The Rock-Costa Azul Surf Break

Lat Long: 22.96° N 109.80° W

The Rock-Costa Azul Surf Forecast and Surf Report

Issued: 4 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Rock-Costa Azul sea temperature is
31.7° C
3.8° 

The Rock-Costa Azul surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Rock-Costa Azul surf forecast from 19 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 2AM (local time) - 3.5ft (1.1m), 16s period, SSW swell with offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 2AM (local time) - 3.5ft (1.1m), 16s period, SSW swell with 604 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 3.5ft (1.1m), 16s 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 Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.4m and 8s. 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 1.1m 16s and forecast to arrive on Wednesday (Aug 19) at 2AM. 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 5s period and expected on Friday (Aug 21) at 11AM.

Wave TypeTime (MST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 19th Aug)3.5ft (1.1m) 16s
Best Surf 2AM (Wed 19th Aug)3.5ft (1.1m) 16s
Most Powerful 2AM (Wed 19th Aug)3.5ft (1.1m) 16s

Table - best surf conditions forecast for The Rock-Costa Azul over the next 16 days.


The Lowdown

Alright, surfers, Rusty here. Let’s cut through the forecast noise and get straight to what matters for The Rock-Costa Azul. We’ve got a mixed bag over the next couple of weeks, but there are definitely some windows where this place is going to light up.

The setup is a consistent, exposed reef break that loves a good south swell. Water temps are running a very unusual 7° warmer than normal for this time of year at 89°, so ditch the boots and maybe even the spring suit. The early window is a bit of a tease, with small, clean but gutless waves from the 18th through the 21st. We're talking knee-to-waist high stuff in the 2ft to 4ft range on a long-period SSW swell. The energy is weak to moderate, with readings like 604 and 300 on the combined energy scale. It's surfable, but you’ll be fighting for every ounce of push. The winds are mostly light and cross-offshore, which keeps the surface clean, but the lack of size and power is a real bummer.

We hit a proper lull from the 22nd through the 26th. The swell drops off, and the energy readings get pretty weak, down to 278 at one point. There are still waves, but it's a real struggle to find anything with any push. One morning on the 22nd is a total write-off with onshore ESE winds. It’s the kind of stretch where you’d be better off getting the gear ready or checking the cams, because the ocean isn’t giving us anything to work with.

Now, here’s where things start to get interesting. The 27th of August sees the swell start to refill, but the real standout is the 28th. By Friday afternoon, we've got a proper SSW groundswell building to 5ft with a 18-second period. The combined energy jumps to a strong 1465. This is the first day with some real muscle behind it. Cross-offshore winds from the WSW will keep the faces clean and lined up. This is an advanced reef, so this is going to be a proper session for those who know what they're doing. This is the best on offer in the whole window.

The weekend of the 29th and 30th keeps that energy pumping. It’s still solid, with 6ft SSW swell and energy readings around 1381 and 1279 on Saturday. However, the swell direction holds and the quality remains high. Sunday the 30th offers a moment of pure magic: light offshore winds and a glassy, clean 5ft SSW swell with an 835 energy reading. It's still a quality pick, but it’s not quite as powerful as Friday afternoon.

The wave heights tail off into the first days of September, dropping back to the 3ft range. There's a blip on the 2nd of September with a 7ft swell, but it's coming from the SE with a shorter 11-second period and is crossed up by moderate winds. That could get messy fast on a reef and is a pass for me. That's really a day for the experts only, and even then, the conditions will be tricky.

So, get after it on the 28th of August. That’s your day. The 30th is the backup call for a clean, glassy session with a little less size. The rest is just waiting for that swell to arrive.

Rusty, out.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue night. Warm (max 33°C on Thu morning, min 27°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Sun night. Warm (max 32°C on Fri afternoon, min 27°C on Sun night). Wind will be generally light.

Tue
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
1
1
2
1
2
2
1
2
2
0
1
3
2
3
3
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SSW
15
1.1
SSW
16
0.9
SSW
14
0.9
SSW
14
0.9
SSW
14
0.8
SSW
14
0.8
SSW
13
0.7
SSW
13
0.6
SSW
13
0.7
SSW
13
0.8
SSW
14
0.8
SSW
16
0.8
SSW
16
0.9
SSW
14
0.9
SSW
14
1.1
SSE
10
0.9
SSW
14
0.7
SW
17
0.7
SW
17
0.7
SW
17
Wave Graph
Metric surfscale
Energy kJ
544
604
325
321
316
236
225
151
111
151
217
288
280
297
289
250
273
288
295
281
Wind (km/h)
20
WSW
10
W
10
S
15
WSW
15
WNW
10
ESE
15
WSW
15
NW
5
S
15
WSW
5
NNW
15
ESE
10
SSW
5
WSW
10
SSE
10
SW
15
W
10
SW
15
WSW
15
WNW
Wind State
cross-off
off
cross
cross-off
off
on
cross-off
off
glassy
cross-off
cross-off
on
cross
glassy
cross-on
cross-off
off
cross-off
cross-off
off
High Tide
11:56PM0.92m
11:45AM1.39m
12:18PM1.32m
2:45PM1.26m
9:01AM1.15m
4:50PM1.32m
8:09AM1.17m
5:48PM1.43m
8:03AM1.22m
6:28PM1.54m
Low Tide
6:26PM0.68m
4:17AM0.78m
8:35PM0.73m
11:51PM0.61m
00:27AM0.49m
11:39AM1.12m
00:52AM0.37m
12:16PM1.02m
1:15AM0.28m
12:42PM0.91m
1:36AM0.20m
part cloud
thunderstorm
part cloud
clear
thunderstorm
clear
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:47
6:46
6:45
6:45
6:45
6:44
 mm
1
1
1
2
6
Temp °C
32
29
31
31
29
33
31
28
32
32
30
32
31
29
31
31
28
31
32
29
Feels °C
35
32
35
33
33
37
35
30
36
35
32
35
33
34
35
35
32
34
35
32
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  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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