Surf Forecasts:
Bikini surf forecast from 13 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 6PM (local time) - 4ft (1.2m), 8s period, S swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 12AM (local time) - 5.5ft (1.7m), 12s period, SE swell with 892 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 3AM (local time) - 4.5ft (1.3m), 6s period with E 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 Sunday (Aug 16) at 3AM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.5m and 9s. 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 1.7m 12s and forecast to arrive on Friday (Aug 14) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Saturday (Aug 15) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 16th Aug) | 4.5ft (1.3m) 6s |
| Best Surf | 6PM (Tue 18th Aug) | 4ft (1.2m) 8s |
| Most Powerful | 12AM (Fri 14th Aug) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s happening for the Bikini stretch.
I’m not gonna sugarcoat it – the first week and a half is pretty much a washout. We’re looking at a long stretch of poor surf, with only a couple of windows that might actually get you a wave worth remembering. The first real chance you’ve got to paddle out doesn’t come until Monday morning, the 24th of August, and even then, it’s not a day to write home about.
The main spot is Bikini, a beach and point break that’s open to the south. For the first week, the wind is the enemy – mostly cross or onshore, often strong, and the swell is a messy, short-period affair. The water temp is about average for this time of year, nothing out of the ordinary.
The first decent window is Monday morning, the 24th of August. We’ve got a 3ft swell from the south, with a period of 10 seconds, and a moderate combined energy of 295. The wind is light from the east, cross-offshore, and it’s clean. It’s surfable, but don’t expect any barrels. It’s your best bet for a paddle in the first half of the week.
Then, on Tuesday morning, the 25th of August, things get a little more interesting. The swell drops to 3ft, still from the south-southeast, but the period jumps to 11 seconds – that’s real groundswell energy. The combined energy is 190, so it’s a bit weaker, but the wind is light and cross-off again, keeping it glassy. This longer period will give the waves more push and shape, and at a point break like Bikini, that’s a good thing. It’s a solid option for a more experienced surfer on a clean board.
After that, the forecast goes south again. The wind picks up, the swell gets choppy, and by the 28th, it’s a fresh cross-onshore mess with only 3ft and a combined energy of 115. Not worth the drive.
So, if you’re in the Bikini area, aim for the mornings of the 24th and the 25th. Those are your two standouts. The rest of the 16-day window is a dry spell. It’s a long gap of poor conditions, but that’s just how it is sometimes. Keep an eye on the charts, because things can change, but for now, it’s a waiting game.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 13°C on Sat morning, min 8°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Sat night. Very mild (max 18°C on Sun morning, min 8°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 14 | S 12 | SSE 12 | SE 12 | SSE 12 | SSE 11 | SSE 10 | SSE 9 | E 6 | E 6 | E 8 | E 9 | E 9 | E 10 | E 11 | S 6 | S 7 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 571 | 319 | 512 | 892 | 404 | 249 | 133 | 92 | 144 | 136 | 172 | 185 | 207 | 188 | 192 | 110 | 211 | 208 | 133 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | on | cross-on | on | on | on | cross-on | off |
High Tide | 7:43AM0.26m | 8:16PM0.34m | 8:32AM0.29m | 9:10PM0.31m | 9:20AM0.31m | 10:02PM0.28m | 10:07AM0.32m | 10:53PM0.25m | 3:18AM0.20m | 11:44PM0.23m | 4:12AM0.20m | 00:37AM0.21m | |||||||
Low Tide | 3:39AM0.06m | 3:40PM0.07m | 4:28AM0.08m | 4:40PM0.04m | 5:15AM0.09m | 5:35PM0.02m | 1:35AM0.20m | 6:00AM0.11m | 6:28PM0.02m | 6:44AM0.12m | 7:19PM0.02m | 7:26AM0.14m | 8:09PM0.03m | ||||||
 |  |  | |  | |  | | |  | | | | | | |  | |  | |
 | — | 7:22 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — |
 | 6:05 | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — |
mm | — | — | 1 | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 11 | 12 | 11 | 12 | 12 | 12 | 13 | 13 | 15 | 18 | 15 | 12 | 10 | 10 | 10 | 9 | 10 | 9 |
Feels °C | 3 | 7 | 9 | 7 | 7 | 7 | 7 | 8 | 8 | 15 | 17 | 13 | 11 | 7 | 6 | 5 | 5 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | SSE 14 | S 12 | SSE 12 | SE 12 | SSE 12 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | E 8 | E 9 | E 9 | E 10 | E 11 | E 10 | S 7 | S 8 | S 8 |
| kJ | 571 | 319 | 512 | 892 | 404 | 249 | 133 | 92 | 65 | 47 | 172 | 185 | 207 | 188 | 192 | 74 | 153 | 208 | 133 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | SSE 9 | SSE 9 | S 8 | — | S 9 | — | E 10 | ENE 10 | ENE 9 |
| kJ | 1 | 1 | 1 | — | — | — | — | — | — | — | 27 | 25 | 5 | — | 6 | — | 48 | 31 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 11 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | — | — | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | — | — | — | S 4 | S 4 | S 6 | S 7 | — | — |
| kJ | 57 | 57 | — | — | 62 | 75 | 106 | 119 | 144 | 136 | — | — | — | 16 | 20 | 110 | 211 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 540 | 539 | 20 | 539 | 103 | 103 | 143 | 146 | 539 | 43 | 0 | 62 | 16 | 399 | 947 | 411 | 242 | 6 | 0 |
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.
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