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 17 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, 5PM (local time) - 3.5ft (1.1m), 15s 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, 2AM (local time) - 2.5ft (0.8m), 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 Tuesday (Aug 18) at 2AM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.6m and 17s. 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 1.1m 16s and forecast to arrive on Tuesday (Aug 18) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (Aug 21) at 8AM.

Wave TypeTime (MST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 18th Aug)2.5ft (0.8m) 13s
Best Surf 5PM (Tue 18th Aug)3.5ft (1.1m) 15s
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 with a look at the surf ahead for The Rock-Costa Azul. This is a consistent, exposed reef break, so it handles a bit of everything, but we gotta be picky about the wind.

We're starting off a bit slow. The first half of this 16-day window is a waiting game. There's small, long-period SSW groundswell bumpin' in from the 17th of August, but the energy just isn't there for a proper session. The combined energy is a weak 728 (kinda meh). On top of that, the wind is a moderate cross-offshore from the WSW, which isn't terrible, but the conditions are marginal. You'll see a few afternoon windows with cleaner conditions and slight air, like on Tuesday the 18th, but the swell is too small to get excited about. Honestly, we're looking at a solid week of either clean but tiny surf or onshore chop.

Water temps here are cranked up nicely – we're talking 89° at the start, which is a whopping 7° warmer than normal for this time of year. It’s like a tropical bath, so you can ditch the thick rubber.

The real story begins at the end of August heading into September. The standout session is undeniably the afternoon of Friday, August 28th. That's the one. We've got a proper SSW pulse pushing the combined energy up to a strong 1668, with the swell jumping to a solid 5ft. The period stretches out to a very long 18 seconds – that's pure groundswell, bringing plenty of grunt. The wind goes light offshore from the WSW, so it'll be clean as a whistle. This is excellent, powerful reef surf for experienced surfers. The only bummer is that a spot like this can get crowded, so you’ll want to be early.

Leading into that, the Saturday the 29th holds a similar size at 6ft with a 16-second period, but the wind is a light cross-onshore, so it won't be as perfect as Friday. Still plenty of energy, but just not the same quality. By Sunday the 30th we’re still seeing a fun 4ft SSW swell with clean conditions in the afternoon, but the energy is dropping back to a moderate 847. Then we hit a bit of a lull before a final pulse on Tuesday, September 1st, with 6ft of SSW swell, but the wind is a stronger cross-off at 15mph, making it a bit more challenging. Still, that Friday the 28th is the clear winner – mark it on the calendar.

Rusty, signing off.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Tue afternoon. Warm (max 32°C on Mon afternoon, min 27°C on Tue afternoon). Wind will be generally light.

Days 5-7 Weather Summary

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

Mon
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
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
1
3
3
1
1
2
1
1
2
1
1
2
0
2
3
0
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SSW
16
0.8
SSW
13
1
SSW
14
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
0.7
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
0.6
SSW
18
0.9
SSW
14
Wave Graph
Metric surfscale
Energy kJ
674
229
437
544
604
325
321
316
236
225
151
147
151
220
288
280
297
289
214
273
Wind (km/h)
25
WSW
5
ESE
20
SW
5
NNW
0
ESE
10
S
15
WSW
15
W
10
ESE
15
WSW
15
NW
5
SSE
20
W
15
NW
10
ESE
5
SSW
0
E
20
ESE
15
SSE
10
WSW
Wind State
cross-off
glassy
cross-off
cross-off
glassy
cross
cross-off
off
on
cross-off
off
cross-on
cross-off
off
on
glassy
glassy
on
cross-on
cross-off
High Tide
11:16PM1.10m
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
Low Tide
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
12:16PM1.02m
1:15AM0.28m
clear
thunderstorm
part cloud
mod rain
rain showers
clear
part cloud
clear
clear
clear
clear
clear
clear
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
clear
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
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:49
6:47
6:46
6:45
6:45
6:45
 mm
3
6
1
2
1
2
2
Temp °C
32
29
31
31
28
30
30
28
32
31
28
32
32
28
32
31
29
31
31
29
Feels °C
35
33
33
32
33
34
32
32
36
35
30
37
35
30
35
35
35
32
32
33
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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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