
Surf Forecasts:
Bikini surf forecast from 8 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 3AM (local time) - 3.5ft (1.0m), 9s period, SSE swell with offshore winds.
- Most powerful swell: Saturday 12 Sep, 3PM (local time) - 8ft (2.5m), 9s period, SSE swell with 951 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 3AM (local time) - 3.5ft (1.0m), 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 Tuesday (Sep 08) at 3AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.3m and 4s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Bikini in the next 16 days are 2.5m 9s and forecast to arrive on Saturday (Sep 12) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Sep 11) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 8th Sep) | 3.5ft (1.0m) 9s |
| Best Surf | 3AM (Tue 8th Sep) | 3.5ft (1.0m) 9s |
| Most Powerful | 3PM (Sat 12th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve got a look at what’s coming our way.
To be brutally honest, the next couple of weeks are a real mixed bag. We kick off with something on Tuesday morning the 8th, but honestly, it’s pretty weak. We’re looking at a south-southeast swell around 3ft with a short period of 9 seconds, and while the wind is offshore from the north at 6 mph, the combined energy is only 147 – that’s weak energy. The waves are clean, but there’s just not much push to them. Don’t expect much more than a knee-high dribble.
That little blip fades fast. Wednesday and Thursday see the swell drop to barely 1-2ft. The wind stays light and offshore in the mornings, which is nice, but there’s just no power. The combined energy values are down in the 40s and 90s. It’s a glassy, tiny situation.
Then we hit a rough patch. From Friday the 11th all the way through to Tuesday the 15th, it gets messy and blown out. Winds shift onshore and get strong, especially Saturday the 12th when a south-southeast wind hits 18 mph and the swell jumps to 8ft. The combined energy hits 835 (moderate) and 981 on Saturday afternoon, but with that wind it’s just a washing machine. This is strictly expert territory, and even then, the quality is terrible. Honestly, for a few days there, the beach and point setup at Bikini looks more interesting for kite surfing than paddle surfing given the wind and chop.
There’s a bit of a pause after that. Wednesday the 16th sees some messy cross-onshore wind again, but the swell is tiny.
The light at the end of the tunnel comes around Friday the 18th of September. We start to see a return of clean conditions. The morning has a gentle offshore wind from the north at 9 mph, with a 3ft south-southeast swell, period 9 seconds, and a combined energy of 116. Still small, but it’s clean again. The real standout is Saturday the 19th of September. The morning brings a clean, gentle offshore wind from the north-northeast. The swell drops to just 1ft, but the period stretches out to 13 seconds – that’s very long period groundswell. The combined energy is only 63 (weak), so it won't be powerful, but that long period will give it some shape. This is a promising but less certain call being a week and a half out. That kind of period tends to break better at the point setup at Bikini. It’s going to be clean, small, and for the advanced crew who can get the most out of a tiny wave.
The rest of the window just fizzes out into tiny, poor conditions with onshore wind.
So, the only real window to get excited about is that Saturday the 19th. It’s the cleanest, most promising wave of the whole 16-day run, even if it’s tiny. The rest we just have to wait out.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Thu afternoon, min 8°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Thu night, min 8°C on Sat afternoon). Winds increasing (light winds from the NE on Thu night, strong winds from the SSE by Fri night). | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | SSE 9 | SSE 9 | S 9 | SSE 12 | SSE 11 | SSE 16 | S 14 | SSE 12 | S 11 | S 10 | S 10 | ESE 4 | S 6 | S 8 | SSE 9 | S 9 | SSE 9 | SSE 9 | SSE 9 |
Wave Graph | |||||||||||||||||||
144 | 133 | 79 | 29 | 25 | 48 | 93 | 46 | 57 | 18 | 17 | 39 | 220 | 783 | 951 | 646 | 446 | 377 | 228 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross | cross | cross-on | cross-on | on | cross-on | cross-on | cross | cross-off |
High Tide | 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 | 8:56AM0.34m | 9:45PM0.26m | |||||||
Low Tide | 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 | 4:47AM0.12m | 5:16PM0.01m | 00:56AM0.19m | ||||
— | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | |
6:23 | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — | — | 6:28 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 12 | 13 | 11 | 13 | 14 | 12 | 14 | 15 | 13 | 13 | 13 | 12 | 10 | 8 | 9 | 9 | 9 | 10 |
Feels °C | 6 | 9 | 10 | 7 | 10 | 10 | 9 | 11 | 11 | 10 | 9 | 9 | 7 | 2 | 0 | 4 | 4 | 4 | 6 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | S 9 | S 8 | SSE 11 | S 12 | S 14 | SSE 12 | S 11 | S 10 | S 10 | S 9 | E 6 | E 7 | E 8 | E 8 | SSE 9 | SSE 9 | SSE 9 |
144 | 133 | 79 | 22 | 25 | 24 | 93 | 46 | 37 | 18 | 17 | 15 | 16 | 52 | 30 | 10 | 446 | 377 | 228 | |
Swell 2 Height (m) Direction Period (s) | E 8 | ESE 11 | SE 11 | SSE 12 | ESE 9 | SSE 16 | ENE 6 | ENE 7 | S 11 | — | E 7 | E 9 | E 13 | — | — | — | E 9 | E 9 | SE 11 |
1 | 13 | 56 | 29 | 16 | 48 | 7 | 17 | 57 | — | 4 | 1 | 3 | — | — | — | 7 | 6 | 5 | |
Swell 3 Height (m) Direction Period (s) | — | E 8 | — | SE 10 | S 8 | SE 8 | E 8 | — | — | — | E 14 | E 14 | — | — | — | — | — | — | E 10 |
— | 1 | — | 15 | 5 | 3 | 5 | — | — | — | 4 | 4 | — | — | — | — | — | — | 8 | |
Wind waves Height (m) Direction Period (s) | ENE 3 | — | ENE 3 | ENE 4 | — | E 5 | ENE 4 | — | ENE 7 | E 4 | E 4 | ESE 4 | S 6 | S 8 | SSE 9 | S 9 | — | — | — |
7 | — | 2 | 5 | — | 2 | 5 | — | 17 | 9 | 10 | 39 | 220 | 783 | 951 | 646 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 103 | 146 | 717 | 1360 | 939 | 941 | 540 | 424 | 242 | 436 | 103 |
Best forecast wave conditions in Uruguay - South | |||||||||||||||||||
Best forecast wave conditions in Uruguay | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










