Surf Forecasts:
Bikini surf forecast from 19 Aug 2026:
- Best quality surf: Sunday 23 Aug, 9PM (local time) - 7.5ft (2.3m), 14s period, SSE swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 12PM (local time) - 10ft (3.0m), 13s period, S swell with 2,840 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 12AM (local time) - 1.5ft (0.5m), 7s 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 Thursday (Aug 20) at 12AM. The primary swell is predicted to be 0.5m and 7s period with a secondary swell of 0.4m and 8s. 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 3.0m 13s and forecast to arrive on Sunday (Aug 23) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Aug 24) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 20th Aug) | 1.5ft (0.5m) 7s |
| Best Surf | 9PM (Sun 23rd Aug) | 7.5ft (2.3m) 14s |
| Most Powerful | 12PM (Sun 23rd Aug) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the next 16 days for Bikini. Honestly, it’s a bit of a slow burn, but there’s a solid window coming up if you’re patient.
The first real week is pretty ordinary. We’ve got a few small, short-period swells, but the wind is messy and the conditions are just lackluster. There’s a real gap from now until around Monday the 24th where you’re better off doing something else. The swell energy is weak, mostly under 100 (a low 60 or even 28), with poor wind and choppy, onshore conditions. It’s not looking good for the weekend of the 22nd and 23rd, with a moderate to strong energy of 825 and 1543 popping up, but the wind is from the south and onshore, making it lumpy and tough. That swell is around 6 ft to 7 ft, but with the wind, it’s not for the faint-hearted.
Now, the standout. Come Monday morning, August 24th, Bikini (this is a beach and point setup) wakes up. The water temperature is sitting at 51°F, which is about 0.8°F cooler than normal for this time of year, so nothing wild. We’ve got a clean, 6 ft SSE groundswell, with a period of 13 seconds, rolling in. The wind is from the NNE at 6 mph, offshore, and it’s a light breeze. That’s the recipe for clean, lined-up waves. The combined energy is a solid 1041, which is strong, and the conditions are rated excellent for experienced surfers. This is the pick of the run. The break is very consistent, so you’ll get waves. The afternoon on Monday the 24th holds at 5 ft, still clean, with that same offshore breeze. That’s your best window.
After that, it fades fast. Tuesday the 25th morning has some clean 4 ft waves, but the wind turns cross-offshore, and the energy drops to 290. After that, it’s back to tiny, weak, and mostly messy for the rest of the forecast into early September. The last week is a real write-off, with energy in the teens and single digits, and onshore winds.
So, to sum it up: don’t get too excited about the next few days. The real action is Monday the 24th of August, with clean, solid groundswell. Get out there if you can handle a bit of size.
Rusty.
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu afternoon. Very mild (max 11°C on Wed afternoon, min 8°C on Thu night). Winds increasing (light winds from the ENE on Wed night, fresh winds from the SSW by Thu night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Tue morning, min 3°C on Mon morning). Winds decreasing (fresh winds from the WSW on Sat afternoon, light winds from the ESE by Sun night). | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | S 7 | S 7 | E 8 | SE 4 | SSW 5 | S 8 | S 8 | S 9 | S 10 | SSW 10 | S 11 | S 13 | SSE 14 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 38 | 23 | 35 | 22 | 77 | 446 | 408 | 561 | 573 | 703 | 708 | 1543 | 2110 | 1886 | 1041 | 766 | 605 | 290 | 214 | 128 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | on | on | on | on | cross-on | cross-on | cross-on | on | cross-on | off | off | off | off | cross-off | cross-on | cross-off |
High Tide | 1:36AM0.19m | 5:52AM0.19m | 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 | ||||||
Low Tide | 8:58PM0.04m | 3:45AM0.18m | 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 | |||||||
 |  |  | |  | |  |  |  | | | | |  | | | | | | | |
 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — |
 | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — |
mm | — | 2 | 13 | 23 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 10 | 10 | 10 | 11 | 8 | 9 | 9 | 8 | 9 | 10 | 8 | 6 | 5 | 8 | 12 | 10 | 13 | 15 | 14 |
Feels °C | 8 | 8 | 7 | 7 | 6 | 0 | 1 | 2 | 2 | 2 | 4 | 1 | 1 | 2 | 4 | 9 | 6 | 10 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | ENE 8 | E 5 | ENE 8 | E 8 | E 8 | E 8 | SSE 12 | S 11 | — | SSE 14 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 |
| kJ | 38 | 23 | 14 | 7 | 9 | 6 | 5 | 1 | 1 | 121 | 708 | — | 2110 | 1886 | 1041 | 766 | 605 | 290 | 214 | 128 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 8 | SE 13 | SE 12 | E 8 | — | — | — | E 8 | E 8 | — | — | — | — | — | — | — | — | ENE 4 | ENE 4 |
| kJ | 15 | 23 | 6 | 6 | 1 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 14 | SE 13 | SSE 6 | — | SE 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 7 | 8 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | E 8 | SE 4 | SSW 5 | S 8 | S 8 | S 9 | S 10 | SSW 10 | WSW 5 | S 13 | — | — | — | — | NE 4 | NE 4 | NE 4 | NNE 4 |
| kJ | — | — | 35 | 22 | 77 | 446 | 408 | 561 | 573 | 703 | 42 | 1543 | — | — | — | — | 10 | 2 | 2 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 160 | 150 | 939 | 1029 | 150 | 62 | 150 | 62 | 253 | 150 | 0 | 0 | 0 | 0 | 0 | 2 | 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.
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