Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 8 pm 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
11.1°C
0.0° 

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


Bikini surf forecast from 25 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 12AM (local time) - 5ft (1.6m), 14s period, SE swell with offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 9PM (local time) - 5ft (1.6m), 15s period, SE swell with 1,140 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 3AM (local time) - 4.5ft (1.4m), 11s 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 Tuesday (Aug 25) at 3AM. The primary swell is predicted to be 1.4m and 11s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Bikini in the next 16 days are 1.6m 15s and forecast to arrive on Tuesday (Aug 25) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Aug 27) at 3AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 25th Aug)4.5ft (1.4m) 11s
Best Surf12AM (Wed 26th Aug)5ft (1.6m) 14s
Most Powerful 9PM (Tue 25th Aug)5ft (1.6m) 15s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cooking over the next couple of weeks at Bikini. It’s a bit of a slow burner, but there are a couple of windows worth setting the alarm for.

The forecast kicks off with some small, clean waves to ease into the week, but the real standout is the pulse that builds mid-week. The good news is that despite a few flat spells, there are opportunities for those who know what they are looking for.

Tuesday, 25th August starts us off gently. Morning sees some small lines at Bikini, with a 4ft swell from the SSE at 11 seconds. Combined swell energy is moderate (382), and with a light offshore breeze from the NE, it will be clean. It’s not big, but it’s rideable. By the afternoon, the wind swings cross-off from the ENE, and though the swell drops a fraction to 4ft, the energy actually bumps up (582), but things get a bit more marginal with the tide.

Now, Wednesday, 26th August is the standout. This is the session you want to look at. A solid 5ft groundswell from the SE, with a very long 15-second period, is pumping in. The combined energy is strong at 1103, and with a clean offshore wind from the NE in the morning, Bikini will be firing. This one is for the experienced crew – it’s a proper step up. The afternoon holds similar size at 5ft but the wind backs off slightly, going cross-off with a moderate breeze. Still, that morning window looks choice.

Thursday, 27th is a mixed bag. The morning offers a 3ft SE swell (394 energy) with a light cross-off NW breeze, so the conditions are clean. But the afternoon turns onshore with a solid SW breeze making it messy and poor.

From Friday, 28th August right through to Wednesday, 2nd September, it gets quiet. Small, weak swells under 3ft dominate, with combined energy dropping below 200 most days. The winds are mostly cross or onshore, and the surf quality is poor. There’s an extended flat spell with no real recommendations, lasting about five or six days. Not much to get excited about here.

Thursday, 3rd September sees a bump in size, but with a strong 30-40 km/h wind from the WSW, it’s a write-off for paddle surfing. The swell hits 4-5ft from the SSW with a short, weak period of 6-8 seconds. The setup looks more like a kite day than a surf session.

There’s a glimmer of hope on Saturday, 5th September. The morning is tiny at 2ft, but the afternoon brings a clean 3ft swell from the SSE with a nice 13-second period. The wind goes light offshore from the NE, and combined energy reaches 227. It’s not huge, but it’s clean and should offer some fun little waves.

Sunday, 6th September holds similar conditions – 3ft from the E with offshore winds and a moderate breeze, keeping it clean. It’s ordinary but surfable.

Into the second week, Monday, 7th September morning has clean 3ft waves from the E with a light offshore, though the energy is weak (96). The afternoon turns poor with onshore breezes.

The final few days, from Tuesday, 8th September through Wednesday, 9th September, look pretty poor again with small swell and cross-onshore winds. Nothing worth chasing.

So, to wrap it up: Wednesday, 26th August morning is your best bet – a solid 5ft SE groundswell with a long 15-second period and clean offshore wind. That’s the one for the experienced locals. For a more relaxed paddle, Tuesday, 25th August morning offers a clean, smaller intro, and Saturday, 5th September afternoon could surprise with a clean, longer-period swell. The rest of the window is mostly flat or messy. Keep an eye on the forecasts for any late changes.

Stay stoked,
Rusty.

Short Range Forecast

Light rain (total 7mm), mostly falling on Thu morning. Very mild (max 18°C on Thu morning, min 4°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Thu night. Very mild (max 14°C on Sat morning, min 10°C on Thu night). Wind will be generally light.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
4
4
2
2
2
0
0
0
0
0
1
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSE
11
1.3
SSE
11
0.8
SE
15
1.6
SE
14
1.6
SE
15
1.5
SE
15
1.2
SE
14
1
SE
13
1
SSE
12
0.6
SE
11
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
9
0.8
E
9
0.9
E
6
Wave Graph
Metric surfscale
Energy kJ
439
359
316
1016
1103
940
532
326
308
101
94
96
94
90
92
90
85
106
67
Wind (km/h)
5
ENE
10
NE
15
ENE
15
NE
20
NE
25
NE
15
ENE
10
NW
25
SW
15
SSE
10
SSE
15
SSE
10
ESE
15
E
15
ESE
15
E
15
ESE
20
E
10
E
Wind State
cross-off
off
cross-off
off
off
cross-off
cross-off
cross-off
on
cross-on
cross-on
cross-on
cross
cross-off
cross
cross-off
cross
cross-off
cross-off
High Tide
6:33AM0.19m
5:56PM0.28m
6:56AM0.20m
6:44PM0.28m
7:20AM0.21m
7:29PM0.28m
7:48AM0.23m
8:12PM0.28m
8:19AM0.25m
8:55PM0.27m
8:54AM0.28m
9:38PM0.26m
Low Tide
1:21AM0.08m
9:42AM0.17m
2:10AM0.09m
1:43PM0.16m
2:54AM0.10m
2:44PM0.14m
3:35AM0.11m
3:36PM0.11m
4:15AM0.12m
4:24PM0.08m
00:58AM0.19m
4:55AM0.13m
5:12PM0.06m
00:56AM0.19m
clear
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rain showers
light rain
light rain
rain showers
part cloud
clear
part cloud
part cloud
cloud
part cloud
cloud
part cloud
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:05
7:05
7:03
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:15
6:15
6:15
6:16
6:16
6:17
 mm
1
5
1
1
Temp °C
6
8
10
8
14
16
13
18
14
11
12
12
11
14
14
12
14
14
13
Feels °C
3
4
6
3
9
12
10
18
10
8
8
8
8
11
10
9
11
10
12
  • 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 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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