Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 2 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
10.7° C
0.4° 

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


Bikini surf forecast from 21 Aug 2026:

  • Best quality surf: Monday 24 Aug, 9AM (local time) - 6ft (1.8m), 13s period, SSE swell with glassy winds.
  • Most powerful swell: Sunday 23 Aug, 12PM (local time) - 10ft (3.0m), 14s period, S swell with 3,571 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 9AM (local time) - 6ft (1.8m), 13s period with SSE swell.

Best Forecast Surf Conditions for Bikini this week:

The surf forecast for Bikini over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 24) at 9AM. The primary swell is predicted to be 1.8m and 13s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Bikini in the next 16 days are 3.0m 14s and forecast to arrive on Sunday (Aug 23) at 12PM. 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 Tuesday (Aug 25) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Mon 24th Aug)6ft (1.8m) 13s
Best Surf 9AM (Mon 24th Aug)6ft (1.8m) 13s
Most Powerful12PM (Sun 23rd Aug)10ft (3.0m) 14s

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


The Lowdown

Alright, Rusty here. Let's have a look at what's coming down the pipeline for Bikini.

Right off the bat, the next few days are a write-off. We've got a solid southerly swell running, but the wind is howling onshore from the southwest, making a mess of things. Friday and Saturday are a total no-go with that wind and lumpy, poor conditions. The swell energy is moderate, hitting 578 on Friday morning and jumping up to 821 on Saturday afternoon, but it doesn't matter with that wind.

Sunday the 23rd looks a bit more promising in terms of raw power. We're looking at a solid 8ft southerly swell with a long 13-second period – that's proper groundswell. The combined energy is very strong, peaking at 2553 on Sunday afternoon. But again, the wind is onshore. It's a beast of a day, but only for the most experienced chargers who don't mind it messy, and even then it's a bit of a mission.

The first real chance of something decent comes on Monday the 24th. The swell drops a little to 6ft from the SSE, still a long 13-second period. The wind goes light and cross-shore. The energy is still moderate at 977. It's a marginal call, but with that light wind, there could be a few clean ones if you pick the right bank.

Then we get a little window. Tuesday morning the 25th sees the swell drop to 4ft, but we finally get some offshore wind from the northeast. The conditions are clean, and the 11-second period keeps a bit of shape. It's small, but it'll be your best bet for a fun, clean session.

Wednesday the 26th is looking like the standout. The swell is still around 4ft from the southeast, but the period stretches out to a very long 13 seconds. We get moderate offshore winds from the NNE, and the water temp is about average for this time of year at 51°. The combined energy is a solid 501. This is the pick of the forecast – clean conditions with that long period groundswell making for some well-shaped waves. It won't be huge, but the quality should be there.

Thursday the 27th is a special mention. Early morning we've got glassy conditions with 3ft of 13-second south-east swell. That's a window of pure glass. The crowds are often around here, so get out early if you want it to yourself.

After that, the swell really backs off. Friday the 28th onwards drops to knee-high or less with weak energy. We get a long stretch of tiny, poor surf right through to the end of the month. There is a little pulse on the 2nd of September with 5ft of short-period swell, but the quality is ordinary. The 3rd of September has some 5ft SSE swell with a decent 12-second period and clean cross-offshore wind, which could be worth a look if you're desperate, but it's a marginal call.

So, to sum it up: the first half of the week is a write-off due to wind. Wednesday the 26th is your best bet for clean, quality waves, and Thursday morning the 27th offers a glassy, small session. After that, it's flat for a while until a small, uncertain pulse around the 3rd of September. Keep your eye on the wind, but the long-range stuff is promising.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 10°C on Sat night, min 5°C on Sun night). Winds decreasing (fresh winds from the WSW on Sat morning, calm by Mon morning).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Wed afternoon, min 6°C on Mon afternoon). Wind will be generally light.

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
2
4
1
2
3
2
1
3
2
2
2
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
S
8
1.9
S
10
1.9
SSW
10
1.6
S
12
1.6
S
11
2.5
S
13
2.5
SSE
15
2.3
SSE
14
1.8
SSE
13
1.6
SSE
12
1.4
SSE
11
1.2
SSE
11
1.4
SSE
14
1.3
SSE
12
1.2
SE
13
1.1
SE
13
1.1
SE
13
0.9
SE
12
0.8
SE
12
0.6
SE
12
Wave Graph
Metric surfscale
Energy kJ
520
641
702
711
621
2345
3183
2056
1009
718
486
340
731
496
501
437
369
248
172
110
Wind (km/h)
30
SSW
20
SW
30
WSW
35
WSW
25
WSW
30
SSW
25
SSW
10
S
5
S
10
SE
15
ENE
10
NNE
20
ENE
20
NE
25
NNE
20
NE
15
NE
0
NW
20
SSW
5
SSW
Wind State
on
cross-on
cross-on
cross-on
cross-on
on
on
on
glassy
cross-on
cross-off
off
cross-off
cross-off
off
off
off
glassy
on
on
High Tide
7:42AM0.19m
3:08PM0.28m
5:58AM0.18m
4:07PM0.28m
6:10AM0.18m
5:03PM0.28m
6:33AM0.19m
5:56PM0.28m
6:56AM0.20m
6:44PM0.28m
7:20AM0.21m
7:29PM0.28m
Low Tide
10:38PM0.07m
9:43AM0.18m
11:32PM0.07m
6:50AM0.18m
00:27AM0.08m
8:42AM0.18m
1:21AM0.08m
9:42AM0.17m
2:10AM0.09m
1:43PM0.16m
2:54AM0.10m
2:44PM0.14m
part cloud
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:09
7:09
7:07
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:12
6:13
6:14
6:15
6:15
6:15
 mm
2
Temp °C
8
8
8
9
10
8
8
7
6
7
6
9
12
9
14
17
14
14
13
12
Feels °C
0
1
0
0
3
0
1
2
2
3
2
4
8
4
9
13
12
15
10
11
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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 Bikini Surf forecast

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

Bikini is 17 km (11 miles) from the city of San Carlos. If you plan a holiday in Uruguay - South, look for hotels and other accommodation in San Carlos. San Carlos has rooms for a wide range of budgets as well as car hire and transport links.

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