Surf Forecasts:
The Rock-Costa Azul surf forecast from 9 Sep 2026:
- Best quality surf: Monday 14 Sep, 8PM (local time) - 8ft (2.5m), 8s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 11PM (local time) - 4ft (1.2m), 17s period, SW swell with 874 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 2AM (local time) - 3ft (0.9m), 16s 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 Wednesday (Sep 09) at 2AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.7m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at The Rock-Costa Azul in the next 16 days are 1.2m 17s and forecast to arrive on Wednesday (Sep 09) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Tuesday (Sep 15) at 8AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 9th Sep) | 3ft (0.9m) 16s |
| Best Surf | 8PM (Mon 14th Sep) | 8ft (2.5m) 8s |
| Most Powerful | 11PM (Wed 9th Sep) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about the waves at The Rock-Costa Azul.
We’ve got a solid run of swell on the way, starting from Tuesday afternoon the 8th of September. The wait is worth it. This is a consistent, exposed reef break that needs a good S direction swell to really light up, and it’s going to get that. The water is sitting at 88°, which is much warmer than usual for this time of year – a real treat.
Tuesday afternoon kicks it off with a clean 2ft SW groundswell (16 sec period) and a light cross breeze. The combined energy is moderate at 481. It’s a slow start, but the quality is already there.
Wednesday the 9th sees things pick up. The morning is a little messy with a cross-on breeze, but the afternoon turns it on: 4ft SW groundswell (17 sec) with a clean cross-off wind. Energy jumps to 779. This is where it starts to feel good.
Thursday the 10th is the real standout. The morning is pure glass – 0 mph wind, 4ft SW groundswell (16 sec), and combined energy of 829. This is what you dream of. Clean, glassy, perfect reef waves. The afternoon has a risk of a thunderstorm but the wind stays clean. This is the best session on offer – a true highlight.
Friday the 11th keeps the quality high. Another glassy morning with 4ft SW groundswell (15 sec), then a clean offshore breeze in the afternoon. The swell starts to ease through the weekend, dropping to 2ft by Sunday the 13th, but the winds are mostly light or glassy, keeping conditions clean.
Monday the 14th is a weird one. Morning is clean with a 2ft SW groundswell (a very long 18 sec period – great for this reef), but the afternoon brings a 7ft SSE short-period windswell (7 sec) and a moderate breeze. That’s messy and too big for most, so morning is the call.
The second week stays interesting. From Tuesday the 15th through to Wednesday the 23rd of September, we see consistent 3ft to 4ft SSW to SW groundswells, with periods mostly 15 to 19 seconds. The energy stays moderate to strong, hitting 907 on the morning of the 21st. The winds are almost all light, glassy, or clean offshore. This is a long, sustained run of good surf. The standout in this second week is the morning of Monday the 21st: 4ft SW groundswell (17 sec), glassy, combined energy of 907. It’s a cracker. Crowds are likely at this spot, but with this much consistent quality, you’ll find your share.
No big gaps here – the surf starts on the 8th and keeps rolling through the whole 16 days. This is a gold run for The Rock.
Rusty.
Short Range ForecastHeavy rain (total 34mm), heaviest during Thu afternoon. Warm (max 31°C on Tue afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 64mm), heaviest during Fri night. Warm (max 30°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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) | SSW 13 | SW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 16 | SW 13 | SW 18 | SW 18 | SSE 7 | S 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 214 | 381 | 410 | 687 | 854 | 739 | 729 | 612 | 489 | 412 | 407 | 293 | 218 | 180 | 138 | 175 | 154 | 312 | 383 | 413 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-on | cross-off | off | glassy | cross-off | off | glassy | off | off | glassy | cross-off | cross-off | glassy | cross-off | off | cross-off | cross-off | off |
High Tide | 6:51PM1.70m | 8:01AM1.48m | 7:32PM1.74m | 8:21AM1.56m | 8:09PM1.72m | 8:42AM1.62m | 8:44PM1.65m | 9:02AM1.66m | 9:18PM1.54m | 9:22AM1.67m | 9:49PM1.39m | 9:40AM1.64m | 10:18PM1.24m | |||||||
Low Tide | 1:39AM0.09m | 1:34PM0.56m | 2:06AM0.12m | 2:08PM0.44m | 2:31AM0.20m | 2:41PM0.36m | 2:53AM0.31m | 3:13PM0.32m | 3:11AM0.43m | 3:45PM0.33m | 3:26AM0.55m | 4:15PM0.38m | 3:35AM0.65m | |||||||
 |  | | |  |  | | | | | | | | | | | |  | | | |
 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — |
mm | — | — | — | — | 3 | 1 | 16 | 13 | 1 | 5 | 29 | 7 | 8 | 3 | — | 9 | 3 | — | — | — |
Temp °C | 31 | 29 | 31 | 31 | 29 | 31 | 31 | 28 | 29 | 29 | 26 | 29 | 30 | 28 | 30 | 29 | 28 | 30 | 30 | 27 |
Feels °C | 34 | 33 | 35 | 34 | 33 | 35 | 35 | 31 | 34 | 33 | 28 | 34 | 34 | 31 | 34 | 33 | 32 | 33 | 32 | 29 |
Swell 1 Height (m) Direction Period (s) | W 9 | SW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | W 6 | SW 13 | SSW 12 | SW 18 | SW 18 | SSW 16 |
| kJ | 81 | 381 | 410 | 687 | 854 | 739 | 729 | 612 | 489 | 412 | 407 | 293 | 218 | 180 | 33 | 175 | 103 | 312 | 249 | 322 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSE 8 | SSE 8 | S 8 | S 8 | SSE 8 | SSE 8 | S 8 | S 7 | S 9 | S 8 | WNW 5 | S 8 | SSE 8 | SW 13 | W 6 | SW 18 | SSE 9 | SW 12 | SW 12 |
| kJ | 186 | 62 | 60 | 57 | 57 | 84 | 69 | 55 | 25 | 24 | 31 | 36 | 19 | 19 | 138 | 24 | 154 | 66 | 71 | 69 |
Swell 3 Height (m) Direction Period (s) | SW 16 | W 9 | W 9 | W 8 | W 8 | W 8 | WNW 8 | W 8 | W 11 | W 11 | W 11 | S 8 | SE 7 | W 12 | SW 16 | SW 19 | W 6 | SW 12 | SSW 15 | SSW 20 |
| kJ | 214 | 56 | 53 | 35 | 33 | 33 | 20 | 10 | 22 | 22 | 9 | 29 | 7 | 26 | 125 | 133 | 17 | 71 | 44 | 127 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 3 | NE 4 | — | WNW 4 | WNW 4 | WNW 5 | WNW 5 | WNW 5 | WNW 5 | — | — | WNW 6 | E 4 | SSE 7 | S 7 |
| kJ | — | — | — | — | — | 6 | 7 | — | 7 | 9 | 33 | 78 | 46 | 64 | — | — | 32 | 28 | 383 | 413 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 501 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 69 | 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.
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