Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 8 pm 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 28 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 12PM (local time) - 4.5ft (1.4m), 6s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 3PM (local time) - 5ft (1.5m), 7s period, S swell with 223 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 9PM (local time) - 2ft (0.6m), 7s period with E 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 Saturday (Aug 29) at 9PM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.1m and 10s. 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 1.5m 7s and forecast to arrive on Wednesday (Sep 02) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (Sep 04) at 12AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 29th Aug)2ft (0.6m) 7s
Best Surf12PM (Wed 2nd Sep)4.5ft (1.4m) 6s
Most Powerful 3PM (Wed 2nd Sep)5ft (1.5m) 7s

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


The Lowdown

Alright, let’s have a look at what Bikini's got cookin' over the next couple weeks. Gotta be straight with ya – it’s a slow start. Not much to get excited about for a good long while.

First up, we're looking at Bikini. It’s an advanced-level spot, very consistent, but early on the swell is tiny and the wind is mostly cross or cross-shore with some chop. From Friday the 28th of August right through to Tuesday the 1st of September, the surf is poor – tiny waves, messy conditions. There’s a bit of clean surf showing on Sunday the 30th morning, very small around 2 ft from the east, with a light cross-offshore breeze, but it’s not enough to get the heart racing. Energy is weak (40). That’s about the only breath of fresh air in that first week.

From Wednesday the 2nd of September onwards, things start to shuffle a bit. Wednesday arvo sees a bump in size to 5 ft from the south, but it’s short-period stuff (7 seconds) and cross-onshore wind creates a bit of chop. Energy picks up to moderate (290) but conditions are only marginal. Thursday the 3rd morning is cleaner with an offshore slant and 3 ft south swell, but still ordinary. Friday the 4th morning has a nice offshore breeze from the north-northeast and 2 ft from the south-southeast – clean but small. That afternoon, a 1 ft south-southeast groundswell rolls in with a very long 15-second period – that’s proper energy for its size (142), but it’s tiny. Long-period swells like that can break a bit straight on the beach, but Bikini’s a point setup too so it might find a line.

The standout window looks to be Wednesday the 9th and Thursday the 10th of September. Wednesday morning goes glassy – I mean dead calm, 5 km/h from the north-northeast – with a solid 6 ft south-southwest swell. That’s a big bump, over the 5 ft mark so not for beginners, but it’s clean and the energy is strong (334). Wednesday afternoon sees 7 ft from the same direction, a light cross-offshore breeze, and energy building (455). Thursday the 10th morning is the real gem: 7 ft south-southwest swell, 9-second period, light east cross-offshore breeze, and very good conditions. Combined energy is strong (720). That’s the best on offer – a proper session for the experienced crew. Watch out though, Thursday afternoon gets a bit lumpy with a cross-shore chop and the same size dropping slightly.

After that, from Friday the 11th through Saturday the 12th of September, the wind swings onshore and the swell fades, turning messy again. So, if you can hold out, the 9th and 10th are your days. Everything else is pretty slim pickings.

The water temp is about average for this time of year, no big anomaly to mention.

Keep an eye on the forecasts, but for now, the 9th and 10th are the ones to circle.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sun afternoon, min 10°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Wed morning. Very mild (max 14°C on Mon morning, min 8°C on Wed morning). Wind will be generally light.

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
1
1
0
1
0
0
0
0
0
1
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SE
11
0.9
SE
11
0.6
E
10
0.4
SE
10
0.8
ESE
5
0.6
ESE
6
0.6
E
7
0.6
E
7
0.6
E
8
0.6
E
8
0.7
E
8
0.1
S
7
0.9
E
8
0.9
E
9
1
E
9
0.8
E
9
0.7
E
9
1.5
S
7
1.2
S
9
Wave Graph
Metric surfscale
Energy kJ
101
166
70
24
27
20
38
36
47
49
65
1
103
117
165
108
87
223
220
Wind (km/h)
10
SSE
15
SE
15
SE
10
ESE
15
ESE
15
SE
10
ENE
10
ENE
20
ENE
10
E
15
ESE
15
ESE
10
SSW
15
SSW
15
S
5
N
15
SE
10
SE
15
SE
Wind State
cross-on
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
on
on
on
glassy
cross-on
cross
cross
High Tide
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
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
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
cloud
cloud
cloud
clear
clear
clear
part cloud
light rain
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
5
1
Temp °C
11
13
13
11
13
13
11
14
15
12
14
14
13
13
13
12
9
9
9
Feels °C
8
9
10
8
9
9
8
11
11
10
12
12
12
9
8
9
5
7
6
  • 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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