Surf Forecasts:
The Rock-Costa Azul surf forecast from 10 Sep 2026:
- Best quality surf: Thursday 10 Sep, 5PM (local time) - 4ft (1.2m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 2PM (local time) - 4ft (1.2m), 16s period, SW swell with 729 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 5PM (local time) - 4ft (1.2m), 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 Thursday (Sep 10) at 5PM. The primary swell is predicted to be 1.2m and 16s period with a secondary swell of 0.7m and 8s. 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 1.2m 16s and forecast to arrive on Thursday (Sep 10) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Sep 12) at 8PM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Thu 10th Sep) | 4ft (1.2m) 16s |
| Best Surf | 5PM (Thu 10th Sep) | 4ft (1.2m) 16s |
| Most Powerful | 2PM (Thu 10th Sep) | 4ft (1.2m) 16s |
Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.
The Lowdown
Alright, mates, let’s talk it out in feet and miles per hour.
The Rock-Costa Azul is a reef break that likes that south swell, and right now the water is sitting at 88°F, which is a solid 5°F warmer than normal for this time of year. Feels like a hot tub.
Thursday morning starts a bit messy with an onshore wind, but Thursday afternoon cleans up. You’ve got 4ft of SW groundswell, period at 16 seconds, and a cross-off wind at 6 mph. The combined energy is moderate at 823. Not the best, but a warm-up.
Friday morning, 11th September, is the first real gem. Glassy, absolutely no wind, 4ft of SW swell at 15 seconds. Energy is 525. The reef is going to be clean and lined up. Crowds are likely, but it’s worth it.
Saturday and Sunday mornings are glassy with 3ft and 2ft of swell respectively. The wind is dead calm on Sunday. It’s small but perfect.
Now, the big one. Sunday, 20th September. The morning is glassy, with 4ft of SW groundswell, a massive 19-second period, and the combined energy is strong at 1020. This is for the experienced surfers only. The reef will handle that long period beautifully. This is the standout session of the entire 16-day window, but it’s a week and a half away, so stay tuned.
From Monday 21st through Thursday 24th, it’s a dream run. Every morning is glassy, with 4ft of swell, periods between 14 and 17 seconds. The energy stays moderate to strong. Perfect for the advanced crew.
The final Friday, 25th September, has a rough morning with onshore wind, but the afternoon bounces back with 3ft of swell at 19 seconds, clean cross-off wind at 6 mph, and energy at 745. A solid finish.
The call: 20th September morning. Glassy, powerful, long-period groundswell. For the advanced surfers, that’s the one. Expect the crowd to be there.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Sat night. Warm (max 32°C on Thu morning, min 27°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 31°C on Sun morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 18 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 739 | 729 | 612 | 489 | 412 | 362 | 293 | 264 | 180 | 175 | 175 | 154 | 312 | 249 | 310 | 201 | 258 | 627 | 481 | 422 | 515 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | off | glassy | cross-off | off | glassy | off | off | glassy | cross-off | off | glassy | cross-off | off | cross-on | cross-off | cross-off | glassy | cross-off | off |
High Tide | 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 | 9:57AM1.60m | 10:46PM1.08m | 10:13AM1.52m | 11:15PM0.92m | |||||||
Low Tide | 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 | 4:48PM0.46m | 3:37AM0.74m | 5:25PM0.56m | 3:20AM0.79m | |||||||
 |  |  |  | | | | | | |  | | | |  | | | | | | | |
 | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — |
mm | — | 2 | 1 | 1 | 3 | 3 | 2 | 1 | 4 | — | — | 1 | — | 1 | — | — | 1 | 2 | — | 1 | 2 |
Temp °C | 32 | 31 | 29 | 31 | 31 | 29 | 31 | 31 | 28 | 31 | 31 | 28 | 31 | 31 | 27 | 31 | 31 | 29 | 31 | 30 | 28 |
Feels °C | 35 | 34 | 32 | 35 | 34 | 32 | 35 | 36 | 31 | 36 | 35 | 31 | 35 | 33 | 30 | 35 | 34 | 32 | 36 | 35 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 12 | SW 18 | SW 18 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
| kJ | 739 | 729 | 612 | 489 | 412 | 362 | 293 | 264 | 180 | 175 | 175 | 103 | 312 | 249 | 310 | 201 | 258 | 627 | 481 | 422 | 515 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 7 | S 7 | S 8 | W 5 | SE 7 | S 8 | W 4 | S 8 | SW 18 | S 9 | S 9 | S 9 | SSW 18 | SSW 18 | SSE 9 | SSE 9 | SSE 9 | SSE 9 |
| kJ | 64 | 61 | 57 | 36 | 25 | 44 | 16 | 13 | 21 | 9 | 32 | 154 | 38 | 56 | 59 | 180 | 246 | 44 | 45 | 44 | 44 |
Swell 3 Height (m) Direction Period (s) | W 8 | W 8 | W 12 | WNW 7 | W 11 | W 18 | S 8 | S 8 | W 12 | S 8 | SW 19 | S 9 | SW 12 | SW 12 | SW 12 | S 9 | SSE 9 | SW 23 | SSW 12 | SW 23 | SW 21 |
| kJ | 20 | 19 | 25 | 10 | 22 | 6 | 21 | 21 | 26 | 31 | 133 | 36 | 71 | 71 | 69 | 39 | 45 | 86 | 55 | 140 | 224 |
Wind waves Height (m) Direction Period (s) | — | — | WNW 8 | — | W 3 | WNW 4 | WNW 5 | WNW 4 | WNW 4 | WNW 5 | W 4 | W 3 | WNW 4 | WNW 6 | WNW 6 | NW 6 | WNW 7 | W 7 | WSW 6 | W 3 | WNW 4 |
| kJ | — | — | 19 | — | 5 | 14 | 28 | 19 | 20 | 19 | 9 | 5 | 2 | 7 | 8 | 10 | 4 | 24 | 13 | 7 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 69 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Baja Sur | |||||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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