Cabo Blanco Surf Break

Lat Long: 8.36° N 83.15° W

Cabo Blanco Surf Forecast and Surf Report

Issued: 6 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cabo Blanco sea temperature is
30.5° C
2.3° 

Cabo Blanco surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Cabo Blanco surf forecast from 18 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 1AM (local time) - 3ft (0.9m), 16s period, SW swell with glassy winds.
  • Most powerful swell: Thursday 20 Aug, 10PM (local time) - 4.5ft (1.4m), 12s period, SSW swell with 530 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 4PM (local time) - 2.5ft (0.8m), 15s period with SW swell.

Best Forecast Surf Conditions for Cabo Blanco this week:

The surf forecast for Cabo Blanco over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 4PM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.9m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cabo Blanco in the next 16 days are 1.4m 12s and forecast to arrive on Thursday (Aug 20) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Tue 18th Aug)2.5ft (0.8m) 15s
Best Surf 1AM (Wed 19th Aug)3ft (0.9m) 16s
Most Powerful10PM (Thu 20th Aug)4.5ft (1.4m) 12s

Table - best surf conditions forecast for Cabo Blanco over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s talk about Cabo Blanco.

Water temp is sitting at a very warm 87°, which is way warmer than normal for this time of year – ditch the rubber.

Tuesday morning kicks off with a clean 3ft swell from the SW, glassy with a light ENE breeze. It’s not big, but it’s good quality. The swell energy is moderate at 414. The afternoon has a risk of thunderstorms.

Wednesday morning is classic: 2ft SW groundswell with a 15-second period, and flat calm – total glass. The waves will be clean, but the long period means longer waits between sets.

Thursday sees a bump: 3ft in the morning, building to 4ft by afternoon from the SSW. Both windows are glassy, so the afternoon offers more punch.

Friday morning is the first standout of the week: a clean 5ft SSW swell with a glassy surface – that’s the best of the early days.

The weekend gets messy. Saturday morning is still clean with 3ft from the S, but afternoon winds swing cross-onshore and chop it up. Sunday morning is tiny at 2ft with an 18-second period, still glassy, but the long period might make it straight. The afternoons are poor.

The middle of the week stays small with clean mornings but rotten afternoons.

The real gold is at the end. Saturday, August 29th morning shows a building 3ft SW groundswell (17 seconds), calm winds, and strong energy at 553.

Sunday, August 30th is the absolute standout. Morning delivers 4ft SW groundswell (15 seconds) with glassy conditions and strong energy at 757. This is the best on offer – solid size, clean, and powerful. Crowds can be an issue here, so get out early.

Monday, August 31st keeps it going with 5ft SSW swell and glassy morning conditions – another top session with energy at 826.

For the first week, Friday 21st morning is the pick. Long-range, Sunday 30th morning is the absolute best – bigger, cleaner, and packing serious energy.

That’s your outlook.

Rusty.

Short Range Forecast

Moderate rain (total 19mm), heaviest on Thu afternoon. Warm (max 28°C on Tue morning, min 25°C on Thu afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Sun afternoon. Warm (max 29°C on Fri afternoon, min 26°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
2
1
2
2
2
3
2
1
2
2
0
1
2
0
2
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
14
0.8
SW
15
0.9
SW
16
0.7
SW
15
0.7
SW
14
0.9
SSW
10
0.9
SSW
10
1.2
SSW
11
1.4
SSW
12
1.4
SSW
11
1.4
SSW
11
1.1
SSW
10
1
S
10
1
S
10
0.9
SSW
10
0.6
SSW
14
0.5
SW
18
0.6
SSW
18
0.5
SW
18
0.6
SSW
17
0.7
SW
16
Wave Graph
Metric surfscale
Energy kJ
288
258
362
217
214
163
166
334
512
455
447
270
204
196
154
121
168
216
155
202
278
Wind (km/h)
5
ENE
5
S
0
NW
0
NW
10
WSW
5
NNW
0
SE
0
SSW
5
NW
5
ENE
10
SSW
5
NW
5
W
15
W
5
NW
0
W
10
W
5
NW
0
WNW
10
WSW
15
NNW
Wind State
glassy
glassy
glassy
glassy
on
cross-off
glassy
glassy
glassy
glassy
on
glassy
glassy
cross-on
cross
glassy
cross-on
glassy
glassy
on
cross-off
High Tide
7:44PM2.60m
8:03AM2.73m
8:30PM2.40m
8:48AM2.53m
9:21PM2.22m
9:40AM2.37m
10:24PM2.09m
10:44AM2.26m
11:39PM2.05m
11:56AM2.24m
00:52AM2.11m
1:02PM2.31m
1:49AM2.24m
Low Tide
1:39PM0.45m
1:48AM0.59m
2:23PM0.61m
2:32AM0.78m
3:13PM0.77m
3:23AM0.95m
4:13PM0.89m
4:25AM1.08m
5:23PM0.94m
5:38AM1.12m
6:32PM0.90m
6:49AM1.07m
7:31PM0.80m
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
light rain
thunderstorm
part cloud
clear
rain showers
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:24
6:24
6:24
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:46
6:45
6:45
6:45
6:45
6:44
 mm
1
1
1
5
5
1
5
1
1
2
7
3
1
11
23
Temp °C
28
27
26
28
28
26
27
26
25
28
29
27
29
29
27
29
28
27
28
28
25
Feels °C
32
31
31
32
32
31
32
31
29
31
32
32
33
31
32
33
31
32
34
31
29
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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 Cabo Blanco Surf forecast

The above surf forecast table for Cabo Blanco provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cabo Blanco can be found by selecting the local surf guide option on the grey menu. Our Cabo Blanco 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 (Cabo Blanco) 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 Cabo Blanco 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.

Are you planning a holiday in Golfo Dulce? If you are looking for accommodation near Cabo Blanco, camping, hotels and holiday cottages in Golfo Dulce, consider staying in Golfito which is 31 km (19 miles) away. Other places in and around Golfo Dulce where you can find information about places to rent, and car hire include Puerto Armuelles which is 32 km (20 miles) away, La Concepcion, Pedregal and David.

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