Bikini Surf Break

Lat Long: 34.88° S 54.77° W

Bikini Surf Forecast and Surf Report

Issued: 2 am 20 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 20 Aug 2026:

  • Best quality surf: Monday 24 Aug, 3AM (local time) - 6.5ft (2.0m), 14s period, SSE swell with glassy winds.
  • Most powerful swell: Sunday 23 Aug, 6PM (local time) - 8ft (2.4m), 15s period, SSE swell with 2,526 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 3AM (local time) - 6.5ft (2.0m), 14s 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 24) at 3AM. The primary swell is predicted to be 2.0m and 14s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Bikini in the next 16 days are 2.4m 15s and forecast to arrive on Sunday (Aug 23) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Aug 27) at 3AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 24th Aug)6.5ft (2.0m) 14s
Best Surf 3AM (Mon 24th Aug)6.5ft (2.0m) 14s
Most Powerful 6PM (Sun 23rd Aug)8ft (2.4m) 15s

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.

Right off the bat, don’t get your hopes up for the next few days. We’re starting with a real flat spell – Thursday the 20th is a write-off with tiny, weak slop and rain. Friday through Sunday the 21st to 23rd sees a solid pulse of south swell pushing through, but the wind is just hammering it onshore or straight on, making it a complete mess. That south swell gets up to 7ft with a very long period of 13 to 14 seconds, and the combined energy is massive (1617 to 2499), but with those winds, it’s not for paddling – honestly, this setup looks more interesting for kite surfing than paddle surfing.

The real window opens up on Monday the 24th of August. Bikini (Bikini) is a beach and point break, exposed to the south. The morning is the standout of the whole outlook. We’ve got a 6ft swell from the SSE, with a long period of 13 seconds (groundswell), and the magic ingredient – glassy conditions with a light SE breeze. The water temp is sitting at 51°F, which is about average for the time of year. This is excellent surf for experienced surfers, and the energy is strong (1025). The crowd situation here is often an issue, so expect some company in the lineup. That Monday morning is your best bet. The afternoon cleans up nicely with a cross-off breeze and 6ft waves, still very good.

Tuesday the 25th is still solid. A 4ft SSE swell with a 12-second period and a clean offshore NE breeze in the morning. Good, fun waves. The afternoon holds similar conditions with a 4ft swell. Wednesday the 26th is smaller but still clean with offshore winds, dropping to 3ft in the morning, but that long period of 14 seconds means it’ll have some push.

After that, things fade out. From Thursday the 27th onwards, we’re into a long, quiet stretch. The swell drops, the wind gets messy, and the energy disappears. There’s a gap of several days with no real recommendations. There’s a brief flicker of life on the 3rd of September with a 5ft south swell and offshore wind, but it’s a short-period windswell, and the conditions are just ordinary. The rest of the run into early September is mostly poor and not worth paddling out for.

So, to wrap it up: Monday the 24th of August is the clear winner. Get on it early. After that, it’s a long wait.

Rusty.

Short Range Forecast

Heavy rain (total 38mm), heaviest during Thu afternoon. Very mild (max 11°C on Thu night, min 7°C on Thu night). Winds increasing (light winds from the E on Thu morning, fresh winds from the SSW by Thu night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Tue afternoon, min 4°C on Sun night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
0
0
3
4
3
3
2
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
S
7
0.2
S
7
1.6
SSW
5
2.1
S
8
2
S
8
1.9
S
9
1.5
S
10
1.6
S
12
1.7
S
11
2.2
S
13
2.2
S
14
2.2
SSE
14
1.8
SSE
13
1.7
SSE
12
1.5
SSE
12
1.3
SSE
12
1.2
SSE
11
1
SSE
11
0.8
SE
14
1.1
SE
13
1
SE
13
Wave Graph
Metric surfscale
Energy kJ
14
4
138
545
529
606
432
702
734
1617
1840
1886
1025
861
614
446
353
226
238
406
331
Wind (km/h)
10
E
20
SSE
35
SSW
30
SSW
30
SSW
20
SW
25
WSW
30
WSW
20
W
25
S
20
S
10
SSE
5
SE
10
E
15
NNE
15
NE
15
NNE
15
NNE
10
N
15
NNW
10
NE
Wind State
cross-off
cross-on
on
on
on
on
cross-on
cross-on
cross
on
on
cross-on
glassy
cross-off
off
off
off
off
off
cross-off
off
High Tide
1:20PM0.30m
2:50AM0.18m
6:45AM0.19m
2:12PM0.29m
7:42AM0.19m
3:08PM0.28m
5:58AM0.18m
4:07PM0.28m
6:10AM0.18m
5:03PM0.28m
6:33AM0.19m
5:56PM0.28m
6:56AM0.20m
6:44PM0.28m
Low Tide
9:47PM0.06m
4:18AM0.18m
10:38PM0.07m
9:43AM0.18m
11:32PM0.07m
6:50AM0.18m
00:27AM0.08m
8:42AM0.18m
1:21AM0.08m
9:42AM0.17m
2:10AM0.09m
1:43PM0.16m
2:54AM0.10m
heavy rain
heavy rain
part cloud
part cloud
cloud
part cloud
clear
clear
clear
cloud
clear
part cloud
cloud
part cloud
clear
cloud
cloud
part cloud
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:11
7:11
7:09
7:09
7:07
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:12
6:12
6:13
6:14
6:15
6:15
 mm
15
23
Temp °C
10
9
11
9
8
9
8
9
9
8
8
6
6
8
7
10
13
12
17
20
17
Feels °C
7
5
6
1
0
3
0
1
3
2
2
2
3
4
2
5
10
9
15
18
16
  • 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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