Surf Forecasts:
Bikini surf forecast from 18 Jul 2026:
- Best quality surf: Saturday 18 Jul, 9AM (local time) - 2.5ft (0.8m), 10s period, E swell with glassy winds.
- Most powerful swell: Monday 20 Jul, 12AM (local time) - 8ft (2.5m), 8s period, S swell with 958 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 9AM (local time) - 2.5ft (0.8m), 10s 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 Saturday (Jul 18) at 9AM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.2m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bikini in the next 16 days are 2.5m 8s and forecast to arrive on Monday (Jul 20) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Saturday (Jul 25) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 18th Jul) | 2.5ft (0.8m) 10s |
| Best Surf | 9AM (Sat 18th Jul) | 2.5ft (0.8m) 10s |
| Most Powerful | 12AM (Mon 20th Jul) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Bikini over the next 16 days.
The Lowdown
Alright, grab a coffee, 'cause I'm about to break it down for you. I'm Rusty, and I've been reading the tea leaves on this one. Honestly, it's a slow burn. The first week and a half is a bust—from the 18th of July right through to the morning of the 29th, there's basically nothing worth getting wet for. The water temp is about 52°F, which is dead average for this time of year, so no surprises there.
The only real window of opportunity for this whole 16-day stretch comes at the very end, and it's all centered on Bikini. This is an advanced spot, so don't even think about it if you're learning.
The big day is Thursday, July 30th. We get a swell from the SSE pushing about 6ft, combined with glassy, flat-calm wind. That's as clean as it gets. The combined swell energy is a solid 479 (moderate wave energy), and the period is a punchy 8 seconds. Being a beach and point break, it'll handle that south swell just fine. It's a consistent wave, but it's advanced, so respect it. The afternoon keeps the wind offshore from the NNE, which is a dream. This is the absolute best of the forecast.
Friday, July 31st is still a go. The swell drops to 3ft from the S, but the period stretches to 11 seconds, giving it real grunt. The combined energy is 205, and with a light cross-off breeze, it'll be clean and tidy. It's a smaller day, but it'll be a fun one for a quiet paddle.
Then Saturday, August 1st brings a bigger pulse of E swell at 5ft, with a 9-second period. The combined energy jumps to 513 (strong wave energy). The wind is a cross-off from the NE, so it'll be clean. The forecast calls it marginal, but for the experienced crew, it's still a solid wave. Just expect crowds—this spot can get busy.
After that, it's back to onshore wind and dropping energy. So, if you're keen, mark your calendar for the 30th of July through the 1st of August. The 30th morning is the pick—glassy, solid, and perfect. Don't bother before that.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Sat night. Very mild (max 19°C on Sun morning, min 10°C on Mon morning). Winds increasing (calm on Sat morning, strong winds from the S by Sun night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Tue morning, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | E 10 | E 10 | E 10 | E 10 | E 10 | S 8 | SSE 8 | SSE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | SE 5 | SSE 6 | SE 7 | S 6 | S 9 | S 9 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 130 | 102 | 77 | 74 | 74 | 958 | 336 | 294 | 173 | 113 | 99 | 93 | 57 | 51 | 47 | 42 | 73 | 31 | 60 | 55 | 49 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | off | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:31AM0.29m | 11:10PM0.28m | 3:17AM0.21m | 00:07AM0.24m | 4:17AM0.21m | 12:16PM0.30m | 1:08AM0.22m | 5:09AM0.20m | 1:11PM0.30m | 2:19AM0.20m | 5:55AM0.20m | 2:08PM0.30m | 3:42AM0.19m | 3:06PM0.30m | 4:51AM0.19m | 4:00PM0.30m | |||||
Low Tide | 6:48PM0.04m | 7:15AM0.10m | 7:44PM0.04m | 3:01AM0.20m | 8:39PM0.04m | 3:34AM0.20m | 9:33PM0.04m | 4:14AM0.19m | 10:26PM0.05m | 5:16AM0.19m | 11:20PM0.06m | 10:43AM0.17m | 00:15AM0.06m | ||||||||
 |  |  |  | |  | |  |  | | | | | |  |  | | | | |  | |
 | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — |
 | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — |
mm | 6 | — | 11 | 4 | 5 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 17 | 17 | 15 | 19 | 16 | 12 | 11 | 11 | 13 | 13 | 13 | 12 | 13 | 13 | 11 | 11 | 12 | 11 | 14 | 15 | 13 |
Feels °C | 17 | 18 | 15 | 20 | 16 | 7 | 6 | 6 | 10 | 10 | 10 | 11 | 9 | 9 | 8 | 8 | 9 | 8 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | S 6 | E 10 | ENE 10 | ENE 10 | ENE 9 | ENE 10 | ENE 10 | SE 7 | ESE 7 | ESE 7 | ESE 7 | SE 8 | E 7 | SE 7 | ESE 6 | S 9 | S 9 | S 8 |
| kJ | 130 | 102 | 77 | 40 | 74 | 33 | 32 | 28 | 33 | 31 | 99 | 93 | 57 | 51 | 18 | 22 | 73 | 23 | 60 | 55 | 49 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | S 12 | E 10 | S 11 | — | S 9 | — | S 8 | S 8 | ENE 9 | S 7 | ENE 9 | S 7 | ENE 9 | S 9 | S 6 | S 6 | E 8 | SE 10 | SSE 12 |
| kJ | 14 | 3 | 3 | 74 | 2 | — | 6 | — | 12 | 10 | 15 | 9 | 16 | 8 | 7 | 14 | 20 | 31 | 5 | 4 | 28 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 7 | S 15 | S 11 | S 11 | — | — | — | — | — | S 8 | ENE 9 | SSE 7 | ENE 9 | S 10 | SE 9 | S 8 | SE 6 | SE 9 | S 13 | E 11 |
| kJ | 1 | 1 | 4 | 2 | 9 | — | — | — | — | — | 10 | 8 | 9 | 8 | 8 | 13 | 12 | 9 | 3 | 4 | 2 |
Wind waves Height (m) Direction Period (s) | — | S 3 | SE 4 | — | S 6 | S 8 | SSE 8 | SSE 7 | SE 7 | SE 7 | — | — | — | SSE 7 | SE 5 | SSE 6 | — | — | E 6 | E 5 | ENE 5 |
| kJ | — | 1 | 8 | — | 59 | 958 | 336 | 294 | 173 | 113 | — | — | — | 9 | 47 | 42 | — | — | 36 | 50 | 78 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 109 | 0 | 6 | 540 | 427 | 436 | 436 | 411 | 643 | 103 | 540 | 539 | 436 | 436 | 0 | 0 | 0 | 436 | 313 |
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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