Surf Forecasts:
Bikini surf forecast from 30 Aug 2026:
- Best quality surf: Monday 31 Aug, 9PM (local time) - 2.5ft (0.7m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 6AM (local time) - 10ft (3.0m), 11s period, S swell with 2,198 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 9PM (local time) - 2.5ft (0.7m), 8s 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 Monday (Aug 31) at 9PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.1m and 5s. 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 11s and forecast to arrive on Sunday (Sep 06) at 6AM. 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 Thursday (Sep 03) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 31st Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 9PM (Mon 31st Aug) | 2.5ft (0.7m) 8s |
| Most Powerful | 6AM (Sun 6th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what Bikini is serving up over the next couple of weeks.
Right off the bat, I gotta be straight with you – it’s a tough stretch. There’s a big ol’ gap of flat, unrideable junk for the first few days. The water’s sitting at a warm 53°, which is bang on average for this time of year, so at least you won't need a thick suit if you’re just getting a tan.
The first real glimmer of hope comes on Wednesday morning, September 2nd. We’ve got a tiny pulse of 2 ft from the east with a period of 9 seconds, and the combined energy is a weak 55. It’s not much, but with a light NNE breeze going cross-offshore, it’ll be clean. By the afternoon, it goes glassy. This is a beginner-friendly size, but you’ll be fighting for scraps. Crowds are a real possibility here, so don’t expect a quiet session.
Thursday the 3rd sees a bump in energy to 128, with 3 ft east swell and a 10-second period, but the wind swings around. It’s not a write-off, but nothing to get excited about. Then we hit a proper wall from Friday the 4th through the weekend. The swell gets bigger, hitting 7 ft on Saturday the 5th with a strong energy reading of 469, but it’s all onshore, messy, and blown-out. That’s expert-only territory, and honestly, it looks more like a kite-surfing setup than a paddle session.
We get a brief respite on Monday the 7th with a 3 ft SSE swell and clean conditions thanks to a light NE breeze. It’s surfable but ordinary. After that, the energy drops right off again, leaving us with tiny, weak pulses for the second week. A 2 ft south swell on the morning of Tuesday the 8th with light offshore NNE wind will be clean, but you’ll be on a log or a longboard. There’s a little spike in energy on Friday the 11th with 3 ft from the east, but the wind is messy.
Honestly, if you’re looking for a standout, it’s that Wednesday afternoon, September 2nd, at Bikini. It’s tiny, but it’s the only time the stars align with glassy conditions and a tiny wave. For the long-range stuff, the bigger swells in the second week are just too wind-affected to recommend.
This is one of those stretches where the forecast can change, but as it stands, keep your expectations low.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sun afternoon, min 10°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Very mild (max 19°C on Wed afternoon, min 9°C on Sat morning). Winds increasing (calm on Fri morning, fresh winds from the WSW by Sat morning). | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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) | SE 9 | SE 10 | S 6 | S 6 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | SSW 6 | SSW 7 | S 8 | S 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3 | 4 | 1 | 1 | 50 | 64 | 66 | 71 | 55 | 55 | 87 | 96 | 96 | 71 | 30 | 20 | 130 | 456 | 512 | 1130 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross-off | cross-on | on | glassy | off | cross-off | cross-off | cross | cross-on | cross | glassy | on | glassy | cross-on | on | on |
High Tide | 9:38PM0.26m | 9:32AM0.31m | 10:22PM0.25m | 3:38AM0.20m | 11:07PM0.23m | 4:37AM0.20m | 11:54PM0.21m | 5:35AM0.20m | 00:45AM0.20m | 6:34AM0.19m | 12:40PM0.37m | 1:39AM0.18m | 7:32AM0.18m | 1:39PM0.37m | 2:40AM0.18m | |||||
Low Tide | 5:12PM0.06m | 00:56AM0.19m | 5:35AM0.15m | 5:59PM0.04m | 1:25AM0.18m | 6:14AM0.16m | 6:48PM0.02m | 6:53AM0.18m | 7:38PM0.01m | 7:32AM0.18m | 8:30PM0.01m | 3:29AM0.15m | 9:25PM0.01m | 4:22AM0.14m | 10:24PM0.02m | |||||
 |  |  | | | | |  | |  |  | |  | | | | | | |  | |
 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — |
 | 6:17 | — | — | 6:19 | — | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 |
Temp °C | 16 | 12 | 14 | 15 | 13 | 13 | 13 | 11 | 16 | 19 | 16 | 14 | 13 | 12 | 13 | 12 | 10 | 10 | 8 | 8 |
Feels °C | 12 | 8 | 10 | 11 | 11 | 11 | 10 | 10 | 13 | 15 | 13 | 11 | 10 | 11 | 10 | 9 | 8 | 4 | -2 | -2 |
Swell 1 Height (m) Direction Period (s) | SE 9 | ENE 8 | ENE 9 | ENE 8 | S 5 | E 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | S 5 | ESE 10 | ESE 10 | ESE 10 | E 9 | E 9 |
| kJ | 3 | 24 | 26 | 24 | 1 | 64 | 66 | 71 | 55 | 55 | 87 | 96 | 96 | 71 | 12 | 18 | 10 | 9 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 6 | S 6 | S 6 | S 5 | S 7 | — | S 6 | S 6 | SE 4 | S 8 | S 7 | S 7 | SW 4 | E 10 | ENE 9 | ENE 9 | E 9 | E 10 | — |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 | 4 | 8 | 30 | 8 | 8 | 6 | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | SE 10 | — | — | — | — | — | — | S 7 | S 7 | S 7 | — | — | S 6 | S 8 | S 13 | — | — | — | — |
| kJ | — | 4 | — | — | — | — | — | — | 1 | 1 | 1 | — | — | 1 | 1 | 13 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 9 | E 4 | ENE 4 | E 4 | E 8 | — | — | — | — | WNW 2 | NW 4 | WNW 4 | SW 4 | — | — | S 5 | SSW 6 | SSW 7 | S 8 | S 8 |
| kJ | 39 | 7 | 6 | 15 | 50 | — | — | — | — | 1 | 10 | 17 | 16 | — | — | 20 | 130 | 456 | 512 | 1130 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 288 | 288 | 436 | 436 | 146 | 735 | 436 | 436 | 0 | 0 | 2 | 2 | 16 | 150 | 16 | 266 | 434 | 0 | 62 | 939 |
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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