
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, 5AM (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 5AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.6m and 12s. 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 0.9m 4s period and expected on Monday (Sep 21) at 2AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (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
Gather 'round, folks. Rusty here. Let's talk about what's ahead for The Rock-Costa Azul.
The next few weeks are all about The Rock-Costa Azul, a reef break that’s consistent and handles a good southerly swell. We’ve got a run of small but clean conditions coming, with a real standout day mid-week that's got my pulse going. Water temps are running pretty normal for this time of year, nothing out of the ordinary.
It all kicks off on Monday, 14th September. Morning glass-off, wind from the south at just 3 mph, air still, waves around 0.7m from the southwest with a long period of 18 seconds. It’s a groundswell, so sets will have some punch. Combined wave energy is 408, which is moderate, but the conditions will be about as smooth as it gets. Perfect for a quiet session, though the swell is small.
Monday afternoon sees the wind shift to a west-southwest cross-off at 9 mph, waves drop a hair to 0.6m but the energy is similar (421). Clean enough, but the morning was the pick of that day.
Tuesday the 15th is a bit messy with a cross-on wind, not ideal. Wednesday morning, 16th September, is still cross-on with only 1.0m swell, but come Wednesday afternoon, we get a decent bump. The south-southwest swell pushes to 1.1m, period 15 seconds, combined energy at a solid 698 (moderate), and the wind turns cross-off at 9 mph from the west-southwest. Expect very good surf conditions.
But the real standout? Thursday, 17th September. Thursday afternoon is where it’s at. The swell is 1.0m from the south-southwest, 14-second period, energy at 721. The wind goes light west-southwest at 3 mph – that’s cross-off and almost glassy. The call is for “very good surf conditions.” This is clean, shoulder-high reef waves with a long-period push. It won’t be huge, but the quality will be silky. It's an advanced break, so if you know the take-off, this is the session.
Friday the 18th and Saturday the 19th keep the small train rolling – 0.7m to 0.9m, mostly clean with that west-southwest cross-off wind. Good for a longboard or a fun mid-length.
Now, into the second week, we see a real uptick. Sunday morning, 20th September, things start to look better. The swell gets to 1.1m from the southwest, 17-second period, and combined energy is 793 (moderate). That west-southwest wind at 9 mph is cross-off and clean. Good, smooth lines.
Then Monday morning, 21st September, we have the best swell of the run so far. A solid 1.2m southwest groundswell at 17 seconds, combined energy hitting 933. The wind is light from the southwest at 3 mph, cross-off, and the forecast says "expect very good surf conditions." That's a proper waist-to-chest high day, clean, with plenty of push.
Monday afternoon stays good with a clean offshore wind from the west, though there is a risk of thunderstorms. The rest of the week holds 1.0m to 1.1m swells, with Tuesday afternoon the 22nd offering a clean offshore (west, 9 mph) and good conditions.
The very end of the period, on Tuesday morning, 29th September, shows a pulse of bigger swell – 1.8m from the southeast at 16 seconds. Combined energy is 1979, which is strong. But the wind is a light cross-on from the south-southeast, 3 mph. That’s a lot of juice, but the direction isn’t ideal for the break's optimum. For expert surfers only if it cleans up, but it's a long way off and uncertain.
Crowds are “often” at The Rock, so on the standout days (Thursday afternoon the 17th, Monday morning the 21st), expect company, but the quality should make it worth it.
So, to wrap it up: the first week is small but has one glassy gem Thursday afternoon. The second week has more size and a top contender Monday morning.
Keep your eyes on Thursday and Monday sessions, and I'll see you out there.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Warm (max 31°C on Mon morning, min 27°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 33°C on Sat afternoon, min 28°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 | 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 |
Wave Graph | |||||||||||||||||||
154 | 312 | 249 | 310 | 249 | 322 | 627 | 481 | 505 | 515 | 472 | 367 | 388 | 450 | 380 | 465 | 455 | 455 | 621 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross-off | off | cross-on | cross-off | off | cross-on | cross-off | off | cross | cross-off | off | cross-on | cross-off | off | cross | cross-off | off |
High Tide | 9:49PM1.39m | 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 | |||||||||
Low Tide | 3:26AM0.55m | 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 | |||||||||
— | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — | |
mm | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 31 | 31 | 28 | 31 | 30 | 28 | 31 | 31 | 28 | 32 | 32 | 30 | 32 | 32 | 29 | 32 | 33 | 28 |
Feels °C | 33 | 36 | 35 | 32 | 35 | 33 | 32 | 35 | 34 | 31 | 36 | 35 | 34 | 36 | 35 | 31 | 35 | 35 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SW 18 | SW 18 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 13 | SSW 13 | SW 18 | SW 18 | SW 18 | SW 18 |
103 | 312 | 249 | 310 | 201 | 322 | 627 | 481 | 505 | 515 | 472 | 367 | 273 | 249 | 215 | 465 | 455 | 455 | 621 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 12 | S 9 | S 9 | SSW 18 | SSW 18 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SW 20 | SW 19 | SW 19 | SSW 12 | SSW 12 | SSW 12 | SSW 12 |
154 | 71 | 61 | 42 | 249 | 246 | 61 | 43 | 43 | 44 | 62 | 57 | 388 | 450 | 380 | 178 | 131 | 169 | 117 | |
Swell 3 Height (m) Direction Period (s) | S 8 | S 9 | SSW 12 | SW 12 | S 9 | SSE 9 | SW 6 | SSW 12 | SW 23 | SW 21 | SSW 21 | SSW 21 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 |
35 | 25 | 96 | 68 | 40 | 62 | 6 | 79 | 140 | 224 | 305 | 297 | 52 | 62 | 80 | 68 | 43 | 39 | 38 | |
Wind waves Height (m) Direction Period (s) | WNW 4 | — | WSW 7 | — | — | — | — | — | SW 6 | NW 3 | — | WNW 9 | WNW 4 | WNW 4 | WNW 5 | WNW 4 | WNW 7 | W 4 | WNW 7 |
7 | — | 15 | — | — | — | — | — | 10 | 5 | — | 8 | 7 | 12 | 15 | 7 | 34 | 12 | 29 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 455 | 0 | 8 | 4 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 8 | 507 | 0 |
Best forecast wave conditions in Baja Sur | |||||||||||||||||||
Best forecast wave conditions in Mexico | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










