Surf Forecasts:
Bikini surf forecast from 25 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 12AM (local time) - 5ft (1.6m), 14s period, SE swell with offshore winds.
- Most powerful swell: Wednesday 26 Aug, 9AM (local time) - 5ft (1.6m), 15s period, SE swell with 1,103 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 12AM (local time) - 5ft (1.6m), 14s period with SE 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 Wednesday (Aug 26) at 12AM. The primary swell is predicted to be 1.6m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Bikini in the next 16 days are 1.6m 15s and forecast to arrive on Wednesday (Aug 26) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Aug 26) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 26th Aug) | 5ft (1.6m) 14s |
| Best Surf | 12AM (Wed 26th Aug) | 5ft (1.6m) 14s |
| Most Powerful | 9AM (Wed 26th Aug) | 5ft (1.6m) 15s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down what’s in the water for the next couple of weeks. We’re looking at Bikini, a spot that’s advanced-level, very consistent, and exposed to the south. It’s a beach and point setup. The water’s about 52°, which is pretty much what you’d expect for this time of year.
The action starts on Tuesday, August 25th. The morning brings a clean 4ft swell from the SSE, with a moderate 382 units of energy. A light offshore breeze out of the NNE is keeping things tidy. The afternoon holds up with 4ft at 582 energy and a cross-offshore wind. It’s decent, but not the best of the run.
The real standout is Wednesday, August 26th. The morning kicks off with a 5ft SE swell, packing a strong 1103 units of energy. The period is a very long 15 seconds, so this is proper groundswell. At a point break, these long-period waves will wrap in beautifully, giving you long, clean walls. The wind is a clean cross-offshore from the NE at 12 mph. This is good, solid surf. At 5ft, it’s a bit much for beginners, and the power is real. This is for the experienced crew.
Thursday morning, the 27th, still has clean 3ft from the SE with a 13-second period and cross-off wind. It’s a nice follow-up, but the afternoon turns ugly with onshore wind and rain. The weekend goes flat and messy. From Friday the 28th through the start of September, the swell drops off to tiny, weak waves in the double-digit energy range. A few moments of clean surf, like the glassy Tuesday morning of September 1st, offer only 2ft of weak, short-period slop. It’s rideable, but nothing exciting. There’s a long stretch of several days with no real recommendations.
The second week is even quieter. A few tiny pulses from the south on September 5th and 6th bring only 1ft to 1.0ft with clean offshore winds, but it’s barely ankle-high. The only spike of interest is on Tuesday, September 9th, with a new 3ft SE swell and 109 units of energy, but it’s only 7-second windswell. It’s a promising but uncertain blip way out in the forecast.
So, the bottom line: Wednesday, August 26th, is your day. Hit Bikini in the morning for the best long-period swell and clean wind. Don’t miss it.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Thu morning. Very mild (max 16°C on Wed afternoon, min 5°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Sun afternoon, min 11°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 11 | SE 15 | SE 14 | SE 15 | SE 15 | SE 14 | SE 13 | SE 12 | SE 11 | SSE 11 | SE 10 | E 10 | E 10 | E 9 | SE 10 | E 9 | E 9 | E 10 | E 10 | E 9 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 359 | 316 | 1016 | 1103 | 940 | 532 | 326 | 209 | 101 | 180 | 25 | 70 | 89 | 60 | 4 | 61 | 60 | 89 | 89 | 83 | 55 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-off | cross-off | off | cross-off | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | off |
High Tide | 5:56PM0.28m | 6:56AM0.20m | 6:44PM0.28m | 7:20AM0.21m | 7:29PM0.28m | 7:48AM0.23m | 8:12PM0.28m | 8:19AM0.25m | 8:55PM0.27m | 8:54AM0.28m | 9:38PM0.26m | 9:32AM0.31m | 10:22PM0.25m | ||||||||
Low Tide | 9:42AM0.17m | 2:10AM0.09m | 1:43PM0.16m | 2:54AM0.10m | 2:44PM0.14m | 3:35AM0.11m | 3:36PM0.11m | 4:15AM0.12m | 4:24PM0.08m | 00:58AM0.19m | 4:55AM0.13m | 5:12PM0.06m | 00:56AM0.19m | 5:35AM0.15m | 5:59PM0.04m | 1:25AM0.18m | |||||
 |  |  | | |  |  | |  | |  | | | |  | | | | | | | |
 | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — |
 | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — |
mm | — | — | — | — | — | 3 | 5 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 7 | 9 | 8 | 13 | 16 | 14 | 16 | 13 | 11 | 12 | 12 | 11 | 13 | 13 | 11 | 13 | 14 | 12 | 14 | 15 | 12 |
Feels °C | 3 | 5 | 3 | 8 | 12 | 13 | 16 | 10 | 8 | 8 | 8 | 8 | 10 | 10 | 9 | 10 | 11 | 10 | 11 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SSE 10 | SE 14 | SE 15 | SE 15 | SE 14 | SE 13 | E 8 | E 8 | E 8 | E 10 | E 10 | E 10 | E 9 | ENE 9 | E 9 | SE 9 | S 6 | S 6 | S 5 | E 8 |
| kJ | 359 | 316 | 1016 | 1103 | 940 | 532 | 326 | 89 | 71 | 51 | 49 | 70 | 89 | 60 | 17 | 61 | 3 | 1 | 1 | 1 | 55 |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 15 | — | — | — | — | E 7 | SE 12 | SE 11 | — | SE 10 | SE 10 | SE 9 | SSE 4 | SE 10 | SE 9 | S 7 | SE 10 | S 9 | — | S 5 |
| kJ | 8 | 266 | — | — | — | — | 76 | 209 | 101 | — | 25 | 15 | 13 | 4 | 4 | 3 | 1 | 4 | 2 | — | 1 |
Swell 3 Height (m) Direction Period (s) | SE 20 | — | — | — | — | — | — | — | — | — | S 8 | SSW 4 | S 7 | SE 9 | S 8 | S 7 | SE 9 | SE 10 | — | S 7 | S 7 |
| kJ | 15 | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 13 | 1 | 1 | 3 | 4 | — | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | ENE 4 | ENE 4 | ENE 6 | — | — | S 4 | SSE 11 | SE 4 | SE 5 | S 5 | — | E 6 | — | E 9 | E 10 | E 10 | E 9 | — |
| kJ | — | — | 6 | 9 | 18 | 74 | — | — | 10 | 180 | 21 | 21 | 11 | — | 25 | — | 60 | 89 | 89 | 83 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 20 | 20 | 0 | 0 | 62 | 253 | 242 | 436 | 143 | 288 | 424 | 288 | 0 | 60 | 0 | 0 | 60 | 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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