Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 8 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
10.7°C
0.5° 

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


Bikini surf forecast from 29 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 6AM (local time) - 1.5ft (0.5m), 10s period, E swell with glassy winds.
  • Most powerful swell: Wednesday 2 Sep, 6PM (local time) - 3.5ft (1.1m), 9s period, E swell with 189 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 6AM (local time) - 1.5ft (0.5m), 10s 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 6AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.3m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Bikini in the next 16 days are 1.1m 9s and forecast to arrive on Wednesday (Sep 02) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Sep 02) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 29th Aug)1.5ft (0.5m) 10s
Best Surf 6AM (Sat 29th Aug)1.5ft (0.5m) 10s
Most Powerful 6PM (Wed 2nd Sep)3.5ft (1.1m) 9s

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


The Lowdown

G’day, Rusty here. Look, I’ll be straight with you – the next week or so is a bit of a flat, frustrating grind for Bikini. The first few days are just poor, tiny waves you’d barely bother paddling out for. It’s not until we get into the second week of September that the ocean finally wakes up, and when it does, it’s a proper, serious groundswell that’ll have the experienced crew grinning.

We’re starting off with a long, quiet stretch. From Saturday, August 29th, right through the first week of September, the best you’ll find is knee-high, weak energy. The swell hanging around 1.6ft from the east, with a period of 9 seconds, and the combined energy is barely a whisper (around 42 to 59). It’s clean, with light cross-offshore winds, but the waves just don’t have any push. The water temperature is about average for the time of year, so nothing unusual there.

The tide turns on Sunday, September 6th. We get a solid bump in size: 7.9ft from the SSW on Sunday morning, with a combined energy of 826. That’s moderate energy, and the wind is a cross-offshore breeze at 15.5 mph, which keeps it clean. But the period is only 9 seconds, so it’s a bit of a lumpy, wind-swell combo. It’s more of a kite-surfing setup than a classic paddle session, to be honest.

Now, the real standout is Monday, September 7th. The morning at Bikini is the pick of the entire forecast. We’re looking at a solid 6.6ft groundswell from the south, with a very long period of 12 seconds. That’s proper energy, with combined energy at 1040 (strong). The wind is light offshore from the NE at 6.2 mph, so the waves will be clean and glassy. This is an advanced wave, over 5ft, so it’s not for beginners. The swell direction is south, and Bikini’s exposed to that, so it’ll be hitting the point and beach setup hard. For experienced surfers, this is the day to be in the water.

The afternoon on the 7th gets messy with a cross-onshore wind and choppy conditions, so get it early. The following days, 8th and 9th, are blown out by strong onshore winds, but the 10th of September (Thursday morning) offers a redemption window: 3.6ft from the SE with a 13-second period (very long), clean cross-offshore winds, and combined energy of 513 (moderate). It’s a smaller, cleaner follow-up, but the long period will make it a bit straight at the beach, so it’ll be better for the point section.

After that, the forecast drops off again into weak, poor quality surf for the rest of the window. No other standouts to mention.

Stay safe out there.

Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Thu afternoon, min 10°C on Wed night). Wind will be generally light.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
1
1
0
0
0
0
0
0
0
1
1
1
0
1
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)
0.6
E
10
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.1
SE
10
0.1
S
6
0.6
E
8
0.6
E
8
0.7
E
8
0.7
E
8
0.7
E
9
0.7
E
9
0.8
E
9
0.2
SSW
8
0.5
E
9
0.5
E
10
0.5
E
10
Wave Graph
Metric surfscale
Energy kJ
71
43
40
38
38
36
4
1
50
46
64
68
78
78
101
6
40
45
47
Wind (km/h)
10
E
10
SE
10
E
10
NE
10
ENE
20
ENE
15
ENE
15
E
15
ESE
10
SSE
15
SSW
15
SSW
10
NW
5
NNE
5
ENE
15
NE
10
ENE
5
WSW
0
WSW
Wind State
cross-off
cross
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
on
on
cross-off
glassy
cross-off
off
cross-off
cross-on
glassy
High Tide
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
5:35AM0.20m
00:45AM0.20m
Low Tide
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
7:32AM0.18m
8:30PM0.01m
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
7:00
6:58
6:56
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:16
6:16
6:17
6:19
6:20
6:20
6:21
 mm
Temp °C
11
12
13
11
14
15
13
14
14
13
12
12
12
13
15
12
16
18
12
Feels °C
9
9
9
8
11
11
10
12
12
12
7
7
8
10
12
10
15
17
11
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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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