Surf Forecasts:
The Rock-Costa Azul surf forecast from 20 Aug 2026:
- Best quality surf: Saturday 22 Aug, 11PM (local time) - 2.5ft (0.8m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 11PM (local time) - 3ft (0.9m), 16s period, SW swell with 421 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 8PM (local time) - 2.5ft (0.8m), 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 Thursday (Aug 20) at 8PM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.6m and 10s. 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 0.9m 16s and forecast to arrive on Tuesday (Aug 25) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Saturday (Aug 22) at 8AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 20th Aug) | 2.5ft (0.8m) 13s |
| Best Surf | 11PM (Sat 22nd Aug) | 2.5ft (0.8m) 14s |
| Most Powerful | 11PM (Tue 25th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.
The Lowdown
G’day, Rusty here. Looking at the next 16 days for The Rock-Costa Azul, a consistent reef break that’s advanced and often crowded. We’ve got a pretty drawn-out, slow-burn kind of forecast. Nothing much is happening for the first week and a half; lots of marginal or poor conditions, then the end of the window lights up with some serious energy, but you’ll need to be an experienced surfer to handle it.
For the first few days – Thursday the 20th right through to late August – it’s tough. Swell is small, mostly around 2.0 ft to 3.0 ft, and the wind is all over the place. Thursday morning has a light onshore breeze, and while Thursday afternoon cleans up a bit with a cross-offshore from the WSW, the wave comment is “marginal.” Not worth paddling out. Friday the 21st afternoon shows a bit more promise: clean surf with a 2.3 ft SSW swell and a light offshore from the WNW, but it’s just too small to get excited about. Saturday the 22nd and Sunday the 23rd are similar – small, clean windows but nothing that gets the heart rate up. The combined wave energy sits between 290 and 468, which is weak to moderate.
Around Monday the 24th afternoon, things start to nudge up. The swell is still only 2.3 ft from the SW, but the combined energy jumps to 646 (moderate) and the wave comment says “very good surf conditions.” The wind is a clean cross-offshore from the WSW, so if you’re desperate for a surf, that might be your best early gamble. Still, it’s small.
From Tuesday the 25th to Thursday the 27th, we’re in the doldrums again – mostly onshore winds, small swell, and poor to marginal conditions. The energy is moderate (428 to 710), but the wind just won’t cooperate. The bite-sized 2.0 ft to 3.0 ft SSW swell is not worth the drive.
Friday the 28th finally shows some size. The Saturday morning of the 29th is the standout. The swell hits 5.2 ft from the SSW with a 16-second period, combined wave energy at a meaty 1420 (strong). The wind is glassy – absolutely glassy – and the wave comment says “excellent surf conditions for experienced surfers.” That’s the call. The Rock (Costa Azul) will be taking that long-period SSW groundswell cleanly. It’s a reef break, so the long period (over 15 seconds) will mean longer lulls between sets, but the shape should be proper. This is the best on offer, hands down. Saturday afternoon stays clean and glassy with 4.6 ft SSW swell. Note that 5.2 ft is getting up there for beginners, but for experienced surfers, it’s prime.
Sunday the 30th and Monday the 31st fade back to small, marginal conditions – 3.3 ft to 4.0 ft, light winds but cross or onshore. Not worth it.
Then from Tuesday the 1st of September onwards, the wind switches bad. Strong onshore breezes (22 to 28 mph from the ESE and SE), and the swell starts building but it’s messy. By Wednesday the 3rd and Thursday the 4th of September, the swell is 6.6 ft to 7.2 ft from the S, with combined energy over 1600, but the wind is cross-onshore to onshore and the wave comments all say “poor” or “marginal.” This is kite-surfing territory, not paddle surfing. The setup at The Rock-Costa Azul is a reef, so strong onshore wind will just make it a washing machine. Avoid.
So the quick summary: ignore most of the first 10 days. The standout is Saturday the 29th of August, morning session. Clean, glassy, 5.2 ft SSW groundswell with good period. Be there early. After that, it goes to windblown junk.
Short Range ForecastMostly dry. Warm (max 33°C on Thu morning, min 28°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Mon afternoon. Warm (max 32°C on Mon morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 18 | SSW 14 | SW 17 | SW 17 | SSW 12 | SSW 11 | SW 16 | SW 16 | SW 11 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||||
236 | 225 | 151 | 111 | 151 | 217 | 288 | 280 | 297 | 289 | 214 | 273 | 288 | 291 | 336 | 286 | 302 | 367 | 194 | 171 | 169 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-off | cross | off | off | on | cross-off | cross-off | cross | cross-off | off | cross | cross-off | off | on | cross-on | off | on | cross | off |
High Tide | 12:18PM1.32m | 2:45PM1.26m | 9:01AM1.15m | 4:50PM1.32m | 8:09AM1.17m | 5:48PM1.43m | 8:03AM1.22m | 6:28PM1.54m | 8:10AM1.29m | 7:03PM1.63m | 8:22AM1.35m | 7:34PM1.69m | |||||||||
Low Tide | 11:51PM0.61m | 00:27AM0.49m | 11:39AM1.12m | 00:52AM0.37m | 12:16PM1.02m | 1:15AM0.28m | 12:42PM0.91m | 1:36AM0.20m | 1:08PM0.80m | 1:57AM0.16m | 1:36PM0.69m | 2:18AM0.14m | |||||||||
5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | — | 7 | 1 | 1 | — |
Temp °C | 33 | 32 | 30 | 32 | 33 | 31 | 32 | 32 | 28 | 31 | 31 | 29 | 32 | 31 | 28 | 31 | 30 | 28 | 30 | 30 | 28 |
Feels °C | 37 | 36 | 33 | 36 | 36 | 35 | 35 | 35 | 31 | 34 | 32 | 32 | 36 | 34 | 31 | 33 | 32 | 32 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | SSE 9 | SSW 13 | SSE 9 | SSW 16 | SSE 10 | SSW 14 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSW 12 | SSW 11 | SSW 11 | SW 10 | SW 11 | SW 10 | SW 9 |
236 | 225 | 151 | 68 | 151 | 92 | 288 | 129 | 297 | 140 | 186 | 264 | 188 | 197 | 336 | 286 | 251 | 212 | 194 | 156 | 97 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | S 10 | SSE 9 | SSW 13 | SSE 9 | SSW 14 | SSE 10 | SSW 16 | SSE 9 | SSW 14 | SSW 13 | SSW 14 | SSW 12 | SW 17 | SSE 9 | SSE 10 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 |
54 | 68 | 69 | 111 | 68 | 217 | 105 | 280 | 121 | 289 | 201 | 273 | 152 | 291 | 121 | 83 | 302 | 367 | 178 | 171 | 169 | |
Swell 3 Height (m) Direction Period (s) | WNW 7 | SW 19 | SW 18 | W 4 | SW 18 | SW 17 | W 6 | SW 19 | SW 19 | SW 18 | SSW 18 | SSW 18 | SW 17 | SSW 12 | SW 17 | SW 16 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | WSW 11 |
9 | 92 | 83 | 10 | 80 | 76 | 15 | 59 | 183 | 155 | 214 | 214 | 288 | 158 | 281 | 206 | 83 | 61 | 56 | 55 | 84 | |
Wind waves Height (m) Direction Period (s) | — | WNW 9 | WNW 4 | NW 5 | W 4 | WNW 4 | — | W 5 | W 3 | W 6 | W 3 | WNW 3 | WNW 4 | W 3 | WNW 4 | — | — | — | — | — | — |
— | 15 | 8 | 22 | 10 | 12 | — | 14 | 4 | 11 | 7 | 6 | 8 | 5 | 7 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 8 | 0 | 0 | 1 | 0 | 0 | 426 | 10 | 0 | 426 | 316 | 0 | 8 | 0 | 0 | 33 | 33 | 0 | 33 | 10 | 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.











