Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 2 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
12.3° C
1.5° 

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


Bikini surf forecast from 31 Jul 2026:

  • Best quality surf: Monday 3 Aug, 12PM (local time) - 3ft (0.9m), 11s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Saturday 1 Aug, 12AM (local time) - 4.5ft (1.3m), 8s period, E swell with 234 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 12AM (local time) - 1.5ft (0.4m), 12s 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 (Aug 03) at 12AM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.3m and 7s. 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 1.3m 8s and forecast to arrive on Saturday (Aug 01) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Friday (Jul 31) at 6PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 3rd Aug)1.5ft (0.4m) 12s
Best Surf12PM (Mon 3rd Aug)3ft (0.9m) 11s
Most Powerful12AM (Sat 1st Aug)4.5ft (1.3m) 8s

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


The Lowdown

Hey folks, Rusty here. Let’s get into it. The outlook for Bikini is a real mixed bag – a long stretch of tiny, messy waves, then a sudden, powerful pulse of swell in the second week that’s going to be something special for the right crew.

The water’s running a touch warmer than normal for the time of year, which is a nice bonus when you’re paddling out.

We start off with a pretty grim picture. From Friday, 31 July right through the first week of August, it’s all about poor surf. The swell is tiny, mostly under 3ft, and the energy is weak to moderate. The wind is a bit of a mess, often cross-off or cross-on, but the waves are just too small to do anything with. There’s a brief moment on Monday, 3 August, where the swell bumps up to 3ft from the SSE with moderate energy, and the wind is light and clean, but it’s still just surfable at best. The conditions are ordinary, not worth getting excited about.

After that, we get a few more days of waist-high slop, with the wind occasionally swinging offshore or going glassy, like on the 5th and 6th of August. Wednesday afternoon, 5 August, is a standout in this quiet period – the wind goes glassy, and the swell is a clean 2ft from the SSE. It’s tiny, but for a longboard or a foiler, it’d be a fun, uncrowded session. The energy is weak, but the glassy conditions will make it feel better than it is.

We hit a real dead zone from the 9th through the 12th of August. The swell drops to almost nothing, and onshore winds from the south make it choppy and unappealing. There’s no surf worth paddling out for.

Then, hold on to your board. The 13th of August, Thursday morning, the scene flips completely. A solid 8ft groundswell from the SSW arrives, with a short period of 8 seconds. The energy is strong. The wind is light offshore from the NNE, so it’ll be clean. This is big, powerful surf – over 8ft, so it’s for experts only. Bikini is a beach and point setup, so that longer period groundswell from the SSW will wrap nicely into the point, offering some proper, hollow waves. Expect it to be heavy.

The peak of the swell hits on the 14th of August. Friday morning is the standout of the entire forecast. We’re looking at a powerful 12ft swell from the south, with a very long period of 13 seconds. The combined energy is massive. The wind is light and cross-off from the NE, keeping the faces clean. This is a full-on, big-wave day. The swell direction from the south matches the optimum direction for Bikini, so the point will be firing. This is only for seasoned, experienced surfers. The energy is so strong it’s going to be a sight to see.

The swell stays big through the 15th of August, with 10ft waves from the SSE, but the period shortens to 13 seconds and the wind picks up to a fresh breeze. The energy is still very strong, but the conditions will be more challenging. It’s still big, but the wind will make it choppier and less clean than the previous day.

So, to wrap it up: the first week is a write-off, but the 13th and especially the 14th of August are the real deal. Get your big-wave board ready and be prepared for a serious session. The 14th is the one to aim for if you’ve got the skills.

Rusty.

Short Range Forecast

Heavy rain (total 35mm), heaviest during Fri night. Warm (max 21°C on Fri afternoon, min 8°C on Sat night). Mainly fresh winds.

Days 4-6 Weather Summary

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

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
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
0
0
0
0
0
0
1
1
1
0
0
0
1
1
1
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)
0.3
S
10
0.3
SSE
9
1.3
E
8
0.2
S
9
0.9
E
10
0.7
E
10
0.6
S
6
0.3
SSE
14
0.4
SSE
12
0.8
SSE
11
0.8
SSE
11
1
S
10
0.7
SSE
10
0.9
SSE
10
0.9
SSE
9
0.7
SSE
9
0.6
SSE
8
0.4
SE
8
0.4
SE
9
0.4
SE
9
0.5
SE
9
Wave Graph
Metric surfscale
Energy kJ
17
17
234
6
167
98
23
40
52
167
158
208
85
150
113
67
46
23
22
27
41
Wind (km/h)
35
NE
25
NNE
35
N
10
NNW
20
SSW
15
S
10
E
15
E
15
NE
10
ENE
10
E
10
S
15
S
15
S
5
NE
5
N
5
NNE
10
N
5
NW
15
ENE
15
NE
Wind State
off
off
off
cross-off
on
on
cross-off
cross-off
cross-off
cross-off
cross-off
on
cross-on
cross-on
off
cross-off
glassy
off
glassy
cross-off
off
High Tide
2:03PM0.17m
9:08PM0.28m
9:28AM0.24m
2:32PM0.16m
9:51PM0.27m
10:03AM0.25m
3:00PM0.15m
10:36PM0.26m
3:42AM0.20m
11:23PM0.24m
4:41AM0.20m
00:14AM0.22m
5:39AM0.21m
12:08PM0.32m
1:08AM0.21m
6:41AM0.20m
1:00PM0.34m
2:08AM0.19m
Low Tide
12:24PM0.16m
5:31AM0.10m
1:09PM0.16m
1:37AM0.19m
6:11AM0.12m
2:01PM0.15m
6:25PM0.09m
6:51AM0.14m
7:12PM0.07m
7:30AM0.16m
7:59PM0.05m
3:05AM0.17m
8:49PM0.03m
3:50AM0.17m
9:42PM0.02m
part cloud
part cloud
rain showers
mod rain
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:33
7:31
7:31
7:31
7:30
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:57
5:58
5:58
5:59
6:00
6:00
 mm
25
6
4
Temp °C
17
21
21
16
13
11
10
11
10
14
15
13
12
12
11
13
15
13
15
16
15
Feels °C
12
18
17
16
10
8
7
7
7
12
14
11
8
9
9
10
13
11
14
14
13
  • 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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