Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 2 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
11.0°C
0.2° 

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


Bikini surf forecast from 27 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 9AM (local time) - 3.5ft (1.0m), 13s period, SE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 6PM (local time) - 5ft (1.6m), 10s period, S swell with 492 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 9AM (local time) - 3.5ft (1.0m), 13s period with SE 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 Thursday (Aug 27) at 9AM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.8m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Bikini in the next 16 days are 1.6m 10s and forecast to arrive on Wednesday (Sep 02) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Monday (Aug 31) at 3AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 27th Aug)3.5ft (1.0m) 13s
Best Surf 9AM (Thu 27th Aug)3.5ft (1.0m) 13s
Most Powerful 6PM (Wed 2nd Sep)5ft (1.6m) 10s

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


The Lowdown

Alright, Rusty here. Let’s talk about what’s on offer at Bikini. To be straight with you, this is a tough run. We are looking at a long, drawn-out stretch of very ordinary conditions before anything worth paddling out for shows up. The forecast is currently loaded with onshore, cross-shore, and cross-offshore winds, mixed with some real short-period, weak energy pulses.

The water temp here is sitting at 52°F, which is pretty much bang on average for the time of year, nothing wild there.

The first glimmer of hope doesn’t arrive until Thursday the 3rd of September. Thursday morning brings a bit of a shift. We get a lovely offshore breeze from the NNE at 9 mph. The swell is a modest 3 ft out of the south with a period of 9 seconds. The combined swell energy is sitting at 191 (moderate). It’s not epic, and the score is honestly just "surfable", but with that clean offshore wind, it’s the best we’ve seen in days. Thursday afternoon stays clean with offshore NE wind, but the swell drops to 3 ft and energy fades to 125.

Friday the 4th of September morning is tricky. There is a long-period groundswell (15 seconds) from the SSE, but it’s only 2 ft. At a spot like Bikini, which is a beach and point setup, that very long period could just slide past the beach breaks and only line up on the point. The energy is moderate (189), but the actual wave height is tiny. The wind is light cross-off from the NNW, so it would be clean, but you’d need a log.

The real standout in this whole 16-day window is Wednesday the 10th of September afternoon. That’s the one to circle on the calendar if you can wait. We get a 3 ft southerly swell with a solid 11-second period, delivering a combined energy of 273 (moderate). The wind is light cross-off from the east at 12 mph, keeping things reasonably clean. It’s still not firing, but compared to the rest of this run, that afternoon is the best opportunity for a proper wave. Expect the swell to hold some shape on the point.

Everything after that falls away again. Friday the 11th of September morning has a little bump of 2 ft south swell with light offshore NNE wind at 6 mph, and that’s about it before the window closes.

For the most part, the consistency is there, but the quality is not. The swell direction is from the south and southeast, and this break wants it from the south, so the exposure is right, but the wind just ruins the party for day after day. If you're a kite surfer, those days with strong cross-off winds and a bit of chop might look way more appealing than they do for a paddle surfer. The first week is basically a right-off. Thursday the 3rd is the first real chance to get wet, but Wednesday the 10th afternoon is your best bet if you're holding out for a decent session.

Rusty.

Short Range Forecast

Light rain (total 9mm), mostly falling on Thu morning. Very mild (max 14°C on Thu morning, min 10°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Sun afternoon, min 9°C on Tue night). Wind will be generally light.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
0
1
1
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
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)
1
SE
13
0.9
SE
12
0.8
E
9
0.9
ESE
9
0.4
SE
10
0.4
SE
10
0.7
SE
5
0.7
ESE
6
0.5
E
6
0.1
SE
9
0.1
SE
10
0.1
SE
10
0.1
S
6
0.8
E
7
0.9
E
8
0.9
E
9
0.8
E
9
0.8
E
10
1.8
SSW
7
1.6
S
9
1.4
S
11
Wave Graph
Metric surfscale
Energy kJ
326
209
101
106
35
31
29
31
17
3
4
4
1
61
107
132
111
118
319
399
457
Wind (km/h)
5
NNW
20
SSW
15
ESE
15
ESE
15
SE
15
E
15
ESE
15
SE
15
ENE
15
ENE
20
E
15
E
15
E
10
ESE
0
SE
10
S
25
SW
15
SW
25
SW
15
SSW
10
NE
Wind State
cross-off
on
cross
cross
cross
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
glassy
on
cross-on
on
on
on
off
High Tide
7:29PM0.28m
7:48AM0.23m
8:12PM0.28m
8:19AM0.25m
8:55PM0.27m
8:54AM0.28m
9:38PM0.26m
9:32AM0.31m
10:22PM0.25m
3:38AM0.20m
11:07PM0.23m
4:37AM0.20m
11:54PM0.21m
Low Tide
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
5:35AM0.15m
5:59PM0.04m
1:25AM0.18m
6:14AM0.16m
6:48PM0.02m
6:53AM0.18m
7:38PM0.01m
mod rain
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:03
7:01
7:01
7:00
6:58
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:16
6:16
6:17
6:19
6:20
6:20
 mm
9
Temp °C
14
13
11
13
13
12
14
14
12
14
15
12
14
15
13
14
12
11
9
9
8
Feels °C
14
10
9
9
9
9
10
11
9
10
11
9
12
13
13
8
5
8
3
4
5
  • 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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