Surf Forecasts:
Bikini surf forecast from 20 Aug 2026:
- Best quality surf: Monday 24 Aug, 3AM (local time) - 6.5ft (2.0m), 14s period, SSE swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 6PM (local time) - 8ft (2.4m), 15s period, SSE swell with 2,526 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 3AM (local time) - 6.5ft (2.0m), 14s 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 Monday (Aug 24) at 3AM. The primary swell is predicted to be 2.0m and 14s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bikini in the next 16 days are 2.4m 15s and forecast to arrive on Sunday (Aug 23) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Aug 27) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 24th Aug) | 6.5ft (2.0m) 14s |
| Best Surf | 3AM (Mon 24th Aug) | 6.5ft (2.0m) 14s |
| Most Powerful | 6PM (Sun 23rd Aug) | 8ft (2.4m) 15s |
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’s got cookin’ for us.
Right off the bat, don’t get your hopes up for the next few days. We’re starting with a real flat spell – Thursday the 20th is a write-off with tiny, weak slop and rain. Friday through Sunday the 21st to 23rd sees a solid pulse of south swell pushing through, but the wind is just hammering it onshore or straight on, making it a complete mess. That south swell gets up to 7ft with a very long period of 13 to 14 seconds, and the combined energy is massive (1617 to 2499), but with those winds, it’s not for paddling – honestly, this setup looks more interesting for kite surfing than paddle surfing.
The real window opens up on Monday the 24th of August. Bikini (Bikini) is a beach and point break, exposed to the south. The morning is the standout of the whole outlook. We’ve got a 6ft swell from the SSE, with a long period of 13 seconds (groundswell), and the magic ingredient – glassy conditions with a light SE breeze. The water temp is sitting at 51°F, which is about average for the time of year. This is excellent surf for experienced surfers, and the energy is strong (1025). The crowd situation here is often an issue, so expect some company in the lineup. That Monday morning is your best bet. The afternoon cleans up nicely with a cross-off breeze and 6ft waves, still very good.
Tuesday the 25th is still solid. A 4ft SSE swell with a 12-second period and a clean offshore NE breeze in the morning. Good, fun waves. The afternoon holds similar conditions with a 4ft swell. Wednesday the 26th is smaller but still clean with offshore winds, dropping to 3ft in the morning, but that long period of 14 seconds means it’ll have some push.
After that, things fade out. From Thursday the 27th onwards, we’re into a long, quiet stretch. The swell drops, the wind gets messy, and the energy disappears. There’s a gap of several days with no real recommendations. There’s a brief flicker of life on the 3rd of September with a 5ft south swell and offshore wind, but it’s a short-period windswell, and the conditions are just ordinary. The rest of the run into early September is mostly poor and not worth paddling out for.
So, to wrap it up: Monday the 24th of August is the clear winner. Get on it early. After that, it’s a long wait.
Rusty.
Short Range ForecastHeavy rain (total 38mm), heaviest during Thu afternoon. Very mild (max 11°C on Thu night, min 7°C on Thu night). Winds increasing (light winds from the E on Thu morning, fresh winds from the SSW by Thu night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Tue afternoon, min 4°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | S 7 | S 7 | SSW 5 | S 8 | S 8 | S 9 | S 10 | S 12 | S 11 | S 13 | S 14 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SE 14 | SE 13 | SE 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 4 | 138 | 545 | 529 | 606 | 432 | 702 | 734 | 1617 | 1840 | 1886 | 1025 | 861 | 614 | 446 | 353 | 226 | 238 | 406 | 331 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | on | on | on | on | cross-on | cross-on | cross | on | on | cross-on | glassy | cross-off | off | off | off | off | off | cross-off | off |
High Tide | 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 | 6:56AM0.20m | 6:44PM0.28m | |||||||
Low Tide | 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 | 1:43PM0.16m | 2:54AM0.10m | ||||||||
 | |  |  |  | |  | |  | | | | | | | | | | | | | |
 | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — |
 | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — |
mm | 15 | 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 10 | 9 | 11 | 9 | 8 | 9 | 8 | 9 | 9 | 8 | 8 | 6 | 6 | 8 | 7 | 10 | 13 | 12 | 17 | 20 | 17 |
Feels °C | 7 | 5 | 6 | 1 | 0 | 3 | 0 | 1 | 3 | 2 | 2 | 2 | 3 | 4 | 2 | 5 | 10 | 9 | 15 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | S 7 | ENE 8 | E 5 | E 7 | E 8 | E 8 | S 10 | S 12 | S 11 | — | S 14 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SE 13 | SE 13 |
| kJ | 14 | 13 | 4 | 4 | 1 | 1 | 432 | 702 | 734 | — | 1840 | 1886 | 1025 | 861 | 614 | 446 | 353 | 226 | 143 | 406 | 331 |
Swell 2 Height (m) Direction Period (s) | E 5 | S 7 | E 8 | — | — | — | — | — | — | — | SSE 16 | — | — | — | — | — | SSE 15 | SE 15 | SE 14 | — | — |
| kJ | 5 | 3 | 5 | — | — | — | — | — | — | — | 659 | — | — | — | — | — | 21 | 134 | 238 | — | — |
Swell 3 Height (m) Direction Period (s) | ENE 8 | SSW 6 | SE 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 4 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 3 | SSW 5 | S 8 | S 8 | S 9 | WSW 4 | WSW 5 | W 5 | S 13 | — | — | — | — | — | — | NE 3 | ENE 4 | NE 4 | ENE 5 | ENE 5 |
| kJ | — | 4 | 138 | 545 | 529 | 606 | 26 | 59 | 40 | 1617 | — | — | — | — | — | — | 2 | 11 | 4 | 7 | 23 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 813 | 675 | 717 | 253 | 1029 | 150 | 62 | 150 | 16 | 150 | 540 | 109 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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