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 am 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 18 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 8PM (local time) - 3.5ft (1.1m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 18 Aug, 11PM (local time) - 3.5ft (1.1m), 16s period, SSW swell with 604 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 8PM (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 Tuesday (Aug 18) at 8PM. 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 cross-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 Tuesday (Aug 18) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Aug 21) at 5AM.

Wave TypeTime (MST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Tue 18th Aug)3.5ft (1.1m) 16s
Best Surf 8PM (Tue 18th Aug)3.5ft (1.1m) 16s
Most Powerful11PM (Tue 18th Aug)3.5ft (1.1m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s cut through the noise and talk about what’s coming our way at The Rock-Costa Azul. This is a consistent reef break that handles a south swell beautifully, and we’ve got a decent run of waves on the horizon, though you’ll need to pick your moments.

The water is *much warmer than normal* for this time of year, sitting at 89.1°F with a whopping 6.8°F anomaly. It’s like the ocean forgot it’s almost September. The first real call to action is Tuesday morning, the 18th of August. We’ve got a solid 3.3ft swell from the SSW, with a long 14-second period pumping some real energy into the lineup. The combined energy is a solid 461 (moderate wave energy), and with a light cross-off wind from the SW at 6 mph, it’s going to be clean. This is a good one to kick things off.

Tuesday afternoon sees the swell tick up a bit to 3.6ft, still from the SSW, with a very long 15-second period. The combined energy jumps to 608 (moderate to strong). The wind is still cross-off, but there’s a risk of thunderstorms, so keep an eye on the sky. The surf is still there, but the afternoon quality is a bit more marginal.

Wednesday the 19th is a fade. The morning is a bit crossed up with a cross-shore wind, and the swell drops to 3.0ft with a 14-second period. The afternoon kicks up a moderate breeze at 12 mph, but the wind is cross-off, so it stays clean. The energy is still there at 372 (moderate), but it’s not as good as Tuesday.

Thursday the 20th is a mixed bag. The morning has a light offshore wind from the ESE at 6 mph, but the swell is down to 3.0ft with a 13-second period, and the energy is 344 (moderate). The afternoon looks better with a clean cross-off wind and a 2.6ft swell, but the energy is still moderate at 391. It’s surfable, but nothing to write home about.

Friday the 21st is small. The swell drops to 2.3ft with a 13-second period. The morning has a light offshore, but the energy is weak at 216 (moderate-low). The afternoon is clean with a cross-off wind, but it’s a small wave day.

Saturday the 22nd is a bit of a write-off. The morning is poor with an onshore wind, and the swell is 2.6ft with a 16-second period, but the energy is 395 (moderate). The afternoon is crossed up with a light cross-shore wind. Not worth the paddle.

Sunday the 23rd is a slow rise. The morning has a gentle cross-shore breeze and a 3.0ft swell with a 14-second period. The energy is strong at 627 (moderate to strong). The afternoon sees a 3.6ft swell from the SSE with a shorter 10-second period, and a moderate cross-off wind. The energy is 665 (moderate to strong). It’s a bit of a messy rise, but there’s something there.

Now, Monday

Short Range Forecast

Light rain (total 9mm), mostly falling on Tue night. Warm (max 32°C on Thu morning, min 28°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 11mm), heaviest on Sat night. Warm (max 32°C on Fri morning, min 28°C on Fri night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
3
1
1
2
1
2
2
1
2
2
0
1
3
2
2
3
2
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
SSW
14
1.1
SSW
15
1.1
SSW
16
0.9
SSW
14
0.9
SSW
14
0.9
SSW
14
0.9
SSW
14
0.8
SSW
13
0.8
SSW
13
0.7
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
437
544
604
325
321
316
290
225
195
147
151
217
288
280
297
289
250
273
288
295
281
Wind (km/h)
10
SW
15
WSW
10
W
10
SSW
20
WSW
15
WNW
10
ESE
15
WSW
10
NW
10
SE
15
W
5
NNW
10
SE
10
SSW
5
W
15
SSW
20
SW
10
WNW
5
S
15
WSW
15
NW
Wind State
cross-off
cross-off
cross-off
cross
cross-off
off
on
cross-off
off
on
cross-off
cross-off
on
cross
glassy
cross
cross-off
off
cross
cross-off
off
High Tide
11:22AM1.46m
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
thunderstorm
clear
clear
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
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
2
4
1
1
1
2
2
2
4
1
Temp °C
31
31
29
31
31
29
32
31
29
32
31
30
32
31
28
31
31
28
31
31
29
Feels °C
34
33
34
35
34
34
36
35
33
36
35
34
35
35
31
34
33
31
36
35
33
  • Map Icons:
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  • Live Wave Height (m)
  • 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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