Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 8 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
10.9°C
0.3° 

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


Bikini surf forecast from 26 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 9AM (local time) - 5ft (1.6m), 15s period, SE swell with offshore winds.
  • Most powerful swell: Wednesday 26 Aug, 9AM (local time) - 5ft (1.6m), 15s period, SE swell with 1,103 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 6AM (local time) - 5ft (1.6m), 14s 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 Wednesday (Aug 26) at 6AM. The primary swell is predicted to be 1.6m and 14s 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 Wednesday (Aug 26) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Wednesday (Aug 26) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 26th Aug)5ft (1.6m) 14s
Best Surf 9AM (Wed 26th Aug)5ft (1.6m) 15s
Most Powerful 9AM (Wed 26th 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 Bikini’s got cookin’ over the next couple of weeks.

First up, we’ve got a solid pulse arriving Wednesday morning, the 26th of August. This is where it’s at for the experienced crew. We’re looking at a clean 5ft SE swell, period a long 15 seconds – that’s proper groundswell energy, gonna wrap in nicely at this exposed spot. Wind is a clean offshore from the NE at 12 mph, so those waves are gonna be lined up and chunky. The combined energy is pumping at 1103 (moderate wave energy). Water temp is about average for this time of year, nothing wild. This is a point-and-beach setup that handles S swell best, and this SE direction is close enough to do damage. Wednesday morning is the standout, no question.

Wednesday afternoon holds onto the quality, still a clean 5ft SE swell with the same long 15-second period and offshore breeze. It drops off slightly but still a great session for the advanced surfer. Crowds are often here, so expect some company, but the waves will be worth it.

Thursday morning the 27th sees the swell ease to a clean 3ft, still a nice 13-second period from the SE with a light 6 mph offshore wind. It’s glassy and fun, but the size is dropping. A good option if you missed Wednesday. Thursday afternoon though, the wind swings onshore from the SSW, and it’s all over – poor conditions, avoid it.

From Friday the 28th right through to Tuesday the 1st of September, we hit a real flat, choppy patch. Winds are all over the shop – cross, cross-on, choppy – and the swell drops to knee-high mush with weak energy. There’s a couple of days around the 30th and 31st with clean, cross-off wind but the swell is tiny (2ft to 4ft) and short period (7-8 seconds). Surfable, but barely worth wetting a suit for. This stretch is a write-off.

We get a nice little revival on Thursday morning, the 3rd of September. A clean 5ft SSE swell rolls in with a 12-second period and a gentle 9 mph offshore from the NNE. Combined energy is 517 (moderate wave energy). It’s clean, groomed, and good for the advanced surfer – a proper second wind after the flat spell. The afternoon holds at 3ft S swell, still offshore, but the energy drops off.

After that, it fades again. From the 4th of September onwards, we’re back to small, weak, and mostly poor or ordinary conditions. The 8th and 9th show a bump in size to 4ft S/SSW swell, but the period is short (5-6 seconds) and the wind is cross-off. You might get a few lumpy walls, but it’s nothing to get excited about. The last decent day is the 10th, and that’s blown out with onshore wind.

So, the bottom line: Wednesday morning the 26th of August is your golden window – big, clean, and powerful. Thursday the 3rd of September is a solid backup. The rest is either flat, windy, or both. If you’re a beginner, the size on the 26th is too big, and the small stuff later is either messy or lacks push. For the experienced, get on it early.

Stay frothy.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Wed night. Very mild (max 16°C on Thu morning, min 6°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon afternoon. Very mild (max 15°C on Mon morning, min 11°C on Fri night). Wind will be generally light.

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
3
3
2
0
0
0
0
0
0
0
0
1
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SE
14
1.6
SE
15
1.5
SE
15
1.2
SE
14
1
SE
13
0.9
SE
12
0.6
SE
11
1
SSE
11
0.9
SE
5
0.6
E
10
0.7
E
7
0.6
E
10
0.1
SE
9
0.7
E
9
0.7
E
9
0.1
SE
10
1.1
E
7
1
E
8
1
E
9
Wave Graph
Metric surfscale
Energy kJ
1094
1103
940
532
326
209
101
238
35
71
44
66
3
83
81
4
111
116
146
Wind (km/h)
20
NE
20
NE
20
NE
15
NE
10
N
20
SSW
15
S
15
SE
15
SSE
10
ESE
15
SE
15
ESE
10
ENE
15
ENE
25
E
20
ENE
15
E
15
E
15
SW
Wind State
off
off
off
off
off
on
on
cross-on
cross-on
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
High Tide
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
9:32AM0.31m
10:22PM0.25m
Low Tide
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
5:35AM0.15m
5:59PM0.04m
1:25AM0.18m
part cloud
part cloud
cloud
rain showers
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:03
7:01
7:01
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:15
6:15
6:16
6:16
6:17
6:19
 mm
5
5
3
1
1
Temp °C
8
13
15
14
16
13
12
12
13
11
13
13
12
14
14
12
15
15
14
Feels °C
3
8
11
14
16
10
9
8
9
8
10
9
10
10
9
8
13
13
14
  • 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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