 | 31 | 31 | 29 | 31 | 30 | 28 | 30 | 30 | 28 | 31 | 31 | 27 |
Feels °C | 33 | 33 | 32 | 36 | 35 | 32 | 35 | 34 | 33 | 35 | 35 | 34 | 34 | 33 | 32 | 33 | 32 | 31 | 33 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 11 | SW 10 | SW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 |
1214 | 1121 | 964 | 509 | 498 | 560 | 513 | 460 | 350 | 403 | 396 | 274 | 257 | 200 | 153 | 410 | 687 | 854 | 644 | 729 | 551 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 16 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 |
1141 | 1126 | 1054 | 1040 | 840 | 647 | 656 | 602 | 494 | 378 | 347 | 273 | 195 | 186 | 381 | 106 | 80 | 74 | 52 | 51 | 36 | |
Swell 3 Height (m) Direction Period (s) | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | S 11 | S 11 | S 8 |
14 | 13 | 12 | 11 | 12 | 26 | 11 | 11 | 58 | 88 | 82 | 154 | 148 | 214 | 131 | 82 | 81 | 71 | 82 | 55 | 35 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | W 3 | W 4 | W 4 | WNW 4 | WNW 4 | WNW 4 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 5 | 6 | 16 | 13 | 17 | 18 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 426 | 455 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 4 | 8 | 0 | 8 | 8 | 0 | 87 | 414 | 0 | 0 | 455 | 0 |
Best forecast wave conditions in Baja Sur | |||||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||||
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Information about the The Rock-Costa Azul Surf forecast
The above surf forecast table for The Rock-Costa Azul provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Rock-Costa Azul can be found by selecting the local surf guide option on the grey menu. Our The Rock-Costa Azul 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 (The Rock-Costa Azul) 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 The Rock-Costa Azul 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.
The Rock-Costa Azul is 13 km (8 miles) from Cabo San Lucas. If you plan a holiday in Baja Sur, look for hotels and other accommodation in Cabo San Lucas. Cabo San Lucas has rooms for a wide range of budgets as well as car hire and transport links.










