
Surf Forecasts:
The Rock-Costa Azul surf forecast from 17 Jul 2026:
- Best quality surf: Saturday 18 Jul, 11PM (local time) - 5ft (1.6m), 11s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 21 Jul, 8PM (local time) - 8ft (2.4m), 13s period, SSW swell with 1,949 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 5AM (local time) - 1.5ft (0.5m), 19s 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 Friday (Jul 17) at 5AM. The primary swell is predicted to be 0.5m and 19s period with a secondary swell of 0.9m and 9s. Another secondary swell of 0.5m and 11s is also forecast. 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 2.4m 13s and forecast to arrive on Tuesday (Jul 21) at 8PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Friday (Jul 24) at 2AM.
| Wave Type | Time (MST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 17th Jul) | 1.5ft (0.5m) 19s |
| Best Surf | 11PM (Sat 18th Jul) | 5ft (1.6m) 11s |
| Most Powerful | 8PM (Tue 21st Jul) | 8ft (2.4m) 13s |
Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.
The Lowdown
Alright, let me look you straight in the eye and tell you about The Rock-Costa Azul. This is a reef break, and it's got some serious pulse running through it over the next couple of weeks, but you gotta be switched on. The swell is lining up from the south, which is exactly what this spot wants to see, and there are a couple of sessions that will have your heart racing.
Starting off on Friday the 17th of July, the morning is glassy with a light 4ft southerly swell pushing in at 11 seconds. The wind is nearly nothing, just a slight air from the SSE, so it'll be super clean. The wave energy is moderate at 388, but the conditions are prime. Friday afternoon picks up a bit with a 4ft swell from the SSW at 10 seconds, but the wind swings to a light cross-offshore from the WSW. It's still looking really good.
Now, we hit a bit of a lull through Saturday the 18th and Sunday the 19th. The wind turns onshore and cross-onshore, and the swell gets messy. Saturday morning is basically a write-off with onshore wind and only 4ft. Sunday has that long 17-second period swell coming in, but it’s hitting hard with a cross-onshore breeze, so it's going to be choppy and tricky.
Then things get interesting. Monday the 20th of July afternoon is your first true standout. There's a risk of thunderstorms in the air, but the wind goes clean offshore from the WNW at just 6 mph. The swell is a solid 4ft from the SSW with a 16-second period – that's proper groundswell. The combined energy jumps to 1249, which is strong, and it's delivering excellent conditions for experienced surfers. This reef is going to be humming.
Tuesday the 21st of July afternoon is another top-tier session. The swell builds to 8ft from the SSW at 13 seconds. That’s getting big – definitely too much for beginners, but for the crew who know what they're doing, it's a riot. The wind is a light cross-offshore from the SW at 6 mph, and the wave energy is cranking at 2057. Clean, powerful, and for the experts only.
There's a solid run of surf through the week, but the best of the best comes in on the weekend. Saturday the 25th of July morning is absolutely dreamy – glassy conditions with a slight air from the SE, and a 4ft swell from the SW with a very long 20-second period. The energy is huge at 1860. This long-period groundswell will wrap beautifully around the reef. Later that afternoon, it's still excellent: 5ft from the SW at 19 seconds, cross-offshore wind from the WSW, and a massive 2591 in the energy department. That is the most powerful swell of the whole forecast. This is the session to circle on your calendar.
Sunday the 26th of July afternoon holds up with 5ft and clean cross-offshore wind, but the energy drops a touch. From there, the swell hangs around the 4ft to 5ft mark for the next few days, but the wind tends to be cross or cross-onshore more often, so it won't be as pristine. The standout remains that Saturday the 25th. After the 30th of July, the swell drops hard to under 3ft, and the energy fades below 600. It looks like a quiet end to the run, though the morning of Saturday the 1st of August has a small, glassy 3ft SSW swell with 13 seconds – a nice little clean finale if you've got a longboard.
Water temperature is sitting pretty average for this time of year, no major anomalies to report. The Rock is an exposed reef, and it does get crowded often, so get there early for those clean windows.
This is Rusty, signing off.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 31°C on Fri morning, min 28°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 31°C on Mon afternoon, min 28°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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 19 | S 11 | SSW 10 | SW 18 | SSW 10 | SW 13 | SW 11 | SW 17 | SSW 17 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||
181 | 269 | 270 | 444 | 263 | 791 | 580 | 671 | 368 | 739 | 458 | 832 | 740 | 1680 | 1905 | 1363 | 1026 | 895 | 594 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross-off | cross-off | on | cross-on | cross-off | cross-on | cross | off | cross | off | cross-off | on | cross-off | off | on | cross | cross-off |
High Tide | 9:47PM1.69m | 11:11AM1.37m | 10:28PM1.51m | 11:44AM1.38m | 11:11PM1.32m | 12:18PM1.38m | 11:59PM1.12m | 12:54PM1.37m | 1:14AM0.95m | 1:39PM1.36m | 2:42PM1.35m | ||||||||
Low Tide | 4:40AM0.18m | 4:34PM0.73m | 5:09AM0.35m | 5:26PM0.75m | 5:32AM0.52m | 6:29PM0.77m | 5:48AM0.67m | 8:02PM0.77m | 5:51AM0.80m | 10:21PM0.70m | 11:43PM0.58m | ||||||||
— | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | |
— | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | |
mm | 1 | — | — | 1 | — | — | 1 | — | — | — | — | 5 | — | — | — | — | — | — | — |
Temp °C | 29 | 31 | 31 | 31 | 31 | 31 | 29 | 30 | 30 | 29 | 30 | 31 | 29 | 31 | 30 | 30 | 31 | 31 | 30 |
Feels °C | 33 | 35 | 34 | 33 | 32 | 33 | 32 | 32 | 31 | 32 | 33 | 34 | 32 | 33 | 32 | 34 | 33 | 33 | 34 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 11 | SSW 10 | S 10 | SSW 10 | SW 13 | SW 11 | SW 10 | SW 10 | SW 16 | SSW 16 | SSW 16 | S 11 | SSW 14 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 |
166 | 269 | 270 | 235 | 263 | 791 | 558 | 324 | 279 | 739 | 458 | 832 | 482 | 1680 | 1905 | 1363 | 1026 | 895 | 594 | |
Swell 2 Height (m) Direction Period (s) | SW 19 | S 14 | SW 17 | SW 18 | SW 13 | SW 16 | SW 17 | SW 17 | SSW 17 | SW 9 | SSE 11 | S 11 | SSW 15 | S 14 | S 14 | SSE 13 | SSE 9 | SSE 8 | SSW 14 |
181 | 64 | 241 | 444 | 136 | 124 | 580 | 671 | 368 | 135 | 194 | 345 | 740 | 107 | 132 | 239 | 58 | 38 | 125 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SW 15 | S 14 | S 13 | S 13 | S 13 | S 12 | S 12 | SW 14 | WSW 11 | SW 9 | SW 8 | WSW 8 | W 8 | W 8 | WNW 14 | S 13 | SSE 13 | S 12 |
49 | 55 | 93 | 85 | 85 | 84 | 73 | 106 | 214 | 78 | 115 | 72 | 53 | 30 | 20 | 41 | 87 | 133 | 78 | |
Wind waves Height (m) Direction Period (s) | WNW 3 | WNW 4 | WNW 4 | WNW 4 | — | — | — | — | — | — | — | — | NNW 8 | — | — | WNW 8 | — | — | WNW 3 |
4 | 11 | 5 | 5 | — | — | — | — | — | — | — | — | 7 | — | — | 22 | — | — | 9 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 138 | 158 | 0 | 416 | 48 | 0 | 426 | 0 | 0 | 10 | 0 | 0 | 33 | 48 | 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.










