Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 8 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
13.1°C
1.8° 

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


Bikini surf forecast from 6 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 3AM (local time) - 7ft (2.1m), 8s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Saturday 12 Sep, 3PM (local time) - 8ft (2.5m), 8s period, ESE swell with 750 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 12AM (local time) - 5ft (1.5m), 9s 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 Monday (Sep 07) at 12AM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.1m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Bikini in the next 16 days are 2.5m 8s and forecast to arrive on Saturday (Sep 12) 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 1.4m 5s period and expected on Friday (Sep 11) at 3PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 7th Sep)5ft (1.5m) 9s
Best Surf 3AM (Sun 13th Sep)7ft (2.1m) 8s
Most Powerful 3PM (Sat 12th Sep)8ft (2.5m) 8s

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’ for us over the next couple of weeks.

Right off the bat, we’re in a bit of a flat spell. Sunday the 6th is a write-off – messy onshore winds and lumpy surf, not worth paddling out. The water temp is sitting at 56° with a 3° anomaly, which is a touch warmer than normal for this time of year – nothing wild, but you’ll notice it’s a bit more comfortable than usual.

We finally get a window on Monday the 7th morning. It’s small, only 4 ft from the SSE with a 9-second period, but the wind swings around to a light NNW offshore, keeping things clean. The combined swell energy is a modest 228 – not much punch, but if you’re keen for a few grovelly ones, it’s doable. The afternoon turns glassy with an ESE breeze at 3 mph and 4 ft – super clean, but still small.

Tuesday the 8th stays in that same vein: 3 ft to 2 ft from the SSE, clean conditions, but wave energy drops into the 160s. Wednesday the 9th and Thursday the 10th are tiny – we’re talkin’ 1 ft to 1 ft. The combined energy is below 100, barely a ripple. Friday the 11th and Saturday the 12th get messy with strong SE winds blowing 22 mph, lumpy cross-shore chop. Not your friend.

Now, Saturday the 12th afternoon sees a bump in swell height – 8 ft from the ESE – but the period is short at 8 seconds and the wind is howling. That’s a no-go for a paddle board. The energy value hits 750 (moderate), but with the wind and short period, this setup is more interesting for kite surfing than paddle surfing.

Sunday the 13th morning cleans up a bit – 6 ft from the ESE, 9-second period, cross-off wind. Energy’s up to 632, but the quality is marginal. The afternoon stays okay but drops to 5 ft.

Monday the 14th morning has some light rain and 5 ft from the E with ENE cross-off wind – energy at 605, but again, marginal. By afternoon, the wind swings onshore and kills it.

The second week is a mixed bag. Tuesday the 15th gets messy with strong SW winds. Wednesday the 16th sees 5 ft to 6 ft from the SSW, but cross-onshore winds keep it lumpy. The standout might be Thursday the 17th morning – 5 ft from the S with a 13-second period, combined energy at 899 (moderate), but the wind is cross-shore and creates a bit of chop. Still, the long period gives it some grunt. That’s an expert-only window – over 5 ft and a bit messy.

Friday the 18th morning brings a nice change: NNE offshore wind at 9 mph, 3 ft from the SSE, 11-second period, combined energy at 193. Clean conditions with gentle offshore wind – this is the best small-wave window for a cruiser session. The afternoon stays similar but drops to 3 ft.

Saturday the 19th morning goes glassy – WSW wind at 3 mph, 2 ft from the S, energy at 47. Tiny but perfect if you’ve got a longboard. Afternoon gets a light cross-onshore, so morning’s your window.

Sunday the 20th through Monday the 21st stays small and not worth chasing – 2 ft to 3 ft from the E, light winds but nothing exciting.

Honestly, the only true standout here is Friday the 18th morning. The offshore wind, clean conditions, and just enough SSE swell to make it fun. If you’re chasing bigger but messier waves, Thursday the 17th morning has some energy, but it’s a bit of a gamble with the cross-shore wind. For the rest, keep your expectations low.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 13°C on Tue morning, min 6°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Wed afternoon, min 10°C on Wed morning). Winds increasing (calm on Wed morning, strong winds from the SE by Fri morning).

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
2
1
1
1
1
1
0
1
1
1
0
0
0
0
0
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)
2.1
S
9
1.8
SSE
10
1.5
SSE
9
1.2
SSE
9
1.1
SSE
9
1
SSE
9
0.9
SSE
9
0.6
ESE
11
0.4
ESE
10
0.3
SSE
12
0.3
SSE
16
0.5
S
13
0.4
SSE
12
0.4
S
11
0.4
S
10
0.4
S
10
0.3
S
9
2
ESE
7
2.2
ESE
7
2.5
ESE
8
2.3
ESE
8
Wave Graph
Metric surfscale
Energy kJ
660
614
359
227
190
144
148
79
37
27
48
90
46
37
30
29
14
361
490
750
613
Wind (km/h)
25
S
20
S
0
NE
10
NNW
5
ESE
15
NNE
10
N
10
E
15
NNE
10
NNW
5
E
5
NNE
5
W
10
SSE
15
ESE
35
SE
35
SE
30
SE
35
SE
25
SE
15
ESE
Wind State
on
on
glassy
cross-off
glassy
off
cross-off
cross-off
off
cross-off
cross-off
off
glassy
cross-on
cross
cross-on
cross
cross
cross
cross
cross
High Tide
2:46PM0.36m
3:45AM0.19m
3:58PM0.34m
4:47AM0.20m
5:10PM0.33m
5:43AM0.23m
6:16PM0.32m
6:35AM0.26m
7:15PM0.31m
7:24AM0.29m
8:08PM0.29m
8:10AM0.32m
8:58PM0.28m
Low Tide
9:48AM0.17m
11:26PM0.04m
6:48AM0.14m
00:29AM0.05m
8:32AM0.15m
12:15PM0.13m
1:29AM0.07m
1:29PM0.09m
2:25AM0.08m
2:35PM0.06m
3:15AM0.10m
3:33PM0.03m
4:02AM0.11m
4:26PM0.01m
00:27AM0.20m
cloud
part cloud
part cloud
clear
part cloud
cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:50
6:48
6:47
6:46
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:23
6:24
6:24
6:25
6:27
6:27
 mm
Temp °C
8
8
8
9
10
11
13
13
11
14
15
12
15
15
13
11
10
11
11
12
11
Feels °C
1
2
5
6
7
6
10
10
8
13
13
10
13
12
10
3
2
3
3
5
6
  • Map Icons:
  • Break
  • 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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