
Surf Forecasts:
Bikini surf forecast from 3 Sep 2026:
- Best quality surf: Sunday 6 Sep, 9PM (local time) - 5ft (1.5m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 9AM (local time) - 6ft (1.9m), 7s period, S swell with 345 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 9PM (local time) - 3ft (0.9m), 8s period with S 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 Friday (Sep 04) at 9PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.3m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bikini in the next 16 days are 1.9m 7s and forecast to arrive on Sunday (Sep 06) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Sep 07) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 4th Sep) | 3ft (0.9m) 8s |
| Best Surf | 9PM (Sun 6th Sep) | 5ft (1.5m) 8s |
| Most Powerful | 9AM (Sun 6th Sep) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright, Rusty here, and I’ve been staring at the charts for the next couple of weeks. Let’s get into it.
First up, we’ve got Bikini, a solid beach and point setup that needs a south swell to really get going. The water is sitting at 55°F, which is a touch warmer than normal for this time of year – nothing crazy, but you’ll notice it’s a little more comfortable than usual.
The next few days are a write-off, honestly. We’re looking at a pretty grim run from Thursday the 3rd right through to Sunday the 6th. The wind is all over the shop, mostly cross-onshore, and the swell is short-period junk. Swell heights are bouncing between 3ft and 6ft, but the period is a weak 6 to 7 seconds, so it’s just lumpy, choppy, and messy. The combined wave energy is moderate but poorly directed, peaking around 329 on Sunday morning, but the wind ruins it. No good.
Then we get a bit of a breather. Monday the 7th morning is worth a look. The wind goes glassy – dead calm – with a 4ft southeast swell rolling in at 9 seconds. The energy is moderate (257), and it’s clean. This is a standout for the first week. It’s not huge, but it’ll be fun and clean. Expect crowds, though, because this spot is often busy. After that, the wind shifts and the swell drops off again, so grab that Monday session if you can.
The rest of the first week and into the second week is pretty ordinary. Tuesday the 8th has a clean morning with offshore wind, but the swell is tiny at 2ft. There’s a long gap of small, weak swell and cross-onshore winds until we get to Sunday the 13th.
Now, Sunday the 13th is the real standout of the whole run. The morning sees a clean 5ft south swell with a 10-second period, light offshore wind from the north, and the wave energy is strong (465). That’s a proper session. The afternoon holds 5ft at 11 seconds, with clean cross-offshore wind, and the energy jumps to 536. This is the best on offer – a solid groundswell, good shape, and clean conditions. But heads up, the south swell direction is a bit off from the optimum, so it might not be absolutely perfect, but it’ll be good.
Monday the 14th morning is also decent, with 5ft of short-period swell (6 seconds) and a moderate offshore wind. It’s clean, but that short period means it’ll be a bit dumpy. Still worth a paddle if you’re keen.
After that, the swell fades again. The rest of the second week is mostly small, with some clean conditions but very little power. There’s a pulse of very long-period swell on Thursday the 17th (15 seconds!) but it’s hammered by a strong 22 mph onshore wind, so it’s a mess – only for the hardcore or the kite crew.
But then, Friday the 18th morning is another glassy beauty. The wind is dead calm, the swell is 4ft at 13 seconds, and the energy is strong (541). That’s a long-period groundswell, which will be better at the point section of Bikini than the beach. It’s clean, it’s got push, and it’s a promising end to the outlook – though it’s a way off, so keep an eye on it.
Bottom line: Monday the 7th and Sunday the 13th are your best bets. The 13th is the pick of the litter. The rest is mostly small or blown out.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Very mild (max 14°C on Thu afternoon, min 8°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the SW by Sat afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Tue afternoon, min 7°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | E 11 | E 11 | SSW 6 | S 7 | S 7 | SSW 7 | SSW 6 | S 7 | S 7 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 10 | E 6 | E 6 | E 7 | E 7 |
Wave Graph | ||||||||||||||||||||
146 | 83 | 62 | 131 | 70 | 76 | 134 | 297 | 345 | 273 | 329 | 238 | 186 | 103 | 80 | 77 | 40 | 27 | 40 | 38 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | on | cross-on | on | glassy | cross-off | cross-off | off | off | off | cross-off | glassy | cross | cross-off |
High Tide | 00:45AM0.20m | 6:34AM0.19m | 12:40PM0.37m | 1:39AM0.18m | 7:32AM0.18m | 1:39PM0.37m | 2:40AM0.18m | 8:26AM0.17m | 2:46PM0.36m | 3:45AM0.19m | 3:58PM0.34m | 4:47AM0.20m | 5:10PM0.33m | 5:43AM0.23m | 6:16PM0.32m | |||||
Low Tide | 8:30PM0.01m | 3:29AM0.15m | 9:25PM0.01m | 4:22AM0.14m | 10:24PM0.02m | 5:26AM0.14m | 11:26PM0.04m | 6:48AM0.14m | 00:29AM0.05m | 8:32AM0.15m | 12:15PM0.13m | 1:29AM0.07m | 1:29PM0.09m | 2:25AM0.08m | ||||||
— | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | |
6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | |
mm | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 11 | 11 | 9 | 10 | 10 | 9 | 8 | 8 | 8 | 10 | 11 | 11 | 14 | 17 | 15 | 15 | 16 | 13 |
Feels °C | 8 | 11 | 5 | 6 | 7 | 4 | 2 | 2 | 1 | 3 | 5 | 7 | 7 | 8 | 10 | 13 | 13 | 14 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | ESE 10 | ESE 10 | S 7 | ESE 10 | SE 11 | SE 10 | E 9 | SSE 8 | E 8 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 10 | E 6 | E 6 | E 7 | E 7 |
146 | 83 | 35 | 20 | 70 | 11 | 4 | 4 | 2 | 273 | 1 | 238 | 186 | 103 | 80 | 77 | 40 | 27 | 40 | 38 | |
Swell 2 Height (m) Direction Period (s) | SSW 7 | WSW 4 | ENE 9 | S 14 | E 10 | E 9 | E 9 | E 9 | — | S 12 | SE 12 | SSE 11 | E 8 | S 15 | SSE 10 | SE 9 | S 8 | SSE 8 | SE 8 | SE 8 |
5 | 6 | 7 | 4 | 18 | 1 | 2 | 2 | — | 11 | 6 | 12 | 1 | 4 | 9 | 12 | 21 | 7 | 3 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | ENE 9 | — | S 14 | S 14 | SE 8 | SE 8 | — | — | E 9 | — | ENE 8 | E 8 | — | E 8 | — | SE 8 | S 8 | S 11 | S 15 |
— | 17 | — | 4 | 4 | 2 | 2 | — | — | 2 | — | 7 | 5 | — | 1 | — | 11 | 4 | 9 | 4 | |
Wind waves Height (m) Direction Period (s) | WSW 4 | SSW 5 | SSW 6 | S 7 | — | SSW 7 | SSW 6 | S 7 | S 7 | — | SSE 8 | — | — | ENE 4 | ENE 5 | E 5 | ENE 6 | — | — | ESE 2 |
30 | 19 | 62 | 131 | — | 76 | 134 | 297 | 345 | — | 329 | — | — | 39 | 38 | 36 | 68 | — | — | 1 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 109 | 67 | 242 | 253 | 0 | 62 | 896 | 150 | 253 | 434 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 56 | 938 | 0 |
Best forecast wave conditions in Uruguay - South | ||||||||||||||||||||
Best forecast wave conditions in Uruguay | ||||||||||||||||||||
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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.










