Surf Forecasts:
The Rock-Costa Azul surf forecast from 8 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 8AM (local time) - 3ft (0.9m), 13s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 8PM (local time) - 4ft (1.2m), 17s period, SW swell with 874 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 8AM (local time) - 3ft (0.9m), 13s period with SSW 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 Tuesday (Sep 08) at 8AM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.8m and 10s. The wind is predicted to be glassy 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 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Friday (Sep 11) at 5PM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Tue 8th Sep) | 3ft (0.9m) 13s |
| Best Surf | 8AM (Tue 8th Sep) | 3ft (0.9m) 13s |
| Most Powerful | 8PM (Wed 9th Sep) | 4ft (1.2m) 17s |
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-Costa Azul.
We’ve got a solid 16-day window opening up, but don’t rush down there just yet. The first couple of days are a write-off – messy winds and poor conditions. But from Wednesday the 9th onwards, this place starts to turn on, and there’s a real standout weekend and beyond that’s got me excited.
The swell is coming from the SW, which is exactly what this exposed reef wants to see. That run of clean, glassy conditions kicks off Wednesday afternoon (September 9th) with a clean 4ft SW swell, period a healthy 17 seconds. That’s long-period groundswell, surfers. It’ll have punch, shape, and proper energy (combined energy of 796 – moderate). The wind goes cross-offshore, so expect lined-up walls.
Thursday the 10th is a beauty. Morning glass-off with 4ft SW swell at 16 seconds and the energy climbing to 805. The water temp is about average for this time of year, nothing to write home about but not holding anything back. Crowds can be an issue here – they often are – but on days like this, you’ll put up with it.
Friday the 11th stays clean, Saturday the 12th is glassy again in the morning with 3ft SW. If you’re after the true standout, look at Sunday the 20th. Afternoon session: 4ft SW swell, period 18 seconds, combined energy hitting 1190 – that’s strong energy, experienced surfer territory. Winds are light and offshore, conditions will be excellent. That one’s a keeper.
The following week keeps rolling with consistent 3ft to 4ft SW groundswell, clean winds, and glassy mornings. Tuesday the 22nd has a nice 4ft SW swell with glass-off wind. This is a long stretch of quality. Just watch out: Wednesday the 23rd morning sees the wind shift onshore and chop things up, so plan around that.
This is a reef break for advanced surfers. Swell over 8ft doesn’t appear, so it stays fun but not macking. The long-period nature of the swell (over 15 seconds at times) means it’ll break with good shape on this reef, but at a beach break, that long period can make waves wall up. Here at the Rock, it’s a bonus.
All in all, the second week is your best bet, with that Sunday the 20th being the highlight. Get on it.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Warm (max 32°C on Wed morning, min 28°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Fri night. Warm (max 31°C on Sat morning, min 27°C on Fri morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 | SSW 13 | SSW 13 | SW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 16 | SW 13 | SSW 18 |
Wave Graph  | |||||||||||||||||||
 kJ | 273 | 195 | 214 | 381 | 410 | 687 | 854 | 739 | 729 | 605 | 489 | 412 | 362 | 293 | 218 | 180 | 138 | 175 | 207 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | off | cross-on | cross-off | off | glassy | cross-off | off | cross-off | cross-off | off | glassy | off | off | on | cross-off | off |
High Tide | 7:43AM1.39m | 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 | |||||||
Low Tide | 1:09AM0.11m | 12:58PM0.72m | 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 | ||||||
 |  |  | | | | | | |  | |  | | | | |  | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — |
 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — |
mm | 2 | 1 | — | 1 | — | — | 5 | 3 | — | 1 | 2 | 1 | 6 | 1 | 5 | 1 | — | — | 2 |
Temp °C | 28 | 30 | 31 | 29 | 32 | 31 | 29 | 29 | 31 | 28 | 27 | 30 | 27 | 31 | 30 | 28 | 30 | 30 | 28 |
Feels °C | 33 | 32 | 34 | 32 | 35 | 35 | 33 | 33 | 35 | 30 | 29 | 33 | 31 | 36 | 34 | 31 | 34 | 34 | 32 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | SW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 13 | WNW 6 | SW 13 | SSW 12 |
| kJ | 190 | 117 | 81 | 381 | 410 | 687 | 854 | 739 | 729 | 605 | 489 | 412 | 362 | 293 | 218 | 180 | 35 | 175 | 103 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSE 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | WNW 5 | WNW 5 | S 8 | WNW 6 | SSE 8 | S 8 | SW 13 | W 6 | SSW 18 |
| kJ | 273 | 195 | 186 | 62 | 82 | 74 | 55 | 66 | 60 | 41 | 20 | 39 | 34 | 33 | 19 | 11 | 138 | 17 | 207 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 16 | W 9 | W 9 | W 8 | W 8 | W 8 | SSW 11 | W 8 | S 7 | S 9 | W 11 | S 8 | W 12 | SSE 7 | SW 16 | SW 19 | SSE 10 |
| kJ | 154 | 150 | 214 | 56 | 53 | 35 | 49 | 33 | 22 | 10 | 25 | 38 | 9 | 31 | 11 | 5 | 125 | 133 | 55 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 8 | WNW 4 | WNW 5 | WNW 5 | WNW 6 | WNW 6 | W 5 | WNW 5 | WNW 6 | WNW 6 | — |
| kJ | — | — | — | — | — | — | — | — | 19 | 13 | 50 | 78 | 33 | 65 | 21 | 45 | 53 | 40 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 416 | 455 | 0 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 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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