
Surf Forecasts:
Bikini surf forecast from 9 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 9PM (local time) - 5ft (1.5m), 11s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 12 Aug, 6PM (local time) - 5.5ft (1.7m), 14s period, SSE swell with 1,068 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 9PM (local time) - 5ft (1.5m), 11s 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 (Aug 11) at 9PM. The primary swell is predicted to be 1.5m and 11s period with a secondary swell of 0.1m and 10s. 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 14s and forecast to arrive on Wednesday (Aug 12) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Saturday (Aug 15) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 11th Aug) | 5ft (1.5m) 11s |
| Best Surf | 9PM (Tue 11th Aug) | 5ft (1.5m) 11s |
| Most Powerful | 6PM (Wed 12th Aug) | 5.5ft (1.7m) 14s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s get into it.
The next couple of weeks are a real mixed bag for us. The first week is a bit of a write-off, with messy winds and lumpy conditions spoiling the fun. Things start to look up towards the end of the period, but it’s a long wait. There’s no surf worth paddling out for until Tuesday, August 11th, so a few days of flat or junk to sit through.
Let’s start with Bikini. It’s an exposed beach and point break, and it takes a south swell. The water is sitting at a touch warmer than normal for this time of year, around 54°.
The first real chance to get wet comes Tuesday, August 11th. Early morning we’ve got a 6 ft SSE swell with a 12-second period. The combined swell energy is moderate at 767, and the wind is a light cross-onshore. It’s still pretty average, scoring marginal at best. The afternoon cleans up a bit though – the wind shifts to a gentle cross-shore and the swell bumps up a fraction to 5 ft SSE, with a longer 12-second period. The energy climbs to 1150, which is solid. The cross-shore wind is slight, so you’ll have some chop but it’s the best of a bad bunch for the day. It’s still only a marginal call, but you could get some.
Wednesday morning, August 12th, looks like the true standout of this first week. The wind goes cross-offshore and light, making for clean waves. The swell is a 5 ft SSE at 11 seconds, with moderate energy (479). It’s not big, but the conditions will be good for a surf. The break is advanced level and can be crowded, so expect some company.
After that, we slide back into poor form. From Thursday through to Saturday, August 15th, it’s mostly cross-shore or onshore winds with small, weak swell. The energy drops into the low 100s and even down to 17 on August 20th. The wind picks up strongly again from the south-southwest on the 21st, and the swell is tiny and short-period – just 1 ft to 3 ft with 4 to 5-second periods. That’s barely a ripple.
There’s a long gap of nothing really recommended from Thursday, August 13th, right through to Saturday, August 22nd. The surf is just too poor to bother with.
The real promise comes in the second week. On Sunday, August 23rd, we start to see some life again. The morning brings a 6 ft S swell with a 12-second period and a light cross-shore wind. The energy is 809. It’s still a marginal call, but it’s better. Then Monday, August 24th, the swell builds to 6 ft SSE with a 13-second period, and the energy jumps to 1162. The wind goes cross-offshore, so the surf should be clean.
The best of the whole forecast looks to be Monday afternoon, August 24th. A 7 ft SSE swell with a very long 16-second period is forecast, with a massive combined energy of 2509. That’s a lot of juice. The wind is cross-offshore from the east-northeast, keeping things clean. At 7 ft, this is for advanced surfers only – it will be too big for beginners. The long period means it’s going to be powerful and hold up well at the point. It’s a stand-out, but it’s over a week away, so keep an eye on it.
Stay safe and pick your moments.
Rusty.
Short Range ForecastMostly dry. Very mild (max 10°C on Sun afternoon, min 6°C on Mon night). Winds decreasing (fresh winds from the WSW on Sun afternoon, light winds from the SSE by Mon night). | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Thu afternoon. Very mild (max 14°C on Sat morning, min 8°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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) | SW 6 | SSW 8 | SSW 8 | S 11 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 12 | SSE 14 | S 13 | SSE 12 | SSE 11 | S 11 | SSE 11 | S 10 | E 7 | E 6 | S 9 |
Wave Graph | ||||||||||||||||||||
247 | 480 | 373 | 821 | 953 | 767 | 660 | 477 | 477 | 454 | 721 | 334 | 224 | 119 | 251 | 191 | 96 | 94 | 100 | 39 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-on | glassy | cross-off | cross-off | cross-off |
High Tide | 4:10PM0.38m | 5:11AM0.19m | 5:17PM0.38m | 6:04AM0.20m | 6:21PM0.38m | 6:54AM0.23m | 12:07PM0.13m | 7:20PM0.36m | 7:43AM0.26m | 8:16PM0.34m | 8:32AM0.29m | 9:10PM0.31m | 9:20AM0.31m | 10:02PM0.28m | ||||||
Low Tide | 00:46AM0.02m | 8:25AM0.13m | 1:48AM0.03m | 9:38AM0.12m | 1:13PM0.13m | 2:46AM0.04m | 10:49AM0.12m | 2:33PM0.10m | 3:39AM0.06m | 3:40PM0.07m | 4:28AM0.08m | 4:40PM0.04m | 5:15AM0.09m | 5:35PM0.02m | 1:35AM0.20m | |||||
— | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:18 | — | — | |
6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | 8 | 4 | 6 | 1 | — | — | — | — | — | — |
Temp °C | 10 | 10 | 9 | 8 | 7 | 6 | 7 | 7 | 10 | 10 | 9 | 9 | 10 | 11 | 12 | 12 | 13 | 14 | 15 | 14 |
Feels °C | 1 | 2 | 3 | 3 | 4 | 3 | 3 | 4 | 5 | 5 | 3 | 4 | 6 | 9 | 10 | 10 | 13 | 12 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SSE 12 | SSE 11 | — | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 12 | SSE 14 | S 13 | SSE 12 | SSE 11 | S 11 | SSE 11 | S 10 | S 9 | S 9 | S 9 |
71 | 52 | 135 | — | 953 | 767 | 660 | 477 | 477 | 454 | 721 | 334 | 224 | 119 | 251 | 191 | 96 | 63 | 59 | 39 | |
Swell 2 Height (m) Direction Period (s) | E 10 | E 9 | E 8 | — | — | — | SSE 13 | E 10 | E 9 | SSE 14 | E 8 | E 8 | — | SSE 13 | E 6 | E 7 | SE 7 | — | — | — |
2 | 1 | 1 | — | — | — | 489 | 2 | 2 | 239 | 1 | 1 | — | 90 | 21 | 24 | 29 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | E 8 | — | — | E 8 | — | — | — | — | — | — | SE 7 | — | — | — |
— | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | 49 | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 6 | SSW 8 | SSW 8 | S 11 | — | — | — | — | — | — | SE 5 | SE 5 | SE 5 | SE 5 | ESE 5 | SE 6 | E 7 | E 7 | E 6 | E 6 |
247 | 480 | 373 | 821 | — | — | — | — | — | — | 73 | 66 | 58 | 77 | 19 | 33 | 85 | 94 | 100 | 159 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 147 | 150 | 253 | 242 | 150 | 242 | 143 | 0 | 0 | 539 | 436 | 539 | 436 | 436 | 103 | 103 | 0 | 0 | 436 | 436 |
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.











