Surf Forecasts:
The Rock-Costa Azul surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 16 Aug, 5PM (local time) - 4ft (1.2m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 5PM (local time) - 4ft (1.2m), 16s period, SSW swell with 674 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 5PM (local time) - 4ft (1.2m), 14s 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 Sunday (Aug 16) at 5PM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.5m 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 Monday (Aug 17) at 5PM. Winds are predicted to be cross-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 Saturday (Aug 22) at 2AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 16th Aug) | 4ft (1.2m) 14s |
| Best Surf | 5PM (Sun 16th Aug) | 4ft (1.2m) 14s |
| Most Powerful | 5PM (Mon 17th Aug) | 4ft (1.2m) 16s |
Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what’s heading our way for The Rock-Costa Azul.
Alright, so the first week is a bit of a mixed bag, but we’ve got some solid windows to work with. The water is sitting at a very warm 89°F, which is *much* warmer than normal for this time of year – feels more like a tropical bath than the usual Costa Azul.
The first real chance to wet a line comes on Sunday, the 16th of August. The morning is a bit ordinary with a light cross-onshore breeze and only about 4ft of SSW swell, but the energy is moderate at 603. The real standout is the afternoon. We get a clean cross-offshore wind from the SW at 6 mph, and the same 4ft SSW swell cleans right up. Expect very good, workable waves. This is a reef setup, so it’s for advanced crew only, and crowds are likely.
Monday the 17th is much the same vibe. Mornings are a write-off with that light cross-onshore, but the afternoon cranks again. A 4ft SSW swell with a 16-second period – that’s proper groundswell, giving nice shape and energy (697). The wind goes cross-offshore from the SW at 9 mph. Clean and lined up. This is the best surf of the first few days.
Tuesday the 18th and Wednesday the 19th see the swell drop off a bit to 3ft and 3ft. The afternoons are still clean thanks to the cross-off wind, but the size is small. Thursday the 20th is more of the same – small but clean in the afternoon.
The weekend of the 22nd and 23rd is mostly a bust with onshore winds and a drop in quality. Don’t bother.
After that, things get interesting again. Hold on for Monday the 31st of August. The morning bumps up to 6ft from the S, but it’s a bit short period at 10 seconds and cross-onshore. The real highlight is Monday afternoon: 6ft S swell, 9-second period, but with a light cross-offshore wind from the WSW. The combined energy is 774 – that’s solid. The waves will be clean and fun, and this is easily the best looking session in the entire run. It’s a reef, so still for advanced surfers, but the quality looks very good.
To sum it up: The absolute standout is Monday afternoon, the 31st of August. The afternoon sessions on Sunday the 16th, Monday the 17th, and Tuesday the 18th are also very good, but for size and cleanliness, the 31st takes the cake.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue night. Warm (max 33°C on Sun morning, min 28°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Warm (max 33°C on Thu morning, min 28°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 14 | SW 14 | SW 14 | SSW 16 | SSW 13 | SSW 14 | SSW 15 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 16 | SSW 13 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 561 | 561 | 476 | 482 | 674 | 229 | 437 | 544 | 604 | 325 | 321 | 316 | 236 | 225 | 151 | 111 | 151 | 217 | 288 | 154 | 297 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | off | cross-on | cross-off | off | cross-on | cross-off | off | cross-on | cross | cross |
High Tide | 10:39AM1.53m | 10:43PM1.28m | 11:00AM1.50m | 11:16PM1.10m | 11:22AM1.46m | 11:56PM0.92m | 11:45AM1.39m | 12:18PM1.32m | 2:45PM1.26m | 9:01AM1.15m | 4:50PM1.32m | ||||||||||
Low Tide | 4:51PM0.55m | 4:29AM0.57m | 5:33PM0.61m | 4:33AM0.69m | 6:26PM0.68m | 4:17AM0.78m | 8:35PM0.73m | 11:51PM0.61m | 00:27AM0.49m | 11:39AM1.12m | 00:52AM0.37m | ||||||||||
 | |  | | |  |  | | | | | | |  | | | | | | | | |
 | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — |
mm | — | — | — | — | — | 2 | — | — | 3 | — | — | 1 | — | 1 | 1 | — | — | — | — | 1 | — |
Temp °C | 33 | 32 | 30 | 33 | 32 | 30 | 32 | 32 | 29 | 32 | 32 | 28 | 33 | 32 | 29 | 33 | 32 | 29 | 32 | 32 | 29 |
Feels °C | 37 | 36 | 34 | 37 | 36 | 34 | 35 | 35 | 33 | 36 | 35 | 31 | 37 | 35 | 32 | 36 | 36 | 31 | 35 | 35 | 34 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SW 14 | SW 14 | SSW 16 | SSW 13 | SSW 14 | SSW 15 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSE 9 | SSE 10 | SSW 14 | SSE 10 | SSE 9 | SSE 9 |
| kJ | 561 | 561 | 476 | 482 | 674 | 229 | 437 | 544 | 604 | 325 | 321 | 316 | 236 | 225 | 151 | 69 | 100 | 217 | 129 | 121 | 119 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 8 | SSE 8 | WNW 4 | SE 8 | SSW 17 | WNW 7 | SSE 8 | SE 7 | SSE 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSW 13 | SSW 13 | S 10 | SSW 16 | SSW 13 | SSW 14 |
| kJ | 42 | 40 | 26 | 9 | 17 | 190 | 15 | 27 | 27 | 61 | 59 | 74 | 74 | 72 | 72 | 111 | 151 | 96 | 288 | 154 | 297 |
Swell 3 Height (m) Direction Period (s) | W 6 | W 11 | SSE 13 | SE 8 | S 9 | W 7 | SE 8 | S 10 | S 9 | WNW 7 | WNW 7 | SW 20 | WNW 7 | SW 19 | SW 18 | SSW 16 | SW 18 | SW 17 | W 5 | WNW 5 | SW 19 |
| kJ | 17 | 3 | 17 | 17 | 6 | 25 | 17 | 9 | 27 | 15 | 4 | 61 | 9 | 92 | 83 | 100 | 80 | 75 | 12 | 8 | 183 |
Wind waves Height (m) Direction Period (s) | — | W 6 | WNW 4 | WNW 6 | W 7 | — | W 7 | WNW 7 | WNW 7 | — | W 3 | WNW 3 | WNW 7 | W 3 | WNW 4 | — | WNW 3 | WNW 4 | — | — | WNW 5 |
| kJ | — | 16 | 11 | 46 | 22 | — | 14 | 15 | 15 | — | 6 | 5 | 32 | 3 | 15 | — | 3 | 26 | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 2 | 0 | 0 | 13 | 0 | 0 | 10 | 455 | 0 | 10 | 0 | 0 | 8 | 0 | 0 | 13 | 8 | 69 |
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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