Surf Forecasts:
The Rock-Costa Azul surf forecast from 14 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 5AM (local time) - 2.5ft (0.8m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Sunday 20 Sep, 8AM (local time) - 3.5ft (1.1m), 19s period, SW swell with 819 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 5PM (local time) - 2ft (0.6m), 18s 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 Monday (Sep 14) at 5PM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.6m and 9s. 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 1.1m 19s and forecast to arrive on Sunday (Sep 20) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Sep 20) at 5PM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Mon 14th Sep) | 2ft (0.6m) 18s |
| Best Surf | 5AM (Tue 15th Sep) | 2.5ft (0.8m) 16s |
| Most Powerful | 8AM (Sun 20th Sep) | 3.5ft (1.1m) 19s |
Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.
The Lowdown
Alright folks, Rusty here, taking a look at the Rock-Costa Azul. This spot is a consistent reef break over in the Costa Azul region, exposed to the south swell. The water temp is reading 88.5°, which is a wild 6.1° warmer than average for this time of year – that’s very unusual, you won't need a wetsuit, that's for sure.
Right now, we’ve got a bit of an exciting window opening up. From Monday the 14th onwards, the pattern settles into classic late-season form. The initial conditions are a bit messy Monday morning, with a light onshore breeze, but it cleans up nicely by Monday afternoon. The real run of glory starts Wednesday the 16th afternoon and runs right through to the end of the following week.
We've got a long-period groundswell from the southwest rolling in, with 18-second intervals. That's a very long period, so the wave shapes will be generous and full of energy, but it might tend to race a bit at a beach break—good thing this is a reef setup. Swell heights sit around 2.6ft to 3.6ft most days, with the combined energy in the moderate but punchy range (between 406 and 841). It's clean, it's consistent, and the crowd situation at the Rock... let's just say it can get *often* busy, so get out there early.
The absolute standout for the whole forecast is Thursday the 17th. Morning and afternoon, we've got glassy conditions. The combined energy hits 821 for the morning session, with a 3.6ft SSW swell. The wind is dead calm—just a slight air, and it’s glass. That’s as good as it gets for clean, rippable waves. Friday the 18th is also a beauty with a very long 19-second period, although the swell drops slightly to 2.6ft.
The following week (September 21st and 22nd) is another prime window. Monday the 21st delivers 3.6ft SW swell with glassy conditions and a calm wind – a top-tier call. Tuesday the 22nd is also dead calm and glassy all day. The wave energy and size hold solid through Wednesday the 23rd, but the period drops to 15 or 14 seconds.
After Thursday the 24th, the swell slowly starts to fade, dropping to 3.0ft with shorter periods (13-12 seconds), and the winds turn a bit more cross-on, making those sessions more marginal. There's a smaller spike in period on the 28th, but the size drops out to 1.6ft.
Overall, no gaps here – the surf is on offer from day one. The best of the best is clearly that Thursday the 17th and Monday the 21st. Get on it.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 31°C on Mon morning, min 27°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Thu morning, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 18 | SW 18 | SSW 16 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 20 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 312 | 249 | 310 | 249 | 322 | 627 | 481 | 505 | 515 | 472 | 367 | 388 | 450 | 380 | 465 | 455 | 455 | 621 | 560 | 553 | 745 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | off | on | cross | off | cross-on | cross-off | off | glassy | glassy | off | glassy | cross-off | cross-off | cross | cross-off | off | cross-off | cross-off | off |
High Tide | 9:40AM1.64m | 10:18PM1.24m | 9:57AM1.60m | 10:46PM1.08m | 10:13AM1.52m | 11:15PM0.92m | 10:24AM1.44m | 10:28AM1.34m | 9:55AM1.24m | 8:18AM1.19m | 4:33PM1.23m | ||||||||||
Low Tide | 4:15PM0.38m | 3:35AM0.65m | 4:48PM0.46m | 3:37AM0.74m | 5:25PM0.56m | 3:20AM0.79m | 6:26PM0.68m | 11:35PM0.65m | 00:01AM0.53m | 12:17PM1.10m | 00:21AM0.43m | ||||||||||
 | |  |  | |  | | | | | | | | | | | | | |  | | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — | — | 6:16 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 31 | 30 | 28 | 30 | 30 | 28 | 31 | 31 | 29 | 32 | 31 | 29 | 32 | 32 | 29 | 32 | 32 | 28 | 32 | 32 | 29 |
Feels °C | 35 | 34 | 32 | 33 | 33 | 32 | 35 | 35 | 33 | 36 | 34 | 33 | 36 | 35 | 32 | 35 | 34 | 30 | 36 | 34 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 |
| kJ | 312 | 249 | 310 | 201 | 322 | 627 | 481 | 505 | 515 | 472 | 367 | 342 | 246 | 192 | 465 | 455 | 455 | 621 | 560 | 553 | 745 |
Swell 2 Height (m) Direction Period (s) | SW 12 | S 9 | S 9 | SSW 18 | SSW 18 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSW 21 | SSW 21 | SW 20 | SW 19 | SW 19 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 |
| kJ | 71 | 61 | 42 | 249 | 246 | 61 | 43 | 43 | 44 | 305 | 297 | 388 | 450 | 380 | 178 | 131 | 131 | 115 | 111 | 109 | 74 |
Swell 3 Height (m) Direction Period (s) | S 9 | SSW 12 | SW 12 | S 9 | SSE 9 | SW 6 | SSW 12 | SW 23 | SW 21 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 25 | 96 | 68 | 40 | 62 | 9 | 79 | 140 | 224 | 44 | 49 | 80 | 70 | 70 | 67 | 55 | 53 | 38 | 39 | 28 | 28 |
Wind waves Height (m) Direction Period (s) | NW 4 | — | — | — | — | — | — | — | WNW 3 | — | WNW 4 | WNW 4 | — | WNW 5 | WNW 7 | — | W 3 | WNW 7 | WNW 3 | WNW 4 | WNW 4 |
| kJ | 3 | — | — | — | — | — | — | — | 7 | — | 3 | 9 | — | 9 | 27 | — | 5 | 31 | 3 | 20 | 17 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 8 | 0 | 0 | 33 | 455 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 530 | 0 | 0 | 0 | 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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