Surf Forecasts:
Bikini surf forecast from 7 Sep 2026:
- Best quality surf: Monday 14 Sep, 12AM (local time) - 5ft (1.5m), 11s period, ESE swell with offshore winds.
- Most powerful swell: Saturday 12 Sep, 6AM (local time) - 10ft (3.0m), 8s period, S swell with 1,299 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 12AM (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 12AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.4m 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 3.0m 8s and forecast to arrive on Saturday (Sep 12) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Sep 11) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 8th Sep) | 3.5ft (1.0m) 9s |
| Best Surf | 12AM (Mon 14th Sep) | 5ft (1.5m) 11s |
| Most Powerful | 6AM (Sat 12th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
G’day, Rusty here again, looking at the same stretch of water but speaking in feet, miles per hour, and degrees Fahrenheit for you imperial folks.
Right off the bat, the first few days are flat and forgettable. Monday the 7th, there’s a 4ft SSE swell with a 9-second period, but it’s weak energy (228) and the wind’s light out of the NW—cross-off. Water’s about 55°, which is a bit warmer than usual for this time of year, nothing crazy. Don’t get your hopes up for Tuesday or Wednesday—it drops to a knee-high dribble, and the 0.3m is basically a 1ft slop. That’s a gap of several days where you’re better off doing chores.
Then the ocean loses its mind. Friday night into Saturday the 12th, the swell gets to 10ft from the S, with a 9-second period, and the energy is a monstrous 1329. But the wind is howling at 35 km/h (about 22 mph) from the SSE—a fresh cross-onshore. It’s a washing machine. Saturday afternoon it’s still 7ft and lumpy. This is way over 8ft, so it’s only for the gun-slingers, and even they’ll be grumpy. Honestly, this setup looks better for kites than surfboards.
Sunday the 13th eases a touch to 6-7ft, with the wind going more easterly, making it cross-off by the arvo. Still lumpy, but there’s some push. Then, the gem: Monday morning the 14th. Swell is 4ft from the ESE with an 11-second period, and the wind is dead flat—glassy. Combined energy is 525, and it’s clean as a whistle. This is the standout. Bikini (Bikini) is a beach and point, very consistent, so it’ll be working. Crowds are possible, so get in the water early. This is the one to book off work for.
The middle of the next week goes bad again—fresh winds, choppy slop. The 16th brings a 8ft swell with a 13-second period and a huge 2073 energy, but it’s cross-onshore and chunky. Not it. Thursday the 17th is still big, 7ft, with long periods, but the wind is onshore. Another skip.
Friday the 18th is your second look. Swell is 5ft from the SSE with a 12-second period, and we’ve got a moderate offshore NE wind at 20 km/h (about 12 mph). Clean, with energy at 629. Solid and surfable, though not as glassy as the 14th. After that, it fades back to small stuff.
So, in plain terms: the 14th is your day—glass, clean, and a real wave. The 18th is your backup, with a bit more size and wind. Everything between is stormy chaos. Long-range is always a gamble, but I’m stoked on that Friday. That’s it from me—Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 14°C on Tue afternoon, min 5°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Fri afternoon. Very mild (max 15°C on Thu afternoon, min 9°C on Sat afternoon). Winds increasing (light winds from the NE on Thu morning, strong winds from the SSE by Fri night). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
AM | 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) | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 9 | SSE 12 | SSE 11 | SSE 16 | S 14 | SSE 12 | S 11 | S 10 | S 10 | ESE 5 | SSE 7 | S 9 | S 10 | SSE 10 | SSE 10 | SE 12 | ESE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 227 | 190 | 144 | 133 | 79 | 29 | 25 | 47 | 94 | 47 | 37 | 18 | 16 | 80 | 330 | 1218 | 876 | 998 | 763 | 671 | 573 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | off | off | cross-off | off | glassy | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off |
High Tide | 9:08AM0.16m | 3:58PM0.34m | 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 | 10:57AM0.15m | 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 | |||||
 | |  | |  |  | | | | | | |  |  |  | | | | | |  | |
 | 6:50 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | — | — | — | — | — | — |
Temp °C | 8 | 9 | 11 | 13 | 14 | 11 | 13 | 14 | 12 | 14 | 15 | 13 | 13 | 13 | 12 | 10 | 10 | 9 | 11 | 11 | 11 |
Feels °C | 5 | 6 | 6 | 10 | 10 | 7 | 11 | 10 | 8 | 11 | 11 | 10 | 9 | 8 | 5 | 2 | 3 | 3 | 6 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 8 | SSE 11 | S 12 | S 14 | SSE 12 | S 11 | S 10 | S 10 | E 9 | E 7 | ESE 9 | ESE 10 | ESE 12 | ESE 12 | SE 12 | ESE 11 |
| kJ | 227 | 190 | 144 | 133 | 79 | 22 | 25 | 24 | 94 | 47 | 37 | 18 | 16 | 1 | 61 | 111 | 327 | 347 | 365 | 671 | 573 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | ESE 4 | ESE 11 | SE 11 | SSE 12 | S 8 | SSE 16 | ENE 6 | ENE 7 | ENE 7 | — | E 7 | — | E 13 | — | — | — | — | S 10 | S 10 |
| kJ | 1 | 1 | 5 | 13 | 40 | 29 | 5 | 47 | 4 | 16 | 16 | — | 4 | — | 3 | — | — | — | — | 299 | 148 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 8 | E 8 | SE 10 | SE 9 | SE 8 | E 8 | — | — | — | E 14 | — | — | — | — | — | — | — | E 10 |
| kJ | — | — | — | 1 | 1 | 15 | 12 | 3 | 5 | — | — | — | 4 | — | — | — | — | — | — | — | 8 |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | — | ENE 3 | E 4 | — | E 5 | ENE 3 | — | — | E 4 | E 4 | ESE 5 | SSE 7 | S 9 | S 10 | SSE 10 | SSE 10 | — | — |
| kJ | — | — | 5 | — | 1 | 7 | — | 4 | 5 | — | — | 10 | 16 | 80 | 330 | 1218 | 876 | 998 | 763 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 65 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 103 | 146 | 926 | 1202 | 756 | 974 | 1022 | 540 | 103 | 103 | 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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