Bikini Surf Forecast

/ South (25 surf breaks) /

Uruguay (54 surf breaks) / Lat Long: (34.88° S 54.77° W)

Surf Forecasts:

Bikini surfForecast / South / Uruguay

12 Day Weather and Surf, issued 2 am Thursday 18 Sep 2025 -03

Forecast update in hr min s Forecast update imminent

Bikini surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Bikini sea temperature is 14.1° C
(Which is 2.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Bikini this week:

The surf forecast for Bikini over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 6AM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.7m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Bikini in the next 12 days are 2.3m 12s and forecast to arrive on Sunday (Sep 21) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Saturday (Sep 20) at 3PM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	6AM (Thu 18th Sep)	2ft (0.6m) 12s
Best Surf	6AM (Wed 24th Sep)	4.5ft (1.3m) 10s
Most Powerful	9PM (Sun 21st Sep)	7.5ft (2.3m) 12s

Table - best surf conditions forecast for Bikini over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Heavy rain (total 23mm), heaviest during Sat night. Warm (max 22°C on Fri morning, min 13°C on Fri night). Wind will be generally light.									Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Mon afternoon. Very mild (max 15°C on Sun morning, min 9°C on Tue night). Winds decreasing (fresh winds from the SW on Mon night, light winds from the ESE by Tue night).
	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	2	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	E	E	E	E	S	E	SW	SSW	S	S	S	SSW	S	S	SSE	SSE	SSE	SSE
Period(s) (?)	12	12	11	7	8	8	8	9	5	7	7	12	11	11	6	8	9	10	10	13	13
Wave Graph (?)
kJ (?)	94	91	48	83	72	86	51	25	27	267	289	765	476	389	392	529	430	348	288	492	437
Wind (km/h)	ENE	ENE	NE	N	SSW	ESE	ENE	ENE	NW	SW	SW	SSW	WSW	SW	SW	SSW	SSW	SE	ENE	ENE	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	off	on	cross	cross- off	cross- off	cross- off	cross- on	on	on	cross- on	cross- on	cross- on	on	on	cross	cross- off	cross- off	off
High Tide / height (m)		5:04PM 0.29		5:39AM 0.23		6:07PM 0.28	6:27AM 0.25		7:02PM 0.28	7:11AM 0.27		7:52PM 0.27	7:53AM 0.29		8:38PM 12:53AM 0.26 0.20	8:33AM 0.31		9:22PM 1:54AM 0.25 0.20	9:12AM 0.32		10:04PM 2:50AM 0.24 0.19
Low Tide / height (m)		12:21PM 0.12	1:18AM 0.08		1:29PM 0.10	2:12AM 0.09		2:28PM 0.08		3:01AM 0.11	3:19PM 0.06		3:45AM 0.12	4:06PM 0.04	12:17AM 0.20	4:25AM 0.14	4:49PM 0.03	12:41AM 0.19	5:02AM 0.15	5:31PM 0.03	1:12AM 0.19

	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	6:33	-	-	6:33	-	-	6:31	-	-	6:30	-	-	6:28	-	-	6:26	-	-	6:26	-	-
Sunset	-	6:31	-	-	6:31	-	-	6:32	-	-	6:34	-	-	6:35	-	-	6:35	-	-	6:36	-

Rain (mm)	-	-	-	-	1	2	2	3	15	-	-	-	-	2	2	-	-	-	-	-	-
Temp. °C	18	19	17	22	21	15	17	17	18	15	13	12	14	14	12	12	12	10	12	14	12
Feels °C (?)	14	18	17	23	20	14	15	15	16	12	7	6	9	11	9	7	7	7	7	8	7

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for South

Wind Update Continuing clean conditions at Bikini (calm at Punta del Este wx 19 km from Bikini). A 0.7m groundswell from the ESE
2 hours 14 minutes ago Bikini

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19 km away, 2 h 14 min ago

5 km/h

0.0

14.1

Air / Water (°C)

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Bikini surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

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 12 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.