Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 2 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bikini sea temperature is
10.8°C
0.4° 

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: Thursday 27 Aug, 12AM (local time) - 4ft (1.2m), 14s period, SE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 26 Aug, 9PM (local time) - 4.5ft (1.4m), 14s period, SE swell with 721 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 12AM (local time) - 4ft (1.2m), 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 Thursday (Aug 27) at 12AM. The primary swell is predicted to be 1.2m and 14s period. 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 1.4m 14s and forecast to arrive on Wednesday (Aug 26) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (Aug 31) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Thu 27th Aug)4ft (1.2m) 14s
Best Surf12AM (Thu 27th Aug)4ft (1.2m) 14s
Most Powerful 9PM (Wed 26th Aug)4.5ft (1.4m) 14s

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


The Lowdown

Gather 'round, crew. Let's talk about our wave window for the next couple of weeks. I gotta be straight with you—this stretch is a quiet one for Bikini. The good news is, we've got a few moments that are worth paddling out for, but you'll need to be patient and pick your sessions carefully. The overall pattern is small, with a lot of onshore or cross-onshore junk in between. Don't expect any barnstormers, but there's a clean window or two to get a few fun ones.

The first real glimmer comes Thursday morning, 27th August. We've got a little 3 ft swell rolling in from the SE, with a period of 13 seconds—that's a sweet groundswell offering solid shape and energy. But the real kicker is the wind: glassy, NNE at just 3 mph. That's as good as it gets for clean conditions. Combined wave energy sits at 376 (moderate), so there's some push behind it. It's an advanced wave, and Bikini is a consistent spot, so you'll be sharing the lineup (crowds are often), but for a Thursday morning, it might be a little quieter than a weekend. This is your standout window. The water temp is sitting at 51°F, which is about normal for this time of year, so no surprises there.

After that, things get messy. Thursday afternoon through to the end of the month, we're looking at a mix of small, weak swells and cross-on winds. The combined energy drops off a cliff, down to 60 or even 5. It's a dead spell. Even the clean spells on the 30th and 31st have nearly no swell to work with—0.3 ft to 2 ft with next to no energy. You'll be sitting on a board for nothing.

We get a tiny flicker on the 3rd of September. Thursday morning brings a 3 ft SE swell, period at 9 seconds, with a light offshore N wind at 6 mph. The energy is 125 (moderate), and the water is clean. It's not a standout, but it's surfable and ordinary. The Thursday afternoon is even glassier with SE wind at 3 mph, and a 2 ft S swell. Again, small, but clean. The 4th of September Friday morning is also glassy with a 2 ft S swell, period 11 seconds, but it's tiny. These are just "get a few in" sessions.

Then we hit another gap. From the 5th through to the 8th, it's a wasteland of cross-onshore and onshore winds with swells under 2 ft. Not worth a paddle.

The next real chance doesn't come until the 9th of September. Wednesday morning is glassy with ENE wind at 3 mph, and a 2 ft S swell, period 10 seconds. It's small, but perfectly clean. Then Wednesday afternoon, the swell jumps to 5 ft from the SE, period 9 seconds, with a clean cross-off wind from E at 9 mph. The combined energy hits 336 (moderate to strong). The wave comment says "marginal surf forecast or questionable tide conditions," so keep that in mind—it might be a bit fat or shut down at certain tides. But it's the biggest, cleanest option in the second week.

Thursday 10th September morning pushes even bigger at 5 ft SE, period 9 seconds, with ENE wind at 12 mph, cross-off. Energy is 407 (moderate). Again, it's marginal, but for a bigger day, it might be your best bet for size. The afternoon gets windier (19 mph), so don't linger.

For the whole run, Bikini is a beach and point setup, very consistent, and exposed to S swell, which is fine for these SE swells. The optimum swell direction is S, so these SE swells are a little off-angle but still workable. If you're a beginner, the 5 ft and 5 ft days might be a bit much, but the 2 ft to 3 ft sessions are more manageable.

So, to sum it up: the best on offer is Thursday morning, 27th August: glassy, 3 ft SE groundswell, clean, and a solid window to get some waves. The second best is Wednesday 9th September afternoon: 5 ft SE, clean cross-off, but watch the tide. Everything else is a gamble or a sit-on-the-beach day.

Rusty.

Short Range Forecast

Light rain (total 9mm), mostly falling on Wed night. Very mild (max 15°C on Wed afternoon, min 10°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Tue morning, min 11°C on Sat night). Wind will be generally light.

Wed
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
2
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
SE
15
1.2
SE
14
1
SE
13
0.9
SE
12
0.8
E
9
0.9
SSE
11
0.8
SE
5
0.7
E
10
0.9
ESE
6
0.7
ESE
6
0.6
E
6
0.6
E
7
0.1
SE
10
0.1
SE
10
0.1
S
6
0.9
E
8
0.8
E
8
0.8
E
9
0.8
E
10
0.7
E
9
Wave Graph
Metric surfscale
Energy kJ
940
532
326
209
103
180
35
90
47
35
25
32
4
4
1
89
86
106
116
83
Wind (km/h)
25
NE
15
ENE
5
NNE
15
S
15
SE
15
SSE
20
SSE
15
SE
10
SSE
10
SE
10
NE
15
ENE
25
ENE
15
ENE
15
ENE
20
E
5
E
15
SSW
25
WSW
20
S
Wind State
cross-off
cross-off
glassy
cross-on
cross
cross-on
cross-on
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
on
cross-on
on
High Tide
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
3:38AM0.20m
11:07PM0.23m
Low Tide
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
6:14AM0.16m
6:48PM0.02m
part cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:03
7:01
7:01
7:00
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:15
6:16
6:16
6:17
6:19
6:20
 mm
5
4
Temp °C
15
14
14
13
11
13
13
12
13
13
11
14
14
12
15
15
13
16
13
12
Feels °C
10
13
14
11
10
8
9
9
9
10
8
10
9
8
13
12
12
11
6
8
  • 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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