Surf Forecasts:
Bikini surf forecast from 16 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 12AM (local time) - 6ft (1.9m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 23 Sep, 12AM (local time) - 6ft (1.9m), 14s period, S swell with 1,484 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 12AM (local time) - 3.5ft (1.1m), 9s 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 Thursday (Sep 17) at 12AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.1m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Bikini in the next 16 days are 1.9m 14s and forecast to arrive on Wednesday (Sep 23) 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 1.0m 5s period and expected on Friday (Sep 18) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 17th Sep) | 3.5ft (1.1m) 9s |
| Best Surf | 12AM (Wed 23rd Sep) | 6ft (1.9m) 14s |
| Most Powerful | 12AM (Wed 23rd Sep) | 6ft (1.9m) 14s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s shaping up for Bikini over the next couple of weeks.
First up, the water temp is sitting at 55°, which is running a touch warmer than normal for this time of year. Not a huge deal, but a nice little bonus for the first few sessions.
Right now, we’re looking at a rough start. Wednesday the 16th is a write-off, and honestly, the rest of this week is pretty flat and uninspiring. You’re not missing a thing until the tail end of next week. We’ve got a long gap of poor to marginal conditions stretching through until about the 22nd. The swell is tiny, the periods are short, and the wind is all over the place. It’s a real drought.
Things finally start to get interesting on Wednesday the 23rd of September. That’s the standout window. Early morning is where it’s at. We’ve got a solid 6ft swell rolling in from the SSE with a very long period of 13 seconds. That’s proper groundswell energy, and the combined energy reading is a strong 1031. The wind is offshore from the NNE, light, and the conditions are clean. This is excellent, but given the size and the long period, this is strictly for the experienced crew. This wave will have some serious punch and won’t be friendly to beginners. This is a point and beach setup, so the long period could make it a bit straight at the beach, but the point should handle it beautifully. Expect crowds to be likely here, as everyone will be gagging for a wave after the dry spell.
Thursday the 24th holds in nicely with similar-sized swell, and a clean morning with light offshore winds. The afternoon gets a bit cross-off, but still very good.
Then we see another little pulse late in the month. Tuesday the 29th of September looks promising again. Another 6ft swell from the S with a 13-second period, offshore NNE wind in the morning, and clean conditions. Combined energy is strong again at 1105. This is another excellent window for the experienced surfers.
Beyond that, into the start of October, it drops off quickly into onshore junk again, so don’t sleep on that last week of September.
Overall, the best of the best is the morning of Wednesday the 23rd of September at Bikini. Clean, offshore, and a solid long-period swell. For the pros only.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 7°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 9°C on Mon night). Winds increasing (light winds from the NE on Sun night, fresh winds from the SW by Mon night). | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SE 9 | S 12 | S 11 | E 9 | S 11 | S 9 | E 7 | E 8 | E 8 | E 8 | E 12 | SSW 6 | S 7 | S 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 116 | 251 | 225 | 146 | 119 | 64 | 42 | 13 | 11 | 9 | 7 | 9 | 6 | 59 | 116 | 89 | 86 | 49 | 146 | 264 | 1484 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | on | on | on | cross-off |
High Tide | 11:07AM0.33m | 00:02AM0.20m | 5:02AM0.19m | 00:52AM0.19m | 5:52AM0.19m | 12:31PM0.30m | 1:52AM0.18m | 6:39AM0.19m | 1:15PM0.28m | 7:21AM0.19m | 2:05PM0.27m | 7:52AM0.19m | 3:10PM0.25m | 7:34AM0.19m | 4:27PM0.25m | ||||||
Low Tide | 7:37PM0.03m | 7:27AM0.17m | 8:22PM0.05m | 3:11AM0.17m | 9:07PM0.06m | 3:29AM0.17m | 9:55PM0.08m | 9:17AM0.19m | 10:45PM0.09m | 10:06AM0.19m | 11:39PM0.10m | 11:11AM0.18m | 00:33AM0.11m | ||||||||
 | |  | | | |  |  |  | | | | | | | | | | | | | |
 | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — |
 | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:32 | — | — | 6:34 | — | — | 6:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 10 | 8 | 15 | 17 | 17 | 17 | 18 | 14 | 18 | 19 | 16 | 15 | 17 | 16 | 17 | 15 | 15 | 9 | 9 | 8 |
Feels °C | 5 | 6 | 3 | 13 | 15 | 15 | 13 | 15 | 12 | 17 | 17 | 14 | 14 | 17 | 15 | 11 | 8 | 8 | 2 | 4 | 5 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SE 9 | S 12 | ENE 5 | E 9 | S 9 | S 9 | S 9 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | S 14 |
| kJ | 116 | 251 | 225 | 146 | 119 | 64 | 42 | 13 | 11 | 23 | 7 | 6 | 6 | 6 | 116 | 89 | 86 | 49 | 40 | 25 | 1484 |
Swell 2 Height (m) Direction Period (s) | S 9 | E 8 | E 8 | E 8 | E 7 | E 12 | S 13 | S 8 | SE 8 | S 11 | S 10 | S 11 | E 12 | — | S 9 | S 11 | S 10 | E 12 | — | — | E 9 |
| kJ | 60 | 5 | 1 | 1 | 1 | 3 | 3 | 5 | 3 | 9 | 2 | 9 | 3 | — | 6 | 9 | 2 | 42 | — | — | 13 |
Swell 3 Height (m) Direction Period (s) | E 8 | — | — | E 12 | E 12 | E 8 | E 7 | S 13 | E 11 | E 10 | S 12 | S 7 | — | — | S 12 | — | E 14 | S 9 | — | — | — |
| kJ | 5 | — | — | 3 | 3 | 1 | 1 | 13 | 2 | 2 | 3 | 1 | — | — | 3 | — | 4 | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | NNE 4 | ENE 4 | E 4 | ENE 4 | E 4 | ENE 5 | — | E 6 | ENE 6 | ENE 5 | E 7 | — | W 3 | WSW 4 | SW 5 | SSW 6 | S 7 | — |
| kJ | — | — | 6 | 5 | 1 | 9 | 1 | 9 | 36 | — | 22 | 66 | 56 | 59 | — | 5 | 8 | 36 | 146 | 264 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 411 | 20 | 0 | 0 | 0 | 0 | 0 | 926 | 926 | 288 | 479 | 89 | 146 | 0 | 0 | 109 | 756 | 756 | 253 | 540 | 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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