The Rock-Costa Azul Surf Break

Lat Long: 22.96° N 109.80° W

The Rock-Costa Azul Surf Forecast and Surf Report

Issued: 10 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Rock-Costa Azul sea temperature is
31.5° C
3.6° 

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 21 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: Wednesday 26 Aug, 5AM (local time) - 4.5ft (1.3m), 13s period, SW swell with 591 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 2.5ft (0.7m), 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 Friday (Aug 21) at 8AM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.6m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Rock-Costa Azul in the next 16 days are 1.3m 13s and forecast to arrive on Wednesday (Aug 26) at 5AM. 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 Friday (Aug 21) at 8AM.

Wave TypeTime (MST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 21st Aug)2.5ft (0.7m) 13s
Best Surf11PM (Sat 22nd Aug)2.5ft (0.8m) 14s
Most Powerful 5AM (Wed 26th Aug)4.5ft (1.3m) 13s

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


The Lowdown

Alright, crew, Rusty here again. Let's break it down in the old measurements. It's a slow start for the first week, but there's a big window of opportunity later on. The swell is coming from a solid S-SSW direction, which is the sweet spot for The Rock-Costa Azul, a reef break setup that needs that specific angle. The water temp is about what you'd expect.

The real standout is the session on Friday the 28th of August. The afternoon is looking prime. We're getting a clean 5ft swell from the SW with a 17-second period – that's deep groundswell with serious punch. The wind is light WSW, cross-off, keeping the waves clean. The combined energy is a very strong 1572, so there's a heap of power in the water. This is the best on offer for experienced surfers. The Rock is a consistent, advanced reef, so you won't be fighting crowds, but it's a spot that demands respect.

Before that, we've got a few sessions worth paddling out for. The Thursday afternoon the 27th is another solid call. Clean 4ft SW swell with a 12-second period, light cross-off wind from the WSW again, and strong energy at 850. It's a step down from the Friday standout, but it'll be a fun, clean session.

The first week is a bit of a slog. From Friday the 21st right through to Wednesday the 27th we see small, inconsistent swell, mostly in the 2ft to 4ft range. The wind is generally light, but it's often cross or cross-on, and the periods are mixed. The guidance gives it low scores, and honestly, it's a lot of marginal, ordinary conditions. The energy readings are in the moderate range.

Once we hit the start of September, things get blown out. The 1st and 2nd of September see a massive, raw swell of up to 20ft, but it's getting hammered by strong onshore winds from the SE, making it a no-go for paddle surfing. The combined energy readings are huge – 4040, 6074, 12563 – but it's just messy. This setup is more for kite surfing than a traditional surf session. The 3rd of September is still huge, but the afternoon could see a window if you're a big-wave expert, with cross-shore winds and a 13ft SW swell.

The later window on Saturday the 5th of September is another one to mark on the calendar. The Saturday morning is looking promising with a 6ft W swell, solid 11-second period, and light cross-off wind from the WSW. The energy is still strong at 1337, and it's flagged as excellent for experienced surfers. It's a way out, so keep an eye on it, but it could be a fitting end to the run.

Bottom line: the absolute best on offer is the afternoon of Friday the 28th. The second best is the afternoon of Thursday the 27th. If you're in the water, you're at The Rock-Costa Azul.

Rusty, out.

Short Range Forecast

Some drizzle, heaviest during Fri afternoon. Warm (max 33°C on Fri morning, min 28°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Mon morning. Warm (max 32°C on Mon afternoon, min 28°C on Sun night). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
2
1
1
3
2
2
2
1
2
3
0
1
3
1
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
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
1.3
SSE
10
0.7
SW
17
1
SSW
12
1.3
SSW
12
1.3
SSW
11
1.1
SW
16
0.9
SW
16
1.3
SW
11
1.1
SW
10
1.1
SW
10
Wave Graph
Metric surfscale
Energy kJ
151
111
151
217
288
280
297
289
251
312
288
291
436
433
546
358
391
277
255
Wind (km/h)
15
NW
5
SSE
10
WSW
10
NW
10
S
15
SW
10
WSW
15
SSW
25
SW
20
W
10
ENE
5
SSW
10
WNW
15
E
15
S
5
W
15
S
15
SW
10
WNW
Wind State
cross-off
glassy
cross-off
off
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross-on
cross
off
cross-on
cross-on
cross-off
cross-on
cross-off
off
High Tide
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
clear
part cloud
rain showers
part cloud
clear
clear
clear
clear
clear
part cloud
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:58
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:45
6:44
6:43
6:42
 mm
1
4
1
2
Temp °C
30
33
32
30
32
32
29
31
31
29
31
32
29
31
31
29
31
30
28
Feels °C
33
38
36
34
36
34
33
33
31
31
34
36
33
32
33
32
33
32
31
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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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